Download or read book Heterogeneous Catalysis Research Progress written by Mathias B. Gunther and published by . This book was released on 2008 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Catalysis Research written by Lawrence P. Bevy and published by Nova Publishers. This book was released on 2005 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysis is a chemical or biological process whereby the presence of an external compound, a catalyst, serves as an agent to cause a chemical reaction to occur or to improve reaction performance without altering the external compound. Catalysis is a very important process from an industrial point of view since the production of most industrially important chemicals involve catalysis. Research into catalysis is a major field in applied science, and involves many fields of chemistry and physics. The new book brings together leading research in this vibrant field.
Download or read book Progress in Heterogeneous Catalysis written by Dieter L. Marmaduke and published by Nova Science Pub Incorporated. This book was released on 2008 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous catalysis is a chemistry term which describes catalysis where the catalyst is in a different phase (ie. solid, liquid and gas, but also oil and water) to the reactants. Heterogeneous catalysts provide a surface for the chemical reaction to take place on. In order for the reaction to occur, one or more of the reactants must diffuse to the catalyst surface and adsorb onto it. After reaction, the products must desorb from the surface and diffuse away from the solid surface. Frequently, this transport of reactants and products from one phase to another plays a dominant role in limiting the reaction rate. Understanding these transport phenomena and surface chemistry such as dispersion is an important area of heterogeneous catalyst research. Catalyst surface area may also be considered. Mesoporous silicates, for example, have found utility as catalysts because their surface areas may be in excess of 1000 m2/g, which increases the probability that a reactant molecule in solution will come in contact with the catalyst surface and adsorb. If diffusion rates are not taken into account, the reaction rates for various reactions on surfaces depend solely on the rate constants and reactant concentrations. Asymmetric heterogeneous catalysis can be used to synthesise enantiomerically pure compounds using chiral heterogeneous catalysts. The field is of great industrial and environmental importance and the chapters in this book have been invited for their importance.
Download or read book Progress in Heterogeneous Catalysis written by Dieter L. Marmaduke and published by Nova Science Publishers. This book was released on 2008 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Aspects of Heterogeneous Catalysis written by M.A. Nascimento and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous catalysis is a fascinating and complex subject of utmost importance in the present day. Its immense technological and economical importance and the inherent complexity of the catalytic phenomena have stimulated theoretical and experimental studies by a broad spectrum of scientists, including chemists, physicists, chemical engineers, and material scientists. Computational and theoretical techniques are now having a major impact in this field. This book aims to illustrate and discuss the subject of heterogeneous catalysis and to show the current capabilities of the theoretical and computational methods for studying the various steps (diffusion, adsorption, chemical reaction) of heterogeneous catalytic process involving zeolites, metal oxides, and transition metal surfaces. The book covers: the use of techniques of computational chemistry to simulate zeolites, metallic and bimetallic surfaces, and oxide-supported metals; the impact of simulation methods on the understanding of the diffusion and adsorption of molecules and cations within the pores of zeolites, and also on the adsorption of molecules on metal and metal-oxide surfaces; and the applications of quantum-mechanical methods to the study of the reaction mechanism and pathways of the adsorbed molecules. This book is recommended primarily to scientists and graduate students conducting research in the fields of heterogeneous catalysis and surface science. It will also be valuable to advanced undergraduate students wishing to become acquainted with the latest developments in these exciting fields of research, and to experimentalists seeking theoretical support for interpreting their results.
Download or read book Catalysis Progress in Research written by Fred Basolo and published by . This book was released on 1973-10-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physical Basis for Heterogeneous Catalysis written by Edmund Drauglis and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE PHYSICAL BASIS FOR HETEROGENEOUS CATALYSIS is the proceedings of the ninth Battelle Colloquium in the Materials Sciences, held in Gstaad, Switzerland, September 2-6, 1974. It took as its theme the application of modern theoretical and experimental surface physics to heterogeneous catalysis. Progress in the field by classical chemical methods seemed to have slowed down, at a time when the need for better catalysts was particularly great. The Organizing Committee thought it might be possible to accelerate progress by the application of the powerful techniques evolved in recent years for studying atomically clean surfaces. However, the translation of ideas derived from clean single crystal surfaces with well characterized chemisorbed layers to real catalysts with high ratios of surface to mass on which reactions were taking place and requiring transport of mass and energy is a giant step, raising many questions and requiring thorough discussion by surface physicists on the one hand and catalytic chemists on the other. The 1974 Battelle Colloquium provided a forum for this exchange. As its usual custom, the Colloquium started the first day of introduc tory lectures by three distinguished scientists who have contributed impor tantly over many years to this field.
