Applied Catalysis B: Environmental
Applied Catalysis B: Environmental
5 years ago

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

Enhancing CO2 electrolysis to formate on facilely synthesized Bi catalysts at low overpotential
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. However, the development of catalyst with high activity, selectivity, and good stability is still the bottleneck to accomplish this goal. In this communication, we report the promising performance of a micro-structured Bi catalyst which directly converts CO2 to fuels at room temperature and ambient pressure. The Bi catalyst is designed by a simple and facile aqueous chemical reduction strategy, which readily scales up. The Bi45 catalyst exhibits a superior catalytic activity for CO2 conversion to formate, achieving a high Faradic efficiency of 90% at applied potential −1.45V vs. SCE. The overpotential for the Bi45/GDE electrode is only 600mV, a new record to all reported Bi catalysts in the literature. Particularly, the catalyst proves to be robust without any obvious degradation over 20h of continuous electrolysis at −1.45V 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.

Publisher URL: www.sciencedirect.com/science

DOI: S0926337317305751

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.