Download or read book Insight Into Acetylene Selective Hydrogenation on Transition Metal Catalysts written by Lei Gao and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Insight Into the Selective Hydrogenation of Acetylene on Pd based Catalysts written by Wenbo Xie and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalytic and Process Study of the Selective Hydrogenation of Acetylene and 1 3 Butadiene written by Ruijun Hou and published by Springer. This book was released on 2017-01-05 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis offers novel methods for catalyst and process design for the selective hydrogenation of acetylene and 1,3-butadiene. The author predicts the properties of supported Pd–Ni bimetallic catalysts using density functional theory (DFT) calculations and temperature-programmed desorption (TPD). The excellent correlation between model surfaces and supported catalysts demonstrates the feasibility of designing effective bimetallic catalysts for selective hydrogenation reactions. The author also proposes a method for designing non-precious metal catalysts to replace precious metals. She modifies the process of selective hydrogenation of acetylene by coupling the selective adsorption to the selective hydrogenation in the liquid phase, as a result of which the ethylene selectivity is greatly improved and heat transfer is greatly enhanced. Lastly, by analyzing the mechanism of liquid-phase hydrogenation, the author proposes a multi-stage slurry bed reactor for industrial applications.“/p>
Download or read book Computational Insight Into Catalytic Hydrogenation of Nitrogen and Carbon Monoxide written by Andrew J. Medford and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational modeling is becoming an increasingly important tool in the design of heterogeneous catalysts. This thesis explores recent advances in the atomic-scale computational design of catalytic materials. Nitrogen hydrogenation is used to illustrate the core concepts in part I, and these concepts are applied to a wide range of carbon monoxide hydrogenation reactions in part II. Nitrogen hydrogenation, or ammonia synthesis, is one of the most important catalytic processes ever discovered. Industrial-scale ammonia synthesis enabled the mass production of fertilizers which are now used to produce approximately half of the global food supply. Ammonia synthesis is also a well-studied and relatively simple catalytic reaction, and has served as a bellwether reaction for computation in heterogeneous catalysis. Part I of this thesis revisits the ammonia synthesis reaction. Chapter 2 discusses the importance of ammonia synthesis and heterogeneous catalysis in general. Chapter 3 introduces density functional theory (DFT), the workhorse method in quantum-mechanical studies of catalytic materials. Chapter 4 examines how DFT energies can be combined with kinetic modeling in order to gain insight into catalytic trends and design strategies for ammonia synthesis. Chapter 5 applies a novel method for uncertainty quantification and error propagation in order to demonstrate the robustness of the computational catalyst design against uncertainty in the DFT calculations. Hydrogenation of carbon monoxide (CO) is a complex process with many potentially valuable products including methane, methanol, and higher hydrocarbons and alcohols. These reactions will play an increasingly important role in the global economy as fossil resources are exhausted and replaced by more sustainable synthetic fuels. Part II of the thesis applies many of the concepts introduced in part I to CO hydrogenation reactions. Chapter 6 examines the production of ethanol from synthesis gas (CO and H2) and applies the techniques of chapter 4 in order to map the activity and selectivity trends across transition-metal (211) surfaces. Several alloys are identified as promising catalysts for selective ethanol synthesis, including CoCu and CoPt alloys. Chapter 7 combines computational methods and experiments to provide insight into the complex selectivity patterns of CO hydrogenation over rhodium catalysts, indicating that the reaction is structure sensitive and that rhodium catalysts are intrinsically selective toward acetaldehyde rather than ethanol. Chapter 8 and chapter 9 examine CO hydrogenation over non-metallic catalysts (Mo2C and ZnO), revealing the importance of surface termination and the fundamentally different surface reactivity of transition-metal compounds.
