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  Subjects -> ENERGY (Total: 309 journals)
    - ELECTRICAL ENERGY (3 journals)
    - ENERGY (183 journals)
    - ENERGY: GENERAL (8 journals)
    - NUCLEAR ENERGY (33 journals)
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    - RENEWABLE ENERGY (31 journals)

ENERGY (183 journals)                 | Last

Showing 1 - 200 of 406 Journals sorted alphabetically
ActaEnergetica     Open Access  
Advances in Building Energy Research     Hybrid Journal   (Followers: 9)
Advances in Energy and Power     Open Access   (Followers: 11)
Advances in High Energy Physics     Open Access   (Followers: 19)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 29)
American Journal of Energy Research     Open Access   (Followers: 10)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 9)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 4)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 12)
Applied Nanoscience     Open Access   (Followers: 8)
Applied Solar Energy     Hybrid Journal   (Followers: 17)
Archives of Thermodynamics     Open Access   (Followers: 7)
Artificial Photosynthesis     Open Access   (Followers: 1)
Asian Bulletin of Energy Economics and Technology     Open Access   (Followers: 3)
Atomic Energy     Hybrid Journal   (Followers: 4)
Atoms for Peace: an International Journal     Hybrid Journal   (Followers: 3)
Batteries     Open Access   (Followers: 6)
Biofuel Research Journal     Open Access   (Followers: 4)
Biofuels     Hybrid Journal   (Followers: 11)
Biofuels Engineering     Open Access   (Followers: 1)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Bulletin de droit nucleaire     Full-text available via subscription   (Followers: 1)
Canadian Journal of Remote Sensing     Full-text available via subscription   (Followers: 45)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 21)
Carbon Management     Hybrid Journal   (Followers: 6)
Catalysis for Sustainable Energy     Open Access   (Followers: 7)
CERN courier. International journal of high energy physics     Free   (Followers: 7)
Chain Reaction     Full-text available via subscription  
Clefs CEA     Full-text available via subscription   (Followers: 1)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 4)
Dams and Reservoirs     Hybrid Journal   (Followers: 4)
Development of Energy Science     Open Access   (Followers: 4)
Distributed Generation & Alternative Energy Journal     Hybrid Journal   (Followers: 4)
E3S Web of Conferences     Open Access  
Economics and Policy of Energy and the Environment     Full-text available via subscription   (Followers: 8)
Electrical and Power Engineering Frontier     Open Access   (Followers: 24)
Electricity Journal     Partially Free   (Followers: 2)
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations     Open Access   (Followers: 1)
Energy     Partially Free   (Followers: 29)
Energy & Environment     Hybrid Journal   (Followers: 19)
Energy & Fuels     Full-text available via subscription   (Followers: 30)
Energy and Buildings     Hybrid Journal   (Followers: 11)
Energy and Emission Control Technologies     Open Access   (Followers: 4)
Energy and Environment Focus     Free   (Followers: 6)
Energy and Environment Research     Open Access   (Followers: 13)
Energy and Environmental Engineering     Open Access   (Followers: 7)
Energy and Power     Open Access   (Followers: 10)
Energy and Power Engineering     Open Access   (Followers: 21)
Energy Conversion and Management     Hybrid Journal   (Followers: 11)
Energy Efficiency     Hybrid Journal   (Followers: 11)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 4)
Energy Law Journal     Full-text available via subscription   (Followers: 4)
Energy Materials : Materials Science and Engineering for Energy Systems     Hybrid Journal   (Followers: 21)
Energy Policy     Partially Free   (Followers: 60)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 5)
Energy Procedia     Open Access   (Followers: 2)
Energy Reports     Open Access   (Followers: 5)
Energy Research & Social Science     Full-text available via subscription   (Followers: 7)
Energy Science & Engineering     Open Access   (Followers: 5)
Energy Science and Technology     Open Access   (Followers: 12)
Energy Storage Materials     Full-text available via subscription   (Followers: 2)
Energy Strategy Reviews     Partially Free   (Followers: 10)
Energy Studies Review     Open Access   (Followers: 6)
Energy Systems     Hybrid Journal   (Followers: 13)
Energy Technology     Partially Free   (Followers: 5)
Energy Technology & Policy     Open Access   (Followers: 2)
Energy, Sustainability and Society     Open Access   (Followers: 18)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 7)
EPJ Photovoltaics     Open Access   (Followers: 5)
Facta Universitatis, Series : Electronics and Energetics     Open Access  
Foundations and Trends® in Renewable Energy     Full-text available via subscription   (Followers: 1)
Frontiers in Energy     Hybrid Journal   (Followers: 4)
Frontiers in Energy Research     Open Access   (Followers: 4)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 6)
Functional Materials Letters     Hybrid Journal   (Followers: 3)
Gcb Bioenergy     Open Access   (Followers: 2)
Geomechanics for Energy and the Environment     Full-text available via subscription   (Followers: 1)
Geothermal Energy     Open Access   (Followers: 3)
Geothermal Energy Science     Open Access   (Followers: 1)
Green     Hybrid Journal   (Followers: 1)
Green Energy & Environment     Open Access   (Followers: 2)
IEA Electricity Information     Full-text available via subscription   (Followers: 4)
IEA Natural Gas Information     Full-text available via subscription   (Followers: 3)
IEEE Power and Energy     Full-text available via subscription   (Followers: 26)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 16)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 10)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 29)
IET Power Electronics     Hybrid Journal   (Followers: 33)
Ingeniería Energética     Open Access  
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 12)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 6)
International Journal of Ambient Energy     Hybrid Journal   (Followers: 1)
International Journal of Applied Power Engineering     Open Access   (Followers: 5)
International Journal of Clean Coal and Energy     Open Access   (Followers: 5)
International Journal of Coal Science & Technology     Open Access   (Followers: 1)
International Journal of Electric and Hybrid Vehicles     Hybrid Journal   (Followers: 9)
International Journal of Emerging Electric Power Systems     Hybrid Journal   (Followers: 7)
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 5)
International Journal of Energy and Power     Open Access   (Followers: 11)
International Journal of Energy and Statistics     Hybrid Journal   (Followers: 3)
International Journal of Energy Engineering     Open Access   (Followers: 11)
International Journal of Energy Research     Hybrid Journal   (Followers: 10)
International Journal of Energy Science     Open Access   (Followers: 2)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 9)
International Journal of Green Energy     Hybrid Journal   (Followers: 10)
International Journal of Hydrogen Energy     Partially Free   (Followers: 15)
International Journal of Marine Energy     Full-text available via subscription   (Followers: 1)
International Journal of Nuclear Desalination     Hybrid Journal  
International Journal of Nuclear Energy Science and Technology     Hybrid Journal   (Followers: 4)
International Journal of Nuclear Governance, Economy and Ecology     Hybrid Journal   (Followers: 2)
International Journal of Nuclear Hydrogen Production and Applications     Hybrid Journal   (Followers: 1)
International Journal of Nuclear Knowledge Management     Hybrid Journal   (Followers: 1)
International Journal of Ocean and Climate Systems     Open Access   (Followers: 8)
International Journal of Power and Energy Conversion     Hybrid Journal   (Followers: 3)
International Journal of Smart Grid and Green Communications     Hybrid Journal   (Followers: 1)
International Journal of Sustainable Energy     Hybrid Journal   (Followers: 13)
International Journal of Sustainable Energy Planning and Management     Open Access   (Followers: 3)
International Journal of Sustainable Engineering     Hybrid Journal   (Followers: 7)
International Journal of Thermodynamics     Open Access   (Followers: 8)
International Journal of Turbomachinery, Propulsion and Power     Open Access   (Followers: 1)
Journal of Building Performance Simulation     Hybrid Journal   (Followers: 6)
Journal of China Coal Society     Open Access  
Journal of Computational Multiphase Flows     Open Access  
Journal of Energy     Open Access   (Followers: 2)
Journal of Energy & Natural Resources Law     Hybrid Journal   (Followers: 4)
Journal of Energy Chemistry     Full-text available via subscription   (Followers: 3)
Journal of Energy in Southern Africa     Open Access   (Followers: 3)
Journal of Energy Storage     Full-text available via subscription   (Followers: 3)
Journal of Energy Technologies and Policy     Open Access   (Followers: 5)
Journal of Fusion Energy     Hybrid Journal   (Followers: 3)
Journal of International Energy Policy     Open Access   (Followers: 4)
Journal of Modern Power Systems and Clean Energy     Open Access   (Followers: 10)
Journal of Nano Energy and Power Research     Full-text available via subscription   (Followers: 5)
Journal of Nuclear Energy Science & Power Generation Technology     Hybrid Journal   (Followers: 5)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 3)
Journal of Physical Chemistry C     Full-text available via subscription   (Followers: 33)
Journal of Power and Energy Engineering     Open Access   (Followers: 1)
Journal of Radiological Protection     Full-text available via subscription   (Followers: 4)
Journal of Renewable Energy     Open Access   (Followers: 8)
Journal of Semiconductors     Full-text available via subscription   (Followers: 4)
Journal of Solar Energy     Open Access   (Followers: 11)
Journal of Solar Energy Engineering     Full-text available via subscription   (Followers: 20)
Journal of Sustainable Bioenergy Systems     Full-text available via subscription   (Followers: 1)
Journal of Sustainable Energy Engineering     Full-text available via subscription   (Followers: 2)
Journal of Technology Innovations in Renewable Energy     Hybrid Journal  
Materials for Renewable and Sustainable Energy     Open Access   (Followers: 8)
Materials Today Energy     Hybrid Journal  
Natural Resources     Open Access   (Followers: 2)
Nature Energy     Hybrid Journal   (Followers: 11)
Nigerian Journal of Technological Research     Full-text available via subscription   (Followers: 1)
Nuclear Data Sheets     Full-text available via subscription  
Nuclear Engineering and Design     Hybrid Journal   (Followers: 14)
Nuclear Law Bulletin     Full-text available via subscription   (Followers: 2)
Oil and Gas Journal     Full-text available via subscription   (Followers: 11)
Oil, Gas, Coal and Electricity - Quarterly Statistics - Electricite, charbon, gaz et petrole - Statistiques trimestrielles     Full-text available via subscription   (Followers: 9)
Open Journal of Energy Efficiency     Open Access   (Followers: 2)
Power Technology and Engineering     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Civil Engineers - Energy     Hybrid Journal   (Followers: 3)
Progress in Nuclear Energy     Hybrid Journal   (Followers: 2)
Protection and Control of Modern Power Systems     Open Access   (Followers: 1)
Radiochimica Acta     Hybrid Journal   (Followers: 5)
Radioprotection     Hybrid Journal   (Followers: 1)
Science and Technology of Nuclear Installations     Open Access   (Followers: 2)
Smart Grid and Renewable Energy     Open Access   (Followers: 8)
Solar Energy     Hybrid Journal   (Followers: 22)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 37)
SourceOCDE Energie nucleaire     Full-text available via subscription  
SourceOECD Nuclear Energy     Full-text available via subscription   (Followers: 1)
South Pacific Journal of Natural and Applied Sciences     Hybrid Journal  
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Structural Control and Health Monitoring     Hybrid Journal   (Followers: 9)
Surface Science Reports     Full-text available via subscription   (Followers: 20)
Sustainable Energy     Open Access   (Followers: 3)
Sustainable Energy Technologies and Assessments     Full-text available via subscription  
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 4)
Technology Audit and Production Reserves     Open Access  
Universal Journal of Applied Science     Open Access   (Followers: 2)
Washington and Lee Journal of Energy, Climate, and the Environment     Open Access   (Followers: 3)
Waste Management     Hybrid Journal   (Followers: 13)
Water International     Hybrid Journal   (Followers: 15)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 6)
Wind Energy     Hybrid Journal   (Followers: 3)
Wind Engineering     Hybrid Journal   (Followers: 2)

