Preparation of nano-platinum and its catalytic activity toward methanol oxidation and oxygen reduction

摘要：

Nano-scale platinum catalysts were prepared on a glass carbon electrode by cyclic voltammetry.The surface morphology and active area of the catalysts,and their catalytic activity toward methanol oxidation and oxygen reduction were studied by SEM,linear and cyclic voltammetry.The result shows that the diameters of global Pt particles are affected by the scan rate of cyclic voltammetry: the faster the scan rate is,the smaller the diameters of Pt particles are.The size of the nano-scale platinum catalysts has different effects on their catalytic activity toward oxygen reduction and methanol oxidation: the catalyst with a size of 100 nm shows its best activity toward methanol oxidation,but the catalyst with a size of 65 nm shows its best activity toward oxygen reduction.

关键词： nano platinum catalysis methanol oxidation oxygen reduction

作者: HUANG You-ju DAI Hong-hai LI Wei ZHANG Qing-long ZHAO Ling-zhi LI Wei-shan

作者单位: Department of Chemistry,South China Normal University,Guangzhou 510006,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）