(Bi)carbonate Precipitation and Gas Diffusion Electrode Stability Coexist during Pulsed Electrochemical CO2 Reduction

被引：0

作者：

Bernasconi, Francesco ^{[1
,2
]}

Mirolo, Marta ^{[3
]}

Plainpan, Nukorn ^{[1
]}

Wang, Qing ^{[1
]}

Zeng, Peng ^{[4
]}

Drnec, Jakub ^{[3
]}

Senocrate, Alessandro ^{[1
]}

Battaglia, Corsin ^{[1
,2
,5
,6
]}

机构：

[1] Empa, Swiss Fed Labs Mat Sci & Technol, CH-8600 Dubendorf, Switzerland

[2] Swiss Fed Inst Technol, Dept Mat, CH-8093 Zurich, Switzerland

[3] European Synchrotron Radiat Facil, Expt Div, F-38000 Grenoble, France

[4] Swiss Fed Inst Technol, Sci Ctr Opt & Electron Microscopy ScopeM, CH-8093 Zurich, Switzerland

[5] Swiss Fed Inst Technol, Dept Informat Technol & Elect Engn, CH-8093 Zurich, Switzerland

[6] Ecole Polytech Fed Lausanne, Inst Mat, Sch Engn, CH-1015 Lausanne, Switzerland

来源：

ACS ENERGY LETTERS | 2025年 / 10卷 / 02期

基金：

瑞士国家科学基金会;

关键词：

D O I：

10.1021/acsenergylett.4c03042

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pulsed electrolysis is an effective strategy to stabilize the high selectivity of Cu gas diffusion electrodes toward C >= 2 products, the decrease of which over time under continuous operation is often ascribed to (bi)carbonate precipitation. Here, we demonstrate via operando wide-angle X-ray scattering that (bi)carbonate crystals precipitate even during pulsed electrolysis but without causing losses in C >= 2 product selectivity.

引用

页码：635 / 638

页数：4

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