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Underpotential Deposition Preparation of Pt‐loading AuNPs/Reduced Graphene Oxide and Its Catalytic Detection of Catechol
Author(s) -
Wang Cong,
Guo Zhihua,
Zhang Li,
Zhang Na,
Zhang Keying,
Fei Bailu,
Wang Hongyan,
Xu Jigui,
Shi Hongwei,
Qin Miao,
Ren Lei,
Wu Xingxing
Publication year - 2016
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201600388
Subject(s) - hydroquinone , chemistry , catechol , graphene , underpotential deposition , oxide , catalysis , inorganic chemistry , monolayer , detection limit , nuclear chemistry , electrode , electrochemistry , cyclic voltammetry , chemical engineering , organic chemistry , chromatography , biochemistry , engineering
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.