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In Situ Nmr Methods In Catalysis
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Book Synopsis In Situ NMR Methods in Catalysis by : Joachim Bargon
Download or read book In Situ NMR Methods in Catalysis written by Joachim Bargon and published by Springer Science & Business Media. This book was released on 2007-05-15 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achemist,facedwiththeproblemofdeterminingthemechanismofachemical reaction, tries to identify a set of reactions that will account for the observed behavior:Ideally,asmallsetofknownreactionsshoulddescribeingreatdetail exactly what takes place at each stage of a chemical transformation. The fact that many reactions proceed in a stepwise fashion can most convincingly be demonstrated if intermediate species can be isolated and shown to proceed to the same products under otherwise identical reaction conditions. An - termediate is the reaction product of each of these steps, except for the last onethatformsthe?nalproduct. Someintermediatesarestablecompoundsin theirownright;someothers,however,aresoreactivethattheirisolationisnot possible. Occasionally, evidence for the existence of short-lived intermediates may be obtained, in particular by spectroscopic observation. The latter may - low a direct observation or an indirect inference from unusual phenomena occurring in the reaction products during in situ investigations of their c- responding chemical reactions. In NMR spectroscopy, for example, transient emissionandenhanced absorptionlinesmaybeobserved, andoneisinclined to believe that there is a universal and unambiguous reason for their appe- ance. Thisisnotnecessarilythecase,however,sincethisseeminglyidentical phenomenon may have a strikingly different origin: During free radical re- tions,aphenomenoncalledchemicallyinduced dynamicnuclear polarization (CIDNP) may give rise to virtually the same effect as occasionally observed duringhomogeneous(andpossiblyevenheterogeneous)hydrogenations:The latter phenomenon, called parahydrogen-induced polarization (PHIP), has a completely different physical basis. It was ?rst noticed twenty years later than CIDNP and occurs if there is an imbalance of the two spin isomers of symmetric molecules such as dihydrogen when hydrogenating unsaturated compoundsusingappropriatecatalysts. Thesetwoeffects,ifnotdifferentiated properly, can cause misinterpretations of reaction mechanisms, as occurred initially when their different origins had not yet been understood approp- ately.
Book Synopsis NMR Techniques in Catalysis by : Alexis T. Bell
Download or read book NMR Techniques in Catalysis written by Alexis T. Bell and published by CRC Press. This book was released on 2020-07-24 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an overview of the applications of modern solid-state nuclear magnetic resonance (NMR) techniques to the study of catalysts, catalytic processes, species adsorbed on catalysts and systems relevant to heterogeneous catalysis. It characterizes the structure of catalytic materials and surfaces.
Book Synopsis Solid-State NMR in Zeolite Catalysis by : Jun Xu
Download or read book Solid-State NMR in Zeolite Catalysis written by Jun Xu and published by Springer. This book was released on 2019-05-11 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-State NMR Characterization of Heterogeneous Catalysts and Catalytic Reactions provides a comprehensive account of state-of-the-art solid-state NMR techniques and the application of these techniques in heterogeneous catalysts and related catalytic reactions. It includes an introduction to the basic theory of solid-state NMR and various frequently used techniques. Special emphasis is placed on characterizing the framework and pore structure, active site, guest-host interaction, and synthesis mechanisms of heterogeneous catalysts using multinuclear one- and two-dimensional solid-sate NMR spectroscopy. Additionally, various in-situ solid-state NMR techniques and their applications in investigation of the mechanism of industrially important catalytic reactions are also discussed. Both the fundamentals and the latest research results are covered, making the book suitable as a reference guide for both experienced researchers in and newcomers to this field. Feng Deng is a Professor at Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences.
Book Synopsis NMR Techniques in Catalysis by : Alexis T. Bell
Download or read book NMR Techniques in Catalysis written by Alexis T. Bell and published by CRC Press. This book was released on 2020-07-24 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an overview of the applications of modern solid-state nuclear magnetic resonance (NMR) techniques to the study of catalysts, catalytic processes, species adsorbed on catalysts and systems relevant to heterogeneous catalysis. It characterizes the structure of catalytic materials and surfaces.
