| AucorePtshell础纳米粒子对甲醇氧化的电催化性能研究 |
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| 引用本文： | 鲍芳,姚建林,顾仁敖.AucorePtshell础纳米粒子对甲醇氧化的电催化性能研究[J].电化学,2006,12(2):218-222. |
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| 作者姓名： | 鲍芳 姚建林 顾仁敖 |
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| 作者单位： | 苏州大学化学化工学院,江苏苏州215123 |
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| 基金项目： | 国家自然科学基金（20573076）、高等学校博士学科点专项科研基金（20050285019）,江苏省自然科学基金（BK2005032）资助 |
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| 摘 要： | 应用两步化学还原法制备不同厚度的AucorePtshell纳米粒子，经紫外可见光谱（UV-Vis）、透射电子显微镜（TEM）表征．该金纳米颗粒经化学还原包裹铂后平均粒径明显增大，调节金与铂的含量可获得不同包裹厚度的AucorePtshell纳米粒子．循环伏安法研究表明，粒径为70-80nm的AucorePtshell纳米粒子对甲醇的氧化具有较好的电催化活性，并且其电催化性能随着电位循环扫描次数的增加而增强．
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| 关 键 词： | AucorePtshell纳米粒子 甲醇 电催化 |
| 文章编号： | 1006-3471（2006）02-0218-05 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-02-26 |
Electrochemical Studies on Electrocatalytic Activity of AucorePtshell Nanoparticles to Methanol Oxidation |
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| BAO Fang, Yao Jian-lin, GU Ren-ao.Electrochemical Studies on Electrocatalytic Activity of AucorePtshell Nanoparticles to Methanol Oxidation[J].Electrochemistry,2006,12(2):218-222. |
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| Authors: | BAO Fang Yao Jian-lin GU Ren-ao |
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| Institution: | Department of Chemistry, Suzhou University , Suzhou 215123 , Jiangsu , China |
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| Abstract: | Au_(core)Pt_(shell)nanoparticles with different thicknesses were prepared by using chemical reduction method,and characterized by ultraviolet-visible spectroscopy(UV-Vis),transmission electron microscopy(TEM) and cyclic voltammetry(CV).The electrocatalytic activity of Au_(core)Pt_(shell)nanoparticles with the mean diameter of 70~80 nm to methanol oxidation was investigated by cyclic voltammetry in the acid solution.The results revealed that the prepared core-shell nanoparticles were covered by Pt shell and exhibited the similar optical property and electrocatalytic activity with the normal Pt surface.Moreover,the electrocatalytic activity increased with the electrochemical sweep in the certain potential range.It might be contributed by the special loose structure of Pt shell rather than the increase of the real area. |
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| Keywords: | AucorePtshell nanoparticles Methanol Electrocatalysis |
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