Download or read book Catalysis Progress in Research written by Fred Basolo and published by . This book was released on 1973 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalysis Progress in Research written by Fred Basolo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference on Catalysis was held under the auspices ofthe NATO Science Committee as part of its continuing effort to promote the useful progress of science through international cooperation. The Science Committee Conferences are deliberately designed and struc tured to focus expert attention on what is not known, rather than what is known. The participants are carefully selected to bring together a variety of complementary viewpoints. Through intensive group discussion, they seek to reach agreement on conclusions and recommendations for future research which will be of value to the scientific community. We believe that the endeavour has been particularly successful in the pre sent case. Some twenty-five papers, either in the form of reprints or specially written reviews were contributed by the participants for advance circulation, to outline the state-of-the art in the three areas ofheterogeneous, homogeneous and metalloenzyme catalysis and to focus attention on key problems. The availability of this background material precluded the need for lengthy intro ductory presentations and permitted rapid initiation of interdisciplinary discussions. All participants gave generously and enthusiastically of their expertise and effort during the week of the meeting, of ten long past normal bedtime hours, and we extend to them our deep gratitude.
Download or read book Catalysis Looks to the Future written by National Research Council and published by National Academies Press. This book was released on 1992-02-01 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact of catalysis on the nation's economy is evidenced by the fact that catalytic technologies generate U.S. sales in excess of $400 billion per year and a net positive balance of trade of $16 billion annually. This book outlines recent accomplishments in the science and technology of catalysis and summarizes important likely challenges and opportunities on the near horizon. It also presents recommendations for investment of financial and human resources by industry, academe, national laboratories, and relevant federal agencies if the nation is to maintain continuing leadership in this fieldâ€"one that is critical to the chemical and petroleum processing industries, essential for energy-efficient means for environmental protection, and vital for the production of a broad range of pharmaceuticals.
Download or read book Advances in Heterocatalysis by Nanomaterials written by Ioannis V. Yentekakis and published by MDPI. This book was released on 2020-05-13 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous catalysis played, plays, and will continue to play, a major key role in industrial processes for large-scale synthesis of commodity chemicals of global importance, and in catalytic systems that possess a critical role in energy generation and environmental protection approaches. As a result of the ongoing progress in materials science, nanotechnology, and characterizations, great advances have been achieved in heterogeneous catalysis by nanomaterials. Efficient approaches and advanced methods for the design of nano-structured composite materials (up to atomic level), subject to specific nano-morphologies with enhanced metal–metal and metal–support interactions favorable for catalysis (that enable fine-tuning of the critical properties of the designed catalysts), provide optimized catalysts with outstanding performances in numerous eco-friendly and cost-effective applications. Accordingly, great progress has been achieved involving, for example, emissions control, waste treatment, photocatalytic, bio-refinery, CO2 utilization, and fuel cells applications, as well as hydrocarbon processing for H2, added-value chemicals, and liquid fuels production. The themed Special Issue has succeeded in collecting 10 high-quality contributions that cover recent research progress in the field for a variety of applications (e.g., environment, energy, added-value chemicals/organics synthesis, and bio-transformation) declaring the prospect and importance of nanomaterials in all the directions of heterogeneous catalysis.
Download or read book Methanol Synthesis written by Jerzy Skrzypek and published by . This book was released on 1994 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Catalysis written by Bruce C. Gates and published by Academic Press. This book was released on 2009-02-17 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysis is the acceleration of a chemical reaction by a catalyst, a substance that notably affects the rate of a chemical reaction without itself being consumed or altered. Since 1948, Advances in Catalysis has filled the gap between the papers that report on and the textbooks that teach in the diverse areas of catalysis research. The editors of and contributors to Advances in Catalysis are dedicated to recording progress in this area. * Provides a comprehensive review of all aspects of catalytic research * Contains in-depth, critical, state-of-the-art reports
Download or read book Chemical Bonding at Surfaces and Interfaces written by Anders Nilsson and published by Elsevier. This book was released on 2011-08-11 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular surface science has made enormous progress in the past 30 years. The development can be characterized by a revolution in fundamental knowledge obtained from simple model systems and by an explosion in the number of experimental techniques. The last 10 years has seen an equally rapid development of quantum mechanical modeling of surface processes using Density Functional Theory (DFT). Chemical Bonding at Surfaces and Interfaces focuses on phenomena and concepts rather than on experimental or theoretical techniques. The aim is to provide the common basis for describing the interaction of atoms and molecules with surfaces and this to be used very broadly in science and technology. The book begins with an overview of structural information on surface adsorbates and discusses the structure of a number of important chemisorption systems. Chapter 2 describes in detail the chemical bond between atoms or molecules and a metal surface in the observed surface structures. A detailed description of experimental information on the dynamics of bond-formation and bond-breaking at surfaces make up Chapter 3. Followed by an in-depth analysis of aspects of heterogeneous catalysis based on the d-band model. In Chapter 5 adsorption and chemistry on the enormously important Si and Ge semiconductor surfaces are covered. In the remaining two Chapters the book moves on from solid-gas interfaces and looks at solid-liquid interface processes. In the final chapter an overview is given of the environmentally important chemical processes occurring on mineral and oxide surfaces in contact with water and electrolytes. Gives examples of how modern theoretical DFT techniques can be used to design heterogeneous catalysts This book suits the rapid introduction of methods and concepts from surface science into a broad range of scientific disciplines where the interaction between a solid and the surrounding gas or liquid phase is an essential component Shows how insight into chemical bonding at surfaces can be applied to a range of scientific problems in heterogeneous catalysis, electrochemistry, environmental science and semiconductor processing Provides both the fundamental perspective and an overview of chemical bonding in terms of structure, electronic structure and dynamics of bond rearrangements at surfaces
Download or read book Bridging Heterogeneous and Homogeneous Catalysis written by Can Li and published by John Wiley & Sons. This book was released on 2014-04-03 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are two main disciplines in catalysis research -- homogeneous and heterogeneous catalysis. This is due to the fact that the catalyst is either in the same phase (homogeneous catalysis) as the reaction being catalyzed or in a different phase (heterogeneous catalysis). Over the past decade, various approaches have been implemented to combine the advantages of homogeneous catalysis (efficiency, selectivity) with those of heterogeneous catalysis (stability, recovery) by the heterogenization of homogeneous catalysts or by carrying out homogeneous reactions under heterogeneous conditions. This unique handbook fills the gap in the market for an up-to-date work that links both homogeneous catalysis applied to organic reactions and catalytic reactions on surfaces of heterogeneous catalysts. As such, it highlights structural analogies and shows mechanistic parallels between the two, while additionally presenting kinetic analysis methods and models that either work for both homogeneous and heterogeneous catalysis. Chapters cover asymmetric, emulsion, phase-transfer, supported homogeneous, and organocatalysis, as well as in nanoreactors and for specific applications, catalytic reactions in ionic liquids, fluorous and supercritical solvents and in water. Finally, the text includes computational methods for investigating structure-reactivity relations. With its wealth of information, this invaluable reference provides academic and industrial chemists with novel concepts for innovative catalysis research.
Download or read book Preparation of Catalysts V written by B. Delmon and published by Elsevier. This book was released on 1991-06-03 with total page 747 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organizers of this Fifth Symposium maintained their initial objectives, namely to gather experts from both industries and universities to discuss the scientific problems involved in the preparation of heterogeneous catalysts, and to encourage as much as possible the presentation of research work on catalysts of real industrial significance. Another highlight of these symposia was to reserve a substantial part of the program to new developments in catalyst preparation, new preparation methods and new catalytic systems. The fact that chemical reactions which were hardly conceivable some years ago have become possible today through the development of appropriate catalytic systems proves that catalysis is in constant progress. The papers in this volume deal with studies of unit operations in catalyst preparation, catalyst preparation via the sol-gel route, preparation of catalysts from layered structures and pillaring of clays, preparation and modification of zeolite-based catalysts, carbon supported catalysts, preparation of oxidation catalysts and novel and unusual preparation methods.
Download or read book Heterogeneous Catalysis written by Moises Romolos Cesario and published by Elsevier. This book was released on 2022-04-27 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous Catalysis: Materials and Applications focuses on heterogeneous catalysis applied to the elimination of atmospheric pollutants as an alternative solution for producing clean energy and the valorization of chemical products. The book helps users understand the properties of catalytic materials and catalysis phenomena governing electrocatalytic/catalytic reactions, and – more specifically – the study of surface and interface chemistry. By clustering knowledge in these fields, the book makes information available to both the academic and industrial communities. Further, it shows how heterogeneous catalysis applications can be used to solve environmental problems and convert energy through electrocatalytic reactions and chemical valorization. Sections cover nanomaterials for heterogeneous catalysis, heterogeneous catalysis mechanisms, SOX adsorption, greenhouse gases conversion, reforming reactions for hydrogen production, valorization of hydrogen energy, energy conversion and biomass valorization. Addresses topics of increasing interest to society such as the valorization of biomass, the use of polluting gases to produce value-added products, and the optimization of catalytic materials for water splitting, fuel cells, and other devices Discusses pollutant adsorption by industrial fume desulphurization processes Helps improve processes for obtaining chemicals using nonconventional technologies
