X-ray Absorption Fine Structure for Catalysts and Surfaces

X-ray Absorption Fine Structure for Catalysts and Surfaces
Author: Yasuhiro Iwasawa
Publisher: World Scientific
Total Pages: 438
Release: 1996
Genre: Science
ISBN: 9789810223236

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X-ray absorption fine structure (XAFS) is a powerful technique in characterization of structures and electronic states of materials in many research fields including, e.g., catalysts, semiconductors, optical ingredients, magnetic materials, and surfaces. This characterization technique could be applied in a static or a dynamic state (in-situ condition). The XAFS can provide information that is not accessible by other techniques for characterization of materials, particularly catalysts and related surfaces. Furthermore, XAFS can provide a molecular-level approach to the study of reaction mechanisms for the understanding of catalysts and development of new catalysts. A number of synchrotron radiation facilities have been planned to be built in Asian countries in addition to the high-brilliant synchrotron radiation facilities under construction in the USA, Europe, and Japan. The applications of XAFS have now expanded to catalytic chemistry and engineering, surface science, organometallic chemistry, materials science, solid-state chemistry, geophysics, etc. This book caters to a wide range of researchers and students working in the domain or related topics.

XAFS Techniques for Catalysts, Nanomaterials, and Surfaces

XAFS Techniques for Catalysts, Nanomaterials, and Surfaces
Author: Yasuhiro Iwasawa
Publisher: Springer
Total Pages: 545
Release: 2016-10-19
Genre: Science
ISBN: 3319438662

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This book is a comprehensive, theoretical, practical, and thorough guide to XAFS spectroscopy. The book addresses XAFS fundamentals such as experiments, theory and data analysis, advanced XAFS methods such as operando XAFS, time-resolved XAFS, spatially resolved XAFS, total-reflection XAFS, high energy resolution XAFS, and practical applications to a variety of catalysts, nanomaterials and surfaces. This book is accessible to a broad audience in academia and industry, and will be a useful guide for researchers entering the subject and graduate students in a wide variety of disciplines.

In-situ Characterization of Heterogeneous Catalysts

In-situ Characterization of Heterogeneous Catalysts
Author: José A. Rodriguez
Publisher: John Wiley & Sons
Total Pages: 488
Release: 2013-04-17
Genre: Science
ISBN: 1118355911

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Helps researchers develop new catalysts for sustainable fueland chemical production Reviewing the latest developments in the field, this bookexplores the in-situ characterization of heterogeneous catalysts,enabling readers to take full advantage of the sophisticatedtechniques used to study heterogeneous catalysts and reactionmechanisms. In using these techniques, readers can learn to improvethe selectivity and the performance of catalysts and how to preparecatalysts as efficiently as possible, with minimum waste. In-situ Characterization of Heterogeneous Catalysts featurescontributions from leading experts in the field of catalysis. Itbegins with an introduction to the fundamentals and thencovers: Characterization of electronic and structural properties ofcatalysts using X-ray absorption fine structure spectroscopy Techniques for structural characterization based on X-raydiffraction, neutron scattering, and pair distribution functionanalysis Microscopy and morphological studies Techniques for studying the interaction of adsorbates withcatalyst surfaces, including infrared spectroscopy, Ramanspectroscopy, EPR, and moderate pressure XPS Integration of techniques that provide information on thestructural properties of catalysts with techniques that facilitatethe study of surface reactions Throughout the book, detailed examples illustrate how techniquesfor studying catalysts and reaction mechanisms can be applied tosolve a broad range of problems in heterogeneous catalysis.Detailed figures help readers better understand how and why thetechniques discussed in the book work. At the end of each chapter,an extensive set of references leads to the primary literature inthe field. By explaining step by step modern techniques for the in-situcharacterization of heterogeneous catalysts, this book enableschemical scientists and engineers to better understand catalystbehavior and design new catalysts for green, sustainable fuel andchemical production.

High-Resolution XAS/XES

High-Resolution XAS/XES
Author: Jacinto Sa
Publisher: CRC Press
Total Pages: 252
Release: 2014-07-14
Genre: Technology & Engineering
ISBN: 1466592982

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Photon-in-photon-out core level spectroscopy is an emerging approach to characterize the electronic structure of catalysts and enzymes, and it is either installed or planned for intense synchrotron beam lines and X-ray free electron lasers. This type of spectroscopy requires high-energy resolution spectroscopy not only for the incoming X-ray beam but also, in most applications, for the detection of the outgoing photons. Thus, the use of high-resolution X-ray crystal spectrometers whose resolving power ΔE/E is typically about 10–4, is mandatory. High-Resolution XAS/XES: Analyzing Electronic Structures of Catalysts covers the latest developments in X-ray light sources, detectors, crystal spectrometers, and photon-in-photon-out core level spectroscopy techniques. It also addresses photon-in-photon-out core level spectroscopy applications for the study of catalytic systems, highlighting hard X-ray measurements primarily due to probe high penetration, enabling in situ studies. This first-of-its-kind book: Discusses high-resolution X-ray emission spectroscopy (XES) and X-ray absorption spectroscopy (XAS) in terms of time-resolved and surface enhancement Supplies an understanding of catalytic reactivity essential for capitalizing on core level X-ray spectroscopy at fourth-generation light sources (XFELs) Describes all spectrometers developed to perform core level X-ray spectroscopy, considering the advantages and disadvantages of each Details methods to elucidate aspects of catalysts under working conditions, such as active sites and molecule adsorption Introduces theoretical calculations of spectra and explores biological as well as heterogeneous catalysts Complete with guidelines and warnings for the use of this type of spectroscopy, High-Resolution XAS/XES: Analyzing Electronic Structures of Catalysts provides a comprehensive overview of the current state of this exciting field.

