Development of pulsed deposited manganese and molybdenum oxide surfaces decorated with platinum nanoparticles and their catalytic application for formaldehyde oxidation
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Date
2016
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Abstract
Manganese and molybdenum mixed oxides were co-deposited in a thin film form by pulsed deposition technique on a glassy carbon substrate, and this mixed oxide film was further decorated with platinum nanoparticles. Formaldehyde, being a candidate for proton exchange membrane fuel cell applications, was chosen as the test material for the catalytic activities of the developed surface in alkaline media. The synergetic effect of the mixed metal oxide deposit incorporating Pt nanoparticles was verified by using different mol ratios of the corresponding metal ions and applying pulsed deposition conditions and under optimized conditions and, resultant oxidation peak has shown a significant increase in the peak current accompanied by the small shift in the peak potential. The modified composite electrodes were characterized by SEM, EDX, XPS and EIS. © 2016 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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Keywords
Carbon , Catalyst activity , Catalytic oxidation , Deposition , Formaldehyde , Fuel cells , Manganese , Manganese oxide , Metal ions , Metal nanoparticles , Metallic compounds , Metals , Molybdenum , Nanoparticles , Oxide films , Platinum , Proton exchange membrane fuel cells (PEMFC) , Carbon substrates , Catalytic applications , Formaldehyde oxidation , Mixed metal oxide , Modified composites , Optimized conditions , Platinum nano-particles , Pulsed deposition , Molybdenum oxide