直接甲醇燃料电池的耐甲醇阴极电催化剂炭载四羧基酞菁钴的研究  

Studies on Methanol-tolerant Cathode Electrocatalysts Cobalt Tetracarboxylic Phthalocyanine Supported on Carbon Black(CoPcTc/C) in Direct Methanol Fuel Cell

作　　者：李旭光[1] 邢巍[1] 陆天虹[1] 季怡萍[1] 梁宏莹[2] 邵允[2] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022 [2]东北师范大学化学学院,长春130024

出　　处：《高等学校化学学报》2003年第7期1246-1250,共5页Chemical Journal of Chinese Universities

基　　金：国家"973"项目 (批准号 :G2 0 0 0 0 2 6 40 8);"86 3"项目 (批准号 :2 0 0 1AA 32 0 30 6 );吉林省自然科学基金 (批准号 :2 0 0 0 0 5 10 )资助

摘　　要：比较了甲醇对 Pt/C和炭载四羧基酞菁钴 (Co Pc Tc/C)催化氧还原性能的影响 .结果表明 ,甲醇使Pt/C催化氧还原的性能严重降低 ,而对经 80 0℃热处理的 Co Pc Tc/C(Co Pc Tc/C-80 0 )基本没有影响 ;并且Co Pc Tc/C-80 0催化氧还原的性能优于经其它温度热处理的 Co Pc Tc/C,Co Pc Tc/C-80 0是一种较好的直接甲醇燃料电池的耐甲醇阴极电催化剂 .XPS结果表明 ,Co Pc Tc/C-80 0的活性位可能是含 Co N4结构的物质和零价 Co的混合物 .The electrocatalytic performance of Pt/C and cobalt tetracarboxylic phthalocyanine supported on carbon black(CoPcTc/C) for oxygen reduction were compared. The results showed that the presence of methanol reduced seriously the electrocatalytic activities of Pt/C for the oxygen reduction, while it had no effect on that of heat-treated CoPcTc/C at 800 ℃(CoPcTc/C-800). And the electrocatalytic activity of CoPcTc/C-800 for the oxygen reduction was higher than those heat-treated at other temperatures. Therefore, CoPcTc/C-800 was a promising candidate of methanol-tolerant cathode electrocatalyst in DMFC. XPS result reveals that active site of CoPcTc/C-800 may be the composite of CoN 4 and Co 0.

关 键 词：直接甲醇燃料电池 耐甲醇 阴极 电催化剂 炭载四羧基酞菁钴 PT/C 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O646[理学—物理化学]