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  Subjects -> ENERGY (Total: 308 journals)
    - ELECTRICAL ENERGY (3 journals)
    - ENERGY (185 journals)
    - ENERGY: GENERAL (8 journals)
    - NUCLEAR ENERGY (31 journals)
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ENERGY (185 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: 8)
Advances in High Energy Physics     Open Access   (Followers: 20)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 28)
American Journal of Energy Research     Open Access   (Followers: 9)
Annals of Nuclear Energy     Hybrid Journal   (Followers: 8)
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 3)
Annual Review of Resource Economics     Full-text available via subscription   (Followers: 12)
Applied Nanoscience     Open Access   (Followers: 7)
Applied Solar Energy     Hybrid Journal   (Followers: 16)
Archives of Thermodynamics     Open Access   (Followers: 7)
Artificial Photosynthesis     Open Access   (Followers: 1)
Asian Bulletin of Energy Economics and Technology     Open Access   (Followers: 2)
Atomic Energy     Hybrid Journal   (Followers: 4)
Atoms for Peace: an International Journal     Hybrid Journal   (Followers: 3)
Batteries     Open Access   (Followers: 4)
Biofuel Research Journal     Open Access   (Followers: 4)
Biofuels     Hybrid Journal   (Followers: 10)
Biofuels Engineering     Open Access  
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: 41)
Canadian Water Resources Journal     Hybrid Journal   (Followers: 21)
Carbon Management     Hybrid Journal   (Followers: 6)
Catalysis for Sustainable Energy     Open Access   (Followers: 6)
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: 3)
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: 23)
Electricity Journal     Partially Free   (Followers: 1)
ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations     Open Access   (Followers: 1)
Energy     Partially Free   (Followers: 25)
Energy & Environment     Hybrid Journal   (Followers: 18)
Energy & Fuels     Full-text available via subscription   (Followers: 28)
Energy and Buildings     Hybrid Journal   (Followers: 10)
Energy and Emission Control Technologies     Open Access   (Followers: 4)
Energy and Environment Focus     Free   (Followers: 6)
Energy and Environment Research     Open Access   (Followers: 11)
Energy and Environmental Engineering     Open Access   (Followers: 6)
Energy and Power     Open Access   (Followers: 8)
Energy and Power Engineering     Open Access   (Followers: 17)
Energy Conversion and Management     Hybrid Journal   (Followers: 10)
Energy Efficiency     Hybrid Journal   (Followers: 11)
Energy Harvesting and Systems : Materials, Mechanisms, Circuits and Storage     Hybrid Journal   (Followers: 3)
Energy Law Journal     Full-text available via subscription   (Followers: 4)
Energy Materials : Materials Science and Engineering for Energy Systems     Hybrid Journal   (Followers: 19)
Energy Policy     Partially Free   (Followers: 59)
Energy Prices and Taxes     Full-text available via subscription   (Followers: 5)
Energy Procedia     Open Access   (Followers: 2)
Energy Reports     Open Access   (Followers: 4)
Energy Research & Social Science     Full-text available via subscription   (Followers: 5)
Energy Science & Engineering     Open Access   (Followers: 3)
Energy Science and Technology     Open Access   (Followers: 11)
Energy Storage Materials     Full-text available via subscription   (Followers: 1)
Energy Strategy Reviews     Partially Free   (Followers: 9)
Energy Studies Review     Open Access   (Followers: 5)
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: 17)
Environmental Progress & Sustainable Energy     Hybrid Journal   (Followers: 8)
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: 2)
Frontiers in Energy     Hybrid Journal   (Followers: 3)
Frontiers in Energy Research     Open Access   (Followers: 3)
Fuel and Energy Abstracts     Full-text available via subscription   (Followers: 5)
Functional Materials Letters     Hybrid Journal   (Followers: 1)
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: 3)
IEA Natural Gas Information     Full-text available via subscription   (Followers: 3)
IEEE Power and Energy     Full-text available via subscription   (Followers: 25)
IEEE Transactions on Energy Conversion     Hybrid Journal   (Followers: 13)
IEEE Transactions on Nuclear Science     Hybrid Journal   (Followers: 9)
IEEE Transactions on Power Systems     Hybrid Journal   (Followers: 27)
IET Power Electronics     Hybrid Journal   (Followers: 29)
Ingeniería Energética     Open Access  