Book Synopsis NMR and MRI of Electrochemical Energy Storage Materials and Devices by : Yong Yang
Download or read book NMR and MRI of Electrochemical Energy Storage Materials and Devices written by Yong Yang and published by Royal Society of Chemistry. This book was released on 2021-06-17 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy storage material is a hot topic in material science and chemistry. During the past decade, nuclear magnetic resonance (NMR) has emerged as a powerful tool to aid understanding of the working and failing mechanisms of energy storage materials and devices. The aim of this book is to introduce the use of NMR methods for investigating electrochemical storage materials and devices. Presenting a comprehensive overview of NMR spectroscopy and magnetic resonance imaging (MRI) on energy storage materials, the book will include the theory of paramagnetic interactions and relevant calculation methods, a number of specific NMR approaches developed in the past decade for battery materials (e.g. in situ, ex situ NMR, MRI, DNP, 2D NMR, NMR dynamics) and case studies on a variety of related materials. Helping both NMR spectroscopists entering the field of batteries and battery specialists seeking diagnostic methods for material and device degradation, it is written by leading authorities from international research groups in this field.
Book Synopsis In-situ Spectroscopy in Heterogeneous Catalysis by : James F. Haw
Download or read book In-situ Spectroscopy in Heterogeneous Catalysis written by James F. Haw and published by Wiley-VCH Verlag GmbH. This book was released on 2002 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Not using in-situ methods to examine catalytic processes is like studying a life with access only to the prenatal and postmortem states." This quote from the world renowned specialist in the field of in situ methods, Gabor A. Somorjai, clearly emphasizes the importance of these techniques in understanding heterogeneous catalysis - a type of chemical reaction used nowadays for most chemically produced supplies and fuels. Yet the fundamental mechanisms are often still not completely understood. Many of the leading scientists in the field have contributed to this book which provides an overview of the most varied spectroscopic and related methods for studying catalytic structures and their functions during a chemical reaction. While primarily written for users of these methods, this is also a valuable aid to interpreting the phenomena observed. Indispensable for everyone working in the field.
Book Synopsis Characterization of Heterogeneous Catalysts by : Francis Delannay
Download or read book Characterization of Heterogeneous Catalysts written by Francis Delannay and published by Marcel Dekker. This book was released on 1984 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of EPR and NMR Spectroscopy in Homogeneous Catalysis by : Evgenii Talsi
Download or read book Applications of EPR and NMR Spectroscopy in Homogeneous Catalysis written by Evgenii Talsi and published by CRC Press. This book was released on 2017-04-07 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews advances in important and practically relevant homogeneous catalytic transformations, such as single-site olefin polymerizations and chemo- and stereo-selective oxidations. Close attention is paid to the experimental investigation of the active sites of catalytic oxidation systems and their mechanisms. Major subjects include the applications of NMR and EPR spectroscopic techniques and data obtained by other physical methods. The book addresses a broad readership and focus on widespread techniques available in labs with NMR and EPR spectrometers.
Book Synopsis Nuclear Magnetic Resonance by : G. A. Webb
Download or read book Nuclear Magnetic Resonance written by G. A. Webb and published by Royal Society of Chemistry. This book was released on 2009 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: For those wanting to become rapidly acquainted with specific areas of NMR, this title provides unrivalled scope of coverage. Applications of NMR span a wide range of scientific disciplines, from physics to biology to medicine. Each volume in this series comprises a combination of reports offering comprehensive coverage of the literature on this topic. For those wanting to become rapidly acquainted with specific areas of NMR this title provides unrivalled scope of coverage. Seasoned practitioners of NMR will find this an invaluable source of current methods and applications. Reviews include literature published from June 2007 to May 2008.
