EXAFS: Basic Principles and Data Analysis

EXAFS: Basic Principles and Data Analysis PDF

Author: Boon K. Teo

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 359

ISBN-13: 3642500315

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The phenomenon of Extended X-Ray Absorption Fine Structure (EXAFS) has been known for some time and was first treated theoretically by Kronig in the 1930s. Recent developments, initiated by Sayers, Stern, and Lytle in the early 1970s, have led to the recognition of the structural content of this technique. At the same time, the availability of synchrotron radiation has greatly improved both the acquisition and the quality of the EXAFS data over those obtainable from conventional X-ray sources. Such developments have established EXAFS as a powerful tool for structure studies. EXAFS has been successfully applied to a wide range of significant scientific and technological systems in many diverse fields such as inorganic chemistry, biochemistry, catalysis, material sciences, etc. It is extremely useful for systems where single-crystal diffraction techniques are not readily applicable (e.g., gas, liquid, solution, amorphous and polycrystalline solids, surfaces, polymer, etc.). Despite the fact that the EXAFS technique and applications have matured tremendously over the past decade or so, no introductory textbook exists. EXAFS: Basic Principles and Data Analysis represents my modest attempt to fill such a gap. In this book, I aim to introduce the subject matter to the novice and to help alleviate the confusion in EXAFS data analysis, which, although becoming more and more routine, is still a rather tricky endeavor and may, at times, discourage the beginners.

EXAFS Spectroscopy

EXAFS Spectroscopy PDF

Author: B. K. Teo

Publisher: Springer

Published: 2013-04-17

Total Pages: 272

ISBN-13: 1475712383

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This book on Extended X-Ray Absorption Fine Structure (EXAFS) Spectroscopy grew out of a symposium, with the same title, organized by us at the 1979 Meeting of the Materials Research Society (MRS) in Boston, MA. That meeting provided not only an overview of the theory, instrumentation and practice of EXAFS Spectroscopy as currently employed with photon beams, but also a forum for a valuable dialogue between those using the conventional approach and those breaking fresh ground by using electron energy loss spectroscopy (EELS) for EXAFS studies. This book contains contributions from both of these groups and provides the interested reader with a detailed treatment of all aspects of EXAFS spectroscopy, from the theory, through consideration of the instrumentation for both photon and electron beam purposes, to detailed descriptions of the applications and physical limitations of these techniques. While some of the material was originally presented at the MRS meeting all of the chapters have been specially written for this book and contain much that is new and significant.

Introduction to XAFS

Introduction to XAFS PDF

Author: Grant Bunker

Publisher: Cambridge University Press

Published: 2010-01-28

Total Pages: 269

ISBN-13: 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.

EXAFS and Near Edge Structure

EXAFS and Near Edge Structure PDF

Author: A. Bianconi

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 430

ISBN-13: 3642500986

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The field of X-ray spectroscopy using synchrotron radiation is growing so rapidly and expanding into such different research areas that it is now diffi cult to keep up with the literature. EXAFS and XANES are becoming interdis ciplinary methods used in solid-state physics, biology, and chemistry, and are making impressive contributions to these branches of science. The present book gives a panorama of the research activity in this field. It contains the papers presented at the International Conference on EXAFS and Near Edge Structure held in Frascati, Italy, September 13-17, 1982. This was the first international conference devoted to EXAFS spectroscopy (Extended X-ray Ab sorption Fine Structure) and its applications. The other topic of the con ference was the new XANES (X-ray Absorption Near Edge Structure), which in of experimental and theoretical developments finally appears to have terms left its infancy. The applications of EXAFS concern the determination of local structures in complex systems; we have therefore divided the subject matter into differ ent parts on various types of materials: amorphous metals, glasses, solu tions, biological systems, catalysts, and special crystals such as mixed valence systems and ionic conductors. EXAFS provides unique information for each kind of system, but the analysis of EXAFS data also poses special prob lems in each case. General problems of EXAFS data analysis are discussed, as well as developments in instrumentation for X-ray absorption using syn chrotron radiation and laboratory EXAFS.