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 12)
International Journal of Alternative Propulsion     Hybrid Journal   (Followers: 5)
International Journal of Ambient Energy     Hybrid Journal   (Followers: 1)
International Journal of Applied Power Engineering     Open Access   (Followers: 4)
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: 6)
International Journal of Energy and Environmental Engineering     Open Access   (Followers: 3)
International Journal of Energy and Power     Open Access   (Followers: 9)
International Journal of Energy and Statistics     Hybrid Journal   (Followers: 2)
International Journal of Energy Engineering     Open Access   (Followers: 9)
International Journal of Energy Research     Hybrid Journal   (Followers: 8)
International Journal of Energy Science     Open Access   (Followers: 1)
International Journal of Global Energy Issues     Hybrid Journal   (Followers: 8)
International Journal of Green Energy     Hybrid Journal   (Followers: 9)
International Journal of Hydrogen Energy     Partially Free   (Followers: 14)
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: 7)
International Journal of Power and Energy Conversion     Hybrid Journal   (Followers: 3)
International Journal of Smart Grid and Green Communications     Hybrid Journal  
International Journal of Sustainable Energy     Hybrid Journal   (Followers: 12)
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)
Journal of Alternate Energy Sources & Technologies     Full-text available via subscription  
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  
Journal of Energy & Natural Resources Law     Hybrid Journal   (Followers: 2)
Journal of Energy Chemistry     Full-text available via subscription   (Followers: 2)
Journal of Energy in Southern Africa     Open Access   (Followers: 2)
Journal of Energy Storage     Full-text available via subscription  
Journal of Energy Technologies and Policy     Open Access   (Followers: 5)
Journal of Energy, Environment & Carbon Credits     Full-text available via subscription   (Followers: 2)
Journal of Fusion Energy     Hybrid Journal   (Followers: 3)
Journal of International Energy Policy     Open Access   (Followers: 3)
Journal of Modern Power Systems and Clean Energy     Open Access   (Followers: 8)
Journal of Nano Energy and Power Research     Full-text available via subscription   (Followers: 4)
Journal of Nuclear Energy Science & Power Generation Technology     Hybrid Journal   (Followers: 3)
Journal of Ocean Engineering and Marine Energy     Hybrid Journal   (Followers: 2)
Journal of Physical Chemistry C     Full-text available via subscription   (Followers: 30)
Journal of Power Electronics & Power Systems     Full-text available via subscription   (Followers: 9)
Journal of Radiological Protection     Full-text available via subscription   (Followers: 4)
Journal of Renewable Energy     Open Access   (Followers: 7)
Journal of Semiconductors     Full-text available via subscription   (Followers: 3)
Journal of Solar Energy     Open Access   (Followers: 9)
Journal of Solar Energy Engineering     Full-text available via subscription   (Followers: 18)
Journal of Sustainable Bioenergy Systems     Full-text available via subscription   (Followers: 1)
Journal of Sustainable Energy Engineering     Full-text available via subscription   (Followers: 1)
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: 6)
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: 13)
Nuclear Law Bulletin     Full-text available via subscription   (Followers: 2)
Nuclear Materials and Energy     Open Access   (Followers: 1)
Oil and Gas Journal     Full-text available via subscription   (Followers: 12)
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: 1)
Protection and Control of Modern Power Systems     Open Access  
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: 21)
Solar Energy Materials and Solar Cells     Hybrid Journal   (Followers: 35)
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: 8)
Surface Science Reports     Full-text available via subscription   (Followers: 13)
Sustainable Energy     Open Access   (Followers: 2)
Sustainable Energy Technologies and Assessments     Full-text available via subscription  
Sustainable Energy, Grids and Networks     Hybrid Journal   (Followers: 1)
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: 11)
Water International     Hybrid Journal   (Followers: 14)
Wiley Interdisciplinary Reviews : Energy and Environment     Hybrid Journal   (Followers: 5)
Wind Energy     Hybrid Journal   (Followers: 4)
Wind Engineering     Hybrid Journal   (Followers: 3)

