利用X射线粉末衍射、透射电镜和扫描电镜对商用Pt/C催化剂反应前后的变化进行了物化表征,同时应用电化学方法研究了甲醇在碳载铂纳米微粒修饰的玻碳电极上的电催化氧化性能.结果表明,修饰电极对甲醇氧化呈现较高的电催化活性.铂氧化物的电化学还原在Pt/C催化剂中受到了抑制,该现象可能是由于Pt与载体碳间的强烈作用所引起的.通过扫描电镜和循环伏安研究表明,该催化剂对甲醇的氧化可能存在着表面结构敏感效应.
参考文献
[1] | Ren X;Piotr Z;Sharon T;John D, Shimshon G .[J].Journal of Power Sources,2000,86:111. |
[2] | Wilson M S;Garzon F H;Sickafus K E;Gottesfeld S .[J].Journal of the Electrochemical Society,1993,140:2872. |
[3] | Antolini E. .Formation of carbon-supported PtM alloys for low temperature fuel cells: a review [Review][J].Materials Chemistry and Physics,2003(3):563-573. |
[4] | Zinola C F;Luna A M C .[J].Journal of Applied Electrochemistry,1994,25:531. |
[5] | Morimoto Y;Yeager E B .[J].Journal of Electroanalytical Chemistry,1998,444:95. |
[6] | Zubimendi J L;Andreasen G;Triaca W E .[J].Electrochimica Acta,1995,40:1305. |
[7] | Feltham A M;Spiro M .[J].Chemical Reviews,1971,71:177. |
[8] | Attwood P A;Mcnicol B D;Short R T .[J].Journal of Applied Electrochemistry,1980,10:213. |
[9] | Manoharan R;Prabhuram J .[J].Journal of Power Sources,2001,96:220. |
[10] | Shen P K;Chen K Y;Tseung A C C .[J].Journal of the Chemical Society,Faraday Transactions,1994,90:3089. |
[11] | Mcnicol B D .[J].Journal of Electroanalytical Chemistry,1981,118:71. |
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