Spectroscopy Of Transition Metal Ions On Surfaces

Author : Bert M. Weckhuysen,Pascal Voort,Gabriela Catana
Publisher : Leuven University Press
Page : 312 pages
File Size : 48,9 Mb
Release : 2000
Category : Science
ISBN : 9058670252

Get Book

Spectroscopy of Transition Metal Ions on Surfaces by Bert M. Weckhuysen,Pascal Voort,Gabriela Catana Pdf

Chemical industries are based on catalytic processes as both bulk and fine chemicals are often produced with heterogeneous catalysts. Transition metal ions dispersed on high-surface area inorganic solids are very important catalysts and a full characterization of these materials requires a profound knowledge of the oxidation state, coordination environment and dispersion of the metal ions on the catalyst surface. Such information can only be obtained by using a combination of complementary spectroscopic techniques. 'Spectroscopy of Transition metal ions on Surfaces' serves as an introduction to some of the most important spectroscopic techniques nowadays used for studying the chemistry and catalytic properties of transition metal ions on surfaces. The basic principles and the strengths and weaknesses of continuous wave electron spin resonance, pulsed electron spin resonance, solid state nuclear magnetic resonance, infrared spectroscopy, Raman spectroscopy, diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy are critically reviewed by internationally recognized experts. This gives the reader a solid background for judging literature results and for planning and conducting his/her own experiments. Each chapter closes with several relevant examples mainly from the recent literature. In addition, the use of in situ techniques and chemometrical techniques has been included because of its growing importance in catalyst characterization. As a consequence, the book has been written as a text not only for graduate students, but also for anyone else who is new in the field and wants a recent update. The following scientists have contributed to this textbook: Br.

Author : Anatoli Davydov
Publisher : Unknown
Page : 272 pages
File Size : 49,8 Mb
Release : 1990-10-11
Category : Science
ISBN : UCAL:B5183580

Get Book

Infrared Spectroscopy of Adsorbed Species on the Surface of Transition Metal Oxides by Anatoli Davydov Pdf

Included here is a summary of findings made by the author from infrared investigations of the surface chemistry of simple and complex oxide catalysts. The focus is on spectral characteristics of active sites on oxide surfaces, namely hydroxyl groups, coordinatively unsaturated cations, and surface oxygen. There is a detailed account of the method used for characterizing the oxidation state and coordination of cations on oxide surfaces by the adsorption of probe molecules. In addition, the role played by surface sites in surface-molecule adsorption is used to organize and classify data relating to the interaction of carbon, nitrogen, ammonia, and alkenes with surfaces of transition metal oxides and with supported or mixed oxides containing transition metal cations.

Author : Bärbel Fromme
Publisher : Springer
Page : 156 pages
File Size : 54,7 Mb
Release : 2007-08-03
Category : Technology & Engineering
ISBN : 9783540453420

Get Book

d-d Excitations in Transition-Metal Oxides by Bärbel Fromme Pdf

In this monograph, investigations of the electronic structures of the transition-metal oxides MnO, CoO, and NiO with spin-polarized electron energy-loss spectroscopy are presented and compared with other experimental and theoretical results. After a review of the present knowledge of the electronic structure of the monoxides, the spectroscopic method applied and its special advantages are described. The knowledge and use of the different spin, angle, and primary-energy dependences of the various relevant inelastic electron-scattering mechanisms provide new insights into the excitation processes of the optically forbidden transitions between the crystal-field-split 3d states of the bulk and of the surface.

Author : Mikhail G. Brik,Ma Chong-Geng
Publisher : CRC Press
Page : 462 pages
File Size : 53,5 Mb
Release : 2019-12-11
Category : Science
ISBN : 9781000000733

Get Book

Theoretical Spectroscopy of Transition Metal and Rare Earth Ions by Mikhail G. Brik,Ma Chong-Geng Pdf

This book describes in detail the main concepts of theoretical spectroscopy of transition metal and rare-earth ions. It shows how the energy levels of different electron configurations are formed and calculated for the ions in a free state and in crystals, how group theory can help in solving main spectroscopic problems, and how the modern DFT-based methods of calculations of electronic structure can be combined with the semi-empirical crystal field models. The style of presentation makes the book helpful for a wide audience ranging from graduate students to experienced researchers. Performance of optical materials crucially depends on the impurity ions intentionally introduced into the crystalline host materials. The color of these materials, their emission and absorption spectra can be understood by analyzing the relations between the electronic properties of impurity ions and host crystal structure, which constitutes the main content of this book. It describes in detail the main concepts of theoretical spectroscopy of transition metal and rare earth ions.

