Electrochemical reduction of CO₂ into formate/formic acid: A review of cell design and operation

<p dir="ltr">The release of carbon dioxide (CO₂) into the atmosphere is threatening the environment and ecosystems, resulting in major challenges to sustainable development for modern industry. In this context, CO₂ electrochemical reduction (CO₂ ECR) is one of the most promising technologies to mitigate the effects of high CO₂ content in the atmosphere. Electrochemical technology can convert CO₂ into value-added chemicals including methanol, ethanol and formate. In this review, different mechanisms of CO₂ electrochemical reduction into formate/formic acid are reviewed, highlighting the different cell designs . Also, the effect of cell design and operating parameters on the electrochemical reduction process are discussed. The review aims to highlight recent developments in the CO₂electrochemical cell design for formate production and provide guidelines for future advancements. Challenges of large-scale production and research gaps are also provided.</p><h2>Other Information</h2><p dir="ltr">Published in: Separation and Purification Technology<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.seppur.2023.123811" target="_blank">https://dx.doi.org/10.1016/j.seppur.2023.123811</a></p>