The role of Fe species in the pyrolysis of Fe phthalocyanine and phenolic resin for preparation of carbon-based cathode catalysts

Yuta Nabae, Shogo Moriya, Katsuyuki Matsubayashi, Stephen M. Lyth, Michal Malon, Libin Wu, Nazrul M. Islam, Yuka Koshigoe, Shigeki Kuroki, Masa Aki Kakimoto, Seizo Miyata, Jun Ichi Ozaki

Research output: Contribution to journalArticlepeer-review

115 Citations (Scopus)

Abstract

Pyrolysis of a mixture of Fe phthalocyanine and phenolic resin (FePc/PhRs) was studied to clarify the details of the preparation protocol of nitrogen-doped carbon-based materials for cathode catalysts in polymer electrolyte membrane fuel cells. TEM images show that nanoshell carbon is formed by the pyrolysis of FePc/PhRs in the temperature range of 600-800 °C. The optimum pyrolysis temperature for the FePc/PhRs mixture was 600 °C, where moderate conductivity and high nitrogen content of the prepared carbon were both satisfied. This catalyst showed a promising fuel cell performance with 1.01 V open-circuit voltage and 0.33 W cm-2 maximum output, at 0.2 MPa absolute pressure and 80 °C. A detailed study of the carbonization process suggests that the presence of Fe species during carbonization process contributes to higher nitrogen content and growth of nanoshell structure of the resulting carbon.

Original languageEnglish
Pages (from-to)2613-2624
Number of pages12
JournalCarbon
Volume48
Issue number9
DOIs
Publication statusPublished - Aug 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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