       | Last

Journal Cover Functional Materials Letters
  [SJR: 0.392]   [H-I: 19]   [3 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1793-6047 - ISSN (Online) 1793-7213
   Published by World Scientific Homepage  [118 journals]
  • V2O3 nanofoam@activated carbon composites as electrode materials of
           supercapacitors
    • Authors: Xun Zhang, Zhonglin Bu, Rui Xu, Bing Xie, Hong-Yi Li
      Abstract: Functional Materials Letters, Ahead of Print.
      Electrode materials with high performance and low cost are demanding in supercapacitor applications. Novel V2O3 nanofoam@activated carbon composites have been prepared simply and cost-efficiently. Due to the mesoporous structure and high specific surface of V2O3 nanofoam and the good electric conductivity of activated carbon, the obtained composites exhibit an obviously improved specific capacitance as high as 185[math]F/g, which overpasses bulk V2O3 (119[math]F/g) and activated carbon (113[math]F/g). The rate capability of V2O3 nanofoam@activated carbon composites has also been improved, owing to the increased electron transport accelerated by the activated carbon and the fast electrolyte ion intercalation/deintercalation facilitated by mesopores of V2O3 nanofoam. The composites retain 56% of initial specific capacitance when the current density increases from 0.05[math]A/g to 1.0[math]A/g. Therefore, the obtained V2O3 nanofoam@activated carbon composites are low-cost electrode materials with obviously improved electrochemical performance, which are idea for supercapacitor application.
      Citation: Functional Materials Letters
      PubDate: 2017-11-07T09:24:46Z
      DOI: 10.1142/S1793604717500771
       
