| 用于质子交换膜燃料电池抗CO的Pt-CeO2/C催化剂的制备和表征 |
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| 引用本文： | 张海艳,林瑞,曹春晖,马建新.用于质子交换膜燃料电池抗CO的Pt-CeO2/C催化剂的制备和表征[J].催化学报,2011,32(4):606-611. |
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| 作者姓名： | 张海艳 林瑞 曹春晖 马建新 |
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| 作者单位： | 同济大学新能源汽车工程中心;华东理工大学资源与环境工程学院;同济大学汽车学院; |
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| 基金项目： | 教育部新教师基金(20070247055); 节能与环保汽车创新引智基地111计划(B08019); 同济大学青年优秀人才基金(2006KJ022); 上海市重点学科建设项目(B303)~~ |
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| 摘 要： | 采用一步沉淀法,制备了纳米级Pt-CeO2/C电催化剂.透射电镜和X射线衍射表征结果表明,制备的催化剂Pt颗粒均匀分散于碳载体表面,其粒径主要分布于1.5～2.5 nm.将Pt-CeO2/C催化剂制备成质子交换膜燃料电池膜电极,经循环伏安和单电池极化曲线测试发现,Pt-CeO2/C催化剂性能与Pt/C催化剂的相当.一氧...
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| 关 键 词： | 质子交换膜燃料电池 抗一氧化碳中毒 铂 二氧化铈 电化学比表面积 一氧化碳消除伏安测试 |
Preparation and Characterization of CO Tolerance Pt-CeO_2/C Catalyst for Proton Exchange Membrane Fuel Cells |
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| ZHANG Haiyan,LIN Rui,CAO Chunhui,MA Jianxin.Preparation and Characterization of CO Tolerance Pt-CeO_2/C Catalyst for Proton Exchange Membrane Fuel Cells[J].Chinese Journal of Catalysis,2011,32(4):606-611. |
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| Authors: | ZHANG Haiyan LIN Rui CAO Chunhui MA Jianxin |
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| Institution: | ZHANG Haiyan1,2,LIN Rui1,3,b,CAO Chunhui1,MA Jianxin1,a 1Clean Energy Automotive Engineering Center,Tongji University,Shanghai 201804,China 2School of Resources and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China 3School of Automotive Studies,China |
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| Abstract: | The nano-scale Pt-CeO2/C catalyst was prepared by the co-precipitation method.The results of transmission electron microscopy and X-ray diffraction analysis show that the average size of Pt-CeO2/C noble metal particles (1.5～2.5 nm) is highly dispersed on the carbon supports.Pt-CeO2/C and a commercial Pt/C catalyst from Johnson Matthey Company were investigated by cyclic voltammetry and CO-stripping experiment.The cyclic voltammetry test shows that the Pt-CeO2/C catalyst has similar electrochemical surface area to Pt/C,which indicates that the home-made Pt-CeO2/C catalyst has high electrocatalytic activity for hydrogen oxidation.From the CO-stripping experiment,the Pt-CeO2/C catalyst showed very high CO tolerant activity compared to the Pt/C catalyst.We also fabricated the membrane electrode assembly with Pt-CeO2/C or Pt/C catalyst on the anode (the cathode also used the Pt/C catalyst) and found that Pt-CeO2/C catalyst showed higher performance than Pt/C catalyst.A tentative mechanism was proposed for a possible role of Ce as a co-catalyst in the Pt/C system for CO electrooxidation. |
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| Keywords: | proton exchange membrane fuel cell carbon monoxide tolerance platinum ceria electrochemical surface area carbon monoxide-stripping |
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