2016年2月
Iron-Nitrogen-Doped Vertically Aligned Carbon Nanotube Electrocatalyst for the Oxygen Reduction Reaction
ADVANCED FUNCTIONAL MATERIALS
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- 巻
- 26
- 号
- 5
- 開始ページ
- 738
- 終了ページ
- 744
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/adfm.201503613
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
A highly active iron-nitrogen-doped carbon nanotube catalyst for the oxygen reduction reaction (ORR) is produced by employing vertically aligned carbon nanotubes (VA-CNT) with a high specific surface area and iron(II) phthalocyanine (FePc) molecules. Pyrolyzing the composite easily transforms the adsorbed FePc molecules into a large number of iron coordinated nitrogen functionalized nanographene (Fe-N-C) structures, which serve as ORR active sites on the individual VA-CNT surfaces. The catalyst exhibits a high ORR activity, with onset and half-wave potentials of 0.97 and 0.79 V, respectively, versus reversible hydrogen electrode, a high selectivity of above 3.92 electron transfer number, and a high electrochemical durability, with a 17 mV negative shift of E-1/2 after 10 000 cycles in an oxygen-saturated 0.5 m H2SO4 solution. The catalyst demonstrates one of the highest ORR performances in previously reported any-nanotube-based catalysts in acid media. The excellent ORR performance can be attributed to the formation of a greater number of catalytically active Fe-N-C centers and their dense immobilization on individual tubes, in addition to more efficient mass transport due to the mesoporous nature of the VA-CNTs.
- リンク情報
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- DOI
- https://doi.org/10.1002/adfm.201503613
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201602225799238085
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000369969100010&DestApp=WOS_CPL
- URL
- http://orcid.org/0000-0002-3694-1641
- ID情報
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- DOI : 10.1002/adfm.201503613
- ISSN : 1616-301X
- eISSN : 1616-3028
- J-Global ID : 201602225799238085
- ORCIDのPut Code : 42871078
- Web of Science ID : WOS:000369969100010