Dutta Nilutpal, Peter Sebastian C
New Chemistry Unit and School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064, India.
J Am Chem Soc. 2025 Mar 19;147(11):9019-9036. doi: 10.1021/jacs.5c00164. Epub 2025 Mar 4.
The electrochemical CO reduction reaction (eCORR) is a promising approach for converting CO to useful chemicals and, hence, achieving carbon neutrality. Though high selectivity and activity of products have been achieved recently, all are reported in neutral or alkaline electrolytes. Although these electrolyte media give high selectivity and activity, they face the major challenge of low CO utilization because of carbonate formation, which lowers the overall efficiency of the process. Conducting the eCORR in acidic media can help overcome the issue of carbonate formation and hence can increase the CO utilization efficiency. However, there are many challenges associated with acidic eCORR. Two major concerns are the highly competitive hydrogen evolution reaction in acidic media and salt precipitation issues. This Perspective focuses on the fundamentals of acidic eCORR, recent catalyst development strategies, and relevant problems that need to be addressed in the future. In the end, we provide a future outlook that will give an idea about the problems to focus on in the future in the field of acidic eCORR.
电化学CO还原反应（eCORR）是一种将CO转化为有用化学品从而实现碳中和的有前景的方法。尽管最近已实现了产物的高选择性和活性，但所有这些都是在中性或碱性电解质中报道的。虽然这些电解质介质具有高选择性和活性，但由于碳酸盐的形成，它们面临着CO利用率低的主要挑战，这降低了该过程的整体效率。在酸性介质中进行eCORR有助于克服碳酸盐形成的问题，从而提高CO的利用效率。然而，酸性eCORR存在许多挑战。两个主要问题是酸性介质中极具竞争性的析氢反应和盐沉淀问题。本视角聚焦于酸性eCORR的基本原理、近期的催化剂开发策略以及未来需要解决的相关问题。最后，我们给出了一个未来展望，这将让人了解在酸性eCORR领域未来需要关注的问题。
