| 炭载Pd-Pt催化剂中Pd和Pt原子比对直接甲醇燃料电池阴极催化性能的影响 |
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| 引用本文： | 贾羽洁,唐亚文,陈煜,周益明,陆天虹. 炭载Pd-Pt催化剂中Pd和Pt原子比对直接甲醇燃料电池阴极催化性能的影响[J]. 应用化学, 2011, 28(2): 224-228. DOI: 10.3724/SP.J.1095.2011.00169 |
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| 作者姓名： | 贾羽洁 唐亚文 陈煜 周益明 陆天虹 |
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| 作者单位： | (江苏省生物功能材料重点实验室,南京师范大学化学与环境科学学院 南京210097) |
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| 基金项目： | 科技部“八六三”计划项目(2007AA05Z143,2007AA05Z159); 国家自然科学基金(20703043,20873065,21073094)资助项目 |
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| 摘 要： | 研究了不同Pd和Pt原子比的炭载Pd-Pt(Pd-Pt/C)催化剂对氧还原的电催化性能和抗甲醇性能。 发现当Pd和Pt原子比从20∶0增加至17∶3时,Pd-Pt/C催化剂对氧还原的电催化活性逐步增加,而对甲醇氧化均元电催化活性,表明有很好的抗甲醇能力。 但当Pd和Pt原子比增加至16∶4时,虽然对氧还原的电催化活性还在增加,但抗甲醇能力下降。 所以当Pd-Pt原子比为17∶3时,Pd-Pt/C有很好的对氧还原的电催化性能和抗甲醇能力，可以用作直接甲醇燃料电池(DMFC)的阴极催化剂。
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| 关 键 词： | 直接甲醇燃料电池 碳载Pd-Pt催化剂 抗甲醇能力 氧还原 原子比 |
| 收稿时间： | 2010-03-23 |
| 修稿时间： | 2010-06-30 |
Effect of Atomic Ratio of Pd and Pt in Carbon Supported Pd-Pt Catalyst on Its Cathodic Performance in Direct Methanol Fuel Cell |
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| JIA Yujie,TANG Yawen,CHEN Yu,ZHOU Yiming,LU Tianhong. Effect of Atomic Ratio of Pd and Pt in Carbon Supported Pd-Pt Catalyst on Its Cathodic Performance in Direct Methanol Fuel Cell[J]. Chinese Journal of Applied Chemistry, 2011, 28(2): 224-228. DOI: 10.3724/SP.J.1095.2011.00169 |
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| Authors: | JIA Yujie TANG Yawen CHEN Yu ZHOU Yiming LU Tianhong |
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| Affiliation: | (Jiangsu Key Laboratory of Biofunctional Materials,School of Chemistry and ;Environmental Science,Nanjing Normal University,Nanjing 210097) |
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| Abstract: | The electrocatalytic performance for the oxygen reduction and the methanol tolerance ability of the Pd-Pt/C catalysts with different atom ratios of Pd and Pt was investigated. It is found that when the atom ratio of Pd and Pt is increased from 20∶0 to 17∶3, the electrocatalytic performance of the Pd-Pt/C catalyst for the oxygen reduction is increased. Furthermore, all the Pd-Pt/C catalysts with the atom ratios in the range of 20∶0~17∶3 have no electrocatalytic activity for the methanol oxidation and thus possess the excellent methanol tolerance ability. When the atom ratio is increased to 16∶4, the electrocatalytic performance of the Pd-Pt/C catalyst for the oxygen reduction is still increased, but the methanol tolerance ability is decreased. Thus, the Pd-Pt/C catalyst with 17∶3 atom ratio possesses an excellent electrocatalytic activity for oxygen reduction and methanol tolerance ability. Therefore, it can be used as the cathodic catalyst in direct methanol fuel cell(DMFC). |
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| Keywords: | direct methnol fuel cell carbon supported Pd-Pt catalyst methanol tolerance ability oxygen reduction atom ratio |
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