論文

査読有り
2013年7月

Integration of Intrinsic Proton Conduction and Guest-Accessible Nanospace into a Coordination Polymer

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
  • Daiki Umeyama
  • ,
  • Satoshi Horike
  • ,
  • Munehiro Inukai
  • ,
  • Susumu Kitagawa

135
30
開始ページ
11345
終了ページ
11350
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/ja4051668
出版者・発行元
AMER CHEMICAL SOC

We report the synthesis and characterization of a coordination polymer that exhibits both intrinsic proton conductivity and gas adsorption. The coordination polymer, consisting of zinc ions, benzimidazole, and orthophosphate, exhibits a degree of flexibility in that it adopts different structures before and after dehydration. The dehydrated form shows higher intrinsic proton conductivity than the original form, reaching as high as 1.3 x 10(-3) S cm(-1) at 120 degrees C. We found that the rearranged conduction path and liquid-like behavior of benzimidazole molecules in the channel of the framework afforded the high proton conductivity. Of the two forms of the framework, only the dehydrated form is porous to methanol and demonstrates guest-accessible space in the structure. The proton conductivity of the dehydrated form increases by 24 times as a result of the in situ adsorption of methanol molecules, demonstrating the dual functionality of the framework. NMR studies revealed a hydrogen-bond interaction between the framework and methanol, which enables the modulation of proton conductivity within the framework.

Web of Science ® 被引用回数 : 85

リンク情報
DOI
https://doi.org/10.1021/ja4051668
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201302243417565897
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/23829398
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000322752900068&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-84881035738&partnerID=MN8TOARS
URL
http://orcid.org/0000-0003-4830-6888

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