Nitrogen-incorporated amorphous carbon catalysts with higher reactivity toward oxygen reduction reaction

Kensuke Honda, Yohsuke Shimai, Yuta Waki, Keigo Okafuji, Shinpei Ohtomo, Ryutaro Kobayashi, Hiroshi Naragino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Amorphous carbon (a-C) based catalysts having higher oxygen reduction reaction (ORR) activity and higher stability for ORR were realized by inserting nitrogen atoms in the valleys of zigzag edges of sp2 cluster surface in a-C. ORR activity could be controlled by varying sizes and volume density of sp2 cluster. The maximum number of electrons of 2.82 for ORR was achieved. The N-doped a-C catalysts have the activity of 4-electron O2 reduction reaction. The catalytic activity was stable in long term (150 times) measurements. Consequently, the N-doped a-C catalysts possess higher stability for ORR.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 16, PEFC 16
EditorsD. J. Jones, F. N. Buchi, B. S. Pivovar, T. F. Fuller, A. Z. Weber, L. Zhuang, C. Coutanceau, P. N. Pintauro, K. E. Ayers, V. K. Ramani, P. Strasser, R. A. Mantz, S. R. Narayanan, S. Mitsushima, T. J. Schmidt, S. G. Sun, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, J. M. Fenton, Y. T. Kim, K. A. Perry, P. Shirvanian, K. Shinohara
PublisherElectrochemical Society Inc.
Pages1021-1028
Number of pages8
Edition14
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: Oct 2 2016Oct 7 2016

Publication series

NameECS Transactions
Number14
Volume75
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting
CountryUnited States
CityHonolulu
Period10/2/1610/7/16

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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