Unveiling the Direct Air Capture and Transformation to Formate Under Mild Conditions.

ABSTRACT: Addressing the challenges in the inherent direct air capture and conversion (DACC) is of special interest. This study focuses on the development and optimization of hydroxide-based absorbents for CO₂ capture and subsequent hydrogenation to formate. The research built upon previous work with hydroxide-based systems, which successfully captured atmospheric CO₂ but left open questions regarding the effects of solvents and cations on capture efficiency. A systematic experimental and theoretical investigation is conducted to evaluate a series of organic cations (tetrabutyl ammonium and phosphonium) and different solvents (DMSO, H₂O, MeOH) in the CO₂ capture and further hydrogenation to formate. The findings demonstrate a CO₂ capture efficie

SUBMITTER: Sanchez-Velandia JE 

PROVIDER: S-EPMC12584961 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature