Interface regulation promoting carbon monoxide gas diffusion electrolysis towards C2+ products. Issue 22 (25th February 2022)

• Record Type: Journal Article
• Authors: Yan, Yingzhang; Yu, Yonghao; Zhang, Yumin; Yao, Tai; Xu, Ping; Song, Bo
• Is Part Of: Chemical communications. Volume 58:Issue 22(2022)
• Page Start: 3645
• Page End: 3648
• Publication Date: 2022-02-25
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d2cc00343k
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Porous Cu-PMMA hybrid architectures were demonstrated to enhance gas diffusion and ion conductivity, thus facilitating the kinetics of CO electrolysis. Abstract : Electrochemical conversion of carbon dioxide and carbon monoxide into value-added multi-carbon products (C2 + ) offers a promising approach for artificial oxycarbide recycling. However, C2 + productivity is still limited by gas accessibility inside the catalyst layer. Here, a Cu-PMMA porous hybrid architecture with rich triple-phase boundaries was demonstrated to enhance both gas diffusion and electron transfer, and then, facilitate the kinetics of CO electrolysis. As a result, a high C2 + faradaic efficiency (FE) of 81.6% at a current density of 50 mA cm −2 and a maximum C2 + partial current density of 140 mA cm −2 were achieved, among the best performances for Cu/hybrid catalysts. This study provides a novel strategy for designing electrochemical CO reduction (ECORR) catalysts and paves the way for further developing gas-involving electrocatalysis.