Molten Salt Synthesis of Multiple Manganese Oxides/Graphene Composites in Facile and Large Scale with Enhanced Supercapacitor Performance

Abstract:

A facile and effective approach to assemble graphene hybridized multiple manganese oxides /graphene ((m-MnO₂/Gr) was explored. The structure varied from two-dimensional (2D) to one-dimensional (1D) club-shaped manganese oxides via blending of Gr into the molten salt precursor. Compared to the m-MnO₂ and pristine Gr electrode, the m-MnO₂/Gr composites displayed a superior synergistic effect in promoted capacitive performance, cycle performance, with capacity retention of about 90% after 2000 charge-discharge cycles. It expects to supply a promising strategy to synthesize large scalable production of hybrid supercapacitor electrode.

• Periodical: Materials Science Forum (Volume 1035)
• Pages: 746-751
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1035.746
• Online since: June 2021
• Authors: Ning Tan, Yan Hua Lei*, Kai Sun, Shi Bin Sun, Guan Hui Gao
• Keywords: Graphene, MnO₂, Nanocomposite, Sintering, Supercapacitor

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