       | Last

Journal Cover Functional Materials Letters
  [SJR: 0.392]   [H-I: 19]   [1 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]
  • Pulsed magnetic field-induced changes in the meso- and nanostructure of
           Co[math]Ni[math]Ga[math] martensite
    • Abstract: Functional Materials Letters, Ahead of Print.
      A near single-variant martensitic state of Co[math]Ni[math]Ga[math] alloy was induced by a static axial stress of 66[math]MPa. Upon application of a magnetic field pulse, the single-variant state of stressed specimen was transformed into a hierarchic martensitic structure at micron, submicron and nanometer scales. The martensitic structures, which were induced during the magnetic field pulse, did not disappear after the field was switched off. This stability of the field-induced martensitic structure is attributed to the appearance of additional twinning systems with hardly mobile twin boundaries.
      Citation: Functional Materials Letters
      PubDate: 2017-05-24T06:30:47Z
      DOI: 10.1142/S1793604717500448
       
  • Environment-friendly, flame retardant thermoplastic
           elastomer–magnesium hydroxide composites
    • Abstract: Functional Materials Letters, Ahead of Print.
      Halogen-free and environment-friendly magnesium hydroxide (Mg(OH)2) was synthesized to enhance the flame retardant properties of thermoplastic elastomer (TPE). When the Mg(OH)2 content was optimized to 35[math]wt.%, the TPE–Mg(OH)2 composites exhibited the best flame retardant properties. The results showed that there was a delay of ignition time of the samples containing Mg(OH)2; compared with the samples without Mg(OH)2, the heat release rate and total heat release decrease by 31.4% and 35.6%, while total smoke production and mass loss rate reduce by 56% and 34.2%, respectively. This work opens a door to manufacture fire-resistant polymer-based composites with environmental-friendly flame retardant additives by controllable crystallization and chemical strategies.
      Citation: Functional Materials Letters
      PubDate: 2017-05-24T06:30:47Z
      DOI: 10.1142/S1793604717500424
       
  • A review on structural characteristics, lithium ion diffusion behavior and
           temperature dependence of conductivity in perovskite-type solid
           electrolyte Li[math]La[math]TiO3
    • Abstract: Functional Materials Letters, Ahead of Print.
      Due to various and indefinite Li-ion distributions within the cuboctahedron surrounded by eight TiO6 and local subtle distortions, perovskite-type solid electrolyte Li[math]La[math]TiO3 (LLTO) is suitable to be used as a model system for studying the structure–conductivity relationship. This review is focused on structural characteristics, Li-ion diffusion behavior and conductivity in LLTO. Li-ion concentration, cooling rate of heat treatment and heating temperature are shown to be three main factors influencing the space group structure of LLTO, involving the distributions of Li, La ions and vacancies as well as the distortion of TiO6 octahedron. In rhombohedral and some orthorhombic phases, Li ions partially occupy O4 windows of cuboctahedrons, whose diffusion could be described by the bond percolation model, whereas in other phases with Li ions inside the cuboctahedrons, the site percolation model is applicable to Li-ion conduction. Li-ion conductivity versus temperature curve exhibits non-Arrhenius behavior, which is divided into three sections with different activation energies, although its first-derivative is continuous. The activation energy is correlated closely with the tilting angle of TiO6 octahedron, both of which decrease with the increase of temperature. Experimental studies and theoretical results are discussed in parallel to provide insight into the detailed structure-conductivity relationship.
      Citation: Functional Materials Letters
      PubDate: 2017-05-16T07:14:55Z
      DOI: 10.1142/S179360471730002X
       
  • A fast and mild in-situ oxidization method to fabricate the
           nickel–cobalt layered double hydroxides on Ni foam as the
           high-performance electrode materials
    • Abstract: Functional Materials Letters, Ahead of Print.
      In this work, a fast and mild in-situ oxidization hydrothermal method was developed to fabricate the nickel–cobalt layered double hydroxides (Ni–Co LDHs) on Ni foam. The Ni–Co LDHs with the nanoarrays and nanopetals structures were synthesized by in situ oxidizing Ni foam in a mixed solvent of cobalt chloride hexahydrate (CoCl[math]H2O) and hydrogen peroxide (H2O2) at 90[math]C for 3[math]h. The electrochemical performance tests indicate the Ni–Co LDHs electrodes have a high areal capacitance value about 17.3[math]F/cm2 at 5.0[math]mA/cm2. After 1000 cycles at 50[math]mA/cm2, the as-prepared electrodes have the high capacitance retention of 83%. Thus, the binder-free Ni–Co LDHs with high electrochemical performance are the promising electrode materials for advanced electrochemical storage energy devices including flexible power sources and supercapacitors in modern electronic systems.
      Citation: Functional Materials Letters
      PubDate: 2017-05-16T07:14:55Z
      DOI: 10.1142/S1793604717500412
       
  • Tuning the electrical properties of polyaniline by copolymerization with
           o-bromoaniline
    • Abstract: Functional Materials Letters, Ahead of Print.
      Polyaniline, poly(o-bromoaniline) and poly(aniline-co-o-bromoaniline)s have been prepared by chemical oxidative polymerization methods. A series of poly(aniline-co-o-bromoaniline) derivatives has been prepared by the chemical oxidative copolymerization of aniline with different mole ratio of o-bromoaniline by varying the feed ratios of the monomers with the introduction of o-bromoaniline units along the polymer backbone. The morphology of each poly(aniline-co-o-bromoaniline) derivative is observed as a porous network of aggregated nanoparticles with each nanoparticle having smaller nanoflake structures. Room temperature electrical conductivity studies reveal that polyaniline has a conductivity value of the order of 10[math][math]S/cm. However, the corresponding poly(aniline-co-o-bromoaniline), with 10% o-bromoaniline content, shows a fivefold increase of the electrical conductivity relative to the polyaniline homopolymer. The different polymer derivatives were characterized by 1H NMR spectrometry, Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) methods, AC conductivity and dielectric permittivity measurements.
      Citation: Functional Materials Letters
      PubDate: 2017-05-12T06:11:23Z
      DOI: 10.1142/S1793604717500394
       
