Effect of over-oxidation treatment of Pt―Co/polypyrrole-carbon nanotube catalysts on methanol oxidation
Effect of over-oxidation treatment of Pt―Co/polypyrrole-carbon nanotube catalysts on methanol oxidation
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DOI：
10.1016/j.ijhydene.2009.02.079
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发表时间：
2009-05
影响因子：
7.2
通讯作者：
Hongbin Zhao;Jun Yang;Lei Li;Hong Li;Jiulin Wang;Yongming Zhang
中科院分区：
文献类型：
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作者：
Hongbin Zhao;Jun Yang;Lei Li;Hong Li;Jiulin Wang;Yongming Zhang
采用甲醛还原法在聚吡咯（PPy）-多壁碳纳米管（MWCNT）复合材料上共沉积Pt-Co双金属纳米粒子，制备了直接甲醇燃料电池（DMFC）阳极催化剂。采用原位聚合法在多壁碳纳米管（MWCNT）上制备了聚吡咯多壁碳纳米管（PPy-MWCNT）载体。考察了该催化剂对甲醇氧化的电化学活性及其重要影响因素。过氧化处理后的Pt-Co/PPy-MWCNT复合材料对DMFC具有较高的催化活性和潜在的应用价值。
Bimetallic Pt–Co nanoparticles were co-deposited on polypyrrole (PPy)-multiwalled carbon nanotube (MWCNT) composite by formaldehyde reduction route to develop an anode catalyst for direct methanol fuel cells (DMFCs). PPy-MWCNT support was prepared by in situ polymerization of pyrrole on MWCNT. The electrochemical activity of this catalyst towards methanol oxidation and the important influencing factors have been investigated. The Pt–Co/PPy-MWCNT composite via over-oxidation treatment shows higher catalytic activity and potential application value for DMFCs.