Book Synopsis Solid State NMR by : Jerry C. C. Chan
Download or read book Solid State NMR written by Jerry C. C. Chan and published by Springer Science & Business Media. This book was released on 2011-10-26 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dipolar Recoupling, by Niels Chr. Nielsen, Lasse A. Strassø and Anders B. Nielsen.- Solid-State NMR Techniques for the Structural Determination of Amyloid Fibrils, by Jerry C. C. Chan.- Solid-State 19F-NMR of Peptides in Native Membranes, by Katja Koch, Sergii Afonin, Marco Ieronimo, Marina Berditsch and Anne S. Ulrich.- Probing Quadrupolar Nuclei by Solid-State NMR Spectroscopy: Recent Advances, by Christian Fernandez and Marek Pruski.- Solid State NMR of Porous Materials Zeolites and Related Materials, by Hubert Koller and Mark Weiß.- Solid-State NMR of Inorganic Semiconductors, by James P. Yesinowski.-
Book Synopsis Isotopes in Heterogeneous Catalysis by : Justin S J Hargreaves
Download or read book Isotopes in Heterogeneous Catalysis written by Justin S J Hargreaves and published by World Scientific. This book was released on 2006-04-11 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to review the current, state-of-the-art application of isotopic methods to the field of heterogeneous catalysis. Isotopic studies are arguably the ultimate technique in in situ methods for heterogeneous catalysis. In this review volume, chapters have been contributed by experts in the field and the coverage includes both the application of specific isotopes — Deuterium, Tritium, Carbon-14, Sulfur-35 and Oxygen-18 – as well as isotopic techniques — determination of surface mobility, steady state transient isotope kinetic analysis, and positron emission profiling. Contents:Deuterium-Labelling in Mechanistic Studies on Heterogeneous Acid-Base Catalysts (J Sommer & S Walspurger)Application of 14C Radiotracer for the Study of Heterogeneous Catalytic Reactions (Z Paál)Use of 35S Radiotracer in Catalytic Studies (P Tétényi)Tritium in Catalysis (J R Jones & S-Y Lu)Isotopic Exchange of Oxygen Over Oxide Surfaces (J S J Hargreaves & I M Mellor)Oxygen and Hydrogen Surface Mobility in Supported Metal Catalysts. Study by 18O/16O and 2H/1H Exchange (D Duprez)Investigation of Reaction at the Site Level Using SSITKA (S Pansare, A Sirijaruphan & J G Goodwin, Jr.)Positron Emission Profiling — The Ammonia Oxidation Reaction as a Case Study (A M de Jong, E J M Hensen & R A van Santen) Readership: Academic and researchers, as well as postgraduate students in catalysis. Key Features:Addresses a unique niche in the market, outlining the breadth and depth of the application of isotopic methodsContributions by internationally leading groups in the area of heterogeneous catalysisOf general global interest without geographical restrictionsKeywords:Heterogeneous Catalysis;Isotopes;Carbon-14;Oxygen-18;Sulfur-35;Deuterium;Tritium;Kinetics
Book Synopsis Characterization of Solid Materials and Heterogeneous Catalysts by : Michel Che
Download or read book Characterization of Solid Materials and Heterogeneous Catalysts written by Michel Che and published by John Wiley & Sons. This book was released on 2012-04-16 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume book provides an overview of physical techniques used to characterize the structure of solid materials, on the one hand, and to investigate the reactivity of their surface, on the other. Therefore this book is a must-have for anyone working in fields related to surface reactivity. Among the latter, and because of its most important industrial impact, catalysis has been used as the directing thread of the book. After the preface and a general introduction to physical techniques by M. Che and J.C. Vedrine, two overviews on physical techniques are presented by G. Ertl and Sir J.M. Thomas for investigating model catalysts and porous catalysts, respectively. The book is organized into four parts: Molecular/Local Spectroscopies, Macroscopic Techniques, Characterization of the Fluid Phase (Gas and/ or Liquid), and Advanced Characterization. Each chapter focuses upon the following important themes: overview of the technique, most important parameters to interpret the experimental data, practical details, applications of the technique, particularly during chemical processes, with its advantages and disadvantages, conclusions.
