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硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (2): 728-735.

所属专题: 陶瓷

• 陶瓷 • 上一篇    下一篇

氧化锰基电催化材料的设计合成及其铝空气电池应用

胡文静1, 班锦锦2, 谢顺利3, 王瑞智4, 肖建军4, 雷红红4   

  1. 1.河南工业大学化学化工学院,郑州 450001;
    2.郑州大学材料科学与工程学院,郑州 450001;
    3.中原工学院建筑工程学院,郑州 450007;
    4.佛光发电设备股份有限公司,郑州 450000
  • 收稿日期:2022-09-08 修订日期:2022-11-07 出版日期:2023-02-15 发布日期:2023-03-07
  • 通信作者: 班锦锦,博士,副教授。E-mail:banjin6547@zzu.edu.cn 雷红红,高级经济师。E-mail:13911507222@162.com
  • 作者简介:胡文静(2001—),女。主要从事新能源材料的研究。E-mail:2172918786@qq.com
  • 基金资助:
    河南省高等学校重点科研项目(21A560017)

Design and Synthesis of Manganese Oxide-Based Electrocatalytic Materials and Application in Aluminum Air Battery

HU Wenjing1, BAN Jinjin2, XIE Shunli3, WANG Ruizhi4, XIAO Jianjun4, LEI Honghong4   

  1. 1. School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China;
    2. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
    3. Department of Civil Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;
    4. Foguang Power Generation Equipment Co., Ltd., Zhengzhou 450000, China
  • Received:2022-09-08 Revised:2022-11-07 Online:2023-02-15 Published:2023-03-07

摘要: 电催化剂作为铝空气电池阴极的核心部分,其催化性能的优劣直接影响铝空气电池的产业化进程。本文采用尿素高温处理法将商业的Vulcan-72XC碳材料进行掺氮改性处理制备了N/VC2。在此基础上,进一步负载不同的锰氧化物得到三种Mn3O4@N/VC2、MnO@N/VC2和MnO2@N/VC2复合材料。其中,MnO2@N/VC2具有最优的氧还原反应(ORR)催化性能,起始电位高达0.872 V。作为铝空气电池阴极催化剂,在大电流密度下放电功率密度可达到136 mW·cm-2。本文通过对比分析不同氧化锰基复合材料的电催化性能,研究了碳载体和锰氧化物之间的交互作用。结果表明,多孔结构和丰富缺陷位点的协同作用是提高材料催化活性的主要原因。该工作为锰基氧化物催化剂的研发提供理论依据。

关键词: 氮掺杂碳材料, 锰氧化物, 复合材料, 铝空气电池, 功率密度, 氧还原催化剂

Abstract: As the core part of Al-air batteries cathode, the catalytic performance of electrocatalyst affects the industrialization process of Al-air batteries. In this work, nitrogen-doped carbon material (N/VC2) was prepared through urea high temperature treatment method based on commercial Vulcan-72XC carbon material. Mn3O4@N/VC2, MnO@N/VC2 and MnO2@N/VC2 composites were further obtained by loading different manganese oxides. MnO2@N/VC2 displays the superior oxyen reduction reaction (ORR) performence with the positive onset potential of 0.872 V. In addition, Al-air battery based on MnO2@N/VC2 shows excellent discharge performance in high current density, and the maximum power density can reach 136 mW·cm-2. The interaction between carbon carrier and manganese oxide was studied by comparing the electrocatalytic properties of different composites. The results show that the synergistic action of porous structure and abundant defect sites is the main reason for improving the catalytic activity of the material. This work provides a theoretical basis for the research and development of manganese-based oxide catalysts.

Key words: nitrogen-doped carbon material, manganese oxide, composite, aluminum air battery, power density, oxygen reduction catalyst

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