Author : R. Vanselow,R. Howe
Publisher : Springer Science & Business Media
Page : 569 pages
File Size : 46,5 Mb
Release : 2013-11-21
Category : Technology & Engineering
ISBN : 9783642822537

Get Book

Chemistry and Physics of Solid Surfaces V by R. Vanselow,R. Howe Pdf

This volume contains review articles which were written by the invited speak ers of the Sixth International Summer Institute in Surface Science (ISISS), held at the University of Wisconsin-Milwaukee in August 1983. The objective of ISISS is to bring together a group of internationally recognized experts on various aspects of surface science to present tutorial review lectures over a period of one week. Each speaker is asked, in addi tion, to write a review paper on his lecture topic. The collected articles from previous Institutes have been published under the following titles: Surface Science: Recent Progress and Perspectives, Crit. Rev. Solid State Sci. 4, 124-559 (1974). Chemistry and Physics of Solid Surfaces, Vol. I (1976), Vol. II (1979), Vol. III (1982) (CRC Press, Boca Raton, FL), and Vol. IV (1982), Springer Ser. Chern. Phys. , Vol. 20 (Springer-Verlag Berlin, Heidelberg, New York 1982) No single collection of reviews (or one-week conference for that matter) can possibly cover the entire field of modern surface science, from heter ogeneous catalysis through semiconductor surface physics to metallurgy. It is intended, however, that the series Chemistry and Physics ofSolid Sur faces as a whole should provide experts and students alike with a comprehen ve set of reviews and literature references on as many aspects of the subject as possible, particular emphasis being placed on the gas-solid interface. Each volume is introduced with a historical review of the devel opment of one aspect of surface science by a distinguished participant in that development.

Author : Anatoliĭ Aleksandrovich Davydov
Publisher : Unknown
Page : 243 pages
File Size : 52,9 Mb
Release : 1984
Category : Electronic
ISBN : OCLC:37307513

Get Book

Infrared Spectroscopy of Adsorbed Species on the Surface of Transition Metal Oxides by Anatoliĭ Aleksandrovich Davydov Pdf

Author : H.H. Kung
Publisher : Elsevier
Page : 281 pages
File Size : 47,7 Mb
Release : 1989-04-01
Category : Technology & Engineering
ISBN : 0080887422

Get Book

Transition Metal Oxides by H.H. Kung Pdf

In this book the author presents an up-to-date summary of existing information on the structure, electronic properties, chemistry and catalytic properties of transition metal oxides. The subjects covered in the book can be divided into three sections. The first (chapters 1 to 3) covers the structural, physical, magnetic, and electronic properties of transition metal oxides. Although the emphasis is on surface properties, relevant bulk properties are also discussed. The second section (chapters 4 to 7) covers surface chemical properties. It includes topics that describe the importance of surface coordinative unsaturation in adsorption, the formation of surface acidity and the role of acidity in determining surface chemical properties, the nature and reactivities of adsorbed oxygen, and the surface chemistry in the reduction of oxides. The third section (chapters 8 to 14) is on the catalytic properties. Various catalytic reactions including decomposition, hydrogenation, isomerization, metathesis, selective oxidation, and reactions involving carbon oxides are discussed. Emphasis is placed more on reaction mechanisms and the role of catalysts than on kinetics and processes. Chapters on the preparation of oxide catalysts and on photo-assisted processes are also included. Whenever appropriate, relationships between various topics are indicated. Written for surface physicists, chemists, and catalytic engineers, the book will serve as a useful source of information for investigators and as a comprehensive overview of the subject for graduate students.

