Hard-template-engaged formation of Co2V2O7 hollow prisms for lithium ion batteries. Issue 4 (9th January 2018)

• Record Type: Journal Article
• Authors: Chu, Xuefeng; Wang, Huan; Chi, Yaodan; Wang, Chao; Lei, Lei; Zhang, Wentong; Yang, Xiaotian
• Is Part Of: RSC advances. Volume 8:Issue 4(2018)
• Page Start: 2072
• Page End: 2076
• Publication Date: 2018-01-09
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra11373k
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A novel hard-template-assisted method is developed to fabricate high quality Co2 V2 O7 hollow nanoprisms. When evaluated as anode materials for lithium ion batteries, they exhibited a remarkable enhanced performance compared with the solid ones. Abstract : Highly uniform and monodispersed Co2 V2 O7 hollow nanoprisms are successfully fabricated via a simple hard-template-engaged strategy. In such synthesis, Co acetate hydroxide plays the important role of not only the cobalt source, but also the sacrificial template. After coating with a carbon layer, the as-obtained Co2 V2 O7 hollow nanoprisms exhibit apparently enhanced lithium-ion-battery performances. It has shown a high specific capacity of around 946 mA h g −1 at a current density of 100 mA g −1, excellent cycling stability up to 300 cycles at a current density of 1 A g −1, and superior rate performance, which is much better than carbon coated solid Co2 V2 O7 samples.