  • Preparation of polyaniline modified BiOBr with enhanced photocatalytic
           activities
    • Abstract: Functional Materials Letters, Ahead of Print.
      The polyaniline/bismuth oxybromide (PANI/BiOBr) hybrids materials have been synthesized hydrothermally in the presence of PANI. The PANI/BiOBr hybrids materials were confirmed by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy and ultraviolet–visible diffuse reflectance spectroscopies. Among the hybrid photocatalysts, PANI/BiOBr-0.2 showed the highest photocatalytic properties for the degradation of rhodamine B (RhB), and the increased photocatalytic properties could be due to photosensitization and the inhibited electron–hole recombination.
      Citation: Functional Materials Letters
      PubDate: 2017-05-12T06:11:22Z
      DOI: 10.1142/S1793604717500400
       
  • Novel preparation of multiwalled carbon nanotubes/bacterial cellulose
           nanocomposite for phthalocyanine immobilization
    • Abstract: Functional Materials Letters, Ahead of Print.
      Electrically conducting multiwalled carbon nanotubes (MWCNT) incorporated bacterial cellulose (BC) nanocomposite (MWCNT/BC) was prepared by briefly sonicating MWCNT-DMF/H2O dispersion immersed with BC, no addition of surfactant was required during the process. The conductivity of MWCNT/BC, as measured by a four-probe instrument, was up to 0.32 S[math]cm[math]. Tetraamino cobalt (II) phthalocyanine (CoPc) catalyst was decorated onto the surface of pre-oxidized MWCNT/BC with covalent bonding. The resulting BC-based functional nanomaterial, CoPc decorated, MWCNT incorporated BC (CoPc@MWCNT/BC), is able to efficiently decolorize dye wastewater. The catalytic oxidation activity of CoPc was greatly improved with the incorporation of MWCNT.
      Citation: Functional Materials Letters
      PubDate: 2017-04-25T10:15:28Z
      DOI: 10.1142/S1793604717500382
       
  • Transition of magnetism in graphene coated with metal nanoparticles
    • Abstract: Functional Materials Letters, Ahead of Print.
      The unique two-dimensional structure and very high surface area of graphene results in amazing properties and makes it an ideal substrate for the chemical adsorption of many types of metal nanoparticles (NPs). Here, we demonstrate a novel approach for synthesizing multi-functional graphene-magnetic nanoparticles (GNPs) hybrids. The hybrids exhibit a combination of features, including excellent processability, superparamagnetism, electrical conductivity and high chemical reactivity. The synthesis of graphene by Cu or Ni reduction of exfoliated graphene oxide results in the removal of oxygen functionalities of the graphene oxide. The process is scalable, green and efficiently enables the controllable production of GNPs. The GNPs have great potential for a variety of applications, including as materials for magnetic resonance imaging, microwave absorption and electromagnetic interference shielding.
      Citation: Functional Materials Letters
      PubDate: 2017-04-19T09:36:00Z
      DOI: 10.1142/S1793604717500370
       
  • Microstructure and optical properties of TiO2
           nanocrystallites–CaTiO3:Pr[math] hybrid thick films
    • Abstract: Functional Materials Letters, Ahead of Print.
      Long afterglow CaTiO3:Pr[math] ceramic powders were integrated with hydrothermal TiO2 nanocrystallites via “doctor-blade” and TiO2-CaTiO3:Pr[math] hybrid thick films on FTO substrate were fabricated. Effects of the Pr[math] doping level (0.06%, 0.3%) and the CaTiO3:Pr[math]/TiO2 weight ratio (0.23, 0.92) on the crystallinity, morphologies, optical transmittance and photoluminescence (PL) properties were investigated. Results showed that the crystallinity of the hybrid films originated from both TiO2 nanocrystallites and CaTiO3:Pr[math] ceramic particles, affected little by the integrating process. The film surface became denser and coarser due to the incorporation of CaTiO3:Pr[math] micron/submicron particles, and the film thickness varied little ([math][math]2.2[math][math]m). The optical transmittance of the hybrid film decreased sharply ([math][math]20% for 0.92 incorporation level) due to the scattering effects of the CaTiO3:Pr[math] micron/submicron particles to the incident light. All the hybrid films exhibited strong PL at [math][math]613[math]nm when excited with 332–335[math]nm, and the film with the Ca[math]TiO3:Pr[math]/TiO2 weight ratio of 0.23 showed the highest emission. In addition, the film exhibited a photoresponce to a broad ultraviolet excitation ranging from 288–369[math]nm and a long emission decay time up to 30[math]min at 613[math]nm, possible for use in the ultraviolet detectors, solar cells and other photoelectrical devices.
      Citation: Functional Materials Letters
      PubDate: 2017-04-17T11:03:22Z
      DOI: 10.1142/S1793604717500333
       
