論文

査読有り
2013年6月

Graphene Oxide Nanosheet with High Proton Conductivity

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
  • Mohammad Razaul Karim
  • Kazuto Hatakeyama
  • Takeshi Matsui
  • Hiroshi Takehira
  • Takaaki Taniguchi
  • Michio Koinuma
  • Yasumichi Matsumoto
  • Tomoyuki Akutagawa
  • Takayoshi Nakamura
  • Shin-ichiro Noro
  • Teppei Yamada
  • Hiroshi Kitagawa
  • Shinya Hayami
  • 全て表示

135
22
開始ページ
8097
終了ページ
8100
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/ja401060q
出版者・発行元
AMER CHEMICAL SOC

We measured the proton conductivity of bulk graphite oxide (GO'), a graphene oxide/proton hybrid (GO-H), and a graphene oxide (GO) nanosheet for the first time. GO is well-known electronic insulator, but for proton conduction we observed the reverse trend, as it exhibited superionic conductivity. The hydrophilic sites present in GO as -O-, -OH, and -COOH functional groups attract the protons, which propagate through hydrogen-bonding networks along the absorbed water film. The proton conductivities of GO' and GO-H at 100% humidity were similar to 10(-4) and similar to 10(-5) S cm(-1), respectively, whereas that for GO was amazingly high, nearly 10(-2) S cm(-1). This finding indicates the possibility of GO-based perfect two-dimensional proton-conductive materials for applications in fuel cells, sensors, and so on.

リンク情報
DOI
https://doi.org/10.1021/ja401060q
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201302261252441533
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/23676105
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000320153100003&DestApp=WOS_CPL
ID情報
  • DOI : 10.1021/ja401060q
  • ISSN : 0002-7863
  • J-Global ID : 201302261252441533
  • PubMed ID : 23676105
  • Web of Science ID : WOS:000320153100003

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