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 language | English |
|---|---|
| Journal | Electrochemical and Solid-State Letters |
| Volume | 12 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Jul 31 2009 |
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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 journal › Article
}
TY - JOUR
T1 - Carbon-free pt electrocatalysts supported on SnO2 for polymer electrolyte fuel cells
AU - Masao, A.
AU - Noda, S.
AU - Takasaki, F.
AU - Ito, Kohei
AU - Sasaki, Kazunari
PY - 2009/7/31
Y1 - 2009/7/31
N2 - 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.
AB - 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.
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U2 - 10.1149/1.3152325
DO - 10.1149/1.3152325
M3 - Article
VL - 12
JO - Electrochemical and Solid-State Letters
JF - Electrochemical and Solid-State Letters
SN - 1099-0062
IS - 9
ER -