Oxygen-Bridged Copper-Iron Atomic Pair as Dual-Metal Active Sites for Boosting Electrocatalytic NO Reduction

Oxygen-Bridged Copper-Iron Atomic Pair as Dual-Metal Active Sites for Boosting Electrocatalytic NO Reduction

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 39 vom: 21. Sept., Seite e2304646
1. Verfasser: Wang, Dongdong (VerfasserIn)
Weitere Verfasser: Zhu, Xiaorong, Tu, Xiaojin, Zhang, Xiaoran, Chen, Chen, Wei, Xiaoxiao, Li, Yafei, Wang, Shuangyin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article NH3 synthesis NO reduction dual-site catalysts electrocatalysis synergistic effect
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520 |a Electrocatalytic reduction of nitric oxide (NO) to ammonia (NH3 ) is a promising approach to NH3 synthesis. However, due to the lack of efficient electrocatalysts, the performance of electrocatalytic NO reduction reaction (NORR) is far from satisfactory. Herein, it is reported that an atomic copper-iron dual-site electrocatalyst bridged by an axial oxygen atom (OFeN6 Cu) is anchored on nitrogen-doped carbon (CuFe DS/NC) for NORR. The CuFe DS/NC can significantly enhance the electrocatalytic NH3 synthesis performance (Faraday efficiency, 90%; yield rate, 112.52 µmol cm-2  h-1 ) at -0.6 V versus RHE, which is dramatically higher than the corresponding Cu single-atom, Fe single-atom and all NORR single-atom catalysts in the literature so far. Moreover, an assembled proof-of-concept Zn-NO battery using CuFe DS/NC as the cathode outputs a power density of 2.30 mW cm-2 and an NH3 yield of 45.52 µg h-1  mgcat -1 . The theoretical calculation result indicates that bimetallic sites can promote electrocatalytic NORR by changing the rate-determining step and accelerating the protonation process. This work provides a flexible strategy for efficient sustainable NH3 synthesis 
650 4 |a Journal Article 
650 4 |a NH3 synthesis 
650 4 |a NO reduction 
650 4 |a dual-site catalysts 
650 4 |a electrocatalysis 
650 4 |a synergistic effect 
700 1 |a Zhu, Xiaorong  |e verfasserin  |4 aut 
700 1 |a Tu, Xiaojin  |e verfasserin  |4 aut 
700 1 |a Zhang, Xiaoran  |e verfasserin  |4 aut 
700 1 |a Chen, Chen  |e verfasserin  |4 aut 
700 1 |a Wei, Xiaoxiao  |e verfasserin  |4 aut 
700 1 |a Li, Yafei  |e verfasserin  |4 aut 
700 1 |a Wang, Shuangyin  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 35(2023), 39 vom: 21. Sept., Seite e2304646  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:35  |g year:2023  |g number:39  |g day:21  |g month:09  |g pages:e2304646 
856 4 0 |u http://dx.doi.org/10.1002/adma.202304646  |3 Volltext 
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