能源化学(英文版) ›› 2019, Vol. 38 ›› Issue (11): 68-77.DOI: 10.1016/j.jechem.2019.01.002

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Facile synthesis of Mo2C nanoparticles on N-doped carbon nanotubes with enhanced electrocatalytic activity for hydrogen evolution and oxygen reduction reactions

Yue-Jun Songa, Jin-Tao Rena, Gege Yuana, Yali Yaob, Xinying Liub, Zhong-Yong Yuana,b   

  1. a Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China;
    b Material and Process Synthesis, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
  • 收稿日期:2018-11-20 修回日期:2018-12-31 出版日期:2019-11-15 发布日期:2020-12-18
  • 通讯作者: Zhong-Yong Yuan, zyyuan@nankai.edu.cn
  • 基金资助:
    This work was supported by the Human Resources Development (No. 20184030202070) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy.

Facile synthesis of Mo2C nanoparticles on N-doped carbon nanotubes with enhanced electrocatalytic activity for hydrogen evolution and oxygen reduction reactions

Yue-Jun Songa, Jin-Tao Rena, Gege Yuana, Yali Yaob, Xinying Liub, Zhong-Yong Yuana,b   

  1. a Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), National Institute for Advanced Materials, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China;
    b Material and Process Synthesis, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
  • Received:2018-11-20 Revised:2018-12-31 Online:2019-11-15 Published:2020-12-18
  • Contact: Zhong-Yong Yuan, zyyuan@nankai.edu.cn
  • Supported by:
    This work was supported by the Human Resources Development (No. 20184030202070) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy.

摘要: Developing low-cost and highly-efficient electrocatalysts for renewable energy conversion technologies has attracted even-increasing attention. Molybdenum carbide materials have recently emerged as a type of promising catalysts for electrocatalytic reactions due to the earth-abundance and Pt-resembled electrical properties. In this work, taking the advantage of the interaction between the basic groups of the Mo(VI)-melamine polymer and the acidic groups on the surface of the oxidized carbon nanotubes (CNTs), N-doped CNTs supported Mo2C nanoparticles (Mo2C/NCNT) are prepared, which exhibit outstanding electrocatalytic activity and durability for both the hydrogen evolution and oxygen reduction reactions. The impressive performance of Mo2C/NCNT can be attributed to the small size of Mo2C particles, the large exposure ratio of surface sites and the presence of N-doped CNTs. This work enlarges the multi-field applications of molybdenum carbide-base materials as promising non-precious metal electrocatalysts, which is of great significance for sustainable energy-related technologies.

关键词: N-doping, Carbon nanotubes, Molybdenum carbides, Hydrogen evolution reaction, Oxygen reduction reaction, Electrocatalysis

Abstract: Developing low-cost and highly-efficient electrocatalysts for renewable energy conversion technologies has attracted even-increasing attention. Molybdenum carbide materials have recently emerged as a type of promising catalysts for electrocatalytic reactions due to the earth-abundance and Pt-resembled electrical properties. In this work, taking the advantage of the interaction between the basic groups of the Mo(VI)-melamine polymer and the acidic groups on the surface of the oxidized carbon nanotubes (CNTs), N-doped CNTs supported Mo2C nanoparticles (Mo2C/NCNT) are prepared, which exhibit outstanding electrocatalytic activity and durability for both the hydrogen evolution and oxygen reduction reactions. The impressive performance of Mo2C/NCNT can be attributed to the small size of Mo2C particles, the large exposure ratio of surface sites and the presence of N-doped CNTs. This work enlarges the multi-field applications of molybdenum carbide-base materials as promising non-precious metal electrocatalysts, which is of great significance for sustainable energy-related technologies.

Key words: N-doping, Carbon nanotubes, Molybdenum carbides, Hydrogen evolution reaction, Oxygen reduction reaction, Electrocatalysis