Carbon dioxide electroreduction to C₂ products over copper-cuprous oxide derived from electrosynthesized copper complex.

ABSTRACT: Efficient electroreduction of carbon dioxide to multicarbon products in aqueous solution is of great importance and challenging. Unfortunately, the low efficiency of the production of C₂ products limits implementation at scale. Here, we report reduction of carbon dioxide to C₂ products (acetic acid and ethanol) over a 3D dendritic copper-cuprous oxide composite fabricated by in situ reduction of an electrodeposited copper complex. In potassium chloride aqueous electrolyte, the applied potential was as low as -0.4 V vs reversible hydrogen electrode, the overpotential is only 0.53 V (for acetic acid) and 0.48 V (for ethanol) with high C₂ Faradaic efficiency of 80% and a current density of 11.5 mA cm^-2. The outstanding performance of the electrode f

SUBMITTER: Zhu Q 

PROVIDER: S-EPMC6710288 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature