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  Subjects -> MATHEMATICS (Total: 879 journals)
    - APPLIED MATHEMATICS (71 journals)
    - GEOMETRY AND TOPOLOGY (19 journals)
    - MATHEMATICS (651 journals)
    - MATHEMATICS (GENERAL) (42 journals)
    - NUMERICAL ANALYSIS (19 journals)
    - PROBABILITIES AND MATH STATISTICS (77 journals)

MATHEMATICS (651 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 538 Journals sorted alphabetically
Abakós     Open Access   (Followers: 3)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 2)
Academic Voices : A Multidisciplinary Journal     Open Access   (Followers: 2)
Accounting Perspectives     Full-text available via subscription   (Followers: 8)
ACM Transactions on Algorithms (TALG)     Hybrid Journal   (Followers: 16)
ACM Transactions on Computational Logic (TOCL)     Hybrid Journal   (Followers: 4)
ACM Transactions on Mathematical Software (TOMS)     Hybrid Journal   (Followers: 6)
ACS Applied Materials & Interfaces     Full-text available via subscription   (Followers: 21)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1)
Acta Mathematica     Hybrid Journal   (Followers: 11)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 5)
Acta Mathematica Vietnamica     Hybrid Journal  
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal  
Advanced Science Letters     Full-text available via subscription   (Followers: 7)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 3)
Advances in Calculus of Variations     Hybrid Journal   (Followers: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5)
Advances in Complex Systems     Hybrid Journal   (Followers: 7)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 15)
Advances in Decision Sciences     Open Access   (Followers: 4)
Advances in Difference Equations     Open Access   (Followers: 1)
Advances in Fixed Point Theory     Open Access   (Followers: 5)
Advances in Geosciences (ADGEO)     Open Access   (Followers: 10)
Advances in Linear Algebra & Matrix Theory     Open Access   (Followers: 1)
Advances in Materials Sciences     Open Access   (Followers: 16)
Advances in Mathematical Physics     Open Access   (Followers: 5)
Advances in Mathematics     Full-text available via subscription   (Followers: 10)
Advances in Numerical Analysis     Open Access   (Followers: 4)
Advances in Operations Research     Open Access   (Followers: 11)
Advances in Porous Media     Full-text available via subscription   (Followers: 4)
Advances in Pure and Applied Mathematics     Hybrid Journal   (Followers: 5)
Advances in Pure Mathematics     Open Access   (Followers: 4)
Advances in Science and Research (ASR)     Open Access   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 5)
African Journal of Mathematics and Computer Science Research     Open Access   (Followers: 4)
Afrika Matematika     Hybrid Journal   (Followers: 1)
Air, Soil & Water Research     Open Access   (Followers: 7)
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 3)
Algebra Colloquium     Hybrid Journal   (Followers: 4)
Algebra Universalis     Hybrid Journal   (Followers: 2)
Algorithmic Operations Research     Full-text available via subscription   (Followers: 5)
Algorithms     Open Access   (Followers: 10)
Algorithms Research     Open Access   (Followers: 1)
American Journal of Biostatistics     Open Access   (Followers: 9)
American Journal of Computational and Applied Mathematics     Open Access   (Followers: 3)
American Journal of Mathematical Analysis     Open Access  
American Journal of Mathematics     Full-text available via subscription   (Followers: 7)
American Journal of Operations Research     Open Access   (Followers: 5)
American Mathematical Monthly     Full-text available via subscription   (Followers: 6)
An International Journal of Optimization and Control: Theories & Applications     Open Access   (Followers: 7)
Analele Universitatii Ovidius Constanta - Seria Matematica     Open Access   (Followers: 1)
Analysis     Hybrid Journal   (Followers: 2)
Analysis and Applications     Hybrid Journal   (Followers: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 3)
Analysis Mathematica     Full-text available via subscription  
Annales Mathematicae Silesianae     Open Access  
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annales UMCS, Mathematica     Open Access   (Followers: 1)
Annales Universitatis Paedagogicae Cracoviensis. Studia Mathematica     Open Access  
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1)
Annals of Combinatorics     Hybrid Journal   (Followers: 3)
Annals of Data Science     Hybrid Journal   (Followers: 8)
