Superior Cycle Stability Performance of Quasi-Cuboidal CoV2O6Microstructures as Electrode Material for Supercapacitors.
In this study, a rapid, facile, and environment-friendly microwave-assisted method followed by annealing for synthesizing the quasi-cuboidal CoV2O6is developed. The as-prepared samples manifest high supercapacitor properties with a specific capacitance of 223 F g-1, good rate capability, and superior cycle stability, retaining 123.3% capacitance when the number of cycles reaches 15,000 after determined by electrochemical tests. More importantly, the quasi-cuboidal CoV2O6for the first time is introduced into the supercapacitor as a kind of electrode material. The superior electrochemical performance of the quasi-cuboidal CoV2O6will render the metal vanadium oxides as new and attractive active material for promising application in supercapacitors.
Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Institute of Applied Chemistry, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Yucheng
Y
Wang
Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Institute of Applied Chemistry, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Hui
H
Chai
Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Institute of Applied Chemistry, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Hong
H
Dong
Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Institute of Applied Chemistry, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Jiayu
J
Xu
Key Laboratory of Energy Materials Chemistry, Ministry of Education, Key Laboratory of Advanced Functional Materials, Institute of Applied Chemistry, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Dianzeng
D
Jia
College of Chemistry & Chemical Engineering, Xinjiang University , Urumqi 830046, Xinjiang, P. R. China.
Wanyong
W
Zhou
CoV2O6; electrode materials; microwave-assisted; pseudocapacitors; quasi-cuboidal; supercapacitor