| 前驱体对碳载铂纳米催化剂的影响 |
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| 引用本文： | 杜春雨,程新群,史鹏飞,尹鸽平.前驱体对碳载铂纳米催化剂的影响[J].电池,2006,36(3):173-174. |
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| 作者姓名： | 杜春雨 程新群 史鹏飞 尹鸽平 |
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| 作者单位： | 哈尔滨工业大学应用化学系,哈尔滨,黑龙江,150001 |
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| 摘 要： | 以Pt(NH3)4Cl2和Pt(NH3)2(NO2)2为前驱体、采用浸渍法制备了质子交换膜燃料电池用Pt/C催化剂。HRSEM和XRD分析表明,Pt/C-Pt(NH3)2(NO2)2的晶粒细小均匀,Pt/C-Pt(NH3)4Cl2的晶粒则发生团聚。循环伏安和旋转圆盘电极实验表明,Pt/C-Pt(NH3)4Cl2与Pt/C-Pt(NH3)2(NO2)2的晶面分布存在明显的差异,Pt/C-Pt(NH3)2(NO2)2具有更高的氧催化活性,Pt(NH3)2(NO2)2是更适合的前驱体材料。
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| 关 键 词： | 燃料电池 催化剂 浸渍法 前驱体 |
| 文章编号： | 1001-1579(2006)03-0173-02 |
| 修稿时间： | 2005年10月27 |
Effect of precursors on carbon supported platinum nano-catalyst |
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| DU Chun-yu,CHEN Xin-qun,SHI Peng-fei,YIN Ge-ping.Effect of precursors on carbon supported platinum nano-catalyst[J].Battery Bimonthly,2006,36(3):173-174. |
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| Authors: | DU Chun-yu CHEN Xin-qun SHI Peng-fei YIN Ge-ping |
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| Abstract: | Carbon supported platinum(Pt/C) catalysts for proton exchange membrane fuel cells were prepared by the impregnation method with Pt(NH_3)__4Cl_2 and Pt(NH_3)_2(NO_2)_2 as precursors.HRSEM and XRD analyses indicated the crystal particles of Pt/C-Pt(NH_3)_2(NO_2)_2 were fine and even,the crystal particles of Pt/C-Pt(NH_3)_4Cl_2 were agglomerated.Cycling voltammetry and rotating disc electrode(RDE) tests showed the obvious different distributions of the crystal surfaces for Pt/C-Pt(NH_3)_4Cl_2 and Pt/C-Pt(NH_3)_2(NO_2)_2,Pt/C-Pt(NH_3)_2(NO_2)_2 had higher catalytic activity of oxygen,Pt(NH_3)_2(NO_2)_2 was the preferred precursor material. |
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| Keywords: | fuel cell catalyst impregnation method precursor |
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