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https://hdl.handle.net/2440/129627
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Type: | Journal article |
Title: | Ammonia synthesis under Ambient conditions: selective electroreduction of dinitrogen to ammonia on black phosphorus nanosheets |
Author: | Zhang, L. Ding, L.-X. Chen, G.-F. Yang, X. Wang, H. |
Citation: | Angewandte Chemie International Edition, 2019; 58(9):2612-2616 |
Publisher: | Wiley |
Issue Date: | 2019 |
ISSN: | 1433-7851 1521-3773 |
Statement of Responsibility: | Lili Zhang, Liang‐Xin Ding, Gao‐Feng Chen, Xianfeng Yang, Haihui Wang |
Abstract: | Constructing efficient catalysts for the N2 reduction reaction (NRR) is a major challenge for artificial nitrogen fixation under ambient conditions. Herein, inspired by the principle of "like dissolves like", it is demonstrated that a member of the nitrogen family, well-exfoliated few-layer black phosphorus nanosheets (FL-BP NSs), can be used as an efficient nonmetallic catalyst for electrochemical nitrogen reduction. The catalyst can achieve a high ammonia yield of 31.37 μg h-1 mg-1 cat. under ambient conditions. Density functional theory calculations reveal that the active orbital and electrons of zigzag and diff-zigzag type edges of FL-BP NSs enable selective electrocatalysis of N2 to NH3 via an alternating hydrogenation pathway. This work proves the feasibility of using a nonmetallic simple substance as a nitrogen-fixing catalyst and thus opening a new avenue towards the development of more efficient metal-free catalysts. |
Keywords: | ammonia synthesis black phosphorus electrocatalysis metal-free catalysis nitrogen reduction reaction |
Rights: | © 2019 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim |
DOI: | 10.1002/anie.201813174 |
Published version: | http://dx.doi.org/10.1002/anie.201813174 |
Appears in Collections: | Aurora harvest 8 Chemistry publications |
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