Introduction to XAFS

Introduction to XAFS
Author: Grant Bunker
Publisher: Cambridge University Press
Total Pages: 269
Release: 2010-01-28
Genre: Science
ISBN: 1139485091

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X-ray absorption fine structure spectroscopy (XAFS) is a powerful and versatile technique for studying structures of materials in chemistry, physics, biology and other fields. This textbook is a comprehensive, practical guide to carrying out and interpreting XAFS experiments. Assuming only undergraduate-level physics and mathematics, the textbook is ideally suited for graduate students in physics and chemistry starting XAFS-based research. It contains concise executable example programs in Mathematica 7. Supplementary material available at www.cambridge.org/9780521767750 includes Mathematica code from the book, related Mathematica programs, and worked data analysis examples. The textbook addresses experiment, theory, and data analysis, but is not tied to specific data analysis programs or philosophies. This makes it accessible to a broad audience in the sciences, and a useful guide for researchers entering the subject.

X-Ray Absorption Fine Structure -- XAFS13

X-Ray Absorption Fine Structure -- XAFS13
Author: Britt Hedman
Publisher: American Institute of Physics
Total Pages: 968
Release: 2007-03-09
Genre: Science
ISBN: 9780735403840

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The scope of this Conference was X-ray Absorption Fine Structure (XAFS) and related techniques and topics using synchrotron radiation. Many techniques and theories focusing on XAFS-related phenomena are presented. These techniques are used in many scientific areas to study electronic and real space structure of a multitude of materials.

Nanotechnology in Catalysis

Nanotechnology in Catalysis
Author: Bert Sels
Publisher: John Wiley & Sons
Total Pages: 1500
Release: 2017-06-21
Genre: Technology & Engineering
ISBN: 3527699813

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Reflecting the R&D efforts in the field that have resulted in a plethora of novel applications over the past decade, this handbook gives a comprehensive overview of the tangible benefits of nanotechnology in catalysis. By bridging fundamental research and industrial development, it provides a unique perspective on this scientifically and economically important field. While the first three parts are devoted to preparation and characterization of nanocatalysts, the final three provide in-depth insights into their applications in the fine chemicals industry, the energy industry, and for environmental protection, with expert authors reporting on real-life applications that are on the brink of commercialization. Timely reading for catalytic chemists, materials scientists, chemists in industry, and process engineers.

X-Ray Absorption and X-Ray Emission Spectroscopy

X-Ray Absorption and X-Ray Emission Spectroscopy
Author: Jeroen A. van Bokhoven
Publisher: John Wiley & Sons
Total Pages: 940
Release: 2016-03-21
Genre: Science
ISBN: 1118844238

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During the last two decades, remarkable and often spectacular progress has been made in the methodological and instrumental aspects of x–ray absorption and emission spectroscopy. This progress includes considerable technological improvements in the design and production of detectors especially with the development and expansion of large-scale synchrotron reactors All this has resulted in improved analytical performance and new applications, as well as in the perspective of a dramatic enhancement in the potential of x–ray based analysis techniques for the near future. This comprehensive two-volume treatise features articles that explain the phenomena and describe examples of X–ray absorption and emission applications in several fields, including chemistry, biochemistry, catalysis, amorphous and liquid systems, synchrotron radiation, and surface phenomena. Contributors explain the underlying theory, how to set up X–ray absorption experiments, and how to analyze the details of the resulting spectra. X-Ray Absorption and X-ray Emission Spectroscopy: Theory and Applications: Combines the theory, instrumentation and applications of x-ray absorption and emission spectroscopies which offer unique diagnostics to study almost any object in the Universe. Is the go-to reference book in the subject for all researchers across multi-disciplines since intense beams from modern sources have revolutionized x-ray science in recent years Is relevant to students, postdocurates and researchers working on x-rays and related synchrotron sources and applications in materials, physics, medicine, environment/geology, and biomedical materials

Spectroscopy for Surface Science

Spectroscopy for Surface Science
Author: R. J. H. Clark
Publisher: John Wiley & Sons
Total Pages: 426
Release: 1998-03-06
Genre: Science
ISBN: 9780471974239

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Dieser neueste Titel einer seit langem etablierten Reihe bietet eine Fülle von Informationen zu den aktuellsten Neuerungen auf dem Gebiet der Oberflächenspektroskopie. Geschrieben für den Experten, ist der Text jedoch auch für Fachleute angrenzender Gebiete verständlich gestaltet. Alle vorgestellten Verfahren werden kritisch bewertet und in die internationale Entwicklung eingeordnet. (02/98)