催化作用
卟啉
乙腈
电化学
四苯基卟啉
化学
组合化学
溶解度
营业额
氧化还原
无机化学
有机化学
电极
物理化学
作者
Kento Kosugi,Mio Kondo,Shigeyuki Masaoka
标识
DOI:10.1002/anie.202110190
摘要
Abstract The development of artificial molecular catalysts for CO 2 reduction is the key to solving energy and environmental problems. Although chemical modifications can generally improve the catalytic activity of this class of compounds, they often require complicated synthetic procedures. Here, we report a simple procedure that dramatically enhances electrochemical CO 2 reduction activity. A one‐step counteranion‐exchange reaction increased the solubility of a commercially available catalyst, iron(III) tetraphenylporphyrin chloride, in a variety of solvents, allowing the investigation of its catalytic performance under various conditions. Surprisingly, the turnover frequency for CO evolution in acetonitrile (MeCN) reached 7 300 000 s −1 , which is the highest among those of current best‐in‐class molecular catalysts. This excellent catalytic activity originates from the unique reaction between the generated Fe I species and CO 2 in MeCN during catalysis. The present study offers a “quick and easy” method for obtaining an efficient catalytic system for electrochemical CO 2 reduction.
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