发明名称 |
Method of preparing of nanometer electrocatalyst for proton exchange membrane fuel cell |
摘要 |
The present invention relates a method for preparing nanometer electrocatalyst for proton exchange membrane fuel cells, comprising the steps of: 1) adding in water a platinum halogen compound or a mixture of a platinum halogen compound and a ruthenium halogen compound, and active carbon, the amount of noble metal in the solution is 0.5-10 g/L, and the amount of active carbon is 0.05-2 g/L; 2) adjusting the pH of the solution to 2.5-10.5 with potassium hydroxide and/or ammonium hydroxide; 3) adding dropwise a reducing agent to an amount of 2.5 to 5 times in excess of that of the noble metal in moles, and allowing the reduction reaction to proceed; 4) filtering off the liquid and washing the remains; and 6) drying the remains. The catalysts prepared by the present invention have uniform particle sizes in the range of 4±0.5 nm, and superior electrochemical properties.
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申请公布号 |
US6518217(B2) |
申请公布日期 |
2003.02.11 |
申请号 |
US20010932048 |
申请日期 |
2001.08.17 |
申请人 |
CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES |
发明人 |
XING WEI;DU RONGBING;LU TIANHONG |
分类号 |
B01J21/18;B01J23/40;B01J23/42;B01J35/10;B01J37/02;H01M4/92;H01M8/10;(IPC1-7):B01J27/13;B01J27/06;H01M4/88;H01M4/86 |
主分类号 |
B01J21/18 |
代理机构 |
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主权项 |
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地址 |
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