3D interconnected networks of a ternary hierarchical carbon nanofiber/MnO2/Ni(OH)2 architecture as integrated electrodes for all-solid-state supercapacitors. Issue 76 (28th July 2016)

• Record Type: Journal Article
• Authors: Zhou, Dan; Niu, Hao; Lin, Huiming; Yang, Xue; Jiang, He; Zhang, Ting; Wang, Qian; Qu, Fengyu
• Is Part Of: RSC advances. Volume 6:Issue 76(2016)
• Page Start: 71882
• Page End: 71892
• Publication Date: 2016-07-28
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra13902g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : 3D interconnected networks of ternary hierarchical carbon nanofiber/MnO2 /Ni(OH)2 architectures are fabricated by a facile electrospinning method combined with hydrothermal approach. Abstract : We demonstrate the design and fabrication of hierarchical Ni(OH)2 nanosheets vertically grown on a porous carbon nanofiber/MnO2 composite (CF/MnO2 ) to form three dimensional interconnected networks via a facile hydrothermal process for supercapacitor applications. The obtained CF/MnO2 /Ni(OH)2 electrode exhibits high specific capacitance (2079 F g −1 at 0.5 A g −1 in 6 M KOH aqueous solution), rendering its promising application as a potential electrode for supercapacitors. In order to increase the energy density, an asymmetric supercapacitor (ASC) has been successfully fabricated using CF/MnO2 /Ni(OH)2 as the positive electrode and CFs as the negative electrode. The as-fabricated all-solid-state ASC device achieves a maximum energy density of 67.6 W h kg −1, highly comparable with the previously reported Ni(OH)2 -based ASCs. The present hierarchical CF/MnO2 /Ni(OH)2 ternary hybrid brings new opportunities to design and develop high-performance electrode materials for next-generation supercapacitors in flexible electronics.