Low-frequency electrochemical pulsing to manage flooding and salt precipitation in zero-gap CO ₂ -to-ethylene electrolyzers

Michell Marufu; Maxwell Goldman; R. Dominic Ross; Jongmin Lee; Julie Reed; Michael Troksa; Eric Krall; Auston L. Clemens; Aditya Prajapati; Andrew A. Wong; Pavel Trtik; Po-Ya Abel Chuang; Eric B. Duoss; Sarah E. Baker; Christopher Hahn

doi:10.1039/d6ey00012f

January 1, 2026EES CatalysisOpen Access

Low-frequency electrochemical pulsing to manage flooding and salt precipitation in zero-gap CO ₂ -to-ethylene electrolyzers

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Key Points

This research aims to explore how low-frequency current pulsing can prevent flooding and salt buildup in CO2 electrolyzers.
Used operando neutron radiography to observe changes in electrolyzer function.
Identified liquid product removal in the gas diffusion layer through pulsing effects.
Analyzed the dissolution of precipitates caused by low-frequency pulsing.
Low-frequency current pulsing effectively mitigated flooding issues.
Enhanced removal of liquid products from the gas diffusion layer.
Increased dissolution rates of salt precipitates in the electrolyzer.

Implication

Operando neutron radiography identifies how low-frequency pulsing mitigates flooding in electrolyzers, indicating its potential benefits.

Abstract

Using operando neutron radiography on CO 2 electrolyzers we identify that low-frequency current pulsing allows for mitigation of precipitation and flooding by removing liquid products in the gas diffusion layer and dissolution of precipitates.

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Cite This Study

Marufu et al. (2026) studied this question.

synapsesocial.com/papers/698827670fc35cd7a88461a3 https://doi.org/10.1039/d6ey00012f

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Low-frequency electrochemical pulsing to manage flooding and salt precipitation in zero-gap CO ₂ -to-ethylene electrolyzers

Key Points

Implication

Abstract

Discussion

Cite This Study

Low-frequency electrochemical pulsing to manage flooding and salt precipitation in zero-gap CO ₂ -to-ethylene electrolyzers

Key Points

Implication

Abstract

Discussion

Cite This Study

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