石墨烯负载铂催化剂的制备及稳定性

被引：7

作者：

卢立新 ^{[1
]}

王新东 ^{[1
,2
]}

机构：

[1] 北京科技大学冶金与生态工程学院

[2] 北京科技大学高效钢铁冶金国家重点实验室

来源：

有色金属科学与工程 | 2015年 / 6卷 / 03期

基金：

国家基础研究计划;

关键词：

石墨烯; 铂催化剂; 催化性能; 稳定性;

D O I：

10.13264/j.cnki.ysjskx.2015.03.008

中图分类号：

O643.36 [催化剂]; TM911.4 [燃料电池];

学科分类号：

081705 ; 0808 ;

摘要：

以天然石墨粉为原料,制备了氧化石墨(GO),再以GO和氯铂酸(H2Pt Cl6)为前驱体,乙二醇作为溶剂和还原剂,通过浸渍还原法成功制备出铂和石墨烯的复合催化剂(Pt/GR).利用X射线衍射仪、场发射扫描电镜和拉曼光谱仪对样品进行了形貌表征,结果表明Pt颗粒均匀分布在石墨烯的表面,相对于单质,负载有Pt的石墨烯表面更加褶皱且石墨烯片层更加分散.对Pt/GR进行电化学测试并与商用Pt黑催化剂进行对比,结果显示Pt/GR催化剂具有更高的电化学活性面积(ESCA)和更好的电催化性能,相对于Pt黑催化剂,Pt/GR具有更好的电化学稳定性.

引用

页码：40 / 44

页数：5

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