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Atomically Dispersed Transition Metals on Carbon Nanotubes with Ultrahigh Loading for Selective Electrochemical Carbon Dioxide Reduction

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  • Release time:2022-02-21

  • DOI number:10.1002/adma.201706287

  • Journal:Adv. Mater.

  • Key Words:高载量单原子

  • Abstract:Single-atom catalysts (SACs) are the smallest entities for catalytic reactions with projected high atomic efficiency, superior activity, and selectivity; however, practical applications of SACs suffer from a very low metal loading of 1–2 wt%. Here, a class of SACs based on atomically dispersed transition metals on nitrogen-doped carbon nanotubes (MSA-N-CNTs, where M = Ni, Co, NiCo, CoFe, and NiPt) is synthesized with an extraordinarily high metal loading, e.g., 20 wt% in the case of NiSA-N-CNTs, using a new multistep pyrolysis process. Among these materials, NiSA-N-CNTs show an excellent selectivity and activity for the electrochemical reduction of CO2 to CO, achieving a turnover frequency (TOF) of 11.7 s−1 at −0.55 V (vs reversible hydrogen electrode (RHE)), two orders of magnitude higher than Ni nanoparticles supported on CNTs.

  • Indexed by:Journal paper

  • Volume:30

  • Issue:13

  • Page Number:1706287

  • Translation or Not:no

  • Date of Publication:2018-01-28


  • Zip Code:410083

  • Postal Address:理学楼417

  • Mobile:15874899443

  • Email:yi.cheng@csu.edu.cn

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