EXAFS Spectroscopy

EXAFS Spectroscopy PDF

Author: B. K. Teo

Publisher: Springer

Published: 2012-11-26

Total Pages: 275

ISBN-13: 9781475712391

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This book on Extended X-Ray Absorption Fine Structure (EXAFS) Spectroscopy grew out of a symposium, with the same title, organized by us at the 1979 Meeting of the Materials Research Society (MRS) in Boston, MA. That meeting provided not only an overview of the theory, instrumentation and practice of EXAFS Spectroscopy as currently employed with photon beams, but also a forum for a valuable dialogue between those using the conventional approach and those breaking fresh ground by using electron energy loss spectroscopy (EELS) for EXAFS studies. This book contains contributions from both of these groups and provides the interested reader with a detailed treatment of all aspects of EXAFS spectroscopy, from the theory, through consideration of the instrumentation for both photon and electron beam purposes, to detailed descriptions of the applications and physical limitations of these techniques. While some of the material was originally presented at the MRS meeting all of the chapters have been specially written for this book and contain much that is new and significant.

X-ray Absorption Fine Structure for Catalysts and Surfaces

X-ray Absorption Fine Structure for Catalysts and Surfaces PDF

Author: Yasuhiro Iwasawa

Publisher: World Scientific

Published: 1996

Total Pages: 438

ISBN-13: 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 for Everyone

XAFS for Everyone PDF

Author: Scott Calvin

Publisher: CRC Press

Published: 2013-05-20

Total Pages: 459

ISBN-13: 1439878633

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XAFS for Everyone provides a practical, thorough guide to x-ray absorption fine-structure (XAFS) spectroscopy for both novices and seasoned practitioners from a range of disciplines. The text is enhanced with more than 200 figures as well as cartoon characters who offer informative commentary on the different approaches used in XAFS spectroscopy. The book covers sample preparation, data reduction, tips and tricks for data collection, fingerprinting, linear combination analysis, principal component analysis, and modeling using theoretical standards. It describes both near-edge (XANES) and extended (EXAFS) applications in detail. Examples throughout the text are drawn from diverse areas, including materials science, environmental science, structural biology, catalysis, nanoscience, chemistry, art, and archaeology. In addition, five case studies from the literature demonstrate the use of XAFS principles and analysis in practice. The text includes derivations and sample calculations to foster a deeper comprehension of the results. Whether you are encountering this technique for the first time or looking to hone your craft, this innovative and engaging book gives you insight on implementing XAFS spectroscopy and interpreting XAFS experiments and results. It helps you understand real-world trade-offs and the reasons behind common rules of thumb.

X-ray Absorption Spectroscopy for the Chemical and Materials Sciences

X-ray Absorption Spectroscopy for the Chemical and Materials Sciences PDF

Author: John Evans

Publisher: John Wiley & Sons

Published: 2018-02-05

Total Pages: 222

ISBN-13: 1119990904

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A clear-cut introduction to the technique and applications of x-ray absorption spectroscopy X-ray Absorption Spectroscopy is being applied to a widening set of disciplines. Applications started with solid state physics and grew to materials science, chemistry, biochemistry and geology. Now, they cut across engineering materials, environmental science and national heritage — providing very detailed and useful information facilitating understanding and development of materials. This practical guide helps investigators choose the right experiment, carry it out properly and analyze the data to give the best reliable result. It gives readers insights to extract what they need from the world of large-scale experimental facilities like synchrotrons, which seem distant to many laboratory scientists. X-ray Absorption Spectroscopy for the Chemical and Materials Sciences seeks to educate readers about the strengths and limitations of the techniques, including their accessibility. Presented in six sections, it offers chapters that cover: an introduction to X-ray absorption fine structure XAFS; the basis of XAFS; X-ray sources; experimental methods; data analysis and simulation methods; and case studies. A no-nonsense introduction to the technique and applications of x-ray absorption spectroscopy Features Questions to support learning through the book Relevant to all working on synchrotron sources and applications in physics, materials, environment/geology and biomedical materials Four-color representation allows easy interpretation of images and data for the reader X-ray Absorption Spectroscopy for the Chemical and Materials Sciences is aimed at Masters-level and PhD students embarking on X-ray spectroscopy projects as well as scientists in areas of materials characterization.

X-Ray Absorption and X-Ray Emission Spectroscopy

X-Ray Absorption and X-Ray Emission Spectroscopy PDF

Author: Jeroen A. van Bokhoven

Publisher: John Wiley & Sons

Published: 2016-03-21

Total Pages: 940

ISBN-13: 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

Physical Methods in Bioinorganic Chemistry

Physical Methods in Bioinorganic Chemistry PDF

Author: Lawrence Que

Publisher: Sterling Publishing Company

Published: 2000

Total Pages: 574

ISBN-13: 9781891389023

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This text provides detailed coverage of physical methods used in bioinorganic chemistry. By integrating theory with experimentation, and providing a more biological orientation, the book aims to serve as a major textbook for students of bioinorganic chemistry.