Dinitrogen (N2) fixation to ammonia (NH3) is typically challenging under mild conditions. Now, lithium hydride (LiH) is shown to mediate photodriven N2 fixation under ambient conditions. Under ultraviolet illumination, LiH is photolysed to release H2, leaving electrons residing in surface hydrogen vacancies, which facilitate N2 activation and photocatalytic NH3 synthesis.
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References
Lewis, N. S. Research opportunities to advance solar energy utilization. Science 351, aad1920 (2016). A review article that presents the major developments and research opportunities as well as the remaining challenges for solar energy utilization.
Medford, A. J. & Hatzell, M. C. Photon-driven nitrogen fixation: current progress, thermodynamic considerations, and future outlook. ACS Catal 7, 2624–2643 (2017). A review article that presents the current state of and outlook for the field of photodriven N2 fixation.
Gao, W. et al. Production of ammonia via a chemical looping process based on metal imides as nitrogen carriers. Nat. Energy 3, 1067–1075 (2018). This paper reports that alkali and alkaline earth metal hydrides and imides can mediate NH3 production through a chemical looping route.
Lewis, W. B. & Pretzel, F. Properties of lithium hydride—III. Paramagnetic resonance of color centers. J. Phys. Chem. Solids 19, 139–146 (1961). This paper reports the formation of F-centres in a LiH single crystal upon exposure to ionizing radiation.
Chen, R. et al. Spatiotemporal imaging of charge transfer in photocatalyst particles. Nature 610, 296–301 (2022). This paper reports that spatiotemporally resolved surface photovoltage measurements can be used to map holistic charge-transfer processes.
Guan, Y. et al. Transition-metal-free barium hydride mediates dinitrogen fixation and ammonia synthesis. Angew. Chem. Int. Ed. 61, e202205805 (2022). This research paper presents the mechanism of thermal N2 fixation by barium hydride.
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This is a summary of: Guan, Y. et al. Light-driven ammonia synthesis under mild conditions using lithium hydride. Nat. Chem. https://doi.org/10.1038/s41557-023-01395-8 (2024).
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Photodriven nitrogen fixation by lithium hydride. Nat. Chem. 16, 310–311 (2024). https://doi.org/10.1038/s41557-024-01444-w
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DOI: https://doi.org/10.1038/s41557-024-01444-w
