| 专利名称 | Method of preparing nano-level platinum/carbon electrocatalyst for cathode of fuel cell | 申请号 | US20030424215 | 专利类型 | US | 公开（公告）号 | US6815391 | 公开（授权）日 | 2004.11.09 | 申请（专利权）人 | 中国科学院长春应用化学研究所 | 发明（设计）人 | LU TIANHONG (CN); LI XUGUANG (CN); XING WEI (CN) | 主分类号 | H01M4/88 | IPC主分类号 | H01M4/88;H01M4/86;B01J21/18;B01J23/02;B01J23/40 | 专利有效期 | Method of preparing nano-level platinum/carbon electrocatalyst for cathode of fuel cell 至Method of preparing nano-level platinum/carbon electrocatalyst for cathode of fuel cell | 法律状态 | 说明书摘要 | The present invention relates to a method for preparing nano-level Pt/C electrocatalyst for cathode of fuel cell. By employing ammonium chloride, potassium chloride, ammonium bromide, potassium bromide, ammonium iodide or potassium iodide as anchoring agent for the chloroplatinic acid, the present invention realizes the preparation of Pt/C electrocatalyst with platinum micro-particles homogeneously distributed in the interstices as well as on the surfaces of the active carbon. The sizes of the platinum particles in the catalyst are homogeneous and their average diameter is in the range of 2.5 to 4.5 mm. The present method is a novel one for preparing nanometer level Pt/C electrocatalyst. Said electrocatalyst possesses high specific activity per unit mass for the catalytic reduction of oxygen. |
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