Enhancing CO2 electrolysis to formate on facilely synthesized Bi catalysts at low overpotential

We report the promising performance of a micro-structured Bi catalyst which directly converts CO2 to fuels at room temperature and ambient pressure

Xia Zhang

2017

Scholarcy highlights

  • A Faradaic efficiency of 90% for CO2 reduction to formate was observed at −1.45 V vs SCE
  • The Bi45/GDE electrode was stable over 20 h of continuous electrolysis operation
  • The electrochemical reduction of CO2 to fuels and chemicals powered by renewable electricity has been regarded as a promising pathway, which can mitigate the greenhouse effect and energy crisis
  • We report the promising performance of a micro-structured Bi catalyst which directly converts CO2 to fuels at room temperature and ambient pressure
  • The catalyst proves to be robust without any obvious degradation over 20 h of continuous electrolysis at −1.45 V vs. SCE
  • The notable activity achieved here is ascribed to the special micro-structure of the Bi catalyst, which may afford more active sites, as indicated by comparison to the structure of commercial Bi

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