μ-XAFS of a single particle of a practical NiOx/Ce2Zr2Oy catalyst

Mizuki Tada; Nozomu Ishiguro; Tomoya Uruga; Hajime Tanida; Yasuko Terada; Shin-ichi Nagamatsu; Yasuhiro Iwasawa; Shin-ichi Ohkoshi

doi:10.1039/C1CP20895K

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μ-XAFS of a single particle of a practical NiO_x/Ce₂Zr₂O_y catalyst†

Mizuki Tada,*^ab Nozomu Ishiguro,^ac Tomoya Uruga,^d Hajime Tanida,^d Yasuko Terada,^d Shin-ichi Nagamatsu,^ae Yasuhiro Iwasawa^e and Shin-ichi Ohkoshi^c

Author affiliations

* Corresponding authors

^a Institute for Molecular Science, Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
E-mail: mtada@ims.ac.jp
Fax: +81-564-55-7351

^b The Graduate University for Advanced Studies (SOKENDAI), Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan

^c Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

^d JASRI, SPring-8, 1-1-1 Koto, Sayo, Hyogo 679-5198, Japan

^e Department of Engineering Science, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan

Abstract

μ-XAFS analysis using an X-ray μ-beam (1000 nm (h) × 800 nm (v)) was successfully carried out on a single particle of a practical catalyst NiO_x/Ce₂Zr₂O_y (0 ≤ x ≤ 1, 7 ≤ y ≤ 8). The oxidation state and local coordination structure of the NiO_x/Ce₂Zr₂O_y particle were characterized by Ni K-edge μ-XANES and μ-EXAFS, which showed the catalytically active and inactive phases of a single catalyst particle.

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Article information

DOI: https://doi.org/10.1039/C1CP20895K
Article type: Communication
Submitted: 24 Mar 2011
Accepted: 12 May 2011
First published: 08 Jun 2011

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Phys. Chem. Chem. Phys., 2011,13, 14910-14913

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μ-XAFS of a single particle of a practical NiO_x/Ce₂Zr₂O_y catalyst

M. Tada, N. Ishiguro, T. Uruga, H. Tanida, Y. Terada, S. Nagamatsu, Y. Iwasawa and S. Ohkoshi, Phys. Chem. Chem. Phys., 2011, 13, 14910 DOI: 10.1039/C1CP20895K

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