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

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.