Interconnected network of ultrafine MnO2 nanowires on carbon cloth with weed-like morphology for high-performance supercapacitor electrodes. (1st April 2018)

• Record Type: Journal Article
• Authors: Xu, Zhihui; Sun, Shishuai; Cui, Wen; Lv, Jiang; Geng, Yaohui; Li, Hui; Deng, Jiachun
• Is Part Of: Electrochimica acta. Volume 268(2018)
• Page Start: 340
• Page End: 346
• Publication Date: 2018-04-01
• Subjects: MnO2 -- Supercapacitor -- Electrode -- Nanowire -- Ultrafine structure; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2018.02.138
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: A binder-free electrode of ultrafine MnO2 nanowires grown on the carbon cloth (CC) were fabricated by simple hydrothermal method, exhibiting the interconnected network with weed-like morphological feature. The unique pore structure has a large interface surface area, and allows rapid electrolyte diffusion through its hollow/open framework and fast electron transfer though the carbon skeleton. As an electrode for supercapacitors, the ultrafine MnO2 nanowires grown on the CC (ultrafine MnO2 nanowires@CC) exhibit a high specific capacitance (1174.3 F g −1 at the moderate current density of 2 A g −1 ), excellent rate property (stabilize at 927 F g −1 as the current density increases to 40 A g −1 ), and good cycling stability (a negligible 0.1% decay in specific capacitances after 10, 000 cycles).