  • Superconcentrated aqueous electrolyte to enhance energy density for
           advanced supercapacitors
    • Authors: Zengying Tian, Wenjun Deng, Xusheng Wang, Chunyi Liu, Chang Li, Jitao Chen, Mianqi Xue, Rui Li, Feng Pan
      Abstract: Functional Materials Letters, Ahead of Print.
      We here report a superconcentrated potassium acetate (KAC) solution (75[math]wt.%, K : H2O [math] 1 : 1.8, called as “water-in-salt”) as an aqueous electrolyte to improve the working voltage and increasing capacitance in enhancing the energy density of the active carbon-based aqueous supercapacitor. The stability potential window of the superconcentrated electrolyte realizes an AC//AC symmetric supercapacitor with operating voltage of 2.0 V and excellent cyclic performance. Meanwhile, the energy density of such supercapacitor achieves about twice as high as that of the supercapacitor using normal concentration of electrolyte.
      Citation: Functional Materials Letters
      PubDate: 2017-11-03T10:23:33Z
      DOI: 10.1142/S1793604717500813
       
  • Extraordinary infrared emittance property of Mo-, W-incorporated
           Sm[math]Sr[math]CoO[math]
    • Authors: Junyang Jin, Zhenggang Fang, Yaru Ni, Chunhua Lu, Zhongzi Xu
      Abstract: Functional Materials Letters, Ahead of Print.
      The Mo-, W-incorporated Sm[math]Sr[math]CoO[math] ceramics were prepared by the tape casting and high temperature sintering method. The effects of Mo and W concentration on the structure and optical properties of Sm[math]Sr[math]CoO[math] were investigated in detail. It was found that the Mo-, W-incorporated Sm[math]Sr[math]CoO[math] exhibited extraordinary emittance property in the 3–5[math][math]m and 8–13[math][math]m (especially in the 11–13[math][math]m) wavelength ranges. The results suggest that the novel infrared emittance property of Mo- and W-incorporated Sm[math]Sr[math]CoO[math] could find potential applications in solar thermal or radiative cooling systems.
      Citation: Functional Materials Letters
      PubDate: 2017-11-03T10:23:33Z
      DOI: 10.1142/S1793604717500837
       
  • Mesoporous cellular-structured carbons derived from glucose–fructose
           syrup and their adsorption properties towards acetaminophen
    • Authors: George Tzvetkov, Tony Spassov, Nina Kaneva, Boyko Tsyntsarski
      Abstract: Functional Materials Letters, Ahead of Print.
      Here, a series of cellular-structured and predominantly mesoporous carbons were prepared via carbonization of glucose–fructose syrup (GFS) with sulfuric acid and subsequent calcination between 400[math]C and 700[math]C. Comparative results on the microstructure, chemical and textural properties of the newly produced carbons are presented. Furthermore, their adsorption performance for removal of acetaminophen from water was tested and it was found that the carbon calcined at 700[math]C has a maximum adsorption capacity (98.7[math]mg[math]g[math]) among all samples due to its suitable textural properties (BET surface area of 418[math]m[math]g[math] and total pore volume of 0.2[math]cm[math]g[math]). This study demonstrates the potential use of GFS as a precursor in the preparation of carbonaceous materials for removal of biologically-active micropollutants from water.
      Citation: Functional Materials Letters
      PubDate: 2017-11-03T10:23:32Z
      DOI: 10.1142/S1793604717500801
       
  • Sol–gel synthesis of erbium-doped ZnO with nest structure for
           photocatalysis
    • Authors: Chun Li, Zuoyun Yan, Yuan Zhou, Shuang Zhao, Xiaotao Zhang, Xianliang Sheng
      Abstract: Functional Materials Letters, Ahead of Print.
      Rare earth erbium-doped ZnO samples were synthesized via a facile sol–gel method. The influences of Er-doping on structural properties, morphological features and optical properties were characterized by XRD, BET, SEM and UV–Vis DRS techniques. The results showed that the as-synthesized products were well crystallined in the absence of impurity phases and Er-doping resulted in the reduction of bandgap energy deducted from the UV–Vis DRS results. Amongst the samples, layer-like 0.5% Er-doped ZnO with nest structure achieved the highest photodegradation (90.7%) of methylene blue (MB) after UV light irradiation for 2[math]h. The kinetic studies of MB degradation over different Er-doped ZnO were also conducted and proved to obey the pseudo-first-order kinetics.
      Citation: Functional Materials Letters
      PubDate: 2017-11-03T10:23:32Z
      DOI: 10.1142/S1793604717500825
       
  • Fabrication of TiO2/CuO photoelectrode with enhanced solar water splitting
           activity
    • Authors: Timur Sh. Atabaev, Dae Hun Lee, Nguyen Hoa Hong
      Abstract: Functional Materials Letters, Ahead of Print.
      A bilayered TiO2/CuO photoelectrode was fabricated on a fluorine-doped tin oxide FTO substrate by spin-coating and pulsed laser deposition methods. The prepared bilayered system was assessed as a photoelectrode for solar water splitting. The fabricated TiO2/CuO photoelectrode exhibited a higher photocurrent density (0.022[math]mA/cm2 at 1.23[math]V vs. RHE) compared to bare TiO2 photoelectrode (0.013[math]mA/cm2 at 1.23[math]V vs. RHE). This photocurrent density enhancement was attributed to the improved charge separation combined with the improved sunlight harvesting efficiency of a bilayered structure.
      Citation: Functional Materials Letters
      PubDate: 2017-11-03T10:23:32Z
      DOI: 10.1142/S1793604717500849
       
  • Morphology-dependent catalytic activity of plasmonic MoO3−x for
           hydrolytic dehydrogenation of ammonia borane
    • Authors: Jie Gong, Zhixue Li, Ting Zhang, Runze Chen, Xiaoying Zheng, Gaoke Zhang
      Abstract: Functional Materials Letters, Ahead of Print.
      Series of plasmonic MoO[math] particles have been prepared by a facile solvothermal method to produce hydrogen via hydrolytic dehydrogenation of ammonia borane. Interestingly, the as-prepared MoO[math] particles present various morphologies, i.e. flower, schistose and nanorod by simply tuning the reaction temperature and solvent volume ratio of distilled water and acetic acid. More importantly, these MoO[math] particles with different morphologies exhibit various catalytic performances of NH3BH3 under the irradiation of visible light. Particularly, the flower-like MoO[math] microstructure possesses the best catalytic activity for hydrogen production probably owing to the relatively large surface area and strong LSPR in the visible region.
      Citation: Functional Materials Letters
      PubDate: 2017-10-30T08:04:50Z
      DOI: 10.1142/S1793604717500795
       
