2013年6月
Graphene Oxide Nanosheet with High Proton Conductivity
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- 巻
- 135
- 号
- 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