Confined Fe-Cu Clusters as Sub-Nanometer Reactors for Efficiently Regulating the Electrochemical Nitrogen Reduction Reaction

© 2020 The Authors. Published by Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 32(2020), 40 vom: 14. Okt., Seite e2004382
1. Verfasser: Wang, Xiaowei (VerfasserIn)
Weitere Verfasser: Qiu, Siyao, Feng, Jianmin, Tong, Yueyu, Zhou, Fengling, Li, Qinye, Song, Li, Chen, Shuangming, Wu, Kuang-Hsu, Su, Panpan, Ye, Sheng, Hou, Feng, Dou, Shi Xue, Liu, Hua Kun, Max Lu, Gao Qing, Sun, Chenghua, Liu, Jian, Liang, Ji
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article atomic clusters electrochemical nitrogen fixation graphitic carbon nitride sub-nanometer reactors synergistic effect
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520 |a Electrochemical nitrogen reduction reaction (NRR) over nonprecious-metal and single-atom catalysts has received increasing attention as a sustainable strategy to synthesize ammonia. However, the atomic-scale regulation of such active sites for NRR catalysis remains challenging because of the large distance between them, which significantly weakens their cooperation. Herein, the utilization of regular surface cavities with unique microenvironment on graphitic carbon nitride as "subnano reactors" to precisely confine multiple Fe and Cu atoms for NRR electrocatalysis is reported. The synergy of Fe and Cu atoms in such confined subnano space provides significantly enhanced NRR performance, with nearly doubles ammonia yield and 54%-increased Faradic efficiency up to 34%, comparing with the single-metal counterparts. First principle simulation reveals this synergistic effect originates from the unique Fe-Cu coordination, which effectively modifies the N2 absorption, improves electron transfer, and offers extra redox couples for NRR. This work thus provides new strategies of manipulating catalysts active centers at the sub-nanometer scale 
650 4 |a Journal Article 
650 4 |a atomic clusters 
650 4 |a electrochemical nitrogen fixation 
650 4 |a graphitic carbon nitride 
650 4 |a sub-nanometer reactors 
650 4 |a synergistic effect 
700 1 |a Qiu, Siyao  |e verfasserin  |4 aut 
700 1 |a Feng, Jianmin  |e verfasserin  |4 aut 
700 1 |a Tong, Yueyu  |e verfasserin  |4 aut 
700 1 |a Zhou, Fengling  |e verfasserin  |4 aut 
700 1 |a Li, Qinye  |e verfasserin  |4 aut 
700 1 |a Song, Li  |e verfasserin  |4 aut 
700 1 |a Chen, Shuangming  |e verfasserin  |4 aut 
700 1 |a Wu, Kuang-Hsu  |e verfasserin  |4 aut 
700 1 |a Su, Panpan  |e verfasserin  |4 aut 
700 1 |a Ye, Sheng  |e verfasserin  |4 aut 
700 1 |a Hou, Feng  |e verfasserin  |4 aut 
700 1 |a Dou, Shi Xue  |e verfasserin  |4 aut 
700 1 |a Liu, Hua Kun  |e verfasserin  |4 aut 
700 1 |a Max Lu, Gao Qing  |e verfasserin  |4 aut 
700 1 |a Sun, Chenghua  |e verfasserin  |4 aut 
700 1 |a Liu, Jian  |e verfasserin  |4 aut 
700 1 |a Liang, Ji  |e verfasserin  |4 aut 
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773 1 8 |g volume:32  |g year:2020  |g number:40  |g day:14  |g month:10  |g pages:e2004382 
856 4 0 |u http://dx.doi.org/10.1002/adma.202004382  |3 Volltext 
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