  • Black phosphorus quantum dots/attapulgite nanocomposite with enhanced
           photocatalytic performance
    • Authors: Xiazhang Li, Feihong Li, Xiaowang Lu, Shixiang Zuo, Ziheng Zhuang, Chao Yao
      Abstract: Functional Materials Letters, Ahead of Print.
      Novel black phosphorus quantum dots/attapulgite (BPQDs/ATP) nanocomposites were prepared via a facile hydrothermal-deposition method. TEM showed that BPQDs dispersed evenly on the surface of ATP with uniform particle size about 5[math]nm. UV-Vis revealed that the BPQDs/ATP composite showed wider visible light absorption range as compared with pure ATP. The photocatalytic activity was evaluated by degradation of bisphenol A (BPA). Results showed that BPQDs/ATP reached 90% degradation rate under solar light irradiation for 180[math]min. The coherent heterostructure formed by BPQDs and ATP was responsible for the enhanced photocatalytic performance, due to the sensitization effect of BPQDs and the facilitation of charges separation.
      Citation: Functional Materials Letters
      PubDate: 2017-10-30T08:04:49Z
      DOI: 10.1142/S1793604717500783
       
  • Improved electrochemical properties of flower-like Co hierarchitectures as
           anode materials for alkaline secondary batteries
    • Authors: Hongqi Shi, Jiajia Li, Meng Yang, Xiangyu Zhao
      Abstract: Functional Materials Letters, Ahead of Print.
      Co-based anode materials are regarded as high capacity anode for alkaline secondary batteries. Their application, however, is limited by poor cycling stability. Herein, flower-like Co hierarchitectures with hcp crystal structure were synthesized by a simple chemical reduction method. The as-prepared Co electrode shows a high maximum discharge capacity of 509[math]mAh/g at 100[math]mA/g and good rate capability. Nevertheless, the discharge capacity decreased to 337[math]mAh/g after 50 cycles due to dissolution of the Co electrode into the electrolyte. The addition of Na2S2O3 in the electrolyte can restrain this dissolution and contributes to significant improvement in the cycling stability. A high reversible discharge capacity of 480[math]mAh/g was retrained after 50 cycles when the electrolyte with 0.02[math]M Na2S2O3 addition was employed, yielding an excellent cycling performance.
      Citation: Functional Materials Letters
      PubDate: 2017-10-19T09:07:06Z
      DOI: 10.1142/S179360471750076X
       
  • Analysis of the characteristics of thick-film NTC thermistor devices
           manufactured by screen-printing and firing technique and by room
           temperature aerosol deposition method (ADM)
    • Authors: Michaela Schubert, Jaroslaw Kita, Christian Münch, Ralf Moos
      Abstract: Functional Materials Letters, Ahead of Print.
      The study compares thick-film NTC thermistor devices, produced by the screen-printing (and firing) technique and by the Aerosol Deposition Method (ADM) at room temperature. The devices are compared with respect to film quality (optical, mechanical) and to the negative temperature coefficient of resistance (NTCR) parameters [math] and [math]. While the screen-printed films are porous, the Aerosol Deposited (AD) films are characterized by high tightness, mechanical stability, and a production at room temperature. The electrical analysis shows that the AD films reach the [math]- and [math]-values of bulk NTCRs from literature after a moderate tempering step below 400[math]C in air. The screen-printed films show [math]-values that are comparable to the values of bulk NTCRs from literature and [math]-values that are significantly higher.
      Citation: Functional Materials Letters
      PubDate: 2017-10-19T09:07:05Z
      DOI: 10.1142/S1793604717500734
       
  • Preparation of hollow Fe3O4 spheres through a facile method and their
           applications
    • Authors: Xingping Wu, Aiping Zhu, Zhaodong Nan
      Abstract: Functional Materials Letters, Ahead of Print.
      Fe3O4 hollow microspheres with good dispersibility and high saturation magnetization were synthesized through a facile one-step solvothermal method. The formation mechanism of the hollow structure was studied by taking time-dependent experiments. Porous [math]-FeOOH and [math]-Fe2O3 nanosheets were firstly fabricated. Fe3O4 solid spheres aggregated by small particles were obtained from the transition of [math]-FeOOH and [math]-Fe2O3. Finally, the solid sphere is transferred to hollow sphere through Ostwald ripening. The maximum saturation magnetization of the hollow spheres is [math][math] emu/g, which is higher than some results reported in references. The Fe3O4 hollow spheres show potential applications in microwave absorption and photocatalysis.
      Citation: Functional Materials Letters
      PubDate: 2017-10-19T09:07:05Z
      DOI: 10.1142/S1793604717500758
       
  • Mixed Mn[math]/Mn[math] in high-voltage nano-structured lithium nickel
           manganese oxide cathode with a P4332 structure
    • Authors: Yu Li, Yi-Jie Gu, Yun-Bo Chen, Hong-Quan Liu, Yong-Qin Han, Hai-Feng Wang, Heng-Hui Zhou
      Abstract: Functional Materials Letters, Ahead of Print.
      In this paper, we have synthesized LiNi[math]Mn[math]O4 with P4332 space group by carbonate co-precipitation. TG/DSC, TG*, ICP-OES, a gas displacement pycnometer using He gas, XPS, and XRD refinement results show that oxygen vacancies exist in the LiNi[math]Mn[math]O[math] with a P4332 space group. There is a mixture of Mn[math] and Mn[math] in the P4332 structured LiNi[math]Mn[math]O[math]. Despite the large amount of Mn[math] in the spinel structure, no 4.0[math]V plateau appears in charge–discharge curves. This result indicates that the Mn[math] in LiNi[math]Mn[math]O[math] does not participate in electrochemical reactions during the charge–discharge process.
      Citation: Functional Materials Letters
      PubDate: 2017-10-19T09:07:05Z
      DOI: 10.1142/S1793604717500746
       
  • MgO-based nanosheets loaded with ZnxMg[math]O nanoparticles with UV
           light-driven photocatalytic performance
    • Authors: Junshu Wu, Linlin Wang, Jinshu Wang, Yucheng Du, Yongli Li
      Abstract: Functional Materials Letters, Ahead of Print.
      This paper reports the synthesis of MgO-based nanosheets loaded with UV-light absorbed, wurtzite ZnxMg[math]O nanoparticles based on calcining Zn[math]-adsorbed Mg(OH)2 precursor, as evidenced by X-ray diffraction, UV-visible, X-ray photoelectron spectroscopy analyses, etc. The surface modification of magnesium oxide (MgO) sheet-like adsorbents by Zn–Mg–O alloys generates photocatalytic activity for the degradation removal of cationic dye Rhodamine B and anionic dye methyl orange under UV light irradiation. These findings provide a route to chemically controlled synthesis of new and highly robust MgO–ZnxMg[math]O materials for water purification. The endowed photocatalysis function of MgO makes it be easily recovered via photodegradation of adsorbed dyes rather than high-temperature calcination, thus extending the applications of MgO in dye wastewater treatment.
      Citation: Functional Materials Letters
      PubDate: 2017-09-28T04:14:14Z
      DOI: 10.1142/S1793604717500722
       
