2017年10月
Invariant nature of substituted element in metal-hexacyanoferrate
SCIENTIFIC REPORTS
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- 巻
- 7
- 号
- 1
- 開始ページ
- 13225
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1038/s41598-017-13719-z
- 出版者・発行元
- NATURE PUBLISHING GROUP
The chemical substitution of a transition metal (M) is an effective method to improve the functionality of materials. In order to design the highly functional materials, we first have to know the local structure and electronic state around the substituted element. Here, we systematically investigated the local structure and electronic state of the host (M-h) and guest (M-g) transition metals in metal-hexacyanoferrate (M-HCF), Na-x(M-h, M-g)[Fe(CN)(6)](y) (1.40 < x < 1.60 and 0.85 < y < 0.90), by means of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near-edge structure (XANES) analyses. The EXAFS and XANES analyses revealed that the local structure and electronic state around M-g are essentially the same as those in the pure compound, i.e, M-g-HCF. Such an invariant nature of M-g in M-HCF is in sharp contrast with that in layered oxide, in which the M-g valence changes so that local M-g-O distance (d(M-O)(g)) approaches the M-h-O distance (d(M-O)(h)).
- リンク情報
- ID情報
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- DOI : 10.1038/s41598-017-13719-z
- ISSN : 2045-2322
- Web of Science ID : WOS:000413048000036