Near-edge X-ray absorption spectroscopy and

Near-edge X-ray absorption spectroscopy and bonding, 34 223-235 continuum spectral features, 34 234-235 edge widths, 34 233-234 energy shifts and coordination charge, 34 228... 

E. Near-Edge X-Ray Absorption Spectroscopy and Local Structure... 

Near-edge X-ray absorption spectroscopy and techniques related to it by an extension of the photoelectron energy range or a modification in the experimental detection mode (EXAFS, surface XAS via Auger emission and... 

Information on Metal-Support Interactions from Near Edge X-ray Absorption Spectroscopy and Multiple Scattering Calculations... 

Zaera F, Fischer D A, Shen S and Gland J L 1998 Fluorescence yield near-edge X-ray absorption spectroscopy under atmospheric conditions CO and FI2 coadsorption on Ni(IOO) at pressures between 10 and 0.1 Torr Surf. Sc/. 194 205-16... 

The recent accomplishments of near-edge X-ray absorption spectroscopy in catalysis studies are already quite impressive, in particular if one considers the limited availability of suitable X-ray spectrometers. Developments of catalytic interest have concerned the Shell Higher Olefin process, size effects, metal-support interaction, mono- and bimetallic catalysts (in particular the PtRe/Al203 system), the reactivity of supported metal catalysts, dynamical and in situ catalyst studies, and a variety of oxide and sulfide catalysts. Other catalytic problems are now coming within easy experimental reach, such as the study of sulfur poisoning and the nature of coking. 

G. Witte, and C. Woll, Organic molecular beam-deposition of perylene on Cu(l 10) Results from near-edge x-ray absorption spectroscopy. X-ray photoelectron spectroscopy, and atomic force microscopy, J. Mater. Res. 19(7), 2049-2056 (2004). 

Hastie, G.P. et al., Examination of the structure and melting behavior of thin film n-aUcanes using ultrasoft polarized near-edge x-ray absorption spectroscopy, J. Chem. Soc.-Faraday Trans. 92, 783-789, 1996. 

Common techniques for the characterization of the electrocatalysts include High Resolution Electron Microscopy (HRTEM), Extended X-ray Absorption Fine Stracture Spectroscopy (EXAFS), Energy Dispersive Spectroscopy (EDS), Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), Near Edge X-ray Absorption Spectroscopy (XANES), X-Ray Powder Diffraction (XRPD), Infrared and Raman Spectroscopy (IR, RS). 

A very detailed fuel cell-related TEM study of CB and CB corrosion can be found in Eiu et al. [15]. Gas adsorption, Hg intrusion porosimetry, and small-angle X-ray scattering (SAXS) provide information on porosity and pore size distribution, each of them having its own advantages and limitations. Methods that can be used to probe the functional groups at the carbon surface are X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption spectroscopy (NEXAES). Table 7.1 gives an overview of characterization techniques applied... 

Surface Chemistry by X-ray Photoelectron Spectroscopy (XPS) and Near-Edge X-ray Absorption Spectroscopy Fine Structure (NEXAFS)... 

Functional macromolecular materials, such as those considered in this book are suitable for being investigated by X-ray photoelecfron spectroscopy (XPS) also induced by synchrotron radiation and near edge X-ray absorption spectroscopy (NEXAFS). 

Fischer D, Marti A and Hahner G 1997 Orientation and order in microcontact-printed, seif-assembied monoiayers of aikanethiois on goid investigated with near edge x-ray absorption fine structure spectroscopy J. Vac. Sc/. Technol. A 15 (4) 2173-80... 

Near edge x-ray absorption fine stmcture spectroscopy (nexafs) and x-ray photoelectron spectroscopy (xps) have been used to study SAMs of OTS, octadecyltrimethoxysilane (OTMS), CH2(CH2) ySi(OCH2)3, and (17-aminoheptadecyl)-trimethoxysilane (AHTMS), H2N(CH2) ySi(OCH3)3 (149). A number of important observations have been reported. First, the chains in OTS SAMs are practicaUy perpendicular to the substrate surface (tilt angle... 

EXAFS is part of the field of X-ray absorption spectroscopy (XAS), in which a number of acronyms abound. An X-ray absorption spectrum contains EXAFS data as well as the X-ray absorption near-edge structure, XANES (alternatively called the near-edge X-ray absorption fine structure, NEXAFS). The combination of XANES (NEXAFS) and EXAFS is commonly referred to as X-ray absorption fine structure, or XAFS. In applications of EXAFS to surface science, the acronym SEXAFS, for surface-EXAFS, is used. The principles and analysis of EXAFS and SEXAFS are the same. See the article following this one for a discussion of SEXAFS and NEXAFS. 

The deposition conditions should be optimized to obtain approximately equal amounts of matrix and spreader-bar molecules on the surface [18,21]. Analysis of monolayers by near-edge X-ray absorption fine-structure spectroscopy. 

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