抄録
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.
本文言語 | English |
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ページ(範囲) | 1474-1479 |
ページ数 | 6 |
ジャーナル | Angewandte Chemie - International Edition |
巻 | 57 |
号 | 6 |
DOI | |
出版ステータス | Published - 2018 2 5 |
外部発表 | はい |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)