High performance gold-supported platinum electrocatalyst for oxygen reduction |
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| Affiliation: | 1. Faculté de Sciences, Service de Chimie Analytique et Chimie des Interfaces, Université Libre de Bruxelles, CP 255, Boulevard du Triomphe, B-1050 Brussels, Belgium;2. Department of Metallurgy, Electrochemistry and Materials Science, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium;1. Department of Mechanical Engineering, Brawijaya University, Indonesia;2. Department of Chemical Engineering, Brawijaya University, Indonesia;1. Dr. M.A Kazi Institute of Chemistry, University of Sindh Jamshoro, Sindh, 76080, Pakistan;2. Far East and South East Asia Study Center, University of Sindh, Jamshoro, 76080, Sindh, Pakistan;3. Institute of Plant Science University of Sindh Jamshoro, Sindh, 76080, Pakistan;4. Institute of Chemistry University of Shah Abdul Latif University Khairpur Mirs, Sindh Pakistan;5. Institute of Physics University of Shah Abdul Latif University Khairpur Mirs, Sindh Pakistan;6. Department of Electrical Engineering, Mehran UET, SZAB Campus, Mirs, Khairpur, 76080 Sindh, Pakistan;1. College of Chemistry and Environment Engineering, Shanghai Institute of Technology, Shanghai 201418, China;2. Shanghai Academy of Spaceflight Technology, China;3. Shanghai Institute of Space Power-Sources, Shanghai 200245, China;4. Key Laboratory of Power Station Energy Transfer Conversion and System of MOE, Institute of Energy Power Innovation, North China Electric Power University, Beijing 102206, China;1. Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad 431004, MH, India;2. National Centre for Nanosciences and Nanotechnology, University of Mumbai, Mumbai 400098, (MH) India;3. Department of Chemistry, Shivaji University, Kolhapur, 416004, MH, India |
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| Abstract: | High performance gold-supported Pt electrocatalyst for the reduction of oxygen was prepared by replacing Cu adlayers, deposited potentiostatically on Au, with Pt at open-circuit potential in a 0.1 M HCl solution containing K2PtCl6. Auger Electron Spectroscopy and Atomic Force Microscopy reveal the surface modification. The kinetics of oxygen reduction on this platinum modified electrode was studied by the rotating-disc electrode technique. The activity of the electrode is lower than the activity of a smooth Pt electrode in the negative potential scan, but it is significantly higher in the positive scan. |
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