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Electrocatalytic Oxidation of Hydrogen Peroxide at a Sol‐gel Derived Carbon Ceramic Electrode Modified with Copper Iodide
Author(s) -
KarimNezhad Ghasem,
Pashazadeh Sara,
Pashazadeh Ali
Publication year - 2013
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201300262
Subject(s) - chemistry , hydrogen peroxide , amperometry , cyclic voltammetry , electrode , palladium hydrogen electrode , iodide , inorganic chemistry , exchange current density , catalysis , copper , quinhydrone electrode , reversible hydrogen electrode , carbon fibers , working electrode , electrochemistry , composite material , materials science , organic chemistry , composite number , tafel equation
A novel modified carbon ceramic electrode using CuI as modifier was fabricated. The copper iodide modified sol‐gel derived carbon ceramic (CIM‐SGD‐CC) electrode has high catalytic ability for electrooxidation of hydrogen peroxide. The charge transfer coefficient (α) and exchange current density (j 0 ) for the modified electrode were calculated. It has been shown that using the CIM‐SGD‐CC electrode, hydrogen peroxide can be determined by cyclic voltammetry and amperometry with limit of detections 26 and 0.31 μmol L −1 , respectively. The advantages of the modified CCE are its good stability and reproducibility of surface renewal by simple polishing, excellent catalytic activity.