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Molecular Transport And Reaction In Zeolites
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Book Synopsis Molecular Transport and Reaction in Zeolites by : Nai Y. Chen
Download or read book Molecular Transport and Reaction in Zeolites written by Nai Y. Chen and published by John Wiley & Sons. This book was released on 1996-12-17 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the molecular dynamics that occur within zeolites. Our understanding of how these marvelous catalysts work has been greatly enhanced by the advent ot new tools such as NMR, scanning-transmission-electron microscopy, and sophisticated computer modelling. By combining recent findings and newly developed models with classical developments in the theory of diffusion, this book provides a complete picture of the physical chemistry of hydrocarbon transformation in zeolites. It should be an excellent guide to those involved in catalyst design.
Book Synopsis Molecular Transport and Reaction in Zeolites: Design and Application of Shape Selective Catalysts by :
Download or read book Molecular Transport and Reaction in Zeolites: Design and Application of Shape Selective Catalysts written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Modelling by : Alan Hinchliffe
Download or read book Chemical Modelling written by Alan Hinchliffe and published by Royal Society of Chemistry. This book was released on 2006 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Modelling: Applications and Theory comprises critical literature reviews of molecular modelling, both theoretical and applied. Molecular modelling in this context refers to modelling the structure, properties and reactions of atoms, molecules & materials. Each chapter is compiled by experts in their fields and provides a selective review of recent literature. With chemical modelling covering such a wide range of subjects, this Specialist Periodical Report serves as the first port of call to any chemist, biochemist, materials scientist or molecular physicist needing to acquaint themselves of major developments in the area. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis. Current subject areas covered are Amino Acids, Peptides and Proteins, Carbohydrate Chemistry, Catalysis, Chemical Modelling. Applications and Theory, Electron Paramagnetic Resonance, Nuclear Magnetic Resonance, Organometallic Chemistry. Organophosphorus Chemistry, Photochemistry and Spectroscopic Properties of Inorganic and Organometallic Compounds. From time to time, the series has altered according to the fluctuating degrees of activity in the various fields, but these volumes remain a superb reference point for researchers.
Book Synopsis Synthesis and Molecular Transport Studies in Zeolites and Nanoporous Membranes by : Vivek Vattipalli
Download or read book Synthesis and Molecular Transport Studies in Zeolites and Nanoporous Membranes written by Vivek Vattipalli and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of nanoporous materials such as zeolites and nanoporous membranes has provided cost-effective solutions to some of the most pressing problems of the 20th century such as the conversion of crude oil into fuels and valuable chemicals. Hierarchical zeolites and mesoporous inorganic membranes are showing great promise in addressing new problems such as the conversion of biomass into value-added chemicals and development of energy-efficient separation processes. The synthesis and fundamental aspects of molecular transport in these new materials with hierarchical porosities need to be better understood in order to rationally develop them for these desired applications. Pore narrowing and pore blockage have been proposed to cause the significantly slower than expected diffusion in hierarchical zeolites and zeolite nanoparticles. In the first part of this work, the diffusion of cyclohexane and 1-methylnaphthalene is studied in MCM-41, SBA-15 and conventional as well as hierarchical silicalite-1 zeolite. The role of sorbate-sorbent interactions is investigated and surface diffusion-mediated pore re-entry into micropores is proposed to cause the slower overall diffusion in these materials. Previous molecular transport studies in zeolites have been limited to the MFI zeolite framework, mainly due to ease of synthesis of siliceous MFI in comparison to other siliceous zeolites. Additionally, the requirement of fluoride for the synthesis of siliceous zeolites makes practical applications of these materials difficult. The second part of this work addresses these problems by developing a general, fluoride-free method for the synthesis of siliceous zeolites. The dry gel conversion (DGC) method is used to synthesize 2 new siliceous zeolites for the first time without using fluoride. Mechanistic aspects of siliceous zeolite synthesis, the DGC method in particular, are studied and employed to further improve the synthesis method. Mesoporous inorganic membranes have ideally suited properties for separations such as low pressure drop and thermal as well mechanical stability. However, two challenges impede their applications - the large-scale synthesis of defect-free mesoporous membranes and the development of a fundamental understanding of molecular transport in them. In the third part of this thesis, a new, scalable synthesis method with superior coverage is demonstrated for the synthesis of hybrid mesoporous silica-anodized aluminium oxide (AAO) membranes. Steady state non-equilibrium capillary condensation is studied in detail using the permeation of butane through AAO membranes. New aspects of this phenomenon are reported and experimental evidence is found in support of a partial capillary condensed state of a mesopore stabilized by molecular transport.
