Publication

(Bi)carbonate Precipitation and Gas Diffusion Electrode Stability Coexist during Pulsed Electrochemical CO<sub>2</sub> Reduction

Corsin Battaglia
2025

Abstract

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.

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(Bi)carbonate Precipitation and Gas Diffusion Electrode Stability Coexist during Pulsed Electrochemical CO<sub>2</sub> Reduction

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