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Development Of Resonant Inelastic X Ray Scattering And Spectroscopy For 4d And 5d Transition Metal Catalysts
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Book Synopsis Development of Resonant Inelastic X-ray Scattering and Spectroscopy for 4d and 5d Transition Metal Catalysts by : Rowena Thomas
Download or read book Development of Resonant Inelastic X-ray Scattering and Spectroscopy for 4d and 5d Transition Metal Catalysts written by Rowena Thomas and published by . This book was released on 2013 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Resonant Inelastic X-ray Metal Catalysts Scattering Spectroscopy for 4d and 5d Transition Metal Catalysts by : Rowena Thomas
Download or read book Development of Resonant Inelastic X-ray Metal Catalysts Scattering Spectroscopy for 4d and 5d Transition Metal Catalysts written by Rowena Thomas and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Resonant Inelastic X-ray Scattering Spectroscopy by : Sarah Hobbs
Download or read book Development of Resonant Inelastic X-ray Scattering Spectroscopy written by Sarah Hobbs and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focuses on the development of Resonant Inelastic X-ray Scattering spectroscopy (RIXS) as a tool in homogeneous catalysis by looking at 3d transition metal compounds and specifically Cr(salen) epoxidation catalysts. Previous studies have demonstrated the sensitivity of transition metal K-edge X-ray absorption pre-edge and edge features to their chemical environment, but the exact origins are unassigned. The aim of this study is to bring together a collection of complementary, and some novel, X-ray techniques to assign these features and obtain more detailed structural and electronic information on the systems under investigation. Novel high energy resolution data on transition metal complexes have been obtained and the pre-edge region has been simulated with the FEFF9 multiple scattering code. The increase in spectral structure compared to normal XANES allows for a more detailed analysis and as such, provides detailed insights in the electronic properties. L-edge XAS data obtained using soft X-rays enabled the determination of crystal field parameters, which were compared with other X-ray (RIXS) and optical absorption techniques. The novel RIXS experiments provide L and K-edge spectra unaffected by lifetime broadening or background from the main absorption edge. 2D images of X-ray emission as a function of absorption are obtained, revealing the relationship between them and providing direct and detailed information on the presence and position of molecular orbitals. These 1s2p RIXS experiments make use of hard X-rays enabling in-situ experiments, which are important in the field of catalysis, making it a promising tool to monitor the changing electronics of the metal centre as well as ligand coordination during the catalytic process. Whereas the electronic differences on the Cr metal as a function of salen ligand are not revealed by the current RIXS experiments, which is likely due to resolution issues, new preliminary insights in the different catalytic Cr intermediates of the epoxidation reaction have been obtained.
Book Synopsis Development and Application of Resonant Inelastic X-ray Scattering Spectroscopy in Inorganic Chemistry by : Anselm Wolfgang Hahn
Download or read book Development and Application of Resonant Inelastic X-ray Scattering Spectroscopy in Inorganic Chemistry written by Anselm Wolfgang Hahn and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-Resolution XAS/XES by : Jacinto Sa
Download or read book High-Resolution XAS/XES written by Jacinto Sa and published by CRC Press. This book was released on 2014-07-14 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Stimulated Resonant Inelastic X-ray Scattering in Transition Metal Systems by : Markus Hantschmann
Download or read book Stimulated Resonant Inelastic X-ray Scattering in Transition Metal Systems written by Markus Hantschmann and published by . This book was released on 2023* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the implementation of intense, short pulsed light sources throughout the last years, the powerful technique of resonant inelastic X-ray scattering (RIXS) became feasible for a wide range of experiments within femtosecond dynamics in correlated materials and molecules. In this thesis I investigate the potential to bring RIXS into the fluence regime of nonlinear X-ray-matter interactions, especially focusing on the impact of stimulated scattering on RIXS in transition metal systems in a transmission spectroscopy geometry around transition metal L-edges. After presenting the RIXS toolbox and the capabilities of free electron laser light sources for ultrafast intense X-ray experiments, the thesis explores an experiment designed to understand the impact of stimulated scattering on diffraction and direct beam transmission spectroscopy on a CoPd multilayer system. The experiments require short X-ray pulses that can only be generated at free electron lasers (FEL). Here the pulses are not only short, but also very intense, which opens ...
Book Synopsis Resonant Inelastic X-Ray Scattering and Magnetic Circular Dichroism from 3d Transition Metals by : Paolo Ferriani
Download or read book Resonant Inelastic X-Ray Scattering and Magnetic Circular Dichroism from 3d Transition Metals written by Paolo Ferriani and published by . This book was released on 2003 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization and Catalyst Development by : Steven A. Bradley
Download or read book Characterization and Catalyst Development written by Steven A. Bradley and published by . This book was released on 1989 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This "must-have" volume bridges the gap between catalysis science and development. It is targeted toward the catalyst scientist who needs to understand the characterization techniques as they apply to catalysts, and toward the instrumentalists who must recognize the characterization requirements of the catalyst scientist. It is the first volume to demonstrate the integrative approach for developing new catalysts, improving processes, and understanding catalysis science.
Book Synopsis Resonant X-Ray Scattering in Correlated Systems by : Youichi Murakami
Download or read book Resonant X-Ray Scattering in Correlated Systems written by Youichi Murakami and published by Springer. This book was released on 2017-01-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research and its outcomes presented here is devoted to the use of x-ray scattering to study correlated electron systems and magnetism. Different x-ray based methods are provided to analyze three dimensional electron systems and the structure of transition-metal oxides. Finally the observation of multipole orderings with x-ray diffraction is shown.
