Multifunctional Conductive Polymer Modification for Efficient CO2 Electroreduction in Acidic Electrolyte DOI Open Access

Lina Su,

Qingfeng Hua,

Guang Feng

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Electrode‐electrolyte interfacial modification by hydrophobic molecules represents a promising strategy for suppressing competing proton reduction in acidic electrocatalytic carbon dioxide reactions (CO 2 RR), meanwhile sacrificing extra overpotential due to increased ohmic resistance. Herein, multifunctional conductive polymer, polyaniline modified p‐aminobenzenesulfonic acid (ABSA‐polyaniline), is constructed between Cu catalyst layer and electrolyte simultaneously create an ideal microenvironment CO RR enhance the charge transfer ion transport processes at electrochemical reaction interface. This polymer balances local hydrophobicity, promotes adsorption activation, regulates mass of K + , H OH − ions, thus significantly enhancing kinetics medium, yielding high Faraday efficiency (FE = 81%) multicarbon products 600 mA cm −2 . More importantly, compared with commonly used molecules, nature ABSA‐PANI helps reduce resistance electrode, leading notably lowered cathode industrial‐grade current density improve energy over wide potential window. work sheds light on development highly efficient systems, especially those low alkali cation concentrations concentrations.

Language: Английский

Multifunctional Conductive Polymer Modification for Efficient CO2 Electroreduction in Acidic Electrolyte DOI Open Access

Lina Su,

Qingfeng Hua,

Guang Feng

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Abstract Electrode‐electrolyte interfacial modification by hydrophobic molecules represents a promising strategy for suppressing competing proton reduction in acidic electrocatalytic carbon dioxide reactions (CO 2 RR), meanwhile sacrificing extra overpotential due to increased ohmic resistance. Herein, multifunctional conductive polymer, polyaniline modified p‐aminobenzenesulfonic acid (ABSA‐polyaniline), is constructed between Cu catalyst layer and electrolyte simultaneously create an ideal microenvironment CO RR enhance the charge transfer ion transport processes at electrochemical reaction interface. This polymer balances local hydrophobicity, promotes adsorption activation, regulates mass of K + , H OH − ions, thus significantly enhancing kinetics medium, yielding high Faraday efficiency (FE = 81%) multicarbon products 600 mA cm −2 . More importantly, compared with commonly used molecules, nature ABSA‐PANI helps reduce resistance electrode, leading notably lowered cathode industrial‐grade current density improve energy over wide potential window. work sheds light on development highly efficient systems, especially those low alkali cation concentrations concentrations.

Language: Английский

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