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Issue 1, 2018
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A feasibility study of “range-extended” EXAFS measurement at the Pt L3-edge of Pt/Al2O3 in the presence of Au2O3

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Abstract

A feasibility study of a “range-extended” EXAFS measurement was conducted on the Pt L3-edge of Pt/Al2O3 in the presence of Au2O3. The Pt L3-edge EXAFS spectrum of the Pt/Al2O3 sample was successfully obtained without any interference at the Au L3-edge by means of high energy resolution fluorescence detection (HERFD) of the Pt Lα1 line with a Bragg type X-ray emission analyser crystal. A newly observed significant enhancement of the EXAFS oscillation amplitude was discussed on the points of the core-hole lifetime width and X-ray energy width. We also successfully obtained reasonable physical parameters by a conventional EXAFS curve fitting on the HERFD-EXAFS data. The HERFD-EXAFS technique can broaden the scope of application of EXAFS spectroscopy for complicated samples with many different elements.

Graphical abstract: A feasibility study of “range-extended” EXAFS measurement at the Pt L3-edge of Pt/Al2O3 in the presence of Au2O3

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Supplementary files

Article information


Submitted
07 Sep 2017
Accepted
27 Oct 2017
First published
27 Oct 2017

J. Anal. At. Spectrom., 2018,33, 84-89
Article type
Paper

A feasibility study of “range-extended” EXAFS measurement at the Pt L3-edge of Pt/Al2O3 in the presence of Au2O3

H. Asakura, N. Kawamura, M. Mizumaki, K. Nitta, K. Ishii, S. Hosokawa, K. Teramura and T. Tanaka, J. Anal. At. Spectrom., 2018, 33, 84
DOI: 10.1039/C7JA00309A

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