Book Synopsis Lattice, Spin and Orbital Excitations in Selected Transition Metal Oxides by : Sara Fatale
Download or read book Lattice, Spin and Orbital Excitations in Selected Transition Metal Oxides written by Sara Fatale and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mots-clés de l'autrice: RIXS ; transition metal oxides ; strong correlation ; ferroelectricity ; BaTiO3 ; electron-phonon coupling ; high-Tc superconductivity ; cuprates ; La(2-x)SrxCuO4 ; Ba2Cu3O4Cl2.
Book Synopsis X-ray Absorption Fine Structure For Catalysts And Surfaces by : Yasuhiro Iwasawa
Download or read book X-ray Absorption Fine Structure For Catalysts And Surfaces written by Yasuhiro Iwasawa and published by World Scientific. This book was released on 1996-05-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis X-ray Scattering from Semiconductors by : Paul F. Fewster
Download or read book X-ray Scattering from Semiconductors written by Paul F. Fewster and published by World Scientific. This book was released on 2000 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray scattering is used extensively to provide detailed structural information about materials. Semiconductors have benefited from X-ray scattering techniques as an essential feedback method for crystal growth, including compositional and thickness determination of thin layers. The methods have been developed to reveal very detailed structural information concerning material quality, interface structure, relaxation, defects, surface damage, and more.
Book Synopsis Inelastic X-Ray Scattering as a Probe of the Transition Between the Hydrodynamic and the Single Particle Regimes in Simple Fluids by : Alessandro Cunsolo
Download or read book Inelastic X-Ray Scattering as a Probe of the Transition Between the Hydrodynamic and the Single Particle Regimes in Simple Fluids written by Alessandro Cunsolo and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last few decades, the study of the spectrum of density fluctuations in fluids at the transition from the continuous to the single particle regimes has attracted an increasing interest. Although the shape of the spectrum is well known in these two extreme limits, no theory firmly predicts its evolution in the broad crossover region. However, the development of inelastic X-ray scattering (IXS) has substantially expanded the potentialities of modern spectroscopy, thus, providing an unprecedented detailed mapping of such a crossover. A better understanding of the line-shape evolution in this intermediate regime is deemed to improve our knowledge of all dynamical processes occurring in a fluid from macroscopic to microscopic scales. The aim of this chapter is to review some relevant experimental contributions brought about by IXS in this field since its development toward the end of past millennium.
Book Synopsis Resonant Inelastic X-ray Scattering in Nd2CuO4 by : J. P. Hill...
Download or read book Resonant Inelastic X-ray Scattering in Nd2CuO4 written by J. P. Hill... and published by . This book was released on 1998 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Anomalous X-Ray Scattering for Materials Characterization by : Yoshio Waseda
Download or read book Anomalous X-Ray Scattering for Materials Characterization written by Yoshio Waseda and published by Springer Science & Business Media. This book was released on 2002-09-11 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of multi layered thin films with sufficient reliability is a key technology for device fabrication in micro electronics. In the Co/Cu type multi layers, for example, magnetoresistance has been found as large as 80 % at 4. 2 K and 50 % at room temperature. In addition to such gigantic mag netoresistance, these multi layers indicate anti ferromagnetic and ferromag netic oscillation behavior with an increase in the thickness of the layers of the non magnetic component. These interesting properties of the new synthetic flmctional materials are attributed to their periodic and interracial structures at a microscopic level, although the origin of such peculiar features is not fully understood. Information on the surface structure or the number density of atoms in the near surface region may provide better insight. Amorphous alloys, frequently referred to as metallic glasses, are produced by rapid quenching from the melt. The second generation amorphous alloys, called "bulk amorphous alloys", have been discovered in some Pd based and Zr based alloy systems, with a super cooled liquid region at more than 120 K. In these alloy systems, one can obtain a sample thickness of several centime ters. Growing scientific and technological curiosity about the new amorphous alloys has focused on the fundamental factors, such as the atomic scale struc ture, which are responsible for the thermal stability with certain chemical compositions.
Book Synopsis Core Level Spectroscopy of Solids by : Frank de Groot
Download or read book Core Level Spectroscopy of Solids written by Frank de Groot and published by CRC Press. This book was released on 2008-03-10 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Core level spectroscopy has become a powerful tool in the study of electronic states in solids. From fundamental aspects to the most recent developments, Core Level Spectroscopy of Solids presents the theoretical calculations, experimental data, and underlying physics of x-ray photoemission spectroscopy (XPS), x-ray absorption spectroscopy (XAS), x
Book Synopsis Low-energy Excitations in Some Complex Oxides by Resonant Inelastic X-ray Scattering by : Jiatai Feng
Download or read book Low-energy Excitations in Some Complex Oxides by Resonant Inelastic X-ray Scattering written by Jiatai Feng and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The intriguing physical properties presented in some complex oxides of transition metals draw attention not only in fundamental research but also in applications, for instance, superconductivity, colossal magnetoresistance, multiferroicity. The strong electronic correlation is at the origin of these behaviours. The thesis is a contribution to both the experimental effort to determine the electronic structure of strongly correlated systems and the critical assesment of the theoretical models describing them. Experimentally, the work of is devoted to the investigations of the low-energy excitations (d-d excitations, charge transfer, ...) of the ground state by resonant inelastic x-ray scattering. The experiments have been performed on the SEXTANTS beamline of SOLEIL synchrotron (France) using the high resolving power AERHA spectrometer. The analysis of the data has been focused on the determination of the the crystal field of the transition metal involved using the crystal field multiplets theory.Two systems have been investigated: the multiferroics RMnO3 (R = Tb, Dy) and the ferromagnetic Mott insulator Lu2V2O7.
