Fabrication of palladium coated nanoporous gold film electrode via underpotential deposition and spontaneous metal replacement: A low palladium loading electrode with electrocatalytic activity |
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Authors: | Abolfazl Kiani Effat Nekooiy Fard |
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Affiliation: | aDepartment of Chemistry, Faculty of Science, University of Isfahan, Isfahan, Iran |
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Abstract: | An electrochemical approach to nanoporous film-based gold catalyst design using the underpotential deposition and redox replacement technique is presented. The procedure consisted of the underpotential deposition (UPD) of copper on the gold nanoporous film, with subsequent replacement of the copper by palladium at open circuit in a palladium containing solution. The resulting electrode was studied using cyclic voltammetry and scanning electron microscopy. The electrocatalytic activity of as-prepared palladium nanoporous gold film electrodes toward the oxygen reduction reaction is presented. |
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Keywords: | Palladium Nanoporous gold Electrocatalysis Oxygen reduction reaction Underpotential deposition |
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