  • In situ synthesis of Co–Ni nanocomposite catalysts of the partial
           oxidation of methane from K2NiF4-like complex oxide precursors
    • Authors: S. A. Malyshev, O. A. Shlyakhtin, G. N. Mazo, A. S. Loktev, A. G. Dedov, I. I. Moiseev
      Abstract: Functional Materials Letters, Ahead of Print.
      Oxide precursors NdCaCo[math]NixOn ([math]) are obtained by the solid-state synthesis method at 1100[math]C. According to XRD analysis, the main components of these precursors are complex oxides with K2NiF4-like structure at [math] and with rhombically distorted K2NiF4 structure at [math]. A thermal decomposition of these precursors in the mixture of CH4/O[math] at T [math] 800[math]C results in the formation of dense metal-oxide nanocomposite particles. As-obtained nanocomposites demonstrated a considerable catalytic activity and selectivity in the reaction of partial oxidation of methane; their catalytic properties vary non-monotonously with Co/Ni ratio. The maximum CH4 conversion and CO selectivity at 820[math]C is demonstrated by the composite comprising Nd2O3, CaO, NiO and Ni metal nanoparticles.
      Citation: Functional Materials Letters
      PubDate: 2017-09-20T02:33:41Z
      DOI: 10.1142/S1793604717500710
       
  • Improved dielectric properties and microwave absorbing properties of SiC
           Nanorods/Ni core-shell structure
    • Authors: Huijing Yang, Qinlu Wang, Li Wang, Zelin Zhang, Yuanlin Li, Maosheng Cao
      Abstract: Functional Materials Letters, Ahead of Print.
      We synthesized SiC nanorods/Ni core-shell structure (SiCR-Ni) by a facile solution method and researched their dielectric and microwave absorption properties. The dielectric and microwave absorbing properties of SiCR-Ni are superior to SiC nanorods (SiC[math]. The maximum absorption peak of SiCR-Ni is almost three times that of SiCR. The bandwidth of effective absorption of SiCR-Ni covers 64% of [math]-band. The improved properties of SiCR-Ni originate from multi-polarization in the special core-shell structure of SiCR-Ni.
      Citation: Functional Materials Letters
      PubDate: 2017-09-20T02:33:41Z
      DOI: 10.1142/S1793604717500692
       
  • Electrostatic self-assembly of exfoliated niobate nanosheets (Nb3O[math])
           and cobalt porphyrins (CoIIITMPyP) utilized for rapid construction of
           intercalated nanocomposite and exploration of electrocatalysis towards
           oxygen reduction
    • Authors: Jiasheng Xu, Mengjun Wang, Binbin Pan, Jinpeng Li, Bin Xia, Xiaobo Zhang, Zhiwei Tong
      Abstract: Functional Materials Letters, Ahead of Print.
      To prepare the novel plate-like nanocomposite CoIIITMPyP/Nb3O8, the cationic cobalt (III) tetrakis–5, 10, 15, 20–(N–methyl–4–pyridyl) porphyrin (CoIIITMPyP) was intercalated into the interlayer of the perovskite structural material KNb3O8 via the electrostatic self-assembly of the positively charged CoIIITMPyP molecules and the electronegative Nb3O[math] nanosheets. The Nb3O[math] nanosheets was obtained by exfoliating the protonated product of niobate KNb3O8 in the tetrabutyl ammonium hydroxide (TBA[math]OH[math]) aqueous solution. The zeta potential was measured to indicate the stability and uniformity of the Nb3O[math] nanosheet colloidal dispersion, and the structure and component of the parent material KNb3O8, the acidified product HNb3O8, and the interlayered nanocomposite CoIIITMPyP/Nb3O8 were characterized using XRD, FT-IR, SEM and AFM. Furthermore, the electrocatalytic activity toward the oxygen reduction reaction (ORR) of CoIIITMPyP/Nb3O8 hybrids modified GCE was investigated by the cyclic voltammetry (CV) measurements. The modified GCE exhibited good electrocatalytic activity toward ORR in consideration of the peak shift from [math]0.723[math]V to [math]0.300[math]V. The linear correlation of the reduction peak current and the square root of the scan rate suggested a diffusion controlled process.
      Citation: Functional Materials Letters
      PubDate: 2017-09-20T02:33:40Z
      DOI: 10.1142/S1793604717500709
       
  • Fabrication of stable photoanode built from ZnO nanosheets in situ
           decorated with carbon film
    • Authors: Weiqiang Fan, Yilin Ge, Biyi Chen, Hongye Bai, Weidong Shi
      Abstract: Functional Materials Letters, Ahead of Print.
      In this work, we successfully fabricated a novel stable photoanode, which was built from ZnO nanosheets in situ decorated with carbon film (ZnO/carbon). The thin carbon film, as a passivation layer, can not only improve the photoelectrochemical (PEC) performance, but also significantly depress the photocorrosion of ZnO. Compared with bare ZnO photoanode, the photocurrent density of ZnO/carbon has been increased nearly five times, and its IPCE value can be up to 27% (0.5[math]V versus Ag/AgCl). Moreover, the XRD, SEM and TEM data further demonstrate the crystal and microscopic structure of ZnO/carbon in detail.
      Citation: Functional Materials Letters
      PubDate: 2017-09-15T09:11:49Z
      DOI: 10.1142/S1793604717500680
       
  • Insight into sulfur vacancy-induced insulator to metal transition of Li2S
    • Authors: Yong Pan
      Abstract: Functional Materials Letters, Ahead of Print.
      Sulfur vacancy-induced charge carrier trap is quite important for improving the insulating characteristic of Li2S. In this work, we apply the first-principle calculations to investigate the influence of sulfur intrinsic vacancy and sulfur vacancy concentration on the structure and conductivity of Li2S. Sulfur intrinsic vacancy is dynamically stable. Importantly, sulfur vacancy reduces the band gap of Li2S. The calculated band gap of sulfur intrinsic vacancy is 0.700[math]eV. We suggest that the removed sulfur atom leads to Li-2[math] state shift from conduction band to Fermi level and improves the charge overlap between the top of valence band (VB) and the bottom of conduction band (CB). The strong charge interaction of Li pairing atoms forms the Li–Li metallic bond. Finally, we predict that sulfur vacancy gives rise to the insulator to metal transition of Li2S. Our works open up a new possibility for improving the conductivity of Li2S.
      Citation: Functional Materials Letters
      PubDate: 2017-09-12T03:27:49Z
      DOI: 10.1142/S1793604717500679
       
