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Assembly of the Transition Metal Substituted Polyoxometalates ZnW 11 M(H 2 O)O $\rm{ {_{39}^{n-}}}$ (M=Mn, Cu, Fe, Co, Cr, Ni, Zn) on 4‐Aminobenzoic Acid Modified Glassy Carbon Electrode and Their Electrochemical Study
Author(s) -
Liu Jianyun,
Cheng Long,
Dong Shaojun
Publication year - 2002
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200205)14:9<569::aid-elan569>3.0.co;2-x
Subject(s) - electrochemistry , transition metal , glassy carbon , materials science , electrode , aqueous solution , metal , inorganic chemistry , carbon fibers , layer (electronics) , chemistry , catalysis , cyclic voltammetry , nanotechnology , metallurgy , organic chemistry , composite number , composite material
Through layer‐by‐layer assembly, a series of undecatungstozincates monosubstituted by first‐row transition metals, ZnW 11 M(H 2 O)O $\rm{ {_{39}^{n-}}}$ (M=Cr, Mn, Fe, Co, Ni, Cu or Zn) were first successfully immobilized on a 4‐aminobenzoic acid modified glassy carbon electrode surface. The electrochemical behaviors of these polyoxometalates were investigated. They exhibit some special properties in the films different from those in homogeneous aqueous solution. The Cu‐centered reaction mechanism in the ZnW 11 Cu multilayer film was described. The electrocatalytic behaviors of these multilayer film electrodes to the reduction of H 2 O 2 and BrO $\rm{ {_{3}^{-}}}$ were comparatively studied.