郭瑞华,张捷宇,周国治,安胜利,莫逸杰.直接乙醇燃料电池阳极催化剂Pt-CeO2/C的制备与性能表征[J].稀有金属材料与工程,2018,47(1):383~388.[Guo Ruihua,Zhang Jieyu1,Zhou Guozhi1,An Shengli,Mo Yijie.Preparation and Characterization of Pt-CeO2/C as Catalyst for Direct Ethanol Fuel Cell[J].Rare Metal Materials and Engineering,2018,47(1):383~388.]
直接乙醇燃料电池阳极催化剂Pt-CeO2/C的制备与性能表征
投稿时间:2016-11-30  修订日期:2017-01-19
中文关键词:  直接乙醇燃料电池(DEFC)  中空碳球  CeO2  电催化
基金项目: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)
中文摘要:
      本文用水热合成法,以葡萄糖为原料在不添加有机物模板剂的前提下,制备了尺寸可控的中空碳球为催化剂载体,加入自制的孔径在30nm~40nm范围内,比表面积为126m2/g的花状CeO2为助剂,用微波辅助乙二醇还原氯铂酸法合成了催化剂。利用扫描电镜(SEM)、透射电镜(TEM)、红外光谱(IR)、X射线衍射(XRD)、比表面(BET)对所制备的载体及助剂进行了表征,利用电化学工作站对所制备的催化剂进行了电化学性能测试。表征结果为,所制备的碳球粒径分布的范围是0.4μm~0.9μm,表面含有-OH,-C=O,-COOH含氧官能基。电化学测试表征结果为,添加了花状CeO2的Pt-CeO2/C催化剂的催化性能,稳定性和抗中毒能力比传统的Pt/C更优秀。随着碳球载体粒径的减小,催化剂的催化性能,稳定性及抗中毒能力随之增强。葡萄糖浓度为0.5mol/L,水热反应时间为4h条件下合成的碳球作载体,并加入花状CeO2为助剂合成的催化剂对乙醇的催化氧化具有最佳的活性,稳定性及抗中毒能力。
Preparation and Characterization of Pt-CeO2/C as Catalyst for Direct Ethanol Fuel Cell
英文关键词:direct ethanol fuel cell  hollow carbon spheres  CeO2  electrocatalysis
英文摘要:
      In this paper, size controllable hollow carbon spheres used as catalyst carrier were prepared by hydrothermal synthesis with glucose as the raw material without adding organic template, the self-made flower-like CeO2 with a pore size in the range of 30nm~40nm and a specific surface area of 126m2/g was added as auxiliary catalyst, and the catalyst was prepared by microwave-assisted reduction of chloroplatinic acid with ethylene glycol. The prepared catalyst carrier and auxiliary catalyst were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), infrared spectroscopy (IR), X-ray diffraction (XRD) and specific surface area (BET). The electrochemical performance of the prepared catalyst was tested by electrochemical workstation. The results show that the size distribution of the carbon sphere is between 0.4μm and 0.9μm and the surface contains -OH, -C=O, -COOH oxygen-containing functional groups. The results of electrochemical tests show that compared with the traditional Pt/C catalyst, Pt-CeO2/C catalyst with the addition of flower-like CeO2 has better catalytic activity, stability and anti-CO poisoning capacity. With the decrease of the size of the carbon sphere carrier, the catalytic performance, stability and anti-CO poisoning ability of the catalyst was enhanced. The catalyst was prepared by the carbon spheres as the carrier which were prepared under the condition of glucose concentration of 0.5mol/L and hydrothermal reaction time of 4h and the floral CeO2 as the auxiliary catalyst which has the best activity, stability and anti-CO poisoning capacity for the catalytic oxidation of ethanol.
作者单位E-mail
郭瑞华 上海大学上海市现代冶金与材料制备重点实验室 grh7810@163.com 
张捷宇 上海大学上海市现代冶金与材料制备重点实验室  
周国治 上海大学上海市现代冶金与材料制备重点实验室  
安胜利 内蒙古科技大学材料与冶金学院  
莫逸杰 内蒙古科技大学材料与冶金学院  
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