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Atomically Dispersed s-Block Magnesium Sites for Electroreduction of CO2 to CO
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-09-22 , DOI: 10.1002/anie.202109329
Qiyou Wang 1 , Kang Liu 1 , Junwei Fu 1 , Chao Cai 1 , Huangjingwei Li 1 , Yan Long 1 , Shanyong Chen 1 , Bao Liu 1 , Hongmei Li 1 , Wenzhang Li 2 , Xiaoqing Qiu 2 , Ning Zhang 3 , Junhua Hu 4 , Hao Pan 5 , Min Liu 1
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Atomically dispersed magnesium atoms embedded in graphitized C3N4 (Mg-C3N4) show weak CO adsorption because of nondirectionally delocalized Mg 3 s orbit. Mg-C3N4 exhibits a high turnover frequency (TOF) of ≈18 000 hour−1 under a CO Faradaic efficiency ≥90 %. Furthermore, the flow cell fabricated with Mg-C3N4 reaches a large current density of −300 mA cm−2 under a CO Faradaic efficiency ≥90 %.
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中文翻译:

用于将 CO2 电还原为 CO 的原子分散 s 区镁位点

由于非定向离域的 Mg 3 s 轨道,嵌入石墨化 C 3 N 4 (Mg-C 3 N 4 ) 中的原子分散的镁原子表现出较弱的 CO 吸附。Mg-C 3 N 4在CO法拉第效率≥90%下表现出≈18000小时-1的高周转频率(TOF) 。此外,用Mg-C 3 N 4制造的流通池在CO法拉第效率≥90%的情况下达到-300 mA cm -2的大电流密度。
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更新日期:2021-11-15
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