Tunable Selectivity and High Efficiency of CO₂ Electroreduction via Borate-Enhanced Molten Salt Electrolysis.

ABSTRACT: Converting CO₂ into value-added chemical fuels and functional materials by CO₂ reduction reaction (CO₂RR) is conducive to achieving a carbon-neutral energy cycle. However, it is still challenging to efficiently navigate CO₂RR toward desirable products. Herein, we report a facile strategy to extend product species in borate-containing molten electrolyte at a positively shifted cathodic potential with a high current density (e.g. 100 mA/cm²), which can selectively electro-transform CO₂ into desired products (either CO or solid carbon nanofibers, respectively reaching a high selectivity of ∼90%). The borates can act as a controller of electrolyte alkalinity to buffer the concentration of sequentially generated O^2- du

SUBMITTER: Hu L 

PROVIDER: S-EPMC7648164 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature