She Xiaojie, Wang Yifei, Xu Hui, Chi Edman Tsang Shik, Ping Lau Shu
Department of Applied Physics, the, Hong Kong Polytechnic University, Hung Hom, Hong Kong, P. R. China.
Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford, OX1 3QR, UK.
Angew Chem Int Ed Engl. 2022 Dec 5;61(49):e202211396. doi: 10.1002/anie.202211396. Epub 2022 Oct 21.
The global temperature increase must be limited to below 1.5 °C to alleviate the worst effects of climate change. Electrocatalytic CO reduction (ECO R) to generate chemicals and feedstocks is considered one of the most promising technologies to cut CO emission at an industrial level. However, despite decades of studies, advances at the laboratory scale have not yet led to high industrial deployment rates. This Review discusses practical challenges in the industrial chain that hamper the scaling-up deployment of the ECO R technology. Faradaic efficiencies (FEs) of about 100 % and current densities above 200 mA cm have been achieved for the ECO R to CO/HCOOH, and the stability of the electrolysis system has been prolonged to 2000 h. For ECO R to C H , the maximum FE is over 80 %, and the highest current density has reached the A cm level. Thus, it is believed that ECO R may have reached the stage for scale-up. We aim to provide insights that can accelerate the development of the ECO R technology.
全球气温上升必须限制在1.5°C以下，以减轻气候变化的最严重影响。通过电催化CO还原（ECO R）来生成化学品和原料，被认为是在工业层面减少CO排放最具前景的技术之一。然而，尽管经过了数十年的研究，实验室规模的进展尚未带来高工业部署率。本综述讨论了产业链中阻碍ECO R技术扩大规模部署的实际挑战。对于ECO R生成CO/HCOOH，已实现了约100%的法拉第效率（FEs）和高于200 mA cm的电流密度，并且电解系统的稳定性已延长至2000小时。对于ECO R生成C H ，最大FE超过80%，最高电流密度已达到A cm水平。因此，人们认为ECO R可能已达到扩大规模的阶段。我们旨在提供能够加速ECO R技术发展的见解。
