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预沉淀法制备直接甲醇燃料电池的Pt-Fe/C阴极催化剂

Cathodic Pt-Fe/C Catalyst in Direct Methanol Fuel Cell Prepared with Predeposited Method

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【作者】 王彦恩唐亚文陈煜周益明邢巍高颖陆天虹

【Author】 Wang Yanen~1, Tang Yawen~1, Chen Yu~1, Zhou Yiming~1,Xing Wei~2, Gao Ying~3, Lu Tianhong~ 1,2 (1. School of Chemistry and Environmental Science, Nanjing Normal University,Nanjing 210097, China) (2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) (3. Department of Chemistry, Harbin Normal University, Harbin 150080, China)

【机构】 南京师范大学化学与环境科学学院中国科学院长春应用化学研究所哈尔滨师范大学理化学院化学系南京师范大学化学与环境科学学院 江苏南京210097江苏南京210097长春130022哈尔滨150080

【摘要】 用预沉淀法制备了炭载Pt-Fe(Pt-Fe/C)和炭载Pt(Pt/C)催化剂.发现Pt-Fe/C催化剂对氧还原的电催化活性比Pt/C催化剂高,但对甲醇氧化的电催化活性比Pt/C催化剂差.即使在电解液中有甲醇存在时,Pt-Fe/C催化剂对氧还原的电催化活性仍比Pt/C催化剂高.所以,Pt-Fe/C催化剂适合于用作直接甲醇燃料电池(DMFC)中的阴极催化剂.

【Abstract】 The Pt-Fe/C and Pt/C catalysts were prepared with predeposited method. It was found that the electrocatalytic activity of the Pt-Fe/C catalyst for the oxygen reduction is higher than that of the Pt/C catalyst. However, the electrocatalytic activity of the Pt-Fe/C catalyst for the methanol oxidation is lower than that of the Pt/C catalyst. Even in the presence of methanol in the electrolyte solution, the electrocatalytic activity of the Pt-Fe/C catalyst for the oxygen reduction is still higher than that of the Pt/C catalyst. Therefore, the Pt-Fe/C catalyst is suitable to be used as the cathodic catalyst in DMFC.

【基金】 科技部“973”基金(G2000026408);“863”基金(2003AA517060);国家自然科学基金(20373068、20433060、20573057、20573029);江苏省自然科学基金(BK2006224);江苏省高校自然科学基金(05KJB150061)资助项目.
  • 【文献出处】 南京师大学报(自然科学版) ,Journal of Nanjing Normal University(Natural Science) , 编辑部邮箱 ,2006年04期
  • 【分类号】TM911.4
  • 【被引频次】1
  • 【下载频次】296
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