Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water
文献类型：期刊论文
| 作者 | Hao, YC; Guo, Y; Chen, LW; Shu, M; Wang, XY; Bu, TA; Gao, WY; Zhang, N; Su, X; Feng, X |
| 刊名 | NATURE CATALYSIS
 |
| 出版日期 | 2019 |
| 卷号 | 2期号:5页码:448—456 |
| 关键词 | AMBIENT-TEMPERATURE PLANE-WAVE ELECTROCHEMICAL SYNTHESIS ATMOSPHERIC-PRESSURE REDUCTION ADSORPTION ELECTROSYNTHESIS CATALYSTS DESIGN COHP |
| ISSN号 | 2520-1158 |
| DOI | 10.1038/s41929-019-0241-7 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The 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. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31778]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.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 |
| 推荐引用方式 GB/T 7714 | Hao, YC,Guo, Y,Chen, LW,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, YC.,Guo, Y.,Chen, LW.,Shu, M.,Wang, XY.,...&Yan, CH.(2019).Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water.NATURE CATALYSIS,2(5),448—456. |
| MLA | Hao, YC,et al."Promoting nitrogen electroreduction to ammonia with bismuth nanocrystals and potassium cations in water".NATURE CATALYSIS 2.5(2019):448—456. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。