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Citation: Si Yong-Chao, Han Zuo-Qing, Chen Yan-Xi. Effect of Catalyst Fabrication Method on the Performance of Oxygen Electrode in PEMFC[J]. Acta Physico-Chimica Sinica, ;1998, 14(04): 361-364. doi: 10.3866/PKU.WHXB19980415 shu

Effect of Catalyst Fabrication Method on the Performance of Oxygen Electrode in PEMFC

1.
Department of Applied Chemistry,Tianjin University,Tianjin 300072

Received Date: 14 July 1997
Available Online: 15 April 1998

The effects of two catalyst fabrication techniques, impregnation method and colloidal method, on the performance of the oxygen electrode are studied and the difference in the catalytic activity of the two kinds of catalysts towards oxygen reduction are also analyzed with the aid of TEM and XRD. Based on the results and analysis, the following conclusions are obtained: the catalyst fabrication technique exerts an effect on the performance of the oxygen electrode, com-paring the performance of the Pt/C catalyst prepared by impregnation method with that of the Pt/C catalyst prepared by colloidal method, the latter shows a higher catalytic activity towards oxygen reduction; Pt/C electrocatalyst has small particle size and large fraction of Pt(111) crystal surface.
- Polymer electrolyte membrane fuel cells(PEMFCs),
- Oxygen electrode,
- Pt/C electrocatalyst,
- Catalyst fabrication technique
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