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Design of a high-temperature and high-pressure liquid flow cell for x-ray absorption fine structure measurements under catalytic reaction conditions

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Title: Design of a high-temperature and high-pressure liquid flow cell for x-ray absorption fine structure measurements under catalytic reaction conditions
Authors: Kawai, Toshihide Browse this author
Chun, Wang-Jae Browse this author
Asakura, Kiyotaka Browse this author
Koike, Yuichiro Browse this author
Nomura, Masaharu Browse this author
Bando, Kyoko K. Browse this author
Oyama, S. Ted Browse this author
Sumiya, Hitoshi Browse this author
Issue Date: 28-Jan-2008
Publisher: American Institute of Physics
Journal Title: Review of Scientific Instruments
Volume: 79
Issue: 1
Start Page: 014101
Publisher DOI: 10.1063/1.2829156
PMID: 18248051
Abstract: The design and performance of a new high-pressure and high-temperature cell for measurement of x-ray absorption fine structure (XAFS) spectra of solid catalysts working in a flowing liquid are presented. The cell has flat, high-purity sintered cubic boron nitride (c-BN) windows which can tolerate high temperature (900 K) and high pressure (10 MPa). The c-BN is a new material which has the highest tensile strength, second only to diamond, and is also chemically and thermally stable. The use of the cell is demonstrated for measurements of PtPd/Al2O3 and Ni2P/SiO2 hydrodesulfurization catalysts at reaction conditions. A technique called delta χ (Δχ), involving determining the difference between XAFS spectra of the sample at reaction conditions and the bare sample, is introduced.
Rights: Copyright 2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Type: article
URI: http://hdl.handle.net/2115/33047
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 朝倉 清高

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