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单壁碳纳米管负载Pt基二元金属催化剂对甲醇和乙醇氧化的电催化性能研究 被引量：1

Research on Electrocatalytic Activity of Carbon Nanotube-Supported Pt-bimetallic Nanoparticles for Methanol and Ethanol Oxidations
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摘要 用单壁碳纳米管(SWCNT)作为载体制备得到Pt,Pt-Fe,Pt-Co和Pt-Ni催化剂,并用循环伏安法和电化学阻抗谱法研究各催化剂对甲醇和乙醇氧化的电化学催化性能。对于甲醇和乙醇的氧化,Pt-Fe/SWCNT,Pt-Co/SWCNT和Pt-Ni/SWCNT电催化活性依次增强,抗中毒性能依次减弱。与Pt/SWCNT催化剂相比,Pt-Ni/SWCNT对甲醇氧化的电催化性能更强,是很好的直接甲醇燃料电池催化剂材料;而对于乙醇的氧化,Pt/SWCNT具有更高的电催化性能。 Pt, Pt-Fe, Pt-Co, and Pt-Ni nanoparticles were synthesized on single-walled carbon nanotubes （SWCNT）, and their effects on electrocatalytic activity for methanol and ethanol oxidations were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. Followed by the order of Pt-Fe/SWCNT, Pt-Co/SWCNT and Pt-Ni/SWCNT, the catalysts demonstrate better electrocatalytic activities for both methanol and ethanol oxidations, but less tolerance to CO poisoning. In comparison to Pt/SWCNT, Pt-Ni/SWCNT exhibits better catalytic characteristics for methanol oxidation, and Pt- Ni/SWCNT could be a desirable catalyst candidate for direct methanol fuel cells. However, for ethanol oxidation, Pt/SWCNT has better catalytic characteristics than Pt-Ni/SWCNT.
作者 董红周 董立峰
机构地区 青岛科技大学材料科学与工程学院 密苏里州立大学物理、天文和材料科学系
出处 《材料研究学报》 EI CAS CSCD 北大核心 2011年第6期579-584,共6页 Chinese Journal of Materials Research
基金 山东省泰山学者建设工程 山东省自然科学杰出青年基金JQ201118 国家自然科学基金51172113 美国化学学会青年科学基金47532-GB10 科学发展基金资助项目~~
关键词 无机非金属材料 燃料电池 甲醇 乙醇 电催化性能 单壁碳纳米管 Pt基催化剂 inorganic non-metallic materials, fuel cell, methanol, ethanol, electrocatalytic activity,single-walled carbon nanotube, Pt-based catalyst
分类号 TM911.4 [电气工程—电力电子与电力传动]
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参考文献18

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材料研究学报
2011年 第6期

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