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2011/06/08

Press Release

Space-resolved XAFS characterization of a single catalyst particle for CH4 steam reforming

Dr. Mizuki Tada and her colleagues at IMS and collaborators at JASRI SPring-8 succeeded in measuring space-resolved micro-XAFS of a single catalyst particle of NiOx/Ce2Zr2Oy catalyst for CH4 steam reforming.

CH4 steam-reforming is one of the important reactions to convert CH4 to H2 and we have found that Ni-supported Ce2Zr2Ox is active for the CH4 steam-reforming.  2D-space-resolved XAFS/XRF analysis of a Ni/Ce2Zr2Ox single catalyst particle by using X-ray micro-beam whose size was similar to the size of a single Ce2Zr2Ox particle was investigated at SPring-8 BL37XU.  We succeeded in determining the oxidation states and local coordination structures of the supported Ni species on a practical Ce2Zr2Ox catalyst particle and the micro-XAFS has for the first time revealed the microscopic structural information of catalytically active and inactive phases of the supported Ni species on a single catalyst particle.

Paper Information

Journal: Physical Chemistry Chemical Physics
Issued: 08 June 2011, DOI:10.1039/C1CP20895K, Communication
Title: μ-XAFS of A Single Particle of A Practical NiOx/Ce2Zr2Oy Catalyst
Authors: Mizuki Tada*, Nozomu Ishiguro, Tomoya Uruga, Hajime Tanida,
Yasuko Terada, Shin-ichi Nagamatsu, Yasuhiro Iwasawa, Shin-ichi Ohkoshi
http://pubs.rsc.org/en/content/articlelanding/2011/cp/c1cp20895k

TADA Group Information

http://www.ims.ac.jp/english/know_en/materials/tada/tada_en.html

　　　　　　　

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