Controllable synthesis of ultrathin nickel oxide sheets on carbon cloth for high-performance supercapacitors. Issue 37 (27th April 2017)

• Record Type: Journal Article
• Authors: Liu, Qianxiu; Lu, Chunxiang; Li, Ying
• Is Part Of: RSC advances. Volume 7:Issue 37(2017)
• Page Start: 23143
• Page End: 23148
• Publication Date: 2017-04-27
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra27550h
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Controllable synthesis of ultrathin nickle oxide sheets on carbon cloth for high-performance supercapacitors. Abstract : A small specific surface area and poor conductivity often limit the supercapacitor performance of metal oxide materials. In this work, we fabricated a nanocomposite based on NiO nanosheets with controllable size and thickness on carbon cloth (CC) by a cost-effective and scalable chemical precipitation method. The ultrathin nanosheets are coated on the CC with a diameter of 400 nm, showing a large specific surface area. The sample as a supercapacitor electrode displays a high specific capacitance (600.3 F g −1 at 1 A g −1 ), great rate capability and excellent long-term cycling life (98.1% after 3000 cycles). These great performances are attributed to the free-standing structure of the NiO nanosheets on the CC and the intimate contact of the NiO and CC. Also, an all-solid-supercapacitor was assembled to prove the possible prospects of the materials for flexible devices.