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Underpotential Deposition Preparation of Pt‐loading AuNPs/Reduced Graphene Oxide and Its Catalytic Detection of Catechol |
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| Authors: | Cong Wang Zhihua Guo Li Zhang Na Zhang Keying Zhang Bailu Fei Hongyan Wang Jigui Xu Hongwei Shi Miao Qin Lei Ren Xingxing Wu |
| Institution: | 1. Anhui Key Laboratory of Spin Electron and Nanomaterials, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui 234000, China;2. College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, China;3. School of Biology and Food Engineering, Suzhou University, Suzhou, Anhui 234000, China |
| Abstract: | 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. |
| Keywords: | reduced graphene oxide catechol underpotential deposition Pt‐loading Au nanoparticles |