Synthesis of hierarchical multilayer N-doped Mo2C@MoO3 nanostructure for high-performance supercapacitor application

•A multilayer N-doped Mo2C@MoO3 nanostructure was successfully syhthesized.•High surface area and higher hydrophilicity acheived by the addition of N-doped Mo2C@MoO3 nanocomposite.•Remarkable cyclic stability and cloumbic efficiency is reached.•Symmetrical supercapacitor showed energy density of 37.5 Wh kg−1 at a power density of 2.495 W kg−1.