Enhanced cycling stability performance for supercapacitor application of NiCoAl-LDH nanofoam on modified graphite substrate

•The NiCoAl-LDH electrode materials on modified graphite substrate were fabricated.•The Zn and Cu modified graphite surfaces were prepared by galvanostatic deposition.•The morphology of the NiCoAl-LDH films were influenced by the modified surfaces.•The NiCoAl-LDH nanofoam on Cu/Zn/G showed the best performance for supercapacitors.•The G//NiCoAl-LDH/Cu/Zn/G device had excellent cycling-stability over 10,000 cycles.