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郭瑞华.基于不同碳载体的直接乙醇燃料电池阳极Pt基催化剂的制备及性能表征[J].稀有金属材料与工程(英文),2019,48(7):2284~2291.[guoruihua.Preparation and Characterization of Anode Pt-based Catalysts for Direct Ethanol Fuel Cells Based on Different Carbon Carriers[J].Rare Metal Materials and Engineering,2019,48(7):2284~2291.]
Preparation and Characterization of Anode Pt-based Catalysts for Direct Ethanol Fuel Cells Based on Different Carbon Carriers
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Received:May 18, 2018  Revised:July 04, 2018
DOI:
Key words: Direct ethanol fuel cell  Carbon carrier  Electrocatalyst  Catalytic oxidation performance
Foundation item:国家自然科学基金资助(51474133),内蒙古科技大学材料与冶金学院青年人才孵化器平台资助项目资助(2014CY012)
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guoruihua  
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Abstract:
      In this paper, activated carbon, mesoporous carbon, carbon nanotubes and graphene were used as catalyst carriers, CeO2 was added as cocatalyst, and five groups of catalysts were prepared by microwave-assisted glycol reduction of chloroplatinic acid. X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron energy spectrum (EDAX), specific surface area and pore size analyzer (BET), and X-ray photoelectron spectroscopy (XPS) were used to characterize the microstructure of CeO2 and catalysts. The electrochemical performance of the catalysts was tested by electrochemical workstation. The results showed that the catalyst synthesized with graphene as the carrier and CeO2 as the co-catalyst have the best activity, stability and resistance to poisoning for the catalytic oxidation of ethanol. The electrochemical active area is 86.83 m2/g, the peak current density value is 751.03 A/g, the activation energy for the catalytic oxidation of ethanol is the lowest and the steady state current density at 1100s is 67.33 A/g.