Electrochemical system design for CO<sub>2</sub> conversion: A comprehensive review

<p dir="ltr">This paper reviews the electrochemical reduction of CO<sub>2</sub> and the design of CO<sub>2</sub> electrolyzer cells using advanced materials and novel configurations to improve efficiency and reduce costs. It examines various system types based...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: M.S. Sajna (17317051) (author)
مؤلفون آخرون: Sifani Zavahir (1657531) (author), Anton Popelka (2804842) (author), Peter Kasak (1360617) (author), Ali Al-Sharshani (17115604) (author), Udeogu Onwusogh (14152128) (author), Miao Wang (248377) (author), Hyunwoong Park (1521754) (author), Dong Suk Han (1748989) (author)
منشور في: 2023
الموضوعات:
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الملخص:<p dir="ltr">This paper reviews the electrochemical reduction of CO<sub>2</sub> and the design of CO<sub>2</sub> electrolyzer cells using advanced materials and novel configurations to improve efficiency and reduce costs. It examines various system types based on geometry and components, analyzing key performance parameters to offer valuable insights into effective and selective CO<sub>2</sub> conversion. Techno-economic analysis is employed to assess the commercial viability of electrochemical CO<sub>2</sub> reduction (eCO<sub>2</sub>R) products. Additionally, the paper discusses the design of eCO<sub>2</sub>R reactors, addressing challenges, benefits, and developments associated with reactant supply in liquid and gas phases. It also explores knowledge gaps and areas for improvement to facilitate the development of more efficient eCO<sub>2</sub>R systems. To compete with gas-fed electrolyzers, the paper presents various approaches to enhance the performance of liquid-fed electrolyzers, leveraging their operation simplicity, scalability, low costs, high selectivity, and reasonable energy requirements. Furthermore, recent reports summarizing the performance parameters of reliable and effective electrocatalysts under ideal operating conditions, in conjunction with different electrolyzer configurations, are highlighted. This overview provides insights into the current state of the field and suggests future research directions for producing valuable chemicals with high energy efficiency (low overpotential). Ultimately, this review equips readers with fundamental knowledge and understanding necessary to improve and optimize eCO<sub>2</sub>R beyond lab-scale applications, fostering advancements in the promising field.</p><h2>Other Information</h2><p dir="ltr">Published in: Journal of Environmental Chemical Engineering<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.jece.2023.110467" target="_blank">https://dx.doi.org/10.1016/j.jece.2023.110467</a></p>