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

S Sharma; A Gunguly; P Papakonstantinou; X Miao; M Li; JL Hutchison; M. Delichatsios; S Ukleja

doi:10.1021/jp107872z

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

S Sharma, A Gunguly, P Papakonstantinou, X Miao, M Li, JL Hutchison, M. Delichatsios, S Ukleja

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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

Original language	English
Pages (from-to)	19459-19466
Journal	Journal Of Physical Chemistry C
Volume	114
DOIs	https://doi.org/10.1021/jp107872z
Publication status	Published (in print/issue) - 25 Sept 2010

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@article{f07108428a5b4468a38961014343c832,

title = "Rapid Microwave Synthesis of CO Tolerant Reduced Graphene Oxide-Supported PlatinumElectrocatalysts for Oxidation of Methanol",

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",

author = "S Sharma and A Gunguly and P Papakonstantinou and X Miao and M Li and JL Hutchison and M. Delichatsios and S Ukleja",

year = "2010",

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doi = "10.1021/jp107872z",

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journal = "Journal Of Physical Chemistry C",

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T1 - Rapid Microwave Synthesis of CO Tolerant Reduced Graphene Oxide-Supported PlatinumElectrocatalysts for Oxidation of Methanol

AU - Sharma, S

AU - Gunguly, A

AU - Papakonstantinou, P

AU - Miao, X

AU - Li, M

AU - Hutchison, JL

AU - Delichatsios, M.

AU - Ukleja, S

PY - 2010/9/25

Y1 - 2010/9/25

N2 - 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

AB - 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

U2 - 10.1021/jp107872z

DO - 10.1021/jp107872z

M3 - Article

SN - 1932-7455

VL - 114

SP - 19459

EP - 19466

JO - Journal Of Physical Chemistry C

JF - Journal Of Physical Chemistry C

ER -

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

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