Underpotential Deposition Preparation of Pt-loading AuNPs/Reduced Graphene Oxide and Its Catalytic Detection of Catechol
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- 作者：Cong Wang ; Zhihua Guo ; Li Zhang ; Na Zhang ; Keying Zhang ; Bailu Fei ; Hongyan Wang ; Jigui Xu ; Hongwei Shi ; Miao Qin ; Lei Ren and Xingxing Wu
- 刊名：Chinese Journal of Chemistry
- 出版年：2016
- 出版时间：November, 2016
- 年：2016
- 卷：34
- 期：11
- 页码：1151-1157
- 全文大小：1305K
- ISSN：1614-7065
文摘
Ultralow Pt-loading Au nanoparticles have been fabricated on the surface of reduced graphene oxide (RGO) by using underpotential deposition (UPD) monolayer redox replacement process. The Pt/Au/RGO modified electrode exhibits an excellent electrocatalytic activity toward catechol and hydroquinone. Under the optimized condition, the separation of peak-to-peak between hydroquinone and catechol is 197 mV, which is wide enough to distinguish the isomers of benzenediol. Catechol is detected by the Pt/Au/RGO/GCE with a low detection limit in the presence of hydroquinone.