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 paper, the relative intensity distribution of the K? x-ray satellites arising from multiply ionized atoms was investigated and it was shown that the multiplet intensities are sensitive to the environment and are therefore capable of providing additional chemical information.
Abstract: High resolution x-ray spectrometry in combination with excitation by heavy-ion bombardment provides a number of prospective ways of obtaining information relating to the chemical state of a substance. The relative intensity distribution of the K? x-ray satellites arising from multiply ionized atoms is sensitive to the chemical environment and in some cases might be profitably employed to distinguish between various chemical species. At resolutions sufficient to discern features of the multiplet structure associated with the angular momentum coupling of unpaired electrons, it is found that the multiplet intensities are also sensitive to the environment and are therefore capable of providing additional chemical information. For elements below phosphorous in the periodic table, the K? satellites overlap the K absorption edge, thereby providing a convenient and accurate means of measuring K binding energies. In this way, chemical shifts equivalent to those obtained by ESCA may be determined.
2 citations
Patent•
05 Jan 2006
TL;DR: In this article, the change in the chemical state of a resin is measured by an infrared absorbing spectrum, and the infrared rays detected from the resin are separated into the transmitted light from infrared rays entering the resin and the radiated infrared rays and only the change of transmitted light is utilized to pursue the state change of the resin.
Abstract: PROBLEM TO BE SOLVED: To provide an evaluation method for accurately grasping change in the chemical state of a resin. SOLUTION: When the change in the chemical state of the resin is measured by an infrared absorbing spectrum, the infrared rays detected from the resin are separated into the transmitted light from the infrared rays entering the resin and the radiated infrared rays and only the change of the transmitted light is utilized to pursue the state change of the resin. COPYRIGHT: (C)2006,JPO&NCIPI
2 citations
01 Jan 1979
TL;DR: In this article, two-dimensional distributions, depth profiles and the chemical state of the segregation were investigated by IMMA (ARL), ESCA (V.G.) and XRF.
Abstract: It has been reported that several elements segregate on the surface of cold-rolled steel sheets during annealing in a hydrogen reducing atmosphere [1,2]. In the present report, two-dimensional distributions, depth-profiles and the chemical state of the segregation were investigated by IMMA (ARL), ESCA (V.G.) and XRF.
2 citations
TL;DR: In this paper, the mechanism of the structural and chemical state modification of columbite, tantalite and zircon surface under the effect of high-voltage nanosecond pulses is investigated using a set of precision physical and chemical methods (e.g., XPS, FTIR, SEM-EDX, potentiometric titration, electrophoretic light scattering, AFM-Kelvin force probe microscopy, and microhardness).
Abstract: The mechanism of the structural and chemical state modification of columbite, tantalite and zircon surface under the effect of high-voltage nanosecond pulses is investigated using a set of precision physical and chemical methods (e.g., XPS, FTIR, SEM–EDX, potentiometric titration, electrophoretic light scattering, AFM–Kelvin force probe microscopy, and microhardness). An effective mode of preliminarily treating rare-metal minerals with high-voltage nanosecond pulses to produce directional changes in their physicochemical, electrical, mechanical, and technical properties is validated that increases mineral flotation and sorption activity and greatly improves the flotation technological characteristics of columbite and zircon.
2 citations
TL;DR: In this article, the microstructure and electronic structure of barium strontium iron cobalt oxide of nominal composition Ba0.5Sr 0.5Co0.8Fe0.2O3-δ (BSCF) was studied using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).
2 citations