气候变化领域集成服务门户(CCPortal): Amination strategy to boost the CO2electroreduction current density of M-N/C single-atom catalysts to the industrial application level

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DOI	10.1039/d0ee04052e
	Amination strategy to boost the CO2electroreduction current density of M-N/C single-atom catalysts to the industrial application level
	Chen Z.; Zhang X.; Liu W.; Jiao M.; Mou K.; Zhang X.; Liu L.
发表日期	2021
ISSN	17545692
起始页码	2349
结束页码	2356
卷号	14 期号:4
英文摘要	Although the Faraday efficiency (FE) for CO production of single-atom catalysts immobilized on nitrogen-doped carbon supports (M-N/C) for the CO2 electrocatalytic reduction reaction (CO2RR) is generally over 90%, M-N/C catalysts demonstrate a poor reaction current density, which is much worse than the current density at the industrial level. Herein, we first report a generalized amination strategy to significantly increase the current density for CO production of M-N/C catalysts (M = Ni, Fe, Zn). Among them, the aminated Ni single-atom catalyst achieves a remarkable CO partial current density of 450 mA cm-2 (a total current density over 500 mA cm-2) with a nearly 90% CO FE at a moderate overpotential of 0.89 V, and particularly CO FE can be maintained over 85% in a wide operating potential range from -0.5 V to -1.0 V. DFT calculations and experimental research demonstrate that the superior activity is attributed to enhanced adsorption energies of CO2∗ and COOH∗ intermediates caused by the regulation of the electronic structure of the aminated catalysts. This work provides an ingenious method for significantly increasing the current density at the industrially-relevant level of single-atom catalysts for the CO2RR. This journal is © The Royal Society of Chemistry.
英文关键词	Amination; Amines; Atoms; Carbon dioxide; Catalysts; Doping (additives); Electronic structure; Electrocatalytic reduction; Enhanced adsorptions; Experimental research; Faraday efficiency; Nitrogen-doped carbons; Partial currents; Potential range; Reaction current; Current density; carbon dioxide; catalyst; current; density; electrochemical method; industrial practice; reduction
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190697
作者单位	CAS Key Laboratory of Bio-based Materials Qingdao, Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China; Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China; Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; Dalian National Laboratory for Clean Energy, CAS, Dalian, 116023, China
推荐引用方式 GB/T 7714	Chen Z.,Zhang X.,Liu W.,et al. Amination strategy to boost the CO2electroreduction current density of M-N/C single-atom catalysts to the industrial application level[J],2021,14(4).
APA	Chen Z..,Zhang X..,Liu W..,Jiao M..,Mou K..,...&Liu L..(2021).Amination strategy to boost the CO2electroreduction current density of M-N/C single-atom catalysts to the industrial application level.Energy & Environmental Science,14(4).
MLA	Chen Z.,et al."Amination strategy to boost the CO2electroreduction current density of M-N/C single-atom catalysts to the industrial application level".Energy & Environmental Science 14.4(2021).