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Enzyme‐Inspired Room‐Temperature Lithium–Oxygen Chemistry via Reversible Cleavage and Formation of Dioxygen Bonds
Author(s) -
Wang Chengyi,
Zhang Zihe,
Liu Weiwei,
Zhang Qinming,
Wang XinGai,
Xie Zhaojun,
Zhou Zhen
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202009792
Subject(s) - chemistry , peroxide , superoxide , catalysis , lithium (medication) , oxygen , bond cleavage , redox , photochemistry , inorganic chemistry , combinatorial chemistry , enzyme , organic chemistry , medicine , endocrinology
Li‐O 2 batteries are promising energy storage systems due to their ultra‐high theoretical capacity. However, most Li‐O 2 batteries are based on the reduction/oxidation of Li 2 O 2 and involve highly reactive superoxide and peroxide species that would cause serious degradation of cathodes, especially carbon‐based materials. It is important to explore lithium‐oxygen reactions and find new Li‐O 2 chemistry which can restrict or even avoid the negative influence of superoxide/peroxide species. Here, inspired by enzyme‐catalyzed oxygen reduction/oxidation reactions, we introduce a copper(I) complex 3 N‐Cu I (3 N=1,4,7‐trimethyl‐1,4,7‐triazacyclononane) to Li‐O 2 batteries and successfully modulate the reaction pathway to a moderate one on reversible cleavage/formation of O−O bonds. This work demonstrates that the reaction pathways of Li‐O 2 batteries could be modulated by introducing an appropriate soluble catalyst, which is another powerful choice to construct better Li‐O 2 batteries.