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Keywords:

  • carbon nanotubes;
  • electrocatalysts;
  • ionic liquids;
  • metal-free;
  • oxygen reduction

Abstract

We report remarkable metal-free electrocatalytic activities of the imidazolium salt-functionalized ionic multi-walled carbon nanotubes (IM-f-MWCNTs) in the oxygen reduction reaction (ORR). The electrocatalytic activity can be attributed to the induced polarization of the π-electrons of CNTs, thus accelerating interfacial electron transfer. The zwitterionic MWCNTs functionalized with poly(vinylimidazolium sulfonate) have a more positive surface charge and exhibit a better electrocatalytic activity than the poly(vinylbutylimidazolium chloride)-functionalized MWCNTs. The IM-f-MWCNTs showed better fuel selectivity than the commercial Pt/C electrocatalyst.

Featured Compounds

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  1. 1 - 2
Compound 1
Molecular Weight:186.682
Molecular Formula:C9H15ClN2
InChIKey:KRCYUCRTMSTHOK-UHFFFAOYSA-M
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Compound 2
Molecular Weight:216.257
Molecular Formula:C8H13N2O3S
InChIKey:NUYSYBDIPXEBHS-UHFFFAOYSA-N
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