Book Synopsis Mass Transport Characteristics of Zeolite Cracking Catalysts by : University of Mississippi. Department of Chemical Engineering
Download or read book Mass Transport Characteristics of Zeolite Cracking Catalysts written by University of Mississippi. Department of Chemical Engineering and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass transport characteristics of zeolite cracking catalysts by : University of Mississippi. Department of Chemical Engineering
Download or read book Mass transport characteristics of zeolite cracking catalysts written by University of Mississippi. Department of Chemical Engineering and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mesoporous Zeolites by : Javier García-Martínez
Download or read book Mesoporous Zeolites written by Javier García-Martínez and published by John Wiley & Sons. This book was released on 2015-05-26 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by a top-level team of both academic and industrial researchers in the field, this is an up-to-date review of mesoporous zeolites. The leading experts cover novel preparation methods that allow for a purpose-oriented fine-tuning of zeolite properties, as well as the related materials, discussing the specific characterization methods and the applications in close relation to each individual preparation approach. The result is a self-contained treatment of the different classes of mesoporous zeolites. With its academic insights and practical relevance this is a comprehensive handbook for researchers in the field and related areas, as well as for developers from the chemical industry.
Book Synopsis Zeolites and Catalysis by : Jiri Cejka
Download or read book Zeolites and Catalysis written by Jiri Cejka and published by John Wiley & Sons. This book was released on 2010-05-27 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt: This indispensable two-volume handbook covers everything on this hot research field. The first part deals with the synthesis, modification, characterization and application of catalytic active zeolites, while the second focuses on such reaction types as cracking, hydrocracking, isomerization, reforming and other industrially important topics. Edited by a highly experienced and internationally renowned team with chapters written by the "Who's Who" of zeolite research.
Book Synopsis Handbook of Zeolite Science and Technology by : Scott M. Auerbach
Download or read book Handbook of Zeolite Science and Technology written by Scott M. Auerbach and published by CRC Press. This book was released on 2003-07-31 with total page 1526 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Zeolite Science and Technology offers effective analyses ofsalient cases selected expressly for their relevance to current and prospective research. Presenting the principal theoretical and experimental underpinnings of zeolites, this international effort is at once complete and forward-looking, combining fundamental concepts with the most sophisticated data for each scientific subtopic and budding technology. Supplying over 750 figures, and 350 display equations, this impressive achievement in zeolite science observes synthesis through the lens of MFI (ZSM-5 and silicalite). Chapters progress from conceptual building blocks to complex research presentations.