Book Synopsis Catalytic In-Situ Upgrading of Heavy and Extra-Heavy Crude Oils by : Mikhail A. Varfolomeev
Download or read book Catalytic In-Situ Upgrading of Heavy and Extra-Heavy Crude Oils written by Mikhail A. Varfolomeev and published by John Wiley & Sons. This book was released on 2023-09-25 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to a cutting-edge and cost-effective refinement process for heavy oil Oil sufficiently viscous that it cannot flow normally from production wells is called heavy oil and constitutes as much as 70% of global oil reserves. Extracting and refining this oil can pose significant challenges, including very high transportation costs. As a result, processes which produce and partially refine heavy oil in situ, known as catalytic upgrading, are an increasingly important part of the heavy oil extraction process, and the reduced carbon footprint associated with these methods promises to make them even more significant in the coming years. Catalytic In-Situ Upgrading of Heavy and Extra-Heavy Crude Oils provides a comprehensive introduction to these processes. It introduces the properties and characteristics of heavy and extra-heavy oil before discussing different catalysts and catalyzing processes, their mechanisms and underlying physics, and more. It offers the full sweep of description and analysis required for petroleum and chemical engineers to understand this vital aspect of the modern oil industry. Readers will also find: Detailed discussion of subjects including electron paramagnetic resonance spectroscopy, nuclear magnetic resonance spectroscopy, and more Analysis of both liquid catalysts and nanoparticle catalysts A numerical simulation of the catalytic in-situ oil upgrading process Catalytic In-Situ Upgrading of Heavy and Extra-Heavy Crude Oils is a valuable reference for petroleum and chemical engineers as well as advanced undergraduate and graduate students in related fields.
Book Synopsis Supercritical Fluid Technology in Materials Science and Engineering by : Ya-Ping Sun
Download or read book Supercritical Fluid Technology in Materials Science and Engineering written by Ya-Ping Sun and published by CRC Press. This book was released on 2002-03-26 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title analyzes the chemical reactions, structures and fundamental properties of supercritical fluid systems for the production of new compounds, nanomaterials, fibers, and films. It complies contemporary research and technological advances for increased selectivity and reduced waste in chemical, industrial, pharmaceutical, and biomedical applications. Topics include fluid dynamics, catalysis, hydrothermal synthesis, surfactants, conducting polymers, crystal growth, and other aspects and applications of supercritical fluids.
Book Synopsis Springer Handbook of Advanced Catalyst Characterization by : Israel E. Wachs
Download or read book Springer Handbook of Advanced Catalyst Characterization written by Israel E. Wachs and published by Springer Nature. This book was released on 2023-06-12 with total page 1109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-edited by world-renowned scientists in the field of catalysis, this book contains the cutting-edge in situ and operando spectroscopy characterization techniques operating under reaction conditions to determine a materials’ bulk, surface, and solution complex and their applications in the field of catalysis with emphasis on solid catalysts in powder form since such catalyst are relevant for industrial applications. The handbook covers from widely-used to cutting-edge techniques. The handbook is written for a broad audience of students and professionals who want to pursue the full capabilities available by the current state-of-the-art in characterization to fully understand how their catalysts really operate and guide the rational design of advanced catalysts. Individuals involved in catalysis research will be interested in this handbook because it contains a catalogue of cutting-edge methods employed in characterization of catalysts. These techniques find wide use in applications such as petroleum refining, chemical manufacture, natural gas conversion, pollution control, transportation, power generation, pharmaceuticals and food processing. fdsfds
Download or read book Catalysis written by Gadi Rothenberg and published by John Wiley & Sons. This book was released on 2017-09-06 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the great success now in its 2nd Edition: This textbook covers all aspects of catalysis, including computational methods, industrial applications and green chemistry
Book Synopsis Combinatorial Catalysis and High Throughput Catalyst Design and Testing by : E.G. Derouane
Download or read book Combinatorial Catalysis and High Throughput Catalyst Design and Testing written by E.G. Derouane and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Catalysts are central in modern industrial chemistry and there is an urgent need to develop new catalysts. Such a rapid pace of development brings with it a new set of challenges at all levels of research, from synthesis and characterization to testing and modelling. This book reviews the current status of combinatorial catalysis, scientific catalyst design techniques, methods for preparing inorganic combinatorial libraries, experimental design methods, data processing, system modelling an simulation, and catalyst testing. The individual contributions reveal the development of high throughput catalyst design and test methods and identify the main challenges in the field, including new catalyst preparation techniques, rapid performance evaluation, and new microreactor configurations. Readership: All those working in catalytic process analysis and development. The extensive review of catalysis principles is especially relevant for postgraduate students seeking to pursue studies in catalysis.
