Trade-Off between Redox Potential and the Strength of Electrochemical CO₂ Capture in Quinones.

ABSTRACT: Electrochemical carbon dioxide capture recently emerged as a promising alternative approach to conventional energy-intensive carbon-capture methods. A common electrochemical capture approach is to employ redox-active molecules such as quinones. Upon electrochemical reduction, quinones become activated for the capture of CO₂ through a chemical reaction. A key disadvantage of this method is the possibility of side-reactions with oxygen, which is present in almost all gas mixtures of interest for carbon capture. This issue can potentially be mitigated by fine-tuning redox potentials through the introduction of electron-withdrawing groups on the quinone ring. In this article, we investigate the thermodynamics of the electron transfer and chemical steps of CO₂ capture in d

SUBMITTER: Bui AT 

PROVIDER: S-EPMC9421892 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature