Anthraquinone-2-Carboxylic-Allyl Ester as a New Electrocatalyst for Dioxygen Reduction to Produce H2O2
The irreversibly adsorbed anthraquinone-2-carboxylic-allyl ester (abbreviated as ACAE) on a graphite electrode displays strong electrocatalytical activity for the two-electron reduction of oxygen to form hydrogen peroxide. The surface electrochemistry of ACAE was examined by cyclic voltammetry. A tw...
| Published in: | International Journal of Electrochemical Science |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2006-07-01
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| Subjects: | |
| Online Access: | http://www.electrochemsci.org/papers/1030099.pdf |
| Summary: | The irreversibly adsorbed anthraquinone-2-carboxylic-allyl ester (abbreviated as ACAE) on a graphite electrode displays strong electrocatalytical activity for the two-electron reduction of oxygen to form hydrogen peroxide. The surface electrochemistry of ACAE was examined by cyclic voltammetry. A two-electron, two-proton electrochemical redox process of the quinone group in the ACAE molecule was identified. A rotating disk electrode method was used to obtain the kinetic parameters of the electrocatalyzed reduction of oxygen. The high selectivity of ACAE for the two-electron reduction of oxygen in pH<7 aqueous solution was demonstrated. The possible application of ACAE in H2O2 production is also explored in this paper. |
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| ISSN: | 1452-3981 |