A facile method to synthesize CoVO as a high-performance supercapacitor cathode

• Published in: RSC advances 2019-03, Vol.9 (17), p.9475-9479
• Main Authors: He, Xinrui, Jiang, Jing, Tian, Hanqing, Niu, Yi, Li, Zhipeng, Hu, Yalin, Fan, Jiahao, Wang, Chao
• Format: Article
• ISSN: 2046-2069
• DOI: 10.1039/c8ra10041a

Transition metal oxides can easily lose electrons and thus possess multiple accessible valences. Especially, if two different transition metals are combined, better capacity and cycling stability are achieved. In this study, a binary transition metal oxide, CoV 2 O 6 , was synthesized via a facile co-precipitation process for use as a supercapacitor cathode; the as-synthesized CoV 2 O 6 exhibited high-capacity (306.6 F g −1 , 1 A g −1 and 219.2 F g −1 , 20 A g −1 ) and stable cycling stability, retaining 83.3% of its initial specific capacitance after 20 000 cycles. We believe that this facile synthesis process presents an effective method and a new opportunity for promoting the application of electrode materials based on binary transition metal oxides in supercapacitors. A facile chemical co-precipitation process to synthesize CoV 2 O 6 , which exhibits high capacity and cycling stability (83.3% after 20 000 cycles).