An exquisite electrode material using aramid nanofibers with enhanced discharge capacity and catalytic conversion of polysulfides. Issue 40 (8th October 2020)

• Record Type: Journal Article
• Authors: Liao, Kexuan; Wei, HuanHuan; Shi, Penghui; Fan, Jinchen; Xu, Qunjie; Min, Yulin
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 40(2020)
• Page Start: 21163
• Page End: 21172
• Publication Date: 2020-10-08
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0ta07851d
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Composite materials obtained by in situ growth of metal nanoparticles on a three-dimensional carbon network are approved as promising electrode materials. Abstract : Composite materials obtained by in situ growth of metal nanoparticles on a three-dimensional carbon network are approved as promising electrode materials. Herein, we simply split a polymer chain into a single chain to attract metal-cations, and then obtain a three-dimensional carbon fiber composite with in situ grown manganese oxide nanoparticles (MnO@N-CNFs) in the subsequent pyrolysis process. It can be used not only as an electrode material for supercapacitors, but also as a cathode host for lithium–sulfur batteries. After the capacitance performance test, MnO@N-CNFs were found to have a discharge capacity greater than the charge capacity. As a cathode host for a lithium–sulfur battery, they attract a large amount of polysulfide to accelerate conversion from the long-chain molecules to short-chain molecules, which can improve the kinetics during the electrochemical process.