Author : Anonim
Publisher : Academic Press
Page : 8607 pages
File Size : 52,7 Mb
Release : 2010-04-09
Category : Science
ISBN : 9780080922171

Get Book

Encyclopedia of Spectroscopy and Spectrometry by Anonim Pdf

The Second Edition of the Encyclopedia of Spectroscopy and Spectrometry pulls key information into a single source for quick access to answers and/or in-depth examination of topics. "SPEC-2" covers theory, methods, and applications for researchers, students, and professionals—combining proven techniques and new insights for comprehensive coverage of the field. The content is available in print and online via ScienceDirect, the latter of which offers optimal flexibility, accessibility, and usability through anytime, anywhere access for multiple users and superior search functionality. No other work gives analytical and physical (bio)chemists such unprecedented access to the literature. With 30% new content, SPEC-2 maintains the "authoritative, balanced coverage" of the original work while also breaking new ground in spectroscopic research. Incorporates more than 150 color figures, 5,000 references, and 300 articles (30% of which are new), for a thorough examination of the field Highlights new research and promotes innovation in applied areas ranging from food science and forensics to biomedicine and health Features a new co-editor: David Koppenaal of Pacific Northwest National Laboratory, Washington, USA, whose work in atomic mass spectrometry has been recognized internationally

Author : Mikhail G. Brik
Publisher : Unknown
Page : 446 pages
File Size : 51,6 Mb
Release : 2020-01-23
Category : Rare earth ions
ISBN : 9814800562

Get Book

Theoretical Spectroscopy of Transition Metal and Rare Earth Ions by Mikhail G. Brik Pdf

This book describes in detail the main concepts of theoretical spectroscopy of transition metal and rare-earth ions. It shows how the energy levels of different electron configurations are formed and calculated for the ions in a free state and in crystals, how group theory can help in solving main spectroscopic problems, and how the modern DFT-based methods of calculations of electronic structure can be combined with the semi-empirical crystal field models. The style of presentation makes the book helpful for a wide audience ranging from graduate students to experienced researchers. Performance of optical materials crucially depends on the impurity ions intentionally introduced into the crystalline host materials. The color of these materials, their emission and absorption spectra can be understood by analyzing the relations between the electronic properties of impurity ions and host crystal structure, which constitutes the main content of this book. It describes in detail the main concepts of theoretical spectroscopy of transition metal and rare earth ions.

Author : Y. Iwasawa
Publisher : Springer Science & Business Media
Page : 343 pages
File Size : 52,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400952614

Get Book

Tailored Metal Catalysts by Y. Iwasawa Pdf

Author : W Delgass
Publisher : Elsevier
Page : 352 pages
File Size : 47,9 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323154697

Get Book

Spectroscopy in Heterogeneous Catalysis by W Delgass Pdf

Spectroscopy in Heterogeneous Catalysis deals with the applications of spectroscopy in heterogeneous catalysis. The concepts and capabilities of a particular technique, experimental procedures, and examples of all proven or potentially important applications are discussed. The use of spectroscopic measurements in guiding empirical approaches to applied problems and to fundamental studies of the chemical identity of catalytic surfaces is also described. This book is comprised of eight chapters and begins with a discussion on the scope of spectroscopy in catalysis and applications of spectroscopy to zeolite catalysts. The following chapters focus on infrared spectroscopy, with emphasis on the theory and interpretation of infrared spectra; Raman spectroscopy and the theory of the Raman effect; diffuse reflectance and photoacoustic spectroscopies; and Mössbauer spectroscopy. Electron spin resonance spectroscopy and nuclear magnetic resonance spectroscopy are also considered. The final chapter is devoted to X-ray photoelectron spectroscopy (XPS) and its application to core electrons, along with the experimental equipment and procedures used. The applications of XPS to studies of surface behavior and catalyst composition and chemistry are outlined. This monograph will be a useful resource for physicists, researchers, and potential researchers in heterogeneous catalysis.

Author : Ralf Vanselow,Russell F. Howe
Publisher : Springer Science & Business Media
Page : 626 pages
File Size : 47,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642739026

Get Book

Chemistry and Physics of Solid Surfaces VII by Ralf Vanselow,Russell F. Howe Pdf

This volume contains review articles written by the invited speakers at the eighth International Summer Institute in Surface Science (ISISS 1987), held at the University of Wisconsin-Milwaukee in August of 1987. During the course of ISISS, invited speakers, all internationally recognized experts in the various fields of surface science, present tutorial review lectures. In addition, these experts are asked to write review articles on their lecture topic. Former ISISS speakers serve as advisors concerning the selection of speakers and lecture topics. Em phasis is given to those areas which have not been covered in depth by recent Summer Institutes, as well as to areas which have recently gained in significance and in which important progress has been made. Because of space limitations, no individual volume of Chemistry and Physics of Solid Surfaces can possibly cover the whole area of modem surface science, or even give a complete survey of recent pro gress in the field. However, an attempt is made to present a balanced overview in the series as a whole. With its comprehensive literature references and extensive subject indices, this series has become a valu able resource for experts and students alike. The collected articles, which stress particularly the gas-solid interface, have been published under the following titles: Surface Science: Recent Progress and Perspectives, Crit. Rev. Solid State Sci. 4, 125-559 (1974) Chemistry and Physics of Solid Surfaces, Vols. I, II, and III (CRC Press Boca Raton, FL 1976, 1979, and 1982); Vols.

