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A Bifunctional Electrocatalyst Containing Tris(2,2′‐bipyridine) Ruthenium(II) and 12‐Molybdophosphate Bulk‐Modified Carbon Paste Electrode
Author(s) -
Wang XiuLi,
Han ZhengBo,
Wang EnBo,
Zhang Hong,
Hu ChangWen
Publication year - 2003
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/elan.200302668
Subject(s) - electrocatalyst , bifunctional , ruthenium , 2,2' bipyridine , inorganic chemistry , cyclic voltammetry , chemistry , hydrogen peroxide , electrochemistry , bipyridine , electrode , catalysis , organic chemistry , crystal structure
The electroactive composite containing tris(2,2′‐bipyridine) ruthenium(II) and 12‐molybdophosphate (RuPMo 12 ) was synthesized and first used as a bifunctional electrocatalyst to fabricate a chemically bulk‐modified carbon paste electrode (RuPMo 12 ‐CPE) by direct mixing. The electrochemical behavior of the RuPMo 12 ‐CPE was studied by cyclic voltammetry. The RuPMo 12 ‐CPE presents good electrocatalytic activity not only toward the reduction of hydrogen peroxide and bromate, which is attributed to the function of molybdophosphate, but also toward the oxidation of arsenite, which is primarily attributed to the function of tris(2,2′‐bipyridine) ruthenium(II). The remarkable advantage of the RuPMo 12 ‐CPE is its good stability owing to the insolubility of RuPMo 12 and reproducibility of surface renewal.