Wen Xiaojuan, Gao Dunfeng, Wang Guoxiong
State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
ChemSusChem. 2025 May 19;18(10):e202402438. doi: 10.1002/cssc.202402438. Epub 2025 Feb 13.
Electrochemical CO conversion to high-value chemicals and fuels has been extensively investigated as a promising carbon-neutrality technology. To date, most studies are generally performed with pure or highly concentrated CO feeds, however, the composition of industrial flue gases is very complex, with a low CO concentration and impurities like O, CO, NO, and SO. Direct utilization of industrial flue gases can bypass the capture and purification steps, yet it suffers from multiple challenges. In this Concept article, we discuss scientific challenges and innovation strategies towards direct electrochemical conversion of CO from industrial flue gases. Selected examples on rationally designing catalytic materials and electrode structures for promoting electrochemical reduction of CO in the presence of N and impurity gases are highlighted. We end up the article with perspectives on the research opportunities and future directions in this emerging yet practical field.
电化学将CO转化为高价值化学品和燃料作为一种有前景的碳中和技术已得到广泛研究。迄今为止，大多数研究通常使用纯的或高浓度的CO进料进行，然而，工业烟气的组成非常复杂，CO浓度低且含有O、CO、NO和SO等杂质。直接利用工业烟气可以绕过捕获和净化步骤，但面临多重挑战。在这篇概念文章中，我们讨论了工业烟气中CO直接电化学转化面临的科学挑战和创新策略。重点介绍了在存在N和杂质气体的情况下合理设计催化材料和电极结构以促进CO电化学还原的选定示例。我们在文章结尾展望了这个新兴但实用领域的研究机会和未来方向。
