Synthesis and Li+ intercalation/extraction in ultrathin V 2O5 layer and freestanding V2O 5/Pt/PVA multilayer films

Yuanzhi Li, Toyoki Kunitake, Yoshitaka Aoki

研究成果: Contribution to journalArticle査読

24 被引用数 (Scopus)

抄録

A uniform V2O5 nanostructured ultrathin film has been prepared by spin-coating followed by heat treatment. This V2O 5 nanostructured ultrathin film is composed of 4 nm closely connected V2O5 domains and has lamellar structure. Compared with a thicker V2O5 film (78 nm), the 17 nm V2O 5 film showed a very good electrochemical performance of fast charge/discharge and excellent electrochemical stability. The excellent electrochemical performance of the V2O5 nanostructured ultrathin film is attributed to its nanostructure, which results in short Li+ diffusion distance and free Li+ accessibility to intercalation active sites. A facile approach to preparing a freestanding V 2O5/Pt/PVA multilayer film on a large scale was developed. The thicknesses of the V2O5, Pt, and PVA are 22, 57, and 704 nm, respectively. The freestanding multilayer is stable in air, flexible, and robust and exhibits excellent electrochemical performance.

本文言語英語
ページ(範囲)575-580
ページ数6
ジャーナルChemistry of Materials
19
3
DOI
出版ステータス出版済み - 2 6 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 化学工学(全般)
  • 材料化学

フィンガープリント

「Synthesis and Li<sup>+</sup> intercalation/extraction in ultrathin V <sub>2</sub>O<sub>5</sub> layer and freestanding V<sub>2</sub>O <sub>5</sub>/Pt/PVA multilayer films」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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