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Ni添加对直接乙醇燃料电池Pt基催化剂催化性能的影响
作者:
作者单位:

1.内蒙古科技大学材料与冶金学院;2.上海大学材料科学与工程学院

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通讯作者:

中图分类号:

TM911.4

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)


Effect of Ni Addition on the Catalytic Performance of Pt - based Catalysts for Direct Ethanol Fuel Cells
Author:
Affiliation:

School of Material and Metallurgy,Inner Mongolia University of Science Technology

Fund Project:

National Natural Science Foundation of China (51474133)

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    摘要:

    本文通过水热法制备出孔径分布范围3.1~4.2nm,比表面积为174.72m2/g的CeO2作为助催化剂,以碳纳米管为载体,采用微波辅助乙二醇法制备PtNiCeO2/C催化剂,探究Ni添加对Pt基催化剂电催化性能的影响。利用X射线衍射仪(XRD)、比表面积及孔径分析仪(BET)、扫描电镜(SEM)和电子能谱(EDAX)对所制备的CeO2及催化剂进行微观表征,利用电化学工作站对所制备的催化剂进行电化学性能测试。结果表明,添加CeO2且催化剂中Pt与Ni的比例为5:1时,制备的催化剂电催化性能最优,其电化学活性表面积为90.41m2/g,对乙醇催化氧化的峰电流密度值为837.67A/g,1100s的稳态电流密度值为178.33A/g,说明添加一定量的Ni,可提高催化剂的抗中毒能力和电催化性能。

    Abstract:

    In this paper, CeO2 with a pore size distribution range of 3.1~4.2nm and a specific surface area of 174.72m2/g was prepared as a co-catalyst by hydrothermal method. PtNiCeO2/C catalyst was prepared by microwave assisted glycol method using carbon nanotubes as carrier. Effect of Ni addition on electrocatalytic performance of Pt based catalysts. The prepared CeO2 and the catalyst were characterized by X-ray diffraction (XRD), BET, SEM and EDAX. The prepared catalyst was characterized by electrochemical workstation electrochemical performance test. The results show that the electrocatalytic activity of CeO2 catalyst prepared by adding CeO2 and the ratio of Pt to Ni is 5:1, the electrocatalytic activity is 90.41m2/g and the peak current density is 837.67A/g, 1100s steady-state current density of 178.33A/g, indicating that adding a certain amount of Ni, can improve the catalyst anti-toxic and electrocatalytic performance.

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郭瑞华,钱飞,安胜利,张捷宇,周国治,莫逸杰. Ni添加对直接乙醇燃料电池Pt基催化剂催化性能的影响[J].稀有金属材料与工程,2019,48(8):2683~2688.[Guo Ruihua, Qian Fei, An Shengli, Zhang Jieyu, Zhou Guozhi, Mo Yijie. Effect of Ni Addition on the Catalytic Performance of Pt - based Catalysts for Direct Ethanol Fuel Cells[J]. Rare Metal Materials and Engineering,2019,48(8):2683~2688.]
DOI:10.12442/j. issn.1002-185X.20180192

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  • 收稿日期:2018-03-06
  • 最后修改日期:2018-05-04
  • 录用日期:2018-06-15
  • 在线发布日期: 2019-09-05
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