Annals of Discrete Mathematics     Full-text available via subscription   (Followers: 6)
Annals of Mathematics     Full-text available via subscription  
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 6)
Annals of Pure and Applied Logic     Open Access   (Followers: 2)
Annals of the Alexandru Ioan Cuza University - Mathematics     Open Access  
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1)
Annals of West University of Timisoara - Mathematics     Open Access  
Annuaire du Collège de France     Open Access   (Followers: 5)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2)
Applications of Mathematics     Hybrid Journal   (Followers: 1)
Applied Categorical Structures     Hybrid Journal   (Followers: 2)
Applied Computational Intelligence and Soft Computing     Open Access   (Followers: 12)
Applied Mathematics     Open Access   (Followers: 3)
Applied Mathematics     Open Access   (Followers: 4)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 4)
Applied Mathematics - A Journal of Chinese Universities     Hybrid Journal  
Applied Mathematics Letters     Full-text available via subscription   (Followers: 1)
Applied Mathematics Research eXpress     Hybrid Journal   (Followers: 1)
Applied Network Science     Open Access  
Applied Numerical Mathematics     Hybrid Journal   (Followers: 5)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4)
Arab Journal of Mathematical Sciences     Open Access   (Followers: 2)
Arabian Journal of Mathematics     Open Access   (Followers: 2)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 1)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 4)
Archive of Numerical Software     Open Access  
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 4)
Arkiv för Matematik     Hybrid Journal   (Followers: 1)
Arnold Mathematical Journal     Hybrid Journal   (Followers: 1)
Artificial Satellites : The Journal of Space Research Centre of Polish Academy of Sciences     Open Access   (Followers: 19)
Asia-Pacific Journal of Operational Research     Hybrid Journal   (Followers: 3)
Asian Journal of Algebra     Open Access   (Followers: 1)
Asian Journal of Current Engineering & Maths     Open Access  
Asian-European Journal of Mathematics     Hybrid Journal   (Followers: 2)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 7)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 2)
Australian Senior Mathematics Journal     Full-text available via subscription   (Followers: 1)
Automatic Documentation and Mathematical Linguistics     Hybrid Journal   (Followers: 5)
Axioms     Open Access  
Baltic International Yearbook of Cognition, Logic and Communication     Open Access  
Basin Research     Hybrid Journal   (Followers: 4)
BIBECHANA     Open Access  
BIT Numerical Mathematics     Hybrid Journal  
BoEM - Boletim online de Educação Matemática     Open Access  
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletín de la Sociedad Matemática Mexicana     Hybrid Journal  
Bollettino dell'Unione Matematica Italiana     Full-text available via subscription   (Followers: 1)
British Journal of Mathematical and Statistical Psychology     Full-text available via subscription   (Followers: 21)
Bruno Pini Mathematical Analysis Seminar     Open Access  
Buletinul Academiei de Stiinte a Republicii Moldova. Matematica     Open Access   (Followers: 7)
Bulletin des Sciences Mathamatiques     Full-text available via subscription   (Followers: 4)
Bulletin of Dnipropetrovsk University. Series : Communications in Mathematical Modeling and Differential Equations Theory     Open Access   (Followers: 1)
Bulletin of Mathematical Sciences     Open Access   (Followers: 1)
Bulletin of the Brazilian Mathematical Society, New Series     Hybrid Journal  
Bulletin of the London Mathematical Society     Hybrid Journal   (Followers: 3)
Bulletin of the Malaysian Mathematical Sciences Society     Hybrid Journal  
Calculus of Variations and Partial Differential Equations     Hybrid Journal  
Canadian Journal of Science, Mathematics and Technology Education     Hybrid Journal   (Followers: 18)
Carpathian Mathematical Publications     Open Access   (Followers: 1)
Catalysis in Industry     Hybrid Journal   (Followers: 1)
CEAS Space Journal     Hybrid Journal  
CHANCE     Hybrid Journal   (Followers: 5)
Chaos, Solitons & Fractals     Hybrid Journal   (Followers: 3)
ChemSusChem     Hybrid Journal   (Followers: 7)
Chinese Annals of Mathematics, Series B     Hybrid Journal  
Chinese Journal of Catalysis     Full-text available via subscription   (Followers: 2)
