Electrochemical properties of Ni(OH)2/MnO2 on hybrid N-doped carbon structure as high-performance electrode material

Abstract

Effect of conductive additives to gel electrolytes on activated carbon-based supercapacitors AIP Advances 5, 097171 (2015); https://doi.org/10.1063/1.4931956 AIP ADVANCES 8, 075223 (2018) A hierarchical hybrid architectures are very crucial through assembly of various carbon-based materials such as graphene and carbon nanotubes to achieve highperformance supercapacitors for energy storage. In this study, we propose a new pyrolysis method to prepare nitrogen-doped hybrid carbon structure (N-HCS). Then, the binary metal hydroxides Ni(OH) 2 /oxide MnO 2 deposited on N-HCS with multifunctionality between them, exhibits an excellent specific capacitance as high as1563F/g at 1A/g in 1mol/L Na 2 SO 4 solution and stable cycling performance remaining 80% of the initial specific capacitance after 1000 cycles at current density of 10A/g. This work paves a pathway to prepare electrode materials of Ndoped carbon structure/Ni(OH) 2 /MnO 2 with high performance for applying in energy storage and conversion. © 2018 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license