Switching redox-active sites by valence tautomerism in prussian blue analogues AxMny[Fe(CN)6]· n H 2O (A: K, Rb): Robust frameworks for reversible Li storage

M. Okubo, D. Asakura, Y. Mizuno, J. D. Kim, T. Mizokawa, T. Kudo, I. Honma

研究成果: Article査読

131 被引用数 (Scopus)

抄録

The discovery of a new electrode material that provides a reversible Li ion insertion/extraction reaction is of primary importance for Li ion batteries. In this report, electrochemical Li ion insertion/extraction in valence tautomeric Prussian blue analogues AxMny[Fe(CN)6] (A: K, Rb) was investigated. Ex situ X-ray diffraction experiments revealed that the K salt without the valence tautomerism exhibits the Li ion insertion/extraction with a redox process of an Fe ion, while the Rb salt with the valence tautomerism exhibits that with a redox process of a Mn ion. Regardless of the redox-active metal ions, highly reversible Li ion storage was achieved. The electronic structure changes during the Li ion insertion/extraction are confirmed by XPS experiments.

本文言語English
ページ(範囲)2063-2071
ページ数9
ジャーナルJournal of Physical Chemistry Letters
1
14
DOI
出版ステータスPublished - 2010 7 15
外部発表はい

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

フィンガープリント 「Switching redox-active sites by valence tautomerism in prussian blue analogues A<sub>x</sub>Mn<sub>y</sub>[Fe(CN)<sub>6</sub>]· n H <sub>2</sub>O (A: K, Rb): Robust frameworks for reversible Li storage」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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