Chinese Journal of Mathematics     Open Access  
Clean Air Journal     Full-text available via subscription   (Followers: 2)
Cogent Mathematics     Open Access   (Followers: 2)
Cognitive Computation     Hybrid Journal   (Followers: 4)
Collectanea Mathematica     Hybrid Journal  
College Mathematics Journal     Full-text available via subscription   (Followers: 2)
COMBINATORICA     Hybrid Journal  
Combustion Theory and Modelling     Hybrid Journal   (Followers: 13)
Commentarii Mathematici Helvetici     Hybrid Journal   (Followers: 1)
Communications in Contemporary Mathematics     Hybrid Journal  
Communications in Mathematical Physics     Hybrid Journal   (Followers: 1)
Communications On Pure & Applied Mathematics     Hybrid Journal   (Followers: 3)
Complex Analysis and its Synergies     Open Access   (Followers: 2)
Complex Variables and Elliptic Equations: An International Journal     Hybrid Journal  
Complexus     Full-text available via subscription  
Composite Materials Series     Full-text available via subscription   (Followers: 9)
Comptes Rendus Mathematique     Full-text available via subscription   (Followers: 1)
Computational and Applied Mathematics     Hybrid Journal   (Followers: 2)
Computational and Mathematical Methods in Medicine     Open Access   (Followers: 2)
Computational and Mathematical Organization Theory     Hybrid Journal   (Followers: 2)
Computational Complexity     Hybrid Journal   (Followers: 4)
Computational Mathematics and Modeling     Hybrid Journal   (Followers: 8)
Computational Mechanics     Hybrid Journal   (Followers: 4)
Computational Methods and Function Theory     Hybrid Journal  
Computational Optimization and Applications     Hybrid Journal   (Followers: 7)
Computers & Mathematics with Applications     Full-text available via subscription   (Followers: 5)
Concrete Operators     Open Access   (Followers: 4)
Confluentes Mathematici     Hybrid Journal  
COSMOS     Hybrid Journal  
Cryptography and Communications     Hybrid Journal   (Followers: 14)
Cuadernos de Investigación y Formación en Educación Matemática     Open Access  
Cubo. A Mathematical Journal     Open Access  
Czechoslovak Mathematical Journal     Hybrid Journal   (Followers: 1)
Demographic Research     Open Access   (Followers: 11)
Demonstratio Mathematica     Open Access  
Dependence Modeling     Open Access  
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 29)
Developments in Clay Science     Full-text available via subscription   (Followers: 1)
Developments in Mineral Processing     Full-text available via subscription   (Followers: 3)
Dhaka University Journal of Science     Open Access  
Differential Equations and Dynamical Systems     Hybrid Journal   (Followers: 2)
Discrete Mathematics     Hybrid Journal   (Followers: 7)
Discrete Mathematics & Theoretical Computer Science     Open Access  
Discrete Mathematics, Algorithms and Applications     Hybrid Journal   (Followers: 2)
Discussiones Mathematicae Graph Theory     Open Access   (Followers: 1)
Doklady Mathematics     Hybrid Journal  
Duke Mathematical Journal     Full-text available via subscription   (Followers: 1)
Edited Series on Advances in Nonlinear Science and Complexity     Full-text available via subscription  
Electronic Journal of Graph Theory and Applications     Open Access   (Followers: 2)
Electronic Notes in Discrete Mathematics     Full-text available via subscription   (Followers: 2)
Elemente der Mathematik     Full-text available via subscription   (Followers: 3)
Energy for Sustainable Development     Hybrid Journal   (Followers: 9)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Ensino da Matemática em Debate     Open Access  
Entropy     Open Access   (Followers: 5)
ESAIM: Control Optimisation and Calculus of Variations     Full-text available via subscription   (Followers: 1)
European Journal of Combinatorics     Full-text available via subscription   (Followers: 4)
European Journal of Mathematics     Hybrid Journal   (Followers: 1)
European Scientific Journal     Open Access   (Followers: 2)
Experimental Mathematics     Hybrid Journal   (Followers: 4)
Expositiones Mathematicae     Hybrid Journal   (Followers: 2)
Facta Universitatis, Series : Mathematics and Informatics     Open Access  
Fasciculi Mathematici     Open Access  
Finite Fields and Their Applications     Full-text available via subscription   (Followers: 4)
Fixed Point Theory and Applications     Open Access   (Followers: 1)
Formalized Mathematics     Open Access   (Followers: 2)
Foundations and Trends® in Econometrics     Full-text available via subscription   (Followers: 4)