  • Synthesis, microstructure and magnetic properties of Fe2CoAl nanofibers
    • Abstract: Functional Materials Letters, Ahead of Print.
      In this work, Fe2CoAl Heusler alloy nanofibers were first synthesized via an electrospinning method. It was found that the crystal structure, fiber diameter and magnetic properties of the samples varied with the metal salt concentration in the precursor solution. Magnetic measurement reveals that the obtained Fe2CoAl nanofibers exhibit ferromagnetic with a high Curie temperature and large coercivity. The saturation magnetic moment of the Fe2CoAl nanofibers at 5[math]K is estimated to be 4.5–5.1[math][math]. The Fe2CoAl nanofibers synthesized using the low-cost electrospinning method in our work are magnetically superior and economically feasible for technological applications.
      Citation: Functional Materials Letters
      PubDate: 2017-04-17T11:03:19Z
      DOI: 10.1142/S1793604717500357
       
  • Reduced graphene oxide encapsulated Cu2O with controlled crystallographic
           facets for enhanced visible-light photocatalytic degradation
    • Abstract: Functional Materials Letters, Ahead of Print.
      The Cu2O/reduced graphene oxide (Cu2O/rGO) composites with effective crystallographic facet controlling of Cu2O crystals were fabricated through a simple one-step wet chemistry method. The crystallographic facet-dependent photocatalytic performance of Cu2O was confirmed, favoring the cuboctahedral Cu2O with {100} and {111} facets and a better photocatalytic activity when compared to cubic and octahedral ones. This was attributed to the slight difference of surface energy between {100} and {111} facets which served as a driving force to promote the separation of photogenerated electron–hole pairs. Moreover, the introduction of two-dimensional rGO sheets could accelerate the transfer of photogenerated electrons from Cu2O to rGO, which further promoted the separation of photogenerated electron–hole pairs and the degradation of methyl orange (MO) under visible-light irradiation. The cuboctahedral Cu2O/rGO composite exhibited a superb photocatalytic performance with the degradation percentage of MO about 97.6% after one periodic photocatalysis due to the synergistic effect of cuboctahedral Cu2O and rGO sheets, foreboding its potential application as photocatalyst.
      Citation: Functional Materials Letters
      PubDate: 2017-04-17T11:03:16Z
      DOI: 10.1142/S1793604717500345
       
  • Photovoltaic effect of ferroelectric Pb(Zr[math],Ti[math])O3 deposited on
           SrTiO3 buffered [math]-GaAs by laser molecular beam epitaxy
    • Abstract: Functional Materials Letters, Ahead of Print.
      Ferroelectric Pb(Zr[math],Ti[math]O3(PZT) thin film was grown on [math]-type GaAs (001) substrate with SrTiO3 (STO) buffer layer by laser molecular beam epitaxy (L-MBE). The epitaxial process of the STO was in situ monitored by reflection high-energy electron diffraction (RHEED). The crystallographical growth orientation relationship was revealed to be (002) [math] PZT//(002) [math] STO//(001) [math] GaAs by RHEED and X-ray diffraction (XRD). It was found that a small lattice mismatch between PZT and GaAs with a 45[math] in-plane rotation relationship can be formed by inserting of a buffer layer STO. Besides, the enhanced electrical properties of the heterostructure were obtained with the short-circuit photocurrent increased to 52[math]mA/cm2 and the better power conversation efficiency increased by 20% under AM1.5[math]G (100[math]mW/cm[math] illumination. The work could provide a way for the application of this kind of heterostructure with high photocurrent response in optoelectronic thin film devices.
      Citation: Functional Materials Letters
      PubDate: 2017-04-17T11:03:14Z
      DOI: 10.1142/S1793604717500369
       
  • Polymorph growth of inorganic functional materials
    • Abstract: Functional Materials Letters, Ahead of Print.
      Continuous development of liquid/solid interface towards the liquid side promotes crystal growth under the chemical reaction among crystal constituents. Here, factors that determine inorganic functional materials are analyzed by establishing the chemical reaction equations at liquid/solid interface. The linear growth velocity along the [uvw] direction is directly determined by the chemical bonds formed in chemical reaction at the growing interface. In the present chemical bonding growth model, both thermodynamic and kinetic controls are integrated, which can also be classified in particular materials growth system. Taking Cu2O as an example, we demonstrate that the critical control factor is the bonding mode in linking Cu2O growth units controlled by chemical reaction, and various bonding modes promote the polymorph growth of inorganic functional materials.
      Citation: Functional Materials Letters
      PubDate: 2017-04-12T06:42:54Z
      DOI: 10.1142/S1793604717410016
       
