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Keywords:

  • boron;
  • carbon nanotubes;
  • electrocatalysts;
  • fuel cells;
  • oxygen reduction reaction
Thumbnail image of graphical abstract

A metal-free electrocatalyst has been developed by doping carbon nanotubes with electron-deficient boron. The good performance in the oxygen reduction reaction originates from the enhanced O2 chemisorption and effective utilization of π electrons in the conjugated carbon from the boron doping, as revealed by DFT calculations.