        1 2 3 4 | Last

Journal Cover Advances in Catalysis
  [SJR: 2.139]   [H-I: 42]   [5 followers]  Follow
    
   Full-text available via subscription Subscription journal
   ISSN (Print) 0360-0564
   Published by Elsevier Homepage  [3042 journals]
  • Chapter One Recent Advances in the Application of Mößbauer Spectroscopy
           in Heterogeneous Catalysis
    • Authors: Kuo Liu; Alexandre I. Rykov; Junhu Wang; Tao Zhang
      Pages: 1 - 142
      Abstract: Publication date: 2015
      Source:Advances in Catalysis, Volume 58
      Author(s): Kuo Liu, Alexandre I. Rykov, Junhu Wang, Tao Zhang
      Mößbauer spectroscopy is a high-resolution spectroscopic technique suitable for investigating solid catalysts that contain nuclei which exhibit the Mößbauer effect. As integral part of a solid, the Mößbauer nucleus plays the role of a probe that interacts, by virtue of its magnetic and electric moments, with the surrounding fields created by unpaired electrons and ionic charges. The Mößbauer effect can be used to quantitatively measure these hyperfine interactions with unprecedented energy resolution, and a series of gamma-resonance techniques are based on this effect. These techniques allow the determination of the catalyst phase, the particle size, the structure, and the oxidation state in the bulk and at the surface of the catalyst, and they provide additional information that is difficult to acquire with other techniques. In this review, the principles of Mößbauer spectroscopy, the observed effects and hyperfine interactions, and in situ techniques are presented in compact form. The search for correlations between catalytic behavior and the structure and composition of catalysts motivate Mößbauer measurements under in situ conditions. The recent advances made by application of Mößbauer spectroscopy in catalysis are summarized in detail, including results from energy catalysis, environmental catalysis, aerospace catalysis, petrochemistry, and photocatalysis. Finally, brief insight into biological catalysis is given by reviewing the latest applications of synchrotron radiation nuclear gamma-resonance elastic and inelastic scattering spectroscopies that have recently been implemented at synchrotron rings of the third generation.

      PubDate: 2016-04-09T03:37:51Z
      DOI: 10.1016/bs.acat.2015.09.001
      Issue No: Vol. 58 (2016)
       
  • Chapter Two Zeolites and Zeotypes for Oil and Gas Conversion
    • Authors: Eelco T.C. Vogt; Gareth T. Whiting; Abhishek Dutta Chowdhury; Bert M. Weckhuysen
      Pages: 143 - 314
      Abstract: Publication date: 2015
      Source:Advances in Catalysis, Volume 58
      Author(s): Eelco T.C. Vogt, Gareth T. Whiting, Abhishek Dutta Chowdhury, Bert M. Weckhuysen
      Zeolite-based catalyst materials are widely used in chemical industry. In this chapter, the applications of zeolites and zeotypes in the catalytic conversion of oil and gas are reviewed. After a general introduction to zeolite science and technology, we discuss refinery applications, such as fluid catalytic cracking and hydrocracking, and also a wide variety of important petrochemical processes, such as alkylation and isomerization. The fields of low-temperature zeolite-assisted methane activation and methanol-to-hydrocarbon conversion are also covered, as well as several zeolite-catalyzed organic reactions with the aim to synthesize fine chemicals and pharmaceutical intermediates. By reviewing the processes, a wide range of catalytic functionalities are discussed, including Brønsted and Lewis acid sites, basic sites as well as metal and redox sites. The chapter continues with a discussion of the effects of zeolite–binder interactions in commercial catalysts, where the zeolite is only part of the system. We show how modern microspectroscopy methods provide detailed insight into the complex structure of these catalyst materials. Finally, we present future directions, which may include new zeolite-based processes for chemicals production or energy conversion, while new synthetic and characterization tools are envisioned to contribute to the accelerated discovery of new zeolite framework structures.

