Electrocatalytic CO <sub>2</sub> Reduction in Acids: A Groundbreaking Approach to Converting CO <sub>2</sub> into Fuels and Feedstocks
Wenbo Wei, Haifei Liu, Qi‐Long Zhu
Abstract
The electrocatalytic carbon dioxide reduction reaction (CO 2 RR) at industrial-level current densities provides a sustainable approach to converting CO 2 into value-added fuels and feedstocks using renewable electricity. However, the CO 2 RR conducted typically in alkaline and neutral electrolytes encounters some challenges due to the inevitable reaction between CO 2 and OH − ions, which undermines CO 2 utilization and leads to poor operational stability. Acidic media present a viable alternative by reducing (bi)carbonate production, thereby enhancing the carbon efficiency and stability in CO 2 RR. The objective of this paper is to provide a concise account of the recent advancements and challenges in the field of acidic CO 2 RR, with an emphasis on future developments and opportunities.