Carbon-free pt electrocatalysts supported on SnO2 for polymer electrolyte fuel cells

A. Masao, S. Noda, F. Takasaki, Kohei Ito, Kazunari Sasaki

Research output: Contribution to journalArticle

96 Citations (Scopus)

Abstract

Carbon-free Pt-based electrocatalysts supported on semiconducting SnO 2 (Pt/ SnO2) have been developed for polymer electrolyte fuel cells (PEFCs) by various electrochemical and microstructural characterizations. Pt/ SnO2 exhibited comparable current-voltage characteristics to conventional Pt electrocatalysts and, in particular, a considerable tolerance against 10,000 cycles of voltages up to 0.9 and 1.3 VRHE (RHE denotes reversible hydrogen electrode) vs the RHE. These results indicate that the carbon-free oxide-supported Pt/ SnO2 can be a promising alternative electrocatalyst with long-term durability against voltage cycling up to higher potentials, as a possible fundamental solution to the PEFC degradation caused by carbon support corrosion.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume12
Issue number9
DOIs
Publication statusPublished - Jul 31 2009

Fingerprint

electrocatalysts
Electrocatalysts
Electrolytes
fuel cells
Fuel cells
Polymers
Carbon
electrolytes
carbon
polymers
electric potential
cycles
Electric potential
Current voltage characteristics
durability
Oxides
Hydrogen
corrosion
Durability
Corrosion

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering

Cite this

Carbon-free pt electrocatalysts supported on SnO2 for polymer electrolyte fuel cells. / Masao, A.; Noda, S.; Takasaki, F.; Ito, Kohei; Sasaki, Kazunari.

In: Electrochemical and Solid-State Letters, Vol. 12, No. 9, 31.07.2009.

Research output: Contribution to journalArticle

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