title: MOF-derived cobalt-doped ZnO@C composites as a high-performance anode material for lithium-ion batteries.
abstract: Cobalt (Co)-doped MOF-5s (Co-MOF-5s) were first synthesized by a secondary growth method, followed by a heat treatment to yield Co-doped ZnO coated with carbon (CZO@C). Compared with carbon-coated ZnO (ZnO@C), the doping of Co increased the graphitization degree of the carbon on the surface of CZO@C nanoparticles and enhanced the conductivity of the material. The electrochemical properties of the materials were characterized by galvanostatic discharge/charge tests. It was found that the as-synthesized CZO@C composites enabled a reversible capacity of 725 mA h g(-1) up to the 50th cycle at a current density of 100 mA g(-1), which was higher than that of ZnO@C composites (335 mA h g(-1)).
authors.affiliation: School of Chemistry and Chemical Engineering, ‡Engineering Technology Research Center of Motive Power and Key Materials, and §Collaborative Innovation Center of Henan Province for Motive Power and Key Materials, Henan Normal University , Xinxiang Henan 453007, P. R. China.
authors.forename: Hongyun
authors.initials: H
authors.lastname: Yue
authors.forename: Zhenpu
authors.initials: Z
authors.lastname: Shi
authors.forename: Qiuxian
authors.initials: Q
authors.lastname: Wang
authors.forename: Zhaoxia
authors.initials: Z
authors.lastname: Cao
authors.forename: Hongyu
authors.initials: H
authors.lastname: Dong
authors.forename: Yun
authors.initials: Y
authors.lastname: Qiao
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Yin
authors.forename: Shuting
authors.initials: S
authors.lastname: Yang
keywords: anode material; cobalt doping; lithium-ion batteries; metal−organic frameworks; zinc oxide