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Article Abstract
The conversion of CO into carbon-based fuels and chemicals via the electrocatalytic CO reduction reaction (CORR) offers an attractive route to reducing the CO emission for carbon neutrality. Currently, high-purity CO gas has been widely used as the feedstock for most of the CORR studies, while CO sources with a typically low concentration impose the extra cost for CO capture and purification steps. The direct utilization of low-concentration CO for the CORR is a promising approach to substantially address this problem. In this Perspective, we first highlight the prominent advantages of direct electroreduction of low-concentration CO. Then we focus on the summary of several important design strategies for CORR in diluted CO and gas impurities-containing CO atmosphere. Finally, we propose personal outlooks on future challenges and some opportunities for this fascinating research field.
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