Hierarchically porous CoNiO2 nanosheet array films with superior sodium storage performance. (7th November 2017)

• Record Type: Journal Article
• Authors: Chang, Ling; Wang, Kai; Huang, Liangai; He, Zhishun; Shao, Haibo; Wang, Jianming
• Is Part Of: New journal of chemistry. Volume 41:Number 23(2017)
• Page Start: 14072
• Page End: 14075
• Publication Date: 2017-11-07
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj03241b
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : The hierarchically porous CoNiO2 nanosheet array film prepared via a low-temperature solvothermal method manifests superior sodium storage performance. Abstract : Nanostructured transition metal oxides are considered as some of the promising anode materials for rapidly emerging sodium ion batteries. Herein, a hierarchically porous CoNiO2 nanosheet array film is prepared via a low-temperature solvothermal method with subsequent annealing treatment. As a self-supported anode for sodium ion batteries (SIBs), the as-prepared hierarchically porous CoNiO2 nanosheet array film manifests superior sodium storage performance. The film electrode delivers a large reversible capacity of 746.6 mA h g −1 after 100 cycles at 200 mA g −1 . In particular, a capacity of 419 mA h g −1 is achieved at a high current density of 1600 mA g −1, demonstrating a good rate capability.