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Bullet‐like Cu 9 S 5 Hollow Particles Coated with Nitrogen‐Doped Carbon for Sodium‐Ion Batteries
Author(s) -
Fang Yongjin,
Yu XinYao,
Lou Xiong Wen David
Publication year - 2019
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.201902988
Subject(s) - materials science , carbon fibers , nitrogen , sodium , doping , ion , electrode , chemical engineering , nanotechnology , redox , chemistry , optoelectronics , composite material , metallurgy , composite number , organic chemistry , engineering
Metal sulfides with excellent redox reversibility and high capacity are very promising electrode materials for sodium‐ion batteries. However, their practical application is still hindered by the poor rate capability and limited cycle life. Herein, a template‐based strategy is developed to synthesize nitrogen‐doped carbon‐coated Cu 9 S 5 bullet‐like hollow particles starting from bullet‐like ZnO particles. With the structural and compositional advantages, these unique nitrogen‐doped carbon‐coated Cu 9 S 5 bullet‐like hollow particles manifest excellent sodium storage properties with superior rate capability and ultra‐stable cycling performance.