Abstract
Iron-modified carbon-supported platinum electrocatalysts were synthesized by the Bönnemann colloidal method. Physical characterization by the methods of Brunauer-Emmett-Teller, transmission electron microscopy, and X-ray diffraction measurements were conducted to explore the catalyst surface area and particle size, particle distribution, degree of metal alloy, and phase structure. Electrochemical measurements were carried out to characterize the catalyst oxygen reduction reaction (ORR) activity under the condition of with and without methanol present. The catalyst performance was evaluated by rotating disk electrode sweep voltammetry and cyclic voltammetry techniques. The PtFe catalysts showed enhanced methanol tolerance and catalytic activity compared to Pt catalyst. The PtFe catalysts with atomic compositions of PtFe=9:1 and PtFe=1:1 showed more enhanced methanol tolerance and catalytic activity than the PtFe=3:1.
| Original language | English (US) |
|---|---|
| Pages (from-to) | B560-B565 |
| Journal | Journal of the Electrochemical Society |
| Volume | 154 |
| Issue number | 6 |
| DOIs | |
| State | Published - Aug 1 2007 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
- Electrochemistry
- Materials Chemistry
Cite this
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Fe-modified, Pt-based cathodic electrocatalysts for oxygen reduction reaction with enhanced methanol tolerance. / Gong, Yanming; Yeboah, Yaw D.; Lvov, Serguei N.; Balashov, Victor; Wang, Zhicheng.
In: Journal of the Electrochemical Society, Vol. 154, No. 6, 01.08.2007, p. B560-B565.Research output: Contribution to journal › Article
TY - JOUR
T1 - Fe-modified, Pt-based cathodic electrocatalysts for oxygen reduction reaction with enhanced methanol tolerance
AU - Gong, Yanming
AU - Yeboah, Yaw D.
AU - Lvov, Serguei N.
AU - Balashov, Victor
AU - Wang, Zhicheng
PY - 2007/8/1
Y1 - 2007/8/1
N2 - Iron-modified carbon-supported platinum electrocatalysts were synthesized by the Bönnemann colloidal method. Physical characterization by the methods of Brunauer-Emmett-Teller, transmission electron microscopy, and X-ray diffraction measurements were conducted to explore the catalyst surface area and particle size, particle distribution, degree of metal alloy, and phase structure. Electrochemical measurements were carried out to characterize the catalyst oxygen reduction reaction (ORR) activity under the condition of with and without methanol present. The catalyst performance was evaluated by rotating disk electrode sweep voltammetry and cyclic voltammetry techniques. The PtFe catalysts showed enhanced methanol tolerance and catalytic activity compared to Pt catalyst. The PtFe catalysts with atomic compositions of PtFe=9:1 and PtFe=1:1 showed more enhanced methanol tolerance and catalytic activity than the PtFe=3:1.
AB - Iron-modified carbon-supported platinum electrocatalysts were synthesized by the Bönnemann colloidal method. Physical characterization by the methods of Brunauer-Emmett-Teller, transmission electron microscopy, and X-ray diffraction measurements were conducted to explore the catalyst surface area and particle size, particle distribution, degree of metal alloy, and phase structure. Electrochemical measurements were carried out to characterize the catalyst oxygen reduction reaction (ORR) activity under the condition of with and without methanol present. The catalyst performance was evaluated by rotating disk electrode sweep voltammetry and cyclic voltammetry techniques. The PtFe catalysts showed enhanced methanol tolerance and catalytic activity compared to Pt catalyst. The PtFe catalysts with atomic compositions of PtFe=9:1 and PtFe=1:1 showed more enhanced methanol tolerance and catalytic activity than the PtFe=3:1.
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U2 - 10.1149/1.2724153
DO - 10.1149/1.2724153
M3 - Article
AN - SCOPUS:34547151271
VL - 154
SP - B560-B565
JO - Journal of the Electrochemical Society
JF - Journal of the Electrochemical Society
SN - 0013-4651
IS - 6
ER -