  • Two-dimensional hexagonal symmetry diffraction pattern by SiO2 photonic
           structures fabricated by hot embossing
    • Abstract: Functional Materials Letters, Ahead of Print.
      Using synthesized sol–gel nanoimprint resist, large-area, ordered SiO2 cylindrical and stripe photonic nanostructures with constant aspect ratio have been fabricated by a single-step soft stamp hot embossing nanoimprint. Different from the traditional hot embossing nanoimprint technique, in our imprint process, the external force applied to the soft stamp is provided just by using our hand. Since the stress can be well released, the stamp can be easily released after the hot stage cooling down. So the optical window (K9 glass) substrates with imprinted two-dimensional SiO2 cylindrical photonic nanostructures show good light diffraction property. Also, our experiment demonstrates that with the imprinted sample annealing at 200[math]C, the density of SiO2 will be increased and the diffraction efficiency can be further enhanced. In addition, the light splitting characteristic can still keep good for a larger (6 inch) substrate, which has a certain radian. This illustrates that this nanoimprint method can be compatible with the fluctuation of the imprinted substrates. Furthermore, as the distance between two adjacent feature nanostructures is in sub-micro scale, hexagonal symmetry diffraction pattern by the cylindrical photonic structures was realized at normal incidence of monochromatic laser ([math]532[math]nm). The diffraction efficiency of first order is about 11.2%. Morever, the diffraction pattern and the intensity of the first diffraction order can be modulated just by changing the incident angle of the input laser.
      Citation: Functional Materials Letters
      PubDate: 2017-04-12T06:42:54Z
      DOI: 10.1142/S179360471750031X
       
  • Synthesis of rGO/PS compound with sandwich structure on Ni foam as
           binder-free electrode for supercapacitor
    • Abstract: Functional Materials Letters, Ahead of Print.
      Here, we demonstrate the design of a binder-free reduced graphene oxide (rGO) and polystyrene colloidal microsphere (PS) compound with rGO/PS/rGO sandwich structure and application for supercapacitors electrode. rGO and PS are alternately deposited into 3D Ni foam by a simple layer-by-layer assembly based on dip-coating. The interlayer space of rGO film expanded by PS microsphere and 3D structure of compound electrode can effectively shorten diffusion pathways of ions and accelerate the transport of ions into graphene sheets. The resulting rGO/PS compound electrode exhibits a high specific capacitance with 164.7[math]F g[math], and outstanding rate capability. It is found that the specific capacitance is dependent on the number of rGO film layers in rGO/PS compound electrode.
      Citation: Functional Materials Letters
      PubDate: 2017-04-12T06:42:53Z
      DOI: 10.1142/S1793604717500321
       
  • Template-assisted synthesis of 3D ordered macroporous structured CuO as
           catalyst for ammonium perchlorate
    • Abstract: Functional Materials Letters, Ahead of Print.
      Three-dimensionally ordered macroporous (3DOM) CuO is prepared by colloidal crystal templated method. The obtained 3DOM structure with about 230[math]nm pore diameter is composed of small CuO windows. The special structured CuO is used as a catalyst for thermal decomposition of ammonium perchlorate (AP) and its catalytic activity is measured by simultaneous thermogravimetry-differential scanning calorimetry (TG-DSC) techniques. Test results show that thermal decomposition performance is significantly improved after adding 2[math]wt.% 3DOM CuO.
      Citation: Functional Materials Letters
      PubDate: 2017-03-22T03:18:53Z
      DOI: 10.1142/S1793604717500308
       
  • Ag/C:F Antibacterial and hydrophobic nanocomposite coatings
    • Abstract: Functional Materials Letters, Ahead of Print.
      Silver-based nanomaterials that exhibit antibacterial character are intensively studied as they represent promising weapon against multi-drug resistant bacteria. Equally important class of materials represent coatings that have highly water repellent nature. Such materials may be used for fabrication of anti-fogging or self-cleaning surfaces. The aim of this study is to combine both of these valuable material characteristics. Antibacterial and highly hydrophobic Ag/C:F nanocomposite films were fabricated by means of gas aggregation source of Ag nanoparticles and sputter deposition of C:F matrix. The nanocomposite coatings had three-layer structure C:F base layer/Ag nanoparticles/C:F top layer. It is shown that the increasing number of Ag nanoparticles in produced coatings leads not only in enhancement of their antibacterial activity, but also causes substantial increase of their hydrophobicity. Under optimized conditions, the coatings are super-hydrophobic with water contact angle equal to 165[math] and are capable to induce 6-log reduction of bacteria presented in solution within 4[math]h.
      Citation: Functional Materials Letters
      PubDate: 2017-03-21T06:52:11Z
      DOI: 10.1142/S1793604717500291
       
