Direct observation of well-dispersed Pt nanopartieles inside the pores of mesoporous carbon through the cross section of Pt/mesoporous carbon particles

Akari Hayashi, Ken'ichi Kimijima, Junichi Miyamoto, Ichizo Yagi

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Pt nanoparticles were deposited on mesoporous carbon support using two different Pt precursors, and the difference in mass activity toward oxygen reduction between the two was successfully examined through direct observation of Pt nanopartieles inside the mesopores. Existence of 1-nm-sized Pt particles on the wall of mesopores was observed, and catalytic activity was higher if the size of Pt particles inside the pores was smaller. The size and stability of Pt catalysts encapsulated in nanospace is key for catalytic activity.

Original languageEnglish
Pages (from-to)346-347
Number of pages2
JournalChemistry Letters
Volume38
Issue number4
DOIs
Publication statusPublished - Jul 20 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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