Devi et al. (2025): Electrodeposition of Carbon-Trapping Minerals in Seawater for Variable Electrochemical Potentials and Carbon Dioxide Injections

Nishu Devi, Xiaohui Gong, Daiki Shoji, Amy Wagner, Alexandre Guerini, Davide Zampini, Jeffrey Lopez and Alessandro F. Rotta Loria, IN: Advanced Sustainable Systems, https://doi.org/10.1002/adsu.202400943

Seawater offers immense potential for addressing global energy and climate challenges. Electrochemical seawater splitting is a sustainable approach for hydrogen production and carbon dioxide (CO₂) sequestration, producing hydrogen gas at the cathode and oxygen or chlorine gas at the anode. Simultaneously, minerals such as calcium carbonate and magnesium hydroxide precipitate at the cathode, especially when coupled with CO₂ injections for the sake of CO₂ sequestration. These precipitates are often dismissed as energy-intensive byproducts. However, they have untapped potential as resources for construction, manufacturing, and environmental remediation. Here, a comprehensive experimental investigation is presented into the electrochemical precipitation of minerals in seawater under varying operational conditions.

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