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Electrochemical reduction of CO2 using palladium modified boron-doped diamond electrodes: enhancing the production of CO

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Abstract

In recent years, boron-doped diamond (BDD) has been utilized as an electrode for the electrochemical reduction of CO2, and several reports have been published on this. The wide potential window of BDD enables the hydrogen evolution reaction, which competes with CO2 reduction, to be suppressed. On the other hand, the high overpotential is still a problem. We attempted to overcome this problem by depositing metal on the BDD electrode. Pd metal was chosen to modify the surface of the BDD electrode (PdBDD). Employing this electrode at a lower potential of −1.6 V vs. Ag/AgCl, we increased the production of CO (53.3% faradaic efficiency) from the reduction of CO2. We present various attempts made to improve the CO production.

Graphical abstract: Electrochemical reduction of CO2 using palladium modified boron-doped diamond electrodes: enhancing the production of CO

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Publication details

The article was received on 12 Mar 2019, accepted on 05 Apr 2019 and first published on 06 Apr 2019


Article type: Paper
DOI: 10.1039/C9CP01409H
Phys. Chem. Chem. Phys., 2019, Advance Article

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    Electrochemical reduction of CO2 using palladium modified boron-doped diamond electrodes: enhancing the production of CO

    P. K. Jiwanti and Y. Einaga, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C9CP01409H

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