Impact of Side Chains in 1-n-Alkylimidazolium Ionomers on Cu-Catalyzed Electrochemical CO₂ Reduction.

ABSTRACT: This study presents the impact of the side chains in 1-n-alkylimidazolium ionomers with varying side chain lengths (C_nH_2n+1 where n = 1, 4, 10, 16) on Cu-catalyzed electrochemical CO₂ reduction reaction (CO₂RR). Longer side chains suppress the H₂ and CH₄ formation, with the n-hexadecyl ionomer (n = 16) showing the greatest reduction in kinetics by up to 56.5% and 60.0%, respectively. On the other hand, C₂H₄ production demonstrates optimal Faradaic efficiency with the n-decyl ionomer (n = 10), a substantial increase of 59.9% compared to its methyl analog (n = 1). Through a combination of density functional theory calculations and material characterization, it is revealed that the engineering of the side

SUBMITTER: Song YI 

PROVIDER: S-EPMC11653625 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature