Rational Designing Microenvironment of Gas‐Diffusion Electrodes via Microgel‐Augmented CO2 Availability for High‐Rate and Selective CO2 Electroreduction to Ethylene DOI Creative Commons
Hesamoddin Rabiee, Mengran Li, Penghui Yan

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(40)

Published: Aug. 29, 2024

Abstract Efficient electrochemical CO 2 reduction reaction (CO RR) requires advanced gas‐diffusion electrodes (GDEs) with tunned microenvironment to overcome low availability in the vicinity of catalyst layer. Herein, for first time, pyridine‐containing microgels‐augmented is presented Cu O‐based GDE high‐rate ethylene, owing presence ‐phil microgels amine moieties. Microgels as three‐dimensional polymer networks act micro‐reservoirs engineer and boost local availability. The superior ethylene production performance modified by 4‐vinyl pyridine microgels, compared diethylaminoethyl methacrylate indicates bifunctional effect pyridine‐based enhance availability, electrocatalytic reduction. While Faradaic efficiency (FE) without was capped at 43% 300 mA cm −2 , showed 56% FE 700 . A similar trend observed zero‐gap design, GDEs 58% −4.0 cell voltage (>350 current density), resulting over 2‐fold improvement production. This study showcases use a higher rate RR‐to‐C 2+ opening an avenue several other more selective efficient electrolysis.

Language: Английский

Rational Designing Microenvironment of Gas‐Diffusion Electrodes via Microgel‐Augmented CO2 Availability for High‐Rate and Selective CO2 Electroreduction to Ethylene DOI Creative Commons
Hesamoddin Rabiee, Mengran Li, Penghui Yan

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(40)

Published: Aug. 29, 2024

Abstract Efficient electrochemical CO 2 reduction reaction (CO RR) requires advanced gas‐diffusion electrodes (GDEs) with tunned microenvironment to overcome low availability in the vicinity of catalyst layer. Herein, for first time, pyridine‐containing microgels‐augmented is presented Cu O‐based GDE high‐rate ethylene, owing presence ‐phil microgels amine moieties. Microgels as three‐dimensional polymer networks act micro‐reservoirs engineer and boost local availability. The superior ethylene production performance modified by 4‐vinyl pyridine microgels, compared diethylaminoethyl methacrylate indicates bifunctional effect pyridine‐based enhance availability, electrocatalytic reduction. While Faradaic efficiency (FE) without was capped at 43% 300 mA cm −2 , showed 56% FE 700 . A similar trend observed zero‐gap design, GDEs 58% −4.0 cell voltage (>350 current density), resulting over 2‐fold improvement production. This study showcases use a higher rate RR‐to‐C 2+ opening an avenue several other more selective efficient electrolysis.

Language: Английский

Citations

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