Download or read book Metal Catalyzed Asymmetric Hydrogenation Evolution and Prospect written by and published by Academic Press. This book was released on 2021-11-23 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal-Catalyzed Asymmetric Hydrogenation, Volume 68 in the Advances in Catalysis series, fills the gap between journal papers and textbooks across diverse areas of catalysis research. For more than 60 years, this series has recorded and presented the latest progress in the field of catalysis, giving the scientific community comprehensive and authoritative reviews. Chapters in this new release include Asymmetric hydrogenation of functionalized olefins, Asymmetric hydrogenation of unfunctionalized olefins or with poorly coordinative groups, Asymmetric hydrogenation of imines, Asymmetric hydrogenation of ketones, Asymmetric hydrogenation in industry, and Computational insights into metal-catalyzed asymmetric hydrogenation. This series is an invaluable and comprehensive resource for chemical engineers and chemists working in the field of catalysis in both academia and industry, with this release focusing on solid acids, surface acidity and heterogeneous acid catalysis. Contains authoritative reviews written by experts in the field Explores topics that reflect progress in the field, such as catalyst synthesis, catalyst characterization, catalytic chemistry, reaction engineering, computational chemistry and physics Provides insightful and critical articles that are fully edited to suit various backgrounds
Download or read book Hydrogenation with Low Cost Transition Metals written by Jacinto Sa and published by CRC Press. This book was released on 2018-10-08 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogenation with Low-Cost Transition Metals describes recent developments in the preparation of catalysts and their catalytic abilities in chemoselective hydrogenation for the production of fine chemicals and pharmaceutical compounds. Emphasizing the use of low-cost metals (Cu, Ni, Fe, and Ag) that are often present in the form of nanoparticles, the book provides valuable reaction mechanism schemes, engineering solutions, and perspective for the field.
Download or read book The Selective Hydrogenation of Acetylene in the Presence of Ethylene with Supported Metal Catalyst written by Jeremiah R. Secrest and published by . This book was released on 2011 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New and Future Developments in Catalysis written by Hema Ramsurn and published by Elsevier Inc. Chapters. This book was released on 2013-07-13 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxide Surfaces written by and published by Elsevier. This book was released on 2001-05-21 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a multi-author survey (in 15 chapters) of the current state of knowledge and recent developments in our understanding of oxide surfaces. The author list includes most of the acknowledged world experts in this field. The material covered includes fundamental theory and experimental studies of the geometrical, vibrational and electronic structure of such surfaces, but with a special emphasis on the chemical properties and associated reactivity. The main focus is on metal oxides but coverage extends from 'simple' rocksalt materials such as MgO through to complex transition metal oxides with different valencies.
Download or read book Homogeneous Hydrogenation with Non Precious Catalysts written by Johannes F. Teichert and published by John Wiley & Sons. This book was released on 2020-02-03 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide and comprehensive review of the most recent advances in homogeneous hydrogenation with non-precious catalysts In recent years a great deal of research has been applied to homogeneous hydrogenation with non-precious catalysis. Homogeneous Hydrogenation with Non-Precious Catalysts offers a review of the latest developments and advances in the field. In addition, the book explores the transition metal catalysis and the concept of frustrated-lewis-pair (FLP) and enzymatic processes. The editor?a noted expert on the topic?discusses the various catalysts and puts the focus on the synthetic vantage point, highlighting the functional group transformation enabled by the respective catalyst. Homogeneous Hydrogenation with Non-Precious Catalysts also presents the industrial view of the topic and includes an overview of the various catalysts by functional group transformations. This important book: -Offers a comprehensive presentation of the newest development in this emerging field -Highlights the transition metal catalysis, the frustrated-lewis-pair (FLP) concept, and enzymatic processes -Provides an industrial perspective of the topic -Includes an overview of the various catalysis by functional group transformations Written for organic chemists, researchers in synthetic chemistry, and industry professionals, Homogeneous Hydrogenation with Non-Precious Catalysts offers a comprehensive and accessible guide to the most recent advances in the field. [/COPY_WEB_CATALOG]
Download or read book Supported Metal Single Atom Catalysis written by Philippe Serp and published by Wiley-VCH. This book was released on 2022-02-22 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: b”Supported Metal Single Atom CatalysisCovers all key aspects of supported metal single atom catalysts, an invaluable resource for academic researchers and industry professionals alike Single atom catalysis is one of the most innovative and dynamic research areas in catalysis science. Supported metal catalysts are used extensively across the chemical industry, ranging from fine and bulk chemical production to petrochemicals. Single atom catalysts (SACs) combine the advantages of both homogeneous and heterogeneous catalysts such as catalyst stability, activity, and high dispersion of the active phase. Supported Metal Single Atom Catalysis provides an authoritative and up-to-date overview of the emerging field, covering the synthesis, preparation, characterization, modeling, and applications of SACs. This comprehensive volume introduces the basic principles of single atom catalysis, describes metal oxide and carbon support materials for SAC preparation, presents characterization techniques and theoretical calculations, and discusses SACs in areas including selective hydrogenation, oxidation reactions, activation of small molecules, C-C bond formation, and biomedical applications. Highlights the activity, selectivity, and stability advantages of supported metal SACs compared to other heterogeneous catalysts Covers applications of SACs in thermal catalysis, electrocatalysis, and photocatalysis Includes chapters on single atom alloys and supported double and triple metal atom catalysts Discusses the prospects, challenges, and potential industrial applications of SACs Supported Metal Single Atom Catalysis is an indispensable reference for all those working in the fields of catalysis, solid-state chemistry, materials science, and spectroscopy, including catalytic chemists, organic chemists, electrochemists, theoretical chemists, and industrial chemists.
Download or read book Atomically Precise Metal Nanoclusters written by Thalappil Pradeep and published by Elsevier. This book was released on 2022-10-08 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atomically Precise Metal Nanoclusters discusses the host of exciting properties that can be better harnessed with a solid understanding of their different structures and subsequent properties at the molecular level. The book delves into the foundational chemistry of numerous key atomically precise clusters and provides guidance on key approaches employed to examine them. Beginning with an introduction to the properties and fundamental nano-chemistry of atomically precise metal nanoclusters, the book then explores key approaches for their synthesis, examination and modification, including chromatography, mass spectrometry, single crystal diffraction, electron microscopy and computational approaches. A final section covers specific nanoclusters and cluster systems. User will find the important knowledge of an experienced team of contributors who provide a detailed guide to understanding, investigating and utilizing these useful structures that is ideal for anyone working in related fields. Presents a comprehensive guide that combines key knowledge, approaches and other types of metal nanocluster Supports an understanding of important interactions and approaches using clear figures Highlights future needs and prospects in the field
Download or read book Hydrogen Transfer Reactions written by Gabriela Guillena and published by Springer. This book was released on 2016-09-27 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Download or read book Selective Hydrogenation of Acetylene on Zeolite supported Bimetallic Catalysts written by Wei Huang and published by ProQuest. This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalytic Hydrogenation written by L. Cervený and published by Elsevier. This book was released on 1986-08-01 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collection of contributions in this volume presents the most up-to-date findings in catalytic hydrogenation. The individual chapters have been written by 36 top specialists each of whom has achieved a remarkable depth of coverage when dealing with his particular topic. In addition to detailed treatment of the most recent problems connected with catalytic hydrogenations, the book also contains a number of previously unpublished results obtained either by the authors themselves or within the organizations to which they are affiliated.Because of its topical and original character, the book provides a wealth of information which will be invaluable not only to researchers and technicians dealing with hydrogenation, but also to all those concerned with homogeneous and heterogeneous catalysis, organic technology, petrochemistry and chemical engineering.
Download or read book Bimetallic Catalysts written by John H. Sinfelt and published by Wiley-Interscience. This book was released on 1983-09-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents an account of the research on bimetallic catalysts. Focuses attention on the possibility of influencing the selectivity of chemical transformations on metal surfaces and preparing metal alloys in a highly dispersed state. Covers the validation and elucidation of the bimetallic cluster concept. Includes figures and tables.
Download or read book Homogeneous Hydrogenation written by P.A. Chaloner and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Homogeneous hydrogenation is one of the most thoroughly studied fields of homogeneous catalysis. The results of these studies have proved to be most important for an understanding of the underlying principles of the activation of small molecules by transition metal complexes. During the past three decades homogeneous hydrogenation has found widespread application in organic chemistry, including the production of important pharmaceuticals, especially where a sophisticated degree of selectivity is required. This volume presents a general account of the main principles and applications of homogeneous hydrogenation by transition metal complexes. Special attention is devoted to the mechanisms by which these processes occur, and the role of the recently discovered complexes of molecular hydrogen is described. Sources of hydrogen, other than H2, are also considered (transfer hydrogenation). The latest achievements in highly stereoselective hydrogenations have made possible many new applications in organic synthesis. These applications are documented by giving details of the reduction of important unsaturated substrates (alkenes, alkynes, aldehydes and ketones, nitrocompounds, etc.). Hydrogenation in biphasic and phase transfer catalyzed systems is also described. Finally, a discussion of the biochemical routes of H2 activation highlights the similarities and differences in performing hydrogenation in both natural and synthetic systems. For researchers working in the fields of homogeneous catalysis, especially in areas such as pharmaceuticals, plastics and fine chemicals.
