Highly selective CO 2 electrolysis in aqueous media by a water-soluble cobalt dimethyl-bipyridine complex.

Tomiko M SuzukiKengo NagatsukaTakamasa Nonaka Yuichi Yamaguchi Naonari Sakamoto Takeshi Uyama Keita SekizawaAkihiko KudoTakeshi Morikawa

Published in: Chemical communications (Cambridge, England) (2023)

A water-soluble Co complex with dimethyl-bipyridine ligands reduced CO 2 to CO electrochemically with almost 100% selectivity at -0.80 V vs. NHE in an aqueous medium (pH 6.8) without an organic solvent. The reaction overpotential was 270 mV. A possible CO formation mechanism was discussed based on experiments and calculations.

Keyphrases

water soluble
ionic liquid
density functional theory
molecular dynamics
molecular dynamics simulations
solar cells