@article{df2dd29d3084480c902242fae8982a11,
title = "Visualization of Heterogeneous Oxygen Storage Behavior in Platinum-Supported Cerium-Zirconium Oxide Three-Way Catalyst Particles by Hard X-ray Spectro-Ptychography",
abstract = "The cerium density and valence in micrometer-size platinum-supported cerium–zirconium oxide Pt/Ce2Zr2Ox (x=7–8) three-way catalyst particles were successfully mapped by hard X-ray spectro-ptychography (ptychographic-X-ray absorption fine structure, XAFS). The analysis of correlation between the Ce density and valence in ptychographic-XAFS images suggested the existence of several oxidation behaviors in the oxygen storage process in the Ce2Zr2Ox particles. Ptychographic-XAFS will open up the nanoscale chemical imaging and structural analysis of heterogeneous catalysts.",
keywords = "X-ray spectro-ptychography, ceria–zirconia, oxygen storage, three-way catalysts",
author = "Makoto Hirose and Nozomu Ishiguro and Kei Shimomura and Nicolas Burdet and Hirosuke Matsui and Mizuki Tada and Yukio Takahashi",
note = "Funding Information: This work was supported by KAKENHI (Grant Nos. 16K13725, 16K17863, 16H00889, and Kiban B 26288005) and JSPS Fellows (Grant Nos. 16J00329 and 17J01673), and the SENTAN Project of JST. We thank Prof. Dr. K. Yamauchi (Osaka Univ.), Prof. Dr. T. Ishikawa (RIKEN), and Prof. Dr. M. Takata (Tohoku Univ./RIKEN) for many stimulating discussions, as well as Dr. Y. Kohmura (RIKEN) for help in the experimental setup and Dr. Y. Nagai (Toyota Central R&D Labs. Inc.) for sample preparation. Publisher Copyright: {\textcopyright} 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2018",
month = feb,
day = "5",
doi = "10.1002/anie.201710798",
language = "English",
volume = "57",
pages = "1474--1479",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "6",
}