      PubDate: 2016-04-09T03:37:51Z
      DOI: 10.1016/bs.acat.2015.10.001
      Issue No: Vol. 58 (2016)
       
  • Series Page
    • Abstract: Publication date: 2016
      Source:Advances in Catalysis, Volume 59


      PubDate: 2016-11-29T09:39:35Z
       
  • Multiscale Aspects in Hydrocracking: From Reaction Mechanism Over
           Catalysts to Kinetics and Industrial Application
    • Authors: J.W. Thybaut; G.B. Marin
      Abstract: Publication date: Available online 10 November 2016
      Source:Advances in Catalysis
      Author(s): J.W. Thybaut, G.B. Marin
      Hydroisomerization and hydrocracking are widely recognized as versatile reactions. They allow not only converting feeds of various origin and quality into high-value blendstocks but also identifying the opportunities brought about by different solid acids with characteristic framework structures to tailor activity and product selectivity. The bifunctional reaction mechanism is an essential feature in this respect. It comprises acid-catalyzed rearrangement and cracking in addition to metal-catalyzed (de)hydrogenation and is effective at relatively mild operating conditions. Innumerable combinations of metal and acid functions, ranging, respectively, from sulfided transition metals to noble ones and from crystalline, microporous to wider pore, amorphous materials are available for ensuring the required catalytic performance to convert the feed into the desired product slate. An adequate understanding of the detailed reaction mechanism represents a crucial element in this endeavor. Over the years an interesting evolution from simple, lumped model toward advanced ones accounting for all potentially occurring elementary steps could be discerned. Hydrocracking has been among the first reactions involved in hydrocarbon fuel production and regained popularity in the last years because of the processing of ever more heavy crudes. Its horizon, however, extends beyond the fossil era with applications in bio-fuel production and plastic waste valorization. It ensures a bright future for a historical and reliable conversion process.

      PubDate: 2016-11-15T16:56:26Z
      DOI: 10.1016/bs.acat.2016.10.001
       
  • Series Page
    • Abstract: Publication date: 2015
      Source:Advances in Catalysis, Volume 58


      PubDate: 2016-04-09T03:37:51Z
       
  • Catalysis Science of NOx Selective Catalytic Reduction With Ammonia Over
           Cu-SSZ-13 and Cu-SAPO-34
    • Authors: C. Paolucci; J.R. Di Iorio; F.H. Ribeiro; R. Gounder; W.F. Schneider
      Pages: 1 - 107
      Abstract: Publication date: Available online 15 November 2016
      Source:Advances in Catalysis
      Author(s): C. Paolucci, J.R. Di Iorio, F.H. Ribeiro, R. Gounder, W.F. Schneider
      Copper-exchanged, small-pore chabazite (CHA) zeolites were commercialized in 2009 for the selective catalytic reduction (SCR) of NO x compounds with ammonia, as an emissions control strategy in diesel automotive exhaust aftertreatment. Here, we review the fundamental scientific advances that have since been made in the molecular-level understanding of the active sites and mechanisms responsible for NO x SCR with NH3 on Cu-CHA catalysts. A large body of experimental and theoretical characterization has identified that these “single-site” catalysts contain Cu sites of different local coordinations and structures, influenced by synthetic and environmental factors. The speciation of isolated Cu ions is inextricably linked to the support composition and the conditions of exposure. We make new and unifying connections among the seemingly disparate findings of experimental investigations of Cu-CHA catalysts that differ in origin and treatment history, using ex situ and in situ characterizations, and operando characterization during catalysis. We discuss theory-based studies, in conjunction with multiple experimental spectroscopic methods performed on model Cu-CHA catalysts, that provide precise molecular assignments across a wide range of catalysts and conditions. We highlight how molecular-level descriptions of the active sites and mechanisms can provide insight into the chemical factors that influence practical SCR performance and behavior, including the onset of low-temperature NO x conversion, and the critical role of NH3 solvation of Cu active sites for low-temperature activity. Finally, we describe how the fundamental heterogeneous catalysis science approaches used to interrogate Cu-CHA catalysts used for NO x SCR with NH3 can be used to elucidate the molecular-level details of chemistry that occurs on other single-site catalysts.

