Hybrid Fibers Made of Molybdenum Disulfide, Reduced Graphene Oxide, and Multi‐Walled Carbon Nanotubes for Solid‐State, Flexible, Asymmetric Supercapacitors1. Issue 15 (18th February 2015)

• Record Type: Journal Article
• Authors: Sun, Gengzhi; Zhang, Xiao; Lin, Rongzhou; Yang, Jian; Zhang, Hua; Chen, Peng
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 15(2015)
• Page Start: 4651
• Page End: 4656
• Publication Date: 2015-02-18
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201411533
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>One of challenges existing in fiber‐based supercapacitors is how to achieve high energy density without compromising their rate stability. Owing to their unique physical, electronic, and electrochemical properties, two‐dimensional (2D) nanomaterials, e.g., molybdenum disulfide (MoS₂) and graphene, have attracted increasing research interest and been utilized as electrode materials in energy‐related applications. Herein, by incorporating MoS₂ and reduced graphene oxide (rGO) nanosheets into a well‐aligned multi‐walled carbon nanotube (MWCNT) sheet followed by twisting, MoS₂‐rGO/MWCNT and rGO/MWCNT fibers are fabricated, which can be used as the anode and cathode, respectively, for solid‐state, flexible, asymmetric supercapacitors. This fiber‐based asymmetric supercapacitor can operate in a wide potential window of 1.4 V with high Coulombic efficiency, good rate and cycling stability, and improved energy density.</p> </abstract>