Electrocatalytic activity of a cobalt hexacyanoferrate modified glassy carbon electrode toward ascorbic acid oxidation |
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Authors: | Chen-Xin Cai Kuan-Hong Xue Shi-Min Xu |
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Institution: | Department of Chemistry, Nanjing Normal University, Nanjing 210097, PR China |
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Abstract: | A cobalt hexacyanoferrate (CoHCF) modified glassy carbon (CoHCF/GC) electrode was prepared electrochemically. The voltammetric responses of CoHCF are stable and the electrochemical behaviour is related to the concentrations of supporting electrolyte and counterions. The CoHCF/GC electrode shows electrocatalytic activity toward the oxidation of ascorbic acid in phosphate buffer solution. The electrocatalytic rate constant of the CoHCF/GC electrode for the oxidation of ascorbic acid is determined using rotating disk electrode measurements. |
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Keywords: | Electrocatalysis Chemically modified electrode Ascorbic acid Cobalt hexacyanoferrate |
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