      PubDate: 2016-11-22T07:40:04Z
      DOI: 10.1016/bs.acat.2016.10.002
       
  • Chapter One Science and Technology of Framework Metal-Containing Zeotype
           Catalysts
    • Authors: Laszlo Nemeth; Simon R. Bare
      Pages: 1 - 97
      Abstract: Publication date: 2014
      Source:Advances in Catalysis, Volume 57
      Author(s): Laszlo Nemeth , Simon R. Bare
      Since the discovery of titanium silicalite more than 30 years ago, framework metal-containing zeotype materials have become an important class of catalyst, finding application in several industrial processes. Incorporation of cations of titanium, tin, iron, and other elements into zeotype frameworks (and also into ordered mesoporous materials) has led to both scientific progress and engineering innovations in catalysis. As a result of these developments, framework metal-containing zeotype materials have been implemented in the preceding decade in new commercial, by-product-free green processes, which have improved sustainability in the chemical industry. Based on a comprehensive analysis of the recent literature including patents, this review is a summary of the current knowledge of the science and technology of framework metal-containing zeotype materials. The synthesis of these materials is summarized, followed by an account of state-of-the-art characterization results. The key catalytic chemistries, which can be classified into oxidation reactions such as olefin epoxidation, aromatic hydroxylation and ammoximation, and weak Lewis acid-catalyzed reactions, are discussed. Mechanisms proposed for these transformations are reviewed, together with the theoretical and modeling tools applied in this context. An overview of the technologies associated with the use of framework metal-containing zeotype materials demonstrates how these processes are linked with each other through key chemicals involved.

      PubDate: 2014-12-17T06:58:01Z
      DOI: 10.1016/b978-0-12-800127-1.00001-1
      Issue No: Vol. 57 (2014)
       
  • Chapter Two Identification and Characterization of Surface Hydroxyl Groups
           by Infrared Spectroscopy
    • Authors: Konstantin Hadjiivanov
      Pages: 99 - 318
      Abstract: Publication date: 2014
      Source:Advances in Catalysis, Volume 57
      Author(s): Konstantin Hadjiivanov
      Surface hydroxyl groups are active centers in many catalytic reactions and can play an important role during catalyst preparation. In this chapter, the application of infrared spectroscopy for identification and characterization of surface OH groups is reviewed. The potential of other techniques is also briefly described. The vibrational signature of various types of hydroxyls is discussed; however, the amount of information that can be gathered from the hydroxyl spectra itself is limited. In contrast, application of probe molecules allows a profound characterization of hydroxyl species. Two scenarios are considered: the formation of H-bonds between hydroxyl groups and probe molecules, and chemical reactions between hydroxyl groups and molecules or ions (such as protonation of basic probe molecules, exchange reactions, redox processes). Means to explore the accessibility and location of hydroxyl groups are introduced. The properties of OD and OH groups are compared, and the application of H/D exchange as a diagnostic reaction is discussed. Finally, the hydroxyl population on materials of practical interest is analyzed.

      PubDate: 2014-12-17T06:58:01Z
      DOI: 10.1016/b978-0-12-800127-1.00002-3
      Issue No: Vol. 57 (2014)
       
  • Chapter Three Structural, Surface, and Catalytic Properties of Aluminas
    • Authors: Guido Busca
      Pages: 319 - 404
      Abstract: Publication date: 2014
      Source:Advances in Catalysis, Volume 57
      Author(s): Guido Busca
      The published data concerning the structural, surface, and catalytic properties of aluminas are reviewed, and these properties are related to the preparation procedures. The experimental and computational investigations of the structural characteristics of the polymorphs most useful for applications in catalysis, which are γ-, η-, δ-, and θ-Al2O3, are critically analyzed. The thermodynamics of the various polymorphs and the kinetics of the phase transitions are considered. The available information on Brønsted sites (i.e., hydroxyl groups), Lewis acid sites, and acid–base pairs on the surface of aluminas is discussed. Data regarding the application of aluminas as a catalyst and as a catalyst support are summarized. Suggestions for future research are proposed.

      PubDate: 2014-12-17T06:58:01Z
      DOI: 10.1016/b978-0-12-800127-1.00003-5
      Issue No: Vol. 57 (2014)
       
  • Series Page
    • Abstract: Publication date: 2014
      Source:Advances in Catalysis, Volume 57


      PubDate: 2014-12-17T06:58:01Z
       
  • Helmut Knözinger 1935–2014
    • Authors: Michel Che; Gerhard Ertl Bruce Gates Konstantin Hadjiivanov
      Abstract: Publication date: 2014
      Source:Advances in Catalysis, Volume 57
      Author(s): Michel Che , Gerhard Ertl , Bruce C. Gates , Konstantin Hadjiivanov


      PubDate: 2014-12-17T06:58:01Z
       
 
 
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