Book Synopsis Zeolites and Zeolite-like Materials by : Bert Sels
Download or read book Zeolites and Zeolite-like Materials written by Bert Sels and published by Elsevier. This book was released on 2016-07-29 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeolites and Zeolite-like Materials offers a comprehensive and up-to-date review of the important areas of zeolite synthesis, characterization, and applications. Its chapters are written in an educational, easy-to-understand format for a generation of young zeolite chemists, especially those who are just starting research on the topic and need a reference that not only reflects the current state of zeolite research, but also identifies gaps and opportunities. The book demonstrates various applications of zeolites in heterogeneous catalysis and biomass conversion and identifies the endless possibilities that exist for this class of materials, their structures, functions, and future applications. In addition, it demonstrates that zeolite-like materials should be regarded as a living body developing towards new modern applications, thereby responding to the needs of modern technology challenges, including biomass conversion, medicine, laser techniques, and nanomaterial design, etc. The book will be of interest not only to zeolite-focused researchers, but also to a broad scientific and non-scientific audience. Provides a comprehensive review of the literature pertaining to zeolites and zeolite-like materials since 2000 Covers the chemistry of novel zeolite-like materials such as Metal-Organic Frameworks (MOFs), Covalent Organic Frameworks (COFs), hierarchical zeolite materials, new mesoporous and composite zeolite-like micro/mesoporous materials Presents essential information of the new zeolite-like structures, with a balanced coverage of the most important areas of the zeolite research (synthesis, characterization, adsorption, catalysis, new applications of zeolites and zeolite-like materials) Contains chapters prepared by known specialists who are members of the International Zeolite Association
Book Synopsis Non-Equilibrium Transport in Zeolites from Molecular Simulations by : Martin J. Sanborn
Download or read book Non-Equilibrium Transport in Zeolites from Molecular Simulations written by Martin J. Sanborn and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Investigation of Surface Barrier During Molecular Transport in Hierarchical Zeolites by : Xiaoduo Qi
Download or read book The Investigation of Surface Barrier During Molecular Transport in Hierarchical Zeolites written by Xiaoduo Qi and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hierarchical zeolites with micropore lengths on the order of nanometers have been synthesized with the aim of reducing mass transfer limitation. However, due to large external surface to volume ratios, the mass transport in these materials can be hindered by a secondary rate limitation step imposed on the external surface of the zeolites. This has led to the general phenomenon referred to as "surface barriers", which cause the enhancement in mass transport being far lower than expected. In order to fully unlock the potential of hierarchical zeolites, it is imperative to fundamentally understand the molecular transport in these new types of materials. This dissertation presents studies of molecular transport in hierarchical zeolites and the investigations on the mechanisms of surface barrier. From Frequency Response study, an asymmetric surface barrier was observed between adsorption and desorption, suggesting a possible surface pore blockage mechanism that causes the surface barrier. By studying the adsorptions and diffusions of four different probing molecules on silicalite-1 zeolites with different crystal sizes, it was observed that the onset of surface barrier in small zeolites is also related to the strong sorbate-sorbent interaction at the external surface. Micropore re-entry caused by surface diffusion extend the characteristic micropore diffusion length, leading to the slower than expected overall mass transport in these materials. In order to minimize the occurrence of micropore re-entry, a new composite material consisting 80 nm silicalite-1 and 35 nm non-porous silica nanoparticle was developed. The absence of micropore opening on the external surface of silica nanoparticle significantly reduce the chance for diffusion molecule to re-enter the micropore, leading to a much faster mass transport as compared to pure 80 nm silicalite-1.
Book Synopsis Adsorption and Diffusion by : Hellmut G. Karge
Download or read book Adsorption and Diffusion written by Hellmut G. Karge and published by Springer Science & Business Media. This book was released on 2008-06-17 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Molecular Sieves - Science and Technology" covers, in a comprehensive manner, the science and technology of zeolites and all related microporous and mesoporous materials. The contributions are grouped together topically in such a way that each volume deals with a specific sub-field. Volume 7 treats fundamentals and analyses of adsorption and diffusion in zeolites including single-file diffusion. Various methods of measuring adsorption and diffusion are described and discussed.
