Topic
Chemical state
About: Chemical state is a research topic. Over the lifetime, 2378 publications have been published within this topic receiving 78183 citations.
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TL;DR: In this article, deuterium retention behavior in highly oriented pyrolytic graphite (HOPG), polycrystalline diamond, poly-crystaline SiC, sintered WC, and converted B4C were investigated to reveal tritium behavior in redeposition and co-deposition layers.
1 citations
TL;DR: In this paper , the chemical speciation of trace elements in coal was analyzed using a variety of techniques, including X-ray Photoelectron Spectroscopy (XPS), Near Edge X-Ray Absorption Fine Structure (NEXAFS), and sequential chemical extraction procedures.
1 citations
TL;DR: In this article, a variety of numerical methods, including linear least squares fitting and target factor analysis, are used to enhance the analysis and interpretation of surface analysis data for the determination of composition and chemistry of the elements in a material.
Abstract: X-ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES) have long been used as a surface analytical methods for the determination of composition and chemistry of the elements in a material. Peak overlap or subtle changes in chemistry may make the chemical state analysis of the elements in a material difficult. By using a variety of numerical methods, including linear least squares fitting and target factor analysis, it is possible to enhance the analysis and interpretation of surface analysis data
1 citations
Patent•
04 Jun 2012
TL;DR: In this paper, the peak area of a peak derived from ether linkage obtained by performing waveform separation of an X-ray photoelectron spectroscopy spectrum, obtained as analysis results of chemical state of carbon on the outermost surface of the photo-curing material, out of the analysis results obtained by surface analysis of the textured material using resolved Xray photo-electron Spectroscopy analysis, is 3.0 times or more.
Abstract: PROBLEM TO BE SOLVED: To provide a photo-curing material of small release force.SOLUTION: The photo-curing material obtained by curing with light contains a surfactant. In the photo-curing material, the peak area of a peak derived from ether linkage obtained by performing waveform separation of an X-ray photoelectron spectroscopy spectrum, obtained as analysis results of chemical state of carbon on the outermost surface of the photo-curing material, out of the analysis results of the outermost surface of the photo-curing material obtained by surface analysis of the photo-curing material using resolved X-ray photoelectron spectroscopy analysis, is 3.0 times or more of the peak area of a peak derived from ester linkage.
1 citations
TL;DR: In this paper, the preparation and application of gold and cerium catalysts supported on zirconium-doped mesoporous silica SBA-15 was studied.
Abstract: In this article, the preparation and application of gold and cerium catalysts supported on zirconium-doped mesoporous silica SBA-15 was studied. These materials have been prepared by two different methods and characterized to investigate their textural properties, dispersion of the active phases and oxidation states. Both materials exhibit a marked catalytic activity. The size of the gold nanoparticles is directly related to the CO conversion rate and to the selectivity towards CO2 exhibiting a strong temperature dependence. An X-ray photoelectron spectroscopic study of the composition and chemical state of the nanoparticles indicates the presence of Au in a metallic state. Transmission electron microscopic micrographs indicate that the best catalyst shows a higher dispersion of Au in spite of its lower gold surface content.
1 citations