  • Synthesis and luminescence properties of new red phosphor YBiW2O9:Eu[math]
    • Authors: Zhi Xie, Wang Zhao, Wei-Wei Zhou, Fu-Gui Yang
      Abstract: Functional Materials Letters, Ahead of Print.
      A new series of YBiW2O9:Eu[math] phosphors were successfully synthesized by the solid-state reaction method for the first time. Pure phase formation of YBiW2O9:Eu[math] was confirmed by X-ray powder diffraction. It is found that the 7F[math]L6 transition results in the strongest near-ultraviolet excitation centered at 395 nm and the phosphors show strong electric-dipole (ED) transitions (5D[math]F[math] with red emission peaking at 616[math]nm. The optimal Eu[math] doping concentration of 70[math]mol.% is presented in YBiW2O9:Eu[math] phosphors. The Y[math]BiW2O9:0.7Eu[math] phosphor has better Commission Internationale de l’Eclairage chromaticity coordinate of (0.669, 0.328) in comparison with commercial red-emitting phosphors (Y2O2S:Eu[math], Y2O3:Eu[math]. The internal quantum efficiency of Y[math]BiW2O9:0.7Eu[math] was measured to be 45.1%, and temperature-dependent luminescence shows its good thermal stability. All the results suggest that YBiW2O9:Eu[math] is a potential candidate of red phosphor for the applications in white light emitting diodes.
      Citation: Functional Materials Letters
      PubDate: 2017-09-12T03:27:48Z
      DOI: 10.1142/S1793604717500667
       
  • Electrodeposited Co–Zn on Ni foam as efficient catalysts for hydrogen
           generation from hydrolysis of sodium borohydride
    • Authors: Lei Wei, Maixia Ma, Yanhong Lu, Suling Zhang, Jing Gao, Xiaolong Dong
      Abstract: Functional Materials Letters, Ahead of Print.
      For hydrogen generation based on the sodium borohydride hydrolysis, the development and application of efficient catalysts are of key importance. In this work, Co and Co–Zn catalysts were prepared on Ni foam by electrodeposition process. Field-emission scanning electron microscopy (FE-SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were employed for materials characterization, and catalyst performance was measured by typical water-displacement method. Experimental results indicate that the doping of zinc affects the morphology and microstructure of catalyst and promotes the effective catalytic area, leading to higher hydrogen generation rate (HGR) by comparing with Co/Ni. Furthermore, HGR can be further improved by treating the Co–Zn/Ni with NaOH solution because the partial dissolving of zinc results in the increase of cobalt active sites. Using a 10[math]wt.% NaBH4 and 5[math]wt.% NaOH solution, the HGR was as high as 455[math]mL min[math] g[math] at 25[math]C, and the apparent activation energy was measured to be 50.2[math]kJ mol[math]. Cyclic performance of the NaOH-treated Co–Zn/Ni was investigated as well.
      Citation: Functional Materials Letters
      PubDate: 2017-09-08T03:00:25Z
      DOI: 10.1142/S1793604717500655
       
  • Substrate chemistry regulates the surface phase separation of polyurethane
           films
    • Authors: Juan Xing, Xianchao Pan, Jinfeng Wang, Yanfeng Luo
      Abstract: Functional Materials Letters, Ahead of Print.
      The effect of substrate chemistry on surface phase separation of polyurethane films were investigated by using self-assembled monolayer (SAM) with chemically different modifications, i.e. hydroxy (–OH) and methyl (–CH3) end groups. Results showed that hydrophilic (–OH) and hydrophobic end groups (–CH[math] could respectively promote the aggregation of hard and soft segments at polyurethane–substrate interface, which further regulates the phase separation of polyurethane surface that contacts the substrate. The aggregation of hard segments tended to enhance the surface smoothness of polyurethane films, especially on hydrophilic substrates with hydroxy modification. Further analysis of tensile testing revealed that the regulation of surface phase separation had no effect on the shape memory effect of polyurethane films. These findings suggest that the chemical properties of the substrates could regulate the phase separation and may provide some guidance on the design of specific polyurethane with desired morphology and properties.
      Citation: Functional Materials Letters
      PubDate: 2017-09-05T01:14:58Z
      DOI: 10.1142/S1793604717500631
       
  • Facile synthesis and formation mechanism of uniform antimony nanotubes
    • Authors: Xinwei Wang, Shichen Su, Dan Fang, Haoran Zhang, Dengkui Wang, Jilong Tang, Xiaohua Wang, Fangjun Jin, Zhipeng Wei
      Abstract: Functional Materials Letters, Ahead of Print.
      One-dimensional tubular antimony (Sb) nanomaterials were successfully synthesized via a facile template-free solvothermal reduction process. These as-synthesized Sb nanotubes exhibited a middle-hollow, multi-walled, open-ended structures with the average size of lengths and diameters for [math][math]nm. Also, they show the rhombohedral phase and good crystallinity in nature. Based on the crystal structures and morphologies evolution of Sb nanomaterials by the temperature-dependent reactions, the formation mechanism of Sb nanotubes has been proposed to be that the nanosized clusters nucleated first and then self-assembly aggregated into thin nanosheets and finally rolled into the nanotubes through some driving forces, namely, a rolling-up mechanism.
      Citation: Functional Materials Letters
      PubDate: 2017-09-05T01:14:57Z
      DOI: 10.1142/S1793604717500643
       
  • Novel corn cob-like Fe3O4@Ni3S2 as high-performance electrode for
           supercapacitors
    • Authors: An Ye, Yanwei Sui, Yongpeng Han, Zhi Sun, Jiqiu Qi, Fuxiang Wei, Yezeng He, Qingkun Meng
      Abstract: Functional Materials Letters, Ahead of Print.
      Corn cob-like Fe3O4@Ni3S2 nanocomposites was synthesized through a facile two-step hydrothermal process. The precursor was obtained by a facile calcination of a Fe-MOF template, then, nickel sulfide coated on iron oxide composites were synthesized using a hydrothermal method. In addition, the fabricated Fe3O4@Ni3S2 electrode revealed a great electrical performances with a maximum specific capacitance of 1200[math]F[math]g[math] at 1[math]A[math]g[math], a capacitance retention of 83% could be observed after 1000 cycles at a great charge–discharge current density of 5[math]A[math]g[math]. We believed that the excellent performance might be ascribed to the synergistic effect between the Fe3O4and Ni3S2. Thus, the results demonstrate the corn cob-like Fe3O4@Ni3S2 composite is prominent candidate in the field of supercapacitor applications.
      Citation: Functional Materials Letters
      PubDate: 2017-08-25T07:18:49Z
      DOI: 10.1142/S179360471750062X
       