Book Synopsis Zeolites and Related Materials: Trends Targets and Challenges(SET) by : Antoine Gedeon
Download or read book Zeolites and Related Materials: Trends Targets and Challenges(SET) written by Antoine Gedeon and published by Elsevier. This book was released on 2008-08-19 with total page 1423 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book "Zeolites and Related Materials: Trends, Targets and Challenges" reports the communications that have been presented at the 4th International FEZA (Federation of European Zeolite Associations) Conference in Paris, September 3-6, 2008. It gives an excellent overview of the present state of the art of ordered nanoporous solids including zeolites as well as synthetic layered materials (clays), nanosized molecular sieves, ordered mesoporous solids, metal-organic-framework compounds (MOFs), carbons, etc. with emphasis on the synthesis, comprehensive characterization and advanced applications. The significant research activities in this domain are due to the outstanding properties of those nanoporous materials that concentrate the collaborative efforts of researchers from material science, chemistry, physical chemistry and physics.The understanding and development of the unique properties of porous materials relies on a unique blend of multidisciplinary knowledge covering material science, with the implication of organic and colloid chemistry, to prepare micro- and mesoporous materials; surface and adsorption sciences sustained by theory and modelling to understand the peculiar behaviour of molecules in confined systems; special branches of catalysis, physics, chemical engineering and life science to design novel applications. This book summarizes the developments in the area of nanoporous solids at the dawn of the 21st century, useful for both students/young researchers entering the field of nanoporous materials, as well as for senior scientists Also summarizes the new family of porous compounds, e.g. MOF's and ordered porous carbon The present state-of-the-art and prospects of nanoporous solids for advanced applications is discussed
Book Synopsis Anomalous Transport by : Rainer Klages
Download or read book Anomalous Transport written by Rainer Klages and published by John Wiley & Sons. This book was released on 2008-09-02 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-author reference work provides a unique introduction to the currently emerging, highly interdisciplinary field of those transport processes that cannot be described by using standard methods of statistical mechanics. It comprehensively summarizes topics ranging from mathematical foundations of anomalous dynamics to the most recent experiments in this field. In so doing, this monograph extracts and emphasizes common principles and methods from many different disciplines while providing up-to-date coverage of this new field of research, considering such diverse applications as plasma physics, glassy material, cell science, and socio-economic aspects. The book will be of interest to both theorists and experimentalists in nonlinear dynamics, statistical physics and stochastic processes. It also forms an ideal starting point for graduate students moving into this area. 18 chapters written by internationally recognized experts in this field provide in-depth introductions to fundamental aspects of anomalous transport.
Book Synopsis Modelling of Structure and Reactivity in Zeolites by : Charles Richard Arthur Catlow
Download or read book Modelling of Structure and Reactivity in Zeolites written by Charles Richard Arthur Catlow and published by . This book was released on 1992 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text reviews the art of modelling zeolite structures (complex inorganic materials) and discusses their reactivity.
Book Synopsis Access in Nanoporous Materials by : T.J. Pinnavaia
Download or read book Access in Nanoporous Materials written by T.J. Pinnavaia and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series of books, which is published at the rate of about one per year, addresses fundamental problems in materials science. The contents cover a broad range of topics from small clusters of atoms to engineering materials and involve chemistry, physics, and engineering, with length scales ranging from Ångstromsup to millimeters. The emphasis is on basic science rather than on applications. Each book focuses on a single area ofcurrent interest and brings together leading experts to give an up-to-date discussion of their work and the work ofothers. Each article contains enough references that the interested reader can accesstherelevant literature. Thanks aregiven to the Center forFundamental Materials Research atMichigan State University forsupportingthis series. M.F. Thorpe, Series Editor E-mail: [email protected] EastLansing,Michigan, September, 1995 PREFACE This book records selected papers given at an interdisciplinary Symposium on Access in Nanoporous Materials held in Lansing, Michigan, on June 7-9, 1995. Broad interest in the synthesis of ordered materials with pore sizes in the 1.0-10 nm range was clearly manifested in the 64 invited and contributed papers presented by workers in the formal fields of chemistry, physics, and engineering. The intent of the symposium was to bring together a small number ofleading researchers within complementary disciplines to share in the diversity of approaches to nanoporous materials synthesis and characterization.
