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| Preparation and Performance of Pt-NbOx/C、Pt-ZrO2/C Composite Catalysts on Oxygen Electrodes |
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| DOI：doi：10.3969/j.issn.1007-7545.年份.期号.顺序号 |
| KeyWord:Proton exchange membrane fuel cell;Catalysts;Assistant catalysts;NbOx;ZrO2; |
| MENG Qing-hu,ZHANG Xiang-jun,LI Wei-wei,LU Shi-gang |
| Beijing General Research Institute for Nonferrous Metals/a>;Beijing 100088/a>;China |
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| Abstract: |
| Pt-NbOx/C and Pt-ZrO2/C were synthesized with NbOx and ZrO2 as assistant catalysts by two step method.The phase and morphology of the catalysts were investigated by XRD and SEM respectively.The character of electrochemistry of the catalysts were investigated by Cyclic Voltammetry and Linear Sweep Voltammetry.The results show that the sizes of Pt grains were less than 5nm and dispersed uniformly on the surface of carrier;the electrochemical reduction mechanism of oxygen was not changed when adding NbOx and Z... |
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