  • The temperature effect on the magneto-mechanical response of
           magnetostrictive composites for stress sensing applications
    • Authors: Alexander Yoffe, Hadas Kaniel, Doron Shilo
      Abstract: Functional Materials Letters, Ahead of Print.
      Stress induced magnetic field changes in epoxy-based Terfenol-D composite materials offer a unique way for stress sensing by using a remote magnetic field sensor. In this paper, we report simultaneous measurements of the stress, strain and emitted magnetic field during compressive tests performed at different temperatures in the range of [math]C–65[math]C. The observed results are explained based on the physical processes that occur at different stresses and temperature ranges. Measurement results reveal a temperature range ([math]C–45[math]C) suitable for stress sensing applications, at which the reverse magnetostrictive response is almost temperature insensitive. At 65[math]C, the epoxy demonstrated a significant softening due to the glass transition, indicating that a high glass transition temperature is an important desired property for the epoxy matrix.
      Citation: Functional Materials Letters
      PubDate: 2017-08-25T07:18:48Z
      DOI: 10.1142/S1793604717500606
       
  • Cobalt and sulfur co-doped TiO2 nanostructures with enhanced
           photo-response properties for photocatalyst
    • Authors: Qiu Jin, Chaoyin Nie, Qianqian Shen, Yusheng Xu, Yanzhong Nie
      Abstract: Functional Materials Letters, Ahead of Print.
      Cobalt (Co) and sulfur (S) co-doped titanium dioxide (TiO2) catalysts were synthesized via sol–gel method. The structure of TiO2was characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). The valence states of elements were studied by X-ray photoelectron spectroscopy (XPS), and the optical-absorption properties of the catalysts were tested using the ultraviolet–visible (UV–Vis) spectrophotometer. The results showed that the grain sizes of Co and S co-doped TiO2 decreased with the increase of Co and S doping concentration within a certain range, and then the catalysts had obvious red shift on the absorption of visible light. Sample (2%Co–5%S–TiO2) showed excellent light absorption characteristics and the photo-response threshold increased significantly to about 760[math]nm. Also, the further degradation test under visible light shows the 2%Co–5%S-TiO2 sample exhibit apparently improved degradation efficiency for Rhodamine B compared to the undoped one.
      Citation: Functional Materials Letters
      PubDate: 2017-08-25T07:18:48Z
      DOI: 10.1142/S1793604717500618
       
  • Fabrication of CaFe2O4 nanofibers via electrospinning method with enhanced
           visible light photocatalytic activity
    • Authors: Jianmin Wang, Yunan Wang, Yinglei Liu, Song Li, Feng Cao, Gaowu Qin
      Abstract: Functional Materials Letters, Ahead of Print.
      CaFe2O4 nanofibers with diameters of about 130[math]nm have been fabricated via a facile electrospinning method. The structures, morphologies and optical properties of the obtained CaF2O4 nanofibers have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV–Visible UV–Vis diffuse reflectance spectrum. The photocatalytic activities of the CaFe2O4 nanofibers are evaluated by the photo-degradation of Methyl orange (MO). The results show that the CaFe2O4 nanofibers (72%) exhibit much higher photocatalytic performance than the CaFe2O4 powders (27%) prepared by conventional method under visible light irradiation. The enhanced photocatalytic performance of CaFe2O4 nanofibers could be attributed to the large surface area, high photogenerated charge carriers density and low charge transfer resistance, as revealed by photoelectrochemical measurement. And fundamentally, it could be attributed to the decreased particle size and the fibrous nanostructure. This work not only provides an efficient way to improve the photocatalytic activity of CaFe2O4, but also provides a new method for preparing materials with nanofibrous structure.
      Citation: Functional Materials Letters
      PubDate: 2017-08-23T10:04:24Z
      DOI: 10.1142/S1793604717500588
       
  • Investigation of facets-dependent photoactivity of anatase TiO2 nanobelt
           with high percentage of {100} facets
    • Authors: Wenhao Dong, Feng Pan, Hailong Wang
      Abstract: Functional Materials Letters, Ahead of Print.
      Recently, semiconductor nanomaterials with exposed high percentage of reactive facets have attracted great attention due to their excellent photocatalytic performances. In this report, anatase titanium dioxide (TiO2) nanobelts with dominant {100} facets were synthesized by a hydrothermal method. The percentage of desired {100} facets were as high as up to 74.8%, and the photoactivity of anatase TiO2 {100} and {001} facets were evaluated and compared by methylene blue and rhodamine B photodegradation. The {100} facets show higher photocatalytic activity than {001} facets, which could be ascribed to the superior electronic band structure and higher surface active sites density of {100} facets than that of {001} facets.
      Citation: Functional Materials Letters
      PubDate: 2017-08-23T10:04:24Z
      DOI: 10.1142/S179360471750059X
       
  • Facile synthesis of [math]-MnO2/rice husk-based-activated carbon and its
           electrochemical properties
    • Authors: Xiaolan Song, Hailong Duan, Ying Zhang, Haibo Wang, Hongyun Cao
      Abstract: Functional Materials Letters, Ahead of Print.
      In this study, composite [math]-MnO2/activated carbon (AC) was prepared by chemical deposition method, and then it was assembled into electrode and electrochemical capacitor. Effects of reaction temperature and MnO2 content were studied. Materials were characterized by X-ray diffraction, scanning electron microscope and electrochemical test. MnO2 prepared at 30[math]C was amorphous, and it displayed the high specific capacitance as nearly four times as MnO2 at 80[math]C. Due to MnO2 particles which would block carbon pores when its content was too high, the composite containing 30% of MnO2 exhibited the largest specific capacitance of 278.3[math]F/g at 0.2[math]A/g in K2SO4 electrolyte. The equivalent series resistance and charge transfer resistance of material were only 1.35[math][math] and 1.41[math][math], respectively. After 1000 cycles, the capacitance retention was still 91.6%. It indicated that chemical deposition was a facile, low cost and effective method to prepare MnO2/AC with good electrochemical performances.
      Citation: Functional Materials Letters
      PubDate: 2017-08-08T07:42:06Z
      DOI: 10.1142/S1793604717500576
       
