能源化学(英文版) ›› 2020, Vol. 44 ›› Issue (5): 90-96.DOI: 10.1016/j.jechem.2019.09.018

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MOF-derived Co9S8/MoS2 embedded in tri-doped carbon hybrids for efficient electrocatalytic hydrogen evolution

Tian-Tian Chen, Rui Wang, Lin-Ke Li, Zhong-Jun Li, Shuang-Quan Zang   

  1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
  • 收稿日期:2019-08-20 修回日期:2019-09-12 出版日期:2020-05-15 发布日期:2020-12-18
  • 基金资助:
    This work was supported by the National Science Fund for Distinguished Young Scholars (No. 21825106), National Natural Science Foundation of China (No. 21671175), Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 164100510005), Key Scientific Research Project Plan in Colleges and Universities of Henan Province (No. 16A150045) and Program for Innovative Research Team (in Science and Technology) in Universities of Henan Province (No. 19IRTSTHN022).

MOF-derived Co9S8/MoS2 embedded in tri-doped carbon hybrids for efficient electrocatalytic hydrogen evolution

Tian-Tian Chen, Rui Wang, Lin-Ke Li, Zhong-Jun Li, Shuang-Quan Zang   

  1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
  • Received:2019-08-20 Revised:2019-09-12 Online:2020-05-15 Published:2020-12-18
  • Contact: Zhong-Jun Li, Shuang-Quan Zang
  • Supported by:
    This work was supported by the National Science Fund for Distinguished Young Scholars (No. 21825106), National Natural Science Foundation of China (No. 21671175), Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 164100510005), Key Scientific Research Project Plan in Colleges and Universities of Henan Province (No. 16A150045) and Program for Innovative Research Team (in Science and Technology) in Universities of Henan Province (No. 19IRTSTHN022).

摘要: Metal-organic framework (MOF) derived hybrid materials have been developed as an efficient non-noblemetal electrocatalysts for clean energy conversion systems. In this work, a Co-based MOF containing nitrogen and oxygen heteroatoms (Co-NOMOF) mixed with the thiomolybdate[Mo3S13]2- nanoclusters was used to prepare the N, S, O-doped carbon encapsulating Co9S8 and MoS2 (Co9S8/MoS2@NSOC) nanocomposite by one-step pyrolysis. The Co9S8/MoS2@NSOC nanocomposite exhibited remarkable catalytic performance for hydrogen evolution reaction (HER) with overpotential of 194 and 233 mV in 1 M KOH and 0.5 M H2SO4 solution under 10 mA cm-2, respectively, which was ascribed to the multiheteroatom-doped hierarchical porous carbon matrix and the synergistic effect of intrinsic activity of Co9S8 and MoS2. This work provides new opportunity for developing highly efficient non-precious metal electrochemical catalysts.

关键词: Metal-organic frameworks, Hydrogen evolution reaction, [Mo3S13]2- clusters, Co9S8

Abstract: Metal-organic framework (MOF) derived hybrid materials have been developed as an efficient non-noblemetal electrocatalysts for clean energy conversion systems. In this work, a Co-based MOF containing nitrogen and oxygen heteroatoms (Co-NOMOF) mixed with the thiomolybdate[Mo3S13]2- nanoclusters was used to prepare the N, S, O-doped carbon encapsulating Co9S8 and MoS2 (Co9S8/MoS2@NSOC) nanocomposite by one-step pyrolysis. The Co9S8/MoS2@NSOC nanocomposite exhibited remarkable catalytic performance for hydrogen evolution reaction (HER) with overpotential of 194 and 233 mV in 1 M KOH and 0.5 M H2SO4 solution under 10 mA cm-2, respectively, which was ascribed to the multiheteroatom-doped hierarchical porous carbon matrix and the synergistic effect of intrinsic activity of Co9S8 and MoS2. This work provides new opportunity for developing highly efficient non-precious metal electrochemical catalysts.

Key words: Metal-organic frameworks, Hydrogen evolution reaction, [Mo3S13]2- clusters, Co9S8