专利详情

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.