Aligned Ni-Co-Mn oxide nanosheets grown on conductive substrates as binder-free electrodes for high capacity electrochemical energy storage devices. (1st December 2016)

• Record Type: Journal Article
• Authors: Chen, Sanming; Yang, Guang; Zheng, Huajun
• Is Part Of: Electrochimica acta. Volume 220(2016)
• Page Start: 296
• Page End: 303
• Publication Date: 2016-12-01
• Subjects: Ni-Co-Mn oxide -- hybrid supercapacitor -- chemical bath deposition -- nanosheet; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2016.10.119
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Hierarchical Ni-Co-Mn ternary oxide nanosheets on nickel foam have been synthesized by a two-step strategy involving chemical bath deposition (CBD) and subsequent thermal annealing treatment. The Ni-Co-Mn oxide nanosheets are directly used for electrochemical investigation and possess a high specific capacity of 715.1C g −1 at a current density of 1 A g −1 . Furthermore, a hybrid supercapacitor device is successfully fabricated by employing Ni-Co-Mn ternary oxide electrode as positive electrode and activated carbon (AC) as negative electrode. The hybrid supercapacitor device with optimized cell voltage of 1.6 V exhibits a maximum energy density of 36.4 Wh kg −1 at a power density of 320 W kg −1 and good cycling stability. The excellent electrochemical behaviors indicate that Ni-Co-Mn oxide nanosheets are highly desirable for high capacity energy storage devices.