A new method for synthesizing high performance few-layer graphene supported Pt electrocatalysts in methanol and ethanol oxidation
Here, new catalysts for application in the Direct Alcohol Fuel Cells (DMFC and DEFC), comprising of 1–8 wt% Pt dispersed on few layer graphene (FLG), are successfully synthesized, by means of a rapid, simple, inexpensive and environmentally friendly one-pot method. The mass activity of the PFG3 cata...
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| Veröffentlicht in: | Electrochimica acta 2021-06, Vol.380, p.138258, Article 138258 |
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| container_title | Electrochimica acta |
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| creator | Vu, Thu Ha Thi Nguyen, Thao Thi Nguyen, Tien Hoang Nguyen, Minh Dang Nguyen, Quang Minh |
| description | Here, new catalysts for application in the Direct Alcohol Fuel Cells (DMFC and DEFC), comprising of 1–8 wt% Pt dispersed on few layer graphene (FLG), are successfully synthesized, by means of a rapid, simple, inexpensive and environmentally friendly one-pot method. The mass activity of the PFG3 catalyst for methanol, in acid and alkaline media, was 25,243 mA mgPt−1 and 112,882 mA mgPt−1, respectively; for ethanol, in acid and alkaline media, was 25,000 mA mgPt−1 and 65,272 mA mgPt−1, respectively. These values were from tens to hundreds of times higher than those recently published for graphene-support Pt electrocatalysts. Our results suggest that the one-pot synthesis method result in simultaneous exfoliation, reduction and deposition during microwave irradiation in a very short time for producing catalysts with extremely high electrochemical performance, which may be effective alternative method for synthesis of electrocatalysts for DMFC and DEFC. |
| doi_str_mv | 10.1016/j.electacta.2021.138258 |
| format | Article |
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The mass activity of the PFG3 catalyst for methanol, in acid and alkaline media, was 25,243 mA mgPt−1 and 112,882 mA mgPt−1, respectively; for ethanol, in acid and alkaline media, was 25,000 mA mgPt−1 and 65,272 mA mgPt−1, respectively. These values were from tens to hundreds of times higher than those recently published for graphene-support Pt electrocatalysts. 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| subjects | Catalysts Electrocatalysts Electrochemical analysis Ethanol Ethanol oxidation Exfoliation-reduction-decomposition Fuel cells Graphene Low Pt content electrocatalyst Methanol Methanol oxidation One-pot synthesis Oxidation Synthesis |
| title | A new method for synthesizing high performance few-layer graphene supported Pt electrocatalysts in methanol and ethanol oxidation |
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