  • Characterization of Fe3O4@CS@NMDP magnetic nanoparticles with core–shell
           structure prepared by chemical cross-linking method
    • Authors: Huiping Shao, Jiangcong Qi, Tao Lin, Yuling Zhou, Fucheng Yu
      Abstract: Functional Materials Letters, Ahead of Print.
      The core–shell structure composite magnetic nanoparticles (NPs), Fe3O4@chitosan@nimodipine (Fe3O4@CS@NMDP), were successfully synthesized by a chemical cross-linking method in this paper. NMDP is widely used for cardiovascular and cerebrovascular disease prevention and treatment, while CS is of biocompatibility. The composite particles were characterized by an X-ray diffractometer (XRD), a Fourier transform infrared spectroscopy (FT-IR), a transmission electron microscopy (TEM), a vibrating sample magnetometers (VSM) and a high performance liquid chromatography (HPLC). The results show that the size of the core–shell structure composite particles is ranging from 12[math]nm to 20[math]nm and the coating thickness of NMDP is about 2[math]nm. The saturation magnetization of core–shell composite NPs is 46.7[math]emu/g, which indicates a good potential application for treating cancer by magnetic target delivery. The release percentage of the NMDP can reach 57.6% in a short time of 20[math]min in the PBS, and to 100% in a time of 60[math]min, which indicates the availability of Fe3O4@CS@NMDP composite NPs for targeting delivery treatment.
      Citation: Functional Materials Letters
      PubDate: 2017-07-28T11:41:46Z
      DOI: 10.1142/S1793604717500564
       
  • A novel ZrHIO[math]H2O catalyst for degradation of organic dyes at room
           temperature
    • Authors: Jiayin Li, Xinping Ma, Meifan Qian, Haoran Liu, Caixian Zhao, Li Tian, Lijuan Chen, Jianting Tang
      Abstract: Functional Materials Letters, Ahead of Print.
      It is interesting to obtain catalysts to degrade organic dye pollutants at room temperature for simultaneous purposes of environment-treating and energy-saving. In this work, a novel ZrHIO[math]H2O catalyst was synthesized by reacting ZrO(NO[math] with H5IO6 in aqueous nitric acid. The catalyst was found effective in degradation of rhodamine B (RhB) or methylene blue (MB) dyes at room temperature without light illumination. We used the ultraviolet–visible (UV–Vis) absorption spectra of dye solution as well as X-ray photoelectron spectroscopy (XPS) of ZrHIO[math]H2O to confirm that the dye degradation was due to its catalytic role. Importantly, the ZrHIO[math]H2O catalyst can be recycled five times without obvious activity loss and it achieved higher mineralization efficiency than the previously reported analogue in the degradation experiments.
      Citation: Functional Materials Letters
      PubDate: 2017-07-19T06:43:09Z
      DOI: 10.1142/S1793604717500552
       
  • One-step hydrothermal method to synthesize Bi/Bi2MoO6 composite for
           photoelectric catalyst
    • Authors: Qian Zhang, Zhong-kun Zhao, Zhu-rui Shen, Qiang Wei
      Abstract: Functional Materials Letters, Ahead of Print.
      Bi/Bi2MoO6 composite was prepared via a facile one-step hydrothermal reduction method and its photoelectric property was investigated. During the solvent-controlled reaction process, lysine performed as the reductant to in situ reduce Bi[math] to metallic Bi. XRD, SEM, TEM, HRTEM, XPS and FT-IR were used to characterize the morphology, structure and chemical composition of the samples obtained. Bi/Bi2MoO6 composites have special structure of Bi2MoO6 nanosheets surrounding on the surface of Bi microspheres, besides, the Bi2MoO6 nanosheets have a thickness of 10–20[math]nm. Furthermore, electrochemical test results show that the Bi/Bi2MoO6 composites can significantly enhance the separation efficiency of photogenerated charge carriers, the photocurrent of Bi/Bi2MoO6 composites prepared with 4[math]mmol lysine is about 15 times to pure Bi2MoO6.
      Citation: Functional Materials Letters
      PubDate: 2017-07-12T02:51:58Z
      DOI: 10.1142/S1793604717500539
       
  • Facile synthesis, structure and first investigation of promising lithium
           storage ability for Fe2SiS4/porous carbon composite
    • Authors: Jia-Chuang Li, Huai-Guo Xue, Sheng-Ping Guo
      Abstract: Functional Materials Letters, Ahead of Print.
      Fe2SiS4 and its composite with porous carbon from carbonization of PAN porous carbon (PC) were synthesized using one-pot method, which were characterized by XRD, SEM, TEM, XPS and Raman spectrum techniques. Their electrochemical data as anode materials for lithium-ion batteries were firstly studied. The results indicate that the Fe2SiS4 particles dispersed on the surface or in the pores of PC has the 1st capacity of 961.9[math]mAh/g, and around 400[math]mAh/g capacity can be still maintained after 50 cycles at 0.2C, much enhanced electrochemical performance than those for pure Fe2SiS4.
      Citation: Functional Materials Letters
      PubDate: 2017-07-12T02:51:58Z
      DOI: 10.1142/S1793604717500540
       
  • In situ atomic force microscope observing the effect of vinylene carbonate
           on the formation of solid-electrolyte interphase layer during the initial
           cycle
    • Authors: Lingpiao Lin, Kai Yang, Haibiao Chen, Feng Pan
      Abstract: Functional Materials Letters, Ahead of Print.
      We used in situ atomic force microscope to observe the evolution of the solid-electrolyte interphase (SEI) layer on the graphite surface during the initial lithium intercalation process. We found that 1% vinylene carbonate (VC) in the electrolyte can promote the formation of an initial SEI at a higher potential by VC reduction. VC also restrained the reduction of ethylene carbonate (EC) and as a consequence, it can affect the morphology of the SEI formed.
      Citation: Functional Materials Letters
      PubDate: 2017-07-05T07:47:04Z
      DOI: 10.1142/S1793604717500527
       
  • A novel network porous microspheric ZnS/ZnO with enhanced visible light
           photocatalytic property
    • Authors: Mingjun Bai, Xiaowen Liu
      Abstract: Functional Materials Letters, Ahead of Print.
      A novel network porous microspheric ZnS/ZnO photocatalyst had been successfully synthesized via a thermal treatment method with using ZnS as a template. The XRD diffraction result demonstrated that the material was the composite of hexagonal wurtzite ZnS and hexagonal wurtzite ZnO. The network porous microsphere was formed by ZnS/ZnO nanowalls. The photocatalytic activity of the ZnS/ZnO photocatalyst was investigated by using methyl orange (MO) under visible light irradiation. The MO was reduced by 96.93% in 120[math]min, which was much higher than that of pure ZnO and ZnS photocatalysts. The excellent photocatalytic performance was mainly attributed to the formation of novel network porous microspheric ZnS/ZnO heterojunction which was formed by nanowalls and the efficient separation of photogenerated charge carriers.
      Citation: Functional Materials Letters
      PubDate: 2017-06-23T07:06:01Z
      DOI: 10.1142/S1793604717500515
       
 
 
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