Author : Ralf Vanselow,Russell Howe
Publisher : Springer Science & Business Media
Page : 667 pages
File Size : 41,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642827273

Get Book

Chemistry and Physics of Solid Surfaces VI by Ralf Vanselow,Russell Howe Pdf

This volume contains review articles which were written by the invited speak ers of the seventh International Summer Institute in Surface Science (ISISS), held at the University of Wisconsin - Milwaukee in July 1985. The form of ISISS is a set of tutorial review lectures presented over a one-week period by internationally recognized experts on various aspects of surface science. Each speaker is asked, in addition, to write a review article on his lecture topic. No single volume in the series Chemistry and Physics of Solid Surfaces can possibly cover the entire field of modern surface science. However, the series as a whole is intended to provide experts and students alike with a comprehensive set of reviews and literature references, particularly empha sizing the gas-solid interface. The collected articles from previous Summer Institutes have been published under the following titles: Surface Science: Recent Progress and Perspectives, Crit. Rev. Solid State Sci. 4, 125-559 (1974) Chemistry and Physics of Solid Surfaces, Vols. I, II, and III (CRC Press, Boca Raton, FL 1976, 1979 and 1982), Vols. IV and V, Springer Ser. Chern. Phys., Vols. 20 and 35, (Springer, Berlin, Heidelberg 1982 and 1984). The field of catalysis, which has provided the major impetus for the de velopment of modern surface science, lost two of its pioneers during 1984 and 1985: Professors G.-M. Schwab (1899-1984) and p.k. Emmett (1900-1985).

Author : K. Sridharan
Publisher : Elsevier
Page : 202 pages
File Size : 50,9 Mb
Release : 2016-02-13
Category : Science
ISBN : 9780128096543

Get Book

Spectral Methods in Transition Metal Complexes by K. Sridharan Pdf

Spectral Methods in Transition Metal Complexes provides a conceptual understanding on how to interpret the optical UV-vis, vibrational EPR, and NMR spectroscopy of transition metal complexes. Metal complexes have broad applications across chemistry in the areas of drug discovery, such as anticancer drugs, sensors, special materials for specific requirements, and catalysis, so a thorough knowledge in preparation and characterization of metal complexes, while niche, is critical. Accessible to both the seasoned researcher and the graduate student alike, this book provides readers with a single source of content that addresses spectral methods in transition metal complexes. Provides readers with a single reference on metal complexes and coordination compounds Contains more than 100 figures, tables, and illustrations to aid in the retention of key concepts Authored by a scientist with nearly 40 years of experience in research and instruction

Author : A. Lund,C.J. Rhodes
Publisher : Springer Science & Business Media
Page : 319 pages
File Size : 53,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401104937

Get Book

Radicals on Surfaces by A. Lund,C.J. Rhodes Pdf

Studies of free radicals on surfaces are of interest for several reasons: the spontaneous or stimulated formation of radicals from adsorbed molecules may represent one possible mechanism for heterogeneous catalysis. In some cases the radicals are ionic, indicating that primary oxidation and reduction reactions occur. Radicals can also be used as probes to investigate diffusion processes on catalytic surfaces. The first direct observations were made more than 30 years ago, but detailed studies of structure, reactions and mobility have only recently become feasible with the advent of powerful spectroscopic techniques, to a great extent developed and used by the contributors to this volume. This comprehensive review describes new trends in the field. Leading experts write about the nature of surface active sites, methods to identify them, and the radicals formed from adsorbed molecules interacting with the surface. The emphasis is on the fundamentals covering thermal, photostimulated and radiation induced reactions as well as diffusion processes. This provides the necessary background for technological applications. This book will be useful to those who are interested in surface chemistry, heterogeneous catalysis as well as those who want to study reactive intermediates in chemical reactions. It is also of interest to scientists in photo and radiation physics and chemistry.