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Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level
Chen, Zhipeng1; Zhang, Xinxin1; Liu, Wei2,4; Jiao, Mingyang1; Mou, Kaiwen1; Zhang, Xiangping3,4; Liu, Licheng1,4
2021-04-01
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
Volume14Issue:4Pages:2349-2356
Abstract

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.

DOI10.1039/d0ee04052e
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
WOS SubjectChemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS IDWOS:000642435400023
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48461
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Licheng
Affiliation1.Chinese Acad Sci, CAS Key Lab Biobased Mat, Qingdao Inst Bioenergy & Biaproc Technol, Qingdao 266101, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhipeng,Zhang, Xinxin,Liu, Wei,et al. Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level[J]. ENERGY & ENVIRONMENTAL SCIENCE,2021,14(4):2349-2356.
APA Chen, Zhipeng.,Zhang, Xinxin.,Liu, Wei.,Jiao, Mingyang.,Mou, Kaiwen.,...&Liu, Licheng.(2021).Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level.ENERGY & ENVIRONMENTAL SCIENCE,14(4),2349-2356.
MLA Chen, Zhipeng,et al."Amination strategy to boost the CO2 electroreduction current density of M-N/C single-atom catalysts to the industrial application level".ENERGY & ENVIRONMENTAL SCIENCE 14.4(2021):2349-2356.
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