The deposition of Au-Pt core-shell nanoparticles on reduced graphene oxide and their catalytic activity
The deposition of Au-Pt core-shell nanoparticles on reduced graphene oxide and their catalytic activity
复制标题
Au-Pt核壳纳米粒子在还原氧化石墨烯上的沉积及其催化活性
DOI：
10.1088/0957-4484/24/29/295402
复制
发表时间：
2013-07-26
期刊：
影响因子：
3.5
通讯作者：
Li, Yongxin
中科院分区：
文献类型：
--
作者：
Cui, Xiu;Wu, Shengnan;Li, Yongxin
Au-Pt core-shell nanoparticles have been synthesized on a reduced graphene oxide (RGO) surface by an under-potential deposition (UPD) redox replacement technique, which involves redox replacement of a copper UPD monolayer by PtCl42- that could be reduced and deposited simultaneously. Scanning electron microscopy (SEM) and electrochemical methods have been used to characterize the graphene decorated with Au-Pt core-shell nanoparticles. The electrochemical experiments show that the materials exhibit excellent catalytic activity towards the oxygen reduction reaction and the methanol oxidation reaction. It is believed that the high-performance of this new catalyst is due to the ultrathin Pt shell on the Au nanoparticles surface and the oxygen-containing functional groups on the RGO surface.
