Unravelling the carbonate issue through the regulation of mass transport and charge transfer in mild acid.

ABSTRACT: The electrochemical CO₂ reduction reaction (CO₂RR) triggered by renewable electricity provides a promising route to produce chemical feedstocks and fuels with low-carbon footprints. The intrinsic challenge for the current CO₂RR electrolyzer is the carbonate issue arising from the reaction between hydroxide and CO₂. Acid CO₂RR electrolyzers, in principle, can effectively solve the carbonate formation, but it remains inevitable practically. In this work, we thoroughly investigated the electrode processes of the CO₂RR on the benchmark Ag catalyst in mild acid. The root of the carbonate issue arises from the imbalanced supply-consumption rate of protons-the electron transfer vs. mass transport. Regulating the hydrodynamic

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC10882487 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature