Co₃ZnC@NC Material Derived from ZIF-8 for Lithium-Ion Capacitors.

ABSTRACT: Metal-organic framework (MOF)-derived carbon materials were widely reported as the anodes of lithium-ion capacitors (LICs). However, tunning the structure and electrochemical performance of the MOF-derived carbon materials is still challenging. Herein, metal carbide materials of Co₃ZnC@NC-8:2 were obtained by the pyrolysis of the MOF materials of Co_0.2Zn_0.8ZIF-8 (Zn/Co ratio of 8:2). A half-cell assembled with the Co₃ZnC@NC-8:2 electrode exhibits a discharge capacity of the electrode material of 598 mAh g^-1 at a current density of 0.1 A g^-1. After 100 cycles, the retention rate of discharge specific capacity is about 90%. The high performance of Co₃ZnC@NC-8:2 is ascribed to its high crystalline degree and well-def

SUBMITTER: Tang Y 

PROVIDER: S-EPMC8567260 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature