Carbon nanowalls as platinum support for fuel cells

Seog Chul Shin, Akihiko Yoshimura, Takahiro Matsuo, Manami Mori, Makoto Tanimura, Akimitsu Ishihara, Ken Ichiro Ota, Masaru Tachibana

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Platinum catalysts supported on carbon nanowalls (Pt/CNW) were prepared by a solution-reduction method. It is shown that Pt nanoparticles with a mean diameter of 3.5 nm are well dispersed along domain boundaries in each CNW. In addition, it is shown that the Pt/CNW has high electrochemical active surface area and utilization, comparable to those for commercially available T-Pt/CB with good performance. Such high electrocatalytic activity could be attributed to the high electric conductivity of CNW and the improvement of electronic properties of Pt nanoparticles on the domain boundaries, in addition to the high dispersion of Pt particles.

Original languageEnglish
Article number104308
JournalJournal of Applied Physics
Volume110
Issue number10
DOIs
Publication statusPublished - 2011 Nov 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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