References
Fowler, D. et al. The global nitrogen cycle in the twenty-first century. Phil. Trans. R. Soc. B 368, 20130164 (2013).
MacFarlane, D. R. et al. Liquefied sunshine: transforming renewables into fertilizers and energy carriers with electromaterials. Adv. Mater. 32, 1904804 (2020).
MacFarlane, D. R. et al. A roadmap to the ammonia economy. Joule 4, 1186–1205 (2020).
Tsuneto, A., Kudo, A. & Sakata, T. Efficient electrochemical reduction of N2 to NH3 catalyzed by lithium. Chem. Lett. 22, 851–854 (1993).
Tsuneto, A., Kudo, A. & Sakata, T. Lithium-mediated electrochemical reduction of high pressure N2 to NH3. J. Electroanal. Chem. 367, 183–188 (1994).
Andersen, S. Z. et al. A rigorous electrochemical ammonia synthesis protocol with quantitative isotope measurements. Nature 570, 504–508 (2019).
Lazouski, N., Chung, M., Williams, K., Gala, M. L. & Manthiram, K. Non-aqueous gas diffusion electrodes for rapid ammonia synthesis from nitrogen and water-splitting-derived hydrogen. Nat. Catal. 3, 463–469 (2020).
Andersen, S. Z. et al. Increasing stability, efficiency, and fundamental understanding of lithium-mediated electrochemical nitrogen reduction. Energy Environ. Sci. 13, 4291–4300 (2020).
Cherepanov, P. V., Krebsz, M., Hodgetts, R. Y., Simonov, A. N. & MacFarlane, D. R. Understanding the factors determining the faradaic efficiency and rate of the lithium redox-mediated N2 reduction to ammonia. J. Phys. Chem. C 125, 11402–11410 (2021).
Suryanto, B. H. et al. Nitrogen reduction to ammonia at high efficiency and rates based on a phosphonium proton shuttle. Science 372, 1187–1191 (2021).
Li, K. et al. Increasing current density of Li-mediated ammonia synthesis with high surface area copper electrodes. ACS Energy Lett. 7, 36–41 (2022).
Li, K. et al. Enhancement of lithium-mediated ammonia synthesis by addition of oxygen. Science 374, 1593–1597 (2021).
Du, H.-L. et al. Is molybdenum disulfide modified with molybdenum metal catalytically active for the nitrogen reduction reaction? J. Electrochem. Soc. 167, 146507 (2020).
Choi, J. et al. Identification and elimination of false positives in electrochemical nitrogen reduction studies. Nat. Commun. 11, 5546 (2020).
Choi, J. et al. Reassessment of the catalytic activity of bismuth for aqueous nitrogen electroreduction. Nat. Catal. 5, 382–384 (2022).
Lazouski, N., Schiffer, Z. J., Williams, K. & Manthiram, K. Understanding continuous lithium-mediated electrochemical nitrogen reduction. Joule 3, 1127–1139 (2019).
Gao, L.-F. et al. Domino effect: gold electrocatalyzing lithium reduction to accelerate nitrogen fixation. Angew. Chem. Int. Ed. 60, 5257–5261 (2021).
Sonoki, H., Matsui, M. & Imanishi, N. Effect of anion species in early stage of SEI formation process. J. Electrochem. Soc. 166, A3593–A3598 (2019).
Shadike, Z. et al. Identification of LiH and nanocrystalline LiF in the solid–electrolyte interphase of lithium metal anodes. Nat. Nanotechnol. 16, 549–554 (2021).
Wang, L., Uosaki, K. & Noguchi, H. Effect of electrolyte concentration on the solvation structure of gold/LiTFSI–DMSO solution interface. J. Phys. Chem. C 124, 12381–12389 (2020).
Zhang, W., Zhuang, H. L., Fan, L., Gao, L. & Lu, Y. A “cation-anion regulation” synergistic anode host for dendrite-free lithium metal batteries. Sci. Adv. 4, eaar4410 (2018).
Tong, J. et al. Insights into the solvation and dynamic behaviors of a lithium salt in organic- and ionic liquid-based electrolytes. Phys. Chem. Chem. Phys. 21, 19216–19225 (2019).
Younesi, R., Veith, G. M., Johansson, P., Edström, K. & Vegge, T. Lithium salts for advanced lithium batteries: Li–metal, Li–O2, and Li–S. Energy Environ. Sci. 8, 1905–1922 (2015).
Xue, W. et al. Ultra-high-voltage Ni-rich layered cathodes in practical Li metal batteries enabled by a sulfonamide-based electrolyte. Nat. Energy 6, 495–505 (2021).
Qian, J. et al. High rate and stable cycling of lithium metal anode. Nat. Commun. 6, 6362 (2015).
Horwitz, G., Rodríguez, C., Factorovich, M. & Corti, H. R. Maximum electrical conductivity of associated lithium salts in solvents for lithium–air batteries. J. Phys. Chem. C 123, 12081–12087 (2019).
Hodgetts, R. Y. et al. Refining universal procedures for ammonium quantification via rapid 1H NMR analysis for dinitrogen reduction studies. ACS Energy Lett. 5, 736–741 (2020).
Xu, C. et al. Interface layer formation in solid polymer electrolyte lithium batteries: an XPS study. J. Mater. Chem. A 2, 7256–7264 (2014).
Takeda, Y., Yamamoto, O. & Imanishi, N. Lithium dendrite formation on a lithium metal anode from liquid, polymer and solid electrolytes. Electrochemistry 84, 210–218 (2016).
Rakov, D. A. et al. Engineering high-energy-density sodium battery anodes for improved cycling with superconcentrated ionic-liquid electrolytes. Nat. Mater. 19, 1096–1101 (2020).
Bard, A. J. & Faulkner, L. R. in Electrochemical Methods: Fundamentals and Applications 2nd edn, Ch. 13 (John Wiley & Sons, 2001).
Nilsson, V., Bernin, D., Brandell, D., Edström, K. & Johansson, P. Interactions and transport in highly concentrated LiTFSI-based electrolytes. ChemPhysChem 21, 1166–1176 (2020).
Lu, Y. et al. Stable cycling of lithium metal batteries using high transference number electrolytes. Adv. Energy Mater. 5, 1402073 (2015).
Haj Ibrahim, S. et al. Insight into cathode microstructure effect on the performance of molten carbonate fuel cell. J. Power Sources 491, 229562 (2021).
Hodgetts, R. Y., Du, H.-L., Nguyen, T. D., MacFarlane, D. & Simonov, A. N. Electrocatalytic oxidation of hydrogen as an anode reaction for the Li-mediated N2 reduction to ammonia. ACS Catal. 12, 5231–5246 (2022).