物理化学学报 >> 2017, Vol. 33 >> Issue (7): 1366-1378.doi: 10.3866/PKU.WHXB201704173

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纳米多孔金属电催化剂在氧还原反应中的应用

翟萧1,3,丁轶2,3,*()   

  1. 1 上海理工大学材料科学与工程学院,上海200093
    2 天津理工大学新能源材料与低碳技术研究院,材料科学与工程学院,天津300384
    3 天津市先进多孔功能材料重点实验室,天津300384
  • 收稿日期:2017-02-20 发布日期:2017-05-31
  • 通讯作者: 丁轶 E-mail:yding@tjut.edu.cn
  • 作者简介:翟萧,2013年本科毕业于上海理工大学材料科学与工程学院,2015年至今为上海理工大学材料科学与工程学院硕士研究生,并在天津市先进多孔功能材料重点实验室联合培养。主要研究方向为纳米多孔金属电催化剂的制备及应用|丁轶,天津理工大学新能源材料与低碳技术研究院教授。主要从事纳米多孔金属材料的研发及在能源、资源、环境等领域中的应用基础研究。发表学术论文100余篇,被引用7300余次,个人H指数45,授权国内外专利30余项
  • 基金资助:
    国家自然科学基金(51671145)

Nanoporous Metal Electrocatalysts for Oxygen Reduction Reactions

Xiao ZHAI1,3,Yi DING2,3,*()   

  1. 1 School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, P. R. China
    2 Institute for New Energy Materials & Low-Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
    3 Tianjin Key Laboratory of Advanced Functional Porous Materials, Tianjin 300384, P. R. China
  • Received:2017-02-20 Published:2017-05-31
  • Contact: Yi DING E-mail:yding@tjut.edu.cn
  • Supported by:
    The project was supported by the National Natural Science Foundation of China(51671145)

摘要:

燃料电池是将化学能直接转化为电能的能量转换装置,具有绿色、高效、便携等特点。对于大多数使用氧气或者空气为氧化剂的燃料电池而言,其阴极氧还原反应动力学缓慢、稳定性差是阻碍该技术走向商业化的主要因素,因此开发高催化活性和良好稳定性的低成本氧还原催化剂非常重要。基于脱合金法制得的纳米多孔金属是一类新型的宏观尺度纳米结构材料,其独特的开放型孔道结构、优良的导电性和结构的可调控性使其在电催化相关领域具有广泛的应用。本文侧重于讨论纳米多孔金属作为氧还原催化剂时所展示的一系列结构特性,及其在发展新一代高性能一体化燃料电池催化剂中所展示的机会。

关键词: 纳米多孔金属, 脱合金, 燃料电池, 氧还原, 低铂催化剂

Abstract:

Fuel cells allow the direct conversion of the chemical energy in chemical fuels to electricity, with particular advantages of being highly effective, environment-friendly, and portable. For those fuel cells using oxygen or air as the oxidant, the oxygen reduction reaction (ORR) occurring on the cathode remains the major obstacle for the commercialization of fuel cell technologies because of its slow kinetics, which in turn results in relatively low catalytic efficiency and high price due to excessive use of precious metals like Pt. In recent years, dealloyed nanoporous metals have garnered widespread attention in the field of electrocatalysis due to their unique structural properties, such as three-dimensionally interconnected pore/ligament structure, excellent conductivity, and structural flexibility. This review summarizes the recent advances in nanoporous metal catalysts for ORR, with an emphasis on their unique structural properties for the development of new-generation high-performance fuel cell catalysts.

Key words: Nanoporous metal, Dealloying, Fuel cell, Oxygen reduction reaction, Low Pt catalyst

MSC2000: 

  • O643