論文

査読有り 国際誌
2019年8月5日

Superionic Conduction over a Wide Temperature Range in a Metal-Organic Framework Impregnated with Ionic Liquids.

Angewandte Chemie (International ed. in English)
  • Yukihiro Yoshida
  • ,
  • Kazuyuki Fujie
  • ,
  • Dae-Woon Lim
  • ,
  • Ryuichi Ikeda
  • ,
  • Hiroshi Kitagawa

58
32
開始ページ
10909
終了ページ
10913
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1002/anie.201903980

Most molecules in confined spaces show markedly different behaviors from those in the bulk. Large pores are composed of two regions: an interface region in which liquids interact with the pore surface, and a core region in which liquids behave as bulk. The realization of a highly mobile ionic liquid (IL) in a mesoporous metal-organic framework (MOF) is now reported. The hybrid shows a high room-temperature conductivity (4.4×10-3  S cm-1 ) and low activation energy (0.20 eV); both not only are among the best values reported for IL-incorporated MOFs but also are classified as a superionic conductor. The conductivity reaches over 10-2  S cm-1 above 343 K and follows the Vogel-Fulcher-Tammann equation up to ca. 400 K. In particular, the hybrid is advantageous at low temperatures (<263 K), where the ionic conduction is superior to that of bulk IL, making it useful as solid-state electrolytes for electrochemical devices operating over a wide temperature range.

リンク情報
DOI
https://doi.org/10.1002/anie.201903980
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31140203
ID情報
  • DOI : 10.1002/anie.201903980
  • PubMed ID : 31140203

エクスポート
BibTeX RIS