Facile synthesis of loosely assembled α‐MnO2 nanofiber coated with GQD/PANI for enhancing capacity. (27th August 2020)

• Record Type: Journal Article
• Authors: An, Kun; He, Jianlong; Yang, Liangxing; Shen, Luyan; Sun, Youyi
• Is Part Of: International journal of energy research. Volume 44:Number 14(2020)
• Page Start: 12180
• Page End: 12187
• Publication Date: 2020-08-27
• Subjects: core‐shell -- GQD/PANI -- MnO2 nanofiber -- supercapacitor; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.5860
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: A new class α‐MnO2 nanofiber‐based on assemblies of nanoparticles was synthesized to improve the availability of Mn atom for application in electrochemical storage. Furthermore, the effect of graphene quantum dots/polyaniline (GQD/PANI) on the structure and electrochemical performance of α‐MnO2 nanofiber was investigated. The MnO2 nanofiber combined with GQD/PANI showed a larger specific capacitance of 1022.5 F g −1 at 1.0 A g −1 comparing to other MnO2 ‐based electrode materials. The result was attributed to α‐MnO2 nanofiber with loosely assembled structure and GQD/PANI with good conductivity, providing more electrochemical active sites and reducing internal resistance. The working does not only report new MnO2 ‐based electrode materials with high performance but also provides a facile method to synthesize α‐MnO2 nanofiber with a loosely assembled structure for various applications.