  • Lanthanide ions-doped SrMoO4 microcrystals: Synthesis, characterizations,
           luminescence, and detection of Fe[math] ions
    • Abstract: Functional Materials Letters, Ahead of Print.
      A facile and green synthetic method for the synthesis of a Ln[math](Eu, Tb)-doped SrMoO4 (SMO) microcrystals were developed using an environment-friendly low temperature hydrothermal method assisting with phenol formaldehyde resin (PFr). The microcrystals show narrow distribution and uniform particle size, and strong red and green emissions from Eu[math] and Tb[math] ions, and it is selectively quenched upon addition Fe[math] ions, thus making the microcrystals as a potential Fe[math] ions sensing material, and the detection limit is nearly micromole level.
      Citation: Functional Materials Letters
      PubDate: 2017-03-21T06:52:10Z
      DOI: 10.1142/S1793604717500278
       
  • Facile synthesis of novel Roe-like TiO2 hollow nanospheres with mesoporous
           cavity for improved photocatalytic activity
    • Abstract: Functional Materials Letters, Ahead of Print.
      A facile approach was developed to synthesize novel Roe-like TiO2 hollow nanospheres via a template-assisted self-assembly process. These TiO2 nanospheres possessing mesoporous cavity manifest significantly improved photocatalytic activity owing to the synergistic effects of increased charge separation, more efficient use of the light and specific surface area.
      Citation: Functional Materials Letters
      PubDate: 2017-03-21T06:52:10Z
      DOI: 10.1142/S179360471750028X
       
  • Investigation of the effect of temperature on aging behavior of Fe-doped
           lead zirconate titanate
    • Abstract: Functional Materials Letters, Ahead of Print.
      The aging degradation behavior of Fe-doped Lead zirconate titanate (PZT) subjected to different heat-treated temperatures was investigated over 1000[math]h. The aging degradation in the piezoelectric properties of PZT was indicated by the decrease in piezoelectric charge coefficient, electric field-induced strain and remanent polarization. It was found that the aging degradation became more pronounced at temperature above 50% of the PZT’s Curie temperature. A mathematical model based on the linear logarithmic stretched exponential function was applied to explain the aging behavior. A qualitative aging model based on polar macrodomain switchability was proposed.
      Citation: Functional Materials Letters
      PubDate: 2017-03-07T08:49:11Z
      DOI: 10.1142/S1793604717500266
       
  • The research progress of polyhedral oligomeric silsesquioxane (POSS)
           applied to electrical energy storage elements
    • Abstract: Functional Materials Letters, Ahead of Print.
      Polyhedral oligomeric silsesquioxane (POSS) is a kind of organic–inorganic hybrid nanoparticle. This paper introduces the research progress of different kind of POSS organic–inorganic hybrid nanoparticles applied to lithium-ion batteries, fuel batteries, and supercapacitors by researchers on mechanical properties, thermal properties and electrochemistry properties. The results showed that the ionic conductivity of POSS/Li-ion solid polymer electrolyte reached 3.26[math][math][math]10[math][math]S/cm and mechanical properties were commendable. The proton conductivity of POSS hybrid proton exchange membranes came to the level of 6.46[math][math][math]10[math][math]S/cm and the mechanical strength was 18[math]MPa with less content of POSS. With the inorganic core of POSS, smaller and more uniform multi-pore electrode materials offer a new idea on the fabrication of supercapacitor electrode materials.
      Citation: Functional Materials Letters
      PubDate: 2017-02-22T08:40:11Z
      DOI: 10.1142/S1793604717300018
       
  • Core–shell Si/Cu nanocomposites synthesized by self-limiting surface
           reaction as anodes for lithium ion batteries
    • Abstract: Functional Materials Letters, Ahead of Print.
      Core–shell Si/Cu nanocomposites were synthesized via a flexible self-limiting surface reaction without extra reductant for the first time. The nano Si was uniformly coated with Cu nanoparticles with a diameter of 5–10[math]nm, which can enhance the electronic conductivity of the nanocomposites and buffer the huge volume change during charge/discharge owing to its high ductility. Benefited from the unique structure, the Si/Cu nanocomposites exhibited a good electrochemical performance as anodes for lithium ion batteries, which exhibited a capacity retention of 656[math]mAh/g after 50 cycles and a coulombic efficiency of more than 99%.
      Citation: Functional Materials Letters
      PubDate: 2017-02-17T08:01:53Z
      DOI: 10.1142/S1793604717500254
       
