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Electrochemical Synthesis of Ammonia from Water and Nitrogen: A Lithium‐Mediated Approach Using Lithium‐Ion Conducting Glass Ceramics
Author(s) -
Kim Kwiyong,
Lee Seung Jong,
Kim DongYeon,
Yoo ChungYul,
Choi Jang Wook,
Kim JongNam,
Woo Youngmin,
Yoon Hyung Chul,
Han JongIn
Publication year - 2018
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201701975
Subject(s) - electrochemistry , ammonia , lithium (medication) , inorganic chemistry , faraday efficiency , chemistry , ammonia production , ion , nitrogen , chemical engineering , materials science , organic chemistry , electrode , medicine , engineering , endocrinology
Lithium‐mediated reduction of dinitrogen is a promising method to evade electron‐stealing hydrogen evolution, a critical challenge which limits faradaic efficiency (FE) and thus hinders the success of traditional protic‐solvent‐based ammonia electro‐synthesis. A viable implementation of the lithium‐mediated pathway using lithium‐ion conducting glass ceramics involves i) lithium deposition, ii) nitridation, and iii) ammonia formation. Ammonia was successfully synthesized from molecular nitrogen and water, yielding a maximum FE of 52.3 %. With an ammonia synthesis rate comparable to previously reported approaches, the fairly high FE demonstrates the possibility of using this nitrogen fixation strategy as a substitute for firmly established, yet exceedingly complicated and expensive technology, and in so doing represents a next‐generation energy storage system.