兰州大学机构库
Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water
2019-05
Source PublicationNATURE CATALYSIS
ISSN2520-1158
Volume2Issue:5Pages:448-456
AbstractThe electrochemical nitrogen reduction reaction (ENRR) can allow the production of ammonia from nitrogen and water under ambient conditions and is regarded as a sustainable alternative to the industrial Haber-Bosch process. However, electrocatalytic systems that selectively and efficiently catalyse nitrogen reduction remain elusive due to the strong competition with the hydrogen evolution reaction. Here, we report a strategy to simultaneously promote ENRR selectivity and activity using bismuth nanocrystals and potassium cations. Bismuth exhibits higher intrinsic ENRR activity than transition metals due to the strong interaction between the Bi 6p band and the N 2p orbitals. Potassium cations stabilize key nitrogen-reduction intermediates and regulate proton transfer to increase the selectivity. A high Faradaic efficiency of 66% and ammonia yield of 200 mmol g(-1)h(-1) (0.052 mmol cm(-2) h(-1)) are obtained in aqueous electrolyte under ambient conditions. This strategy represents a general method to expand the library of catalysts and promoters for the selective electrochemical reduction of stable molecules.
DOI10.1038/s41929-019-0241-7
Indexed BySCIE
Language英语
Funding ProjectBeijing Natural Science Foundation[2162019]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000467975700012
PublisherNATURE PUBLISHING GROUP
Original Document TypeArticle
Citation statistics
Cited Times:329[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/297897
Collection兰州大学
Corresponding AuthorYin, An-Xiang; Si, Rui; Zhang, Ya-Wen; Yan, Chun-Hua
Affiliation1.Beijing Inst Technol, MOE Key Lab Cluster Sci, Beijing Key Lab Photoelect Electrophoton Convers, Sch Chem & Chem Engn, Beijing, Peoples R China
2.Peking Univ, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Che, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn,Beijing Natl Lab Mol Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China
4.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou, Gansu, Peoples R China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Hao, Yu-Chen,Guo, Yu,Chen, Li-Wei,et al. Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water[J]. NATURE CATALYSIS,2019,2(5):448-456.
APA Hao, Yu-Chen.,Guo, Yu.,Chen, Li-Wei.,Shu, Miao.,Wang, Xin-Yu.,...&Yan, Chun-Hua.(2019).Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water.NATURE CATALYSIS,2(5),448-456.
MLA Hao, Yu-Chen,et al."Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water".NATURE CATALYSIS 2.5(2019):448-456.
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