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The Preparation and Characterization of the Mo‐S‐Ag Modified Electrode and Its Electrocatalytic Effect on the Oxidation of Ascorbic Acid
Author(s) -
Zhu JunJie,
Ye XiangRong,
Chen HongYuan,
Xin XinQuan,
Qian KePing
Publication year - 1998
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/(sici)1521-4109(199807)10:8<579::aid-elan579>3.0.co;2-c
Subject(s) - ascorbic acid , electrode , palladium hydrogen electrode , quinhydrone electrode , chemically modified electrode , chemistry , inorganic chemistry , adsorption , differential pulse voltammetry , x ray photoelectron spectroscopy , electrochemistry , working electrode , nuclear chemistry , materials science , cyclic voltammetry , chemical engineering , organic chemistry , food science , engineering
A new type of chemically modified electrode, named Mo‐S‐Ag cluster modified electrode, was prepared by adsorption of MoS 4 2– on the surface of a silver electrode. The modified electrode was characterized by spectroscopic methods, including FT‐IR, FT‐Raman, XPS and AES. The experimental results indicated that MoS 4 2– was bound to the surface of a silver electrode, forming Mo‐S‐Ag ‘bridges’. The modified electrode possessed a strong electrocatalytic activity towards the oxidation of ascorbic acid (AA). Differential pulse voltammetric response (DPV) at the modified electrode also showed good results.