A hydrogen peroxide sensor based on electrochemically roughened silver electrodes |
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| Authors: | Wenping Lian Yonghai Song Huizhen Yuan Sucai Zhao Ping Li Lili Chen |
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| Affiliation: | College of Chemistry and Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, People's Republic of China |
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| Abstract: | Silver (Ag) electrodes were roughened by electrochemical oxidation-reduction cycles (ORC) in a KCl solution. The roughened Ag electrode exhibited a powerful electrocatalytic activity for the reduction of hydrogen peroxide (H2O2). Atomic force microscopy and electrochemical experiments confirmed that the electrocatalytic ability mainly resulted from the Ag nanoparticles produced in the process of ORC on the roughened Ag electrode. The electrochemical behaviors of the roughened Ag electrodes toward the reduction of H2O2 and the factors related to that reduction were investigated in detail. |
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| Keywords: | Roughened Ag electrode Electrocatalytic Hydrogen peroxide Electrochemical oxidation-reduction |
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