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Rapid Microwave Synthesis of CO Tolerant Reduced Graphene Oxide-Supported PlatinumElectrocatalysts for Oxidation of Methanol

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Sharma, S, Gunguly , A, Papakonstantinou, P, Miao, X, Li, M, Hutchison, JL, Delichatsios, M. and Ukleja, S (2010) Rapid Microwave Synthesis of CO Tolerant Reduced Graphene Oxide-Supported PlatinumElectrocatalysts for Oxidation of Methanol. Journal Of Physical Chemistry C, 114 . pp. 19459-19466. [Journal article]

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URL: http://pubs.acs.org.ezproxy.qub.ac.uk/doi/abs/10.1021/jp107872z?prevSearch=%255Babstract%253A%2Bgraphene%255D&searchHistoryKey=

DOI: 10.1021/jp107872z

Abstract

Reduced graphene oxide/platinum supported electrocatalysts (Pt/RGO) were synthesized by employing a fast and eco-friendly microwave-assisted polyol process, which facilitated the simultaneous reduction of graphene oxide and formation of Pt nanocrystals. This system was tested for potential use as an anode material through the electrooxidation of methanol. Compared to the commercial carbon-supported Pt electrocatalysts, the Pt/RGO showed an unprecedented CO poisoning tolerance, high electrochemical active surface area, and high catalytic mass activity for methanol oxidation reaction, demonstrated by increases of 110, 134, and 60%, respectively. We found that the high concentration of oxygen functional groups on reduced graphene oxide plays a major role on the removal of carbonaceous species on the adjacent Pt sites, underlining a synergetic effect between the oxygen moieties on graphene support and Pt nanoparticles. The present microwave assisted synthesis of Pt/RGO provides a new path to prepare electrocatalysts with excellent electrocatalytic activity and CO tolerance, which is of great significance in energy-related applications

Item Type:Journal article
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Computing & Engineering
Faculty of Art, Design and the Built Environment > School of the Built Environment
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Built Environment Research Institute
Engineering Research Institute
Built Environment Research Institute > Fire Safety and Engineering Research and Technology Centre (FireSERT)
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:16183
Deposited By:Professor Pagona Papakonstantinou
Deposited On:08 Nov 2010 09:34
Last Modified:12 Nov 2010 12:05

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