  • Regulations of aging time on optical properties of nano-crystalline ZnO
           thin films fabricated by sol–gel method
    • Abstract: Functional Materials Letters, Ahead of Print.
      Nano-crystalline Zinc oxide (ZnO) thin films on glass substrates have been fabricated by sol–gel method for different aging times. The thermal curve of the dried gel was examined and it was found that evaporation of solvent and the decomposition of the organics have completed before 250[math]C. X-ray diffraction patterns and Atomic Force Microscope images of samples only have a small difference of microstructure. The transmittance spectra revealed high transmittance in visible region. The optical band gap of the samples remined stable (3.28[math]eV). Also, the Urbach energy was calculated to explain the defect concentration. The Photoluminescence spectra in ultraviolet and visible regions were studied, and the decreased intensity of peaks at 387[math]nm and the increased emissions in visible range were found. The results showed that excessive aging time can cause degeneration of optical properties of thin films.
      Citation: Functional Materials Letters
      PubDate: 2017-02-17T08:01:49Z
      DOI: 10.1142/S1793604717500242
       
  • Hydrogen storage in Beryllium decorated graphene with double vacancy and
           porphyrin defect — A first principles study
    • Abstract: Functional Materials Letters, Ahead of Print.
      Beryllium (Be)-decorated graphene with 585 double carbon vacancy defect and nitrogen-doped porphyrin defect are investigated for hydrogen storage applications using the first principle calculation based on density functional theory. It is found that the Be atom disperses well in the defective sites of graphene and prevents clustering. For the case of Be-decorated 585 double vacancy graphene, only two H2 molecules are adsorbed via Kubas interaction with the stretched H–H bond length of 0.8 Å. In Be-decorated porphyrin defect graphene system, four H2 molecules are molecularly chemisorbed with the H–H bond length of 0.77 Å. The chemisorptions are due to the hybridization between Be-p orbital and the H-[math] orbital. The average binding energy of H2 molecule is found to be 0.43[math]eV/H2 which lies within the required range that can permit recycling of H2 molecules under ambient conditions.
      Citation: Functional Materials Letters
      PubDate: 2017-02-10T06:35:59Z
      DOI: 10.1142/S1793604717500230
       
  • Improving photovoltaic performance of perovskite solar cells: The
           interfacial modification role of aluminum chloride and ammonia on ZnO
           nanorods
    • Authors: Zhaosong Li, Jun Zhang, Yang Xu, Mengni Xue, Hanbin Wang, Jinxia Duan, Hao Wang
      Abstract: Functional Materials Letters, Ahead of Print.
      ZnO nanorods (ZnO NRs) as electron transport layer (ETL) in organometal halide perovskite solar cells (PSCs) had been prepared because of ZnO exhibiting excellent electron mobility and light transmission performance. The ZnO NRs were modified with a simple solvothermal method using aluminum chloride (AlCl3) and ammonia (NH[math]H2O) as precursor solution, the primary advantage of this approach was low temperature, simple process. The concentration of the precursor solution was further investigated, and a power conversion efficiency (PCE) of 12.1% was achieved.
      Citation: Functional Materials Letters
      PubDate: 2017-01-26T03:05:13Z
      DOI: 10.1142/S1793604717500175
       
  • Xylene-sensing of Fe2(MoO4)3 nanoplates prepared via a hydrothermal method
    • Abstract: Functional Materials Letters, Ahead of Print.
      Fe2(MoO4)3 nanoplates were prepared via a simple hydrothermal process. The average crystalline size of these nanoplates is 85.8[math]nm. The sensor based on Fe2(MoO4)3 shows a high gas sensing performance to xylene. The response of Fe2(MoO4)3 sensor is 25.9–100[math]ppm xylene at optimum operating temperature of 340[math]C. The response and recovery times to 100[math]ppm xylene are 4 and 10[math]s, respectively. Furthermore, the Fe2(MoO4)3 sensor exhibits remarkable selectivity detection of xylene gas with negligible responses to toluene and benzene. Therefore, the Fe2(MoO4)3 is a promising material for the detection of xylene gas sensors.
      Citation: Functional Materials Letters
      PubDate: 2017-01-23T07:52:57Z
      DOI: 10.1142/S1793604717500229
       
  • Fast growth of amorphous Si nanowires by direct current arc plasma jet
           chemical vapor deposition
    • Authors: Yongheng Wu, Mingji Li, Cuiping Li, Xiaoguo Wu, Baohe Yang, Hongji Li
      Abstract: Functional Materials Letters, Ahead of Print.
      Silicon (Si) nanowires were synthesized by direct current arc plasma jet chemical vapor deposition. It was found that growth temperature and growth time played important roles in the morphologies of the Si nanowires. The possible formation mechanism of Si nanowire was also proposed according to the corresponding results. In addition, the Ni particles are dispersed on the Si substrate with the help of alkaline etching, which enables the lateral growth of Si nanowires on a Si substrate. This offers a simple and practical way of synthesizing and positioning the Si nanowires on a substrate.
      Citation: Functional Materials Letters
      PubDate: 2017-01-10T08:23:11Z
      DOI: 10.1142/S1793604717500217
       
 
 
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