title: MOF-Derived ZnO/Ni3ZnC0.7/C Hybrids Yolk-Shell Microspheres with Excellent Electrochemical Performances for Lithium Ion Batteries.
abstract: In this study, ZnO/Ni3ZnC0.7/C spheres were synthesized successfully via a simple method based on metal-organic frameworks (MOFs). The experimental results show that the reaction time has a great influence on the structure of the material. ZnO/Ni3ZnC0.7/C spheres with controlled solid and yolk-shell structures have been obtained by altering the reaction time. When applied as anode materials, both the solid and the yolk-shell ZnO/Ni3ZnC0.7/C composites present excellent electrochemical performance. In addition, it is worth mentioning that the yolk-shell structure composite's property is superior to that of the solid one's in terms of lithium storage. The stable reversible capacity of yolk-shell ZnO/Ni3ZnC0.7/C can be retained at 1002 mA h g(-1) at 500 mA g(-1) after completion of 750 cycles, and it also exhibits superior rate performance. In contrast, the solid ZnO/Ni3ZnC0.7/C under the same conditions of testing shows a reversible capacity of 824 mA h g(-1).
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Yacong
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Jiandi
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Chunge
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Materials Science and Engineering, College of Materials, Xiamen University , Xiamen 361005, China.
authors.forename: Guanghui
authors.initials: G
authors.lastname: Yue
keywords: ZnO/Ni3ZnC0.7/C; anodes; lithium ion batteries; metal−organic frameworks; yolk−shell structure