Construction of nickel cobalt sulfide nanosheet arrays on carbon cloth for performance-enhanced supercapacitor

Tao Liu, Jiahao Liu, Liuyang Zhang, Bei Cheng, Jiaguo Yu

Table 1 Comparison of our work with related literature on energy density and power density.

Materials Electrolyte Voltage range (V) Power density (W kg-1) Energy density (W h kg-1) Refs. NiCo hydroxides/graphene aerogel 3 M KOH 1.6 1600 34.9 [59] Hollow NiCoP nanosphere 6 M KOH 1.0 100 10.2 [60] NiCoMn ternary sulfide nanoneedles on Ni foam 3 M KOH 1.6 390 36.2 [61] CoSx/Ni-Co LDH nanocages 2 M KOH 1.6 800 35.8 [62] NiCo2S4/graphene aerogel PVA-KOH gel 1.6 800 20.9 [63] NiCo2S4 nanocages 3 M KOH 1.6 689 41.4 [64] NiCo hydroxide/carbon nanotube 6 M KOH 1.4 701 37.9 [65] NiCo2S4@Ni3S2 hybrid nanoarray on Ni foam 1 M KOH 1.5 725 35.2 [50] NiCo2S4 nanoneedles on mesocarbon microbeads 3 M KOH 1.4 700 26.6 [66] NiCo2S4@CoS2 on carbon cloth 2 M KOH 0.55 242 17.0 [67] Nickel-cobalt phosphide hollow microspheres 1 M KOH 1.4 1823 35.6 [68] Nickel nanowire @NiCo2S4 arrays 1 M KOH 1.6 793 47.3 [69] Nickel cobalt selenide complex hollow spheres 3 M KOH 1.6 800 29.1 [70] NiCo double hydroxide microspheres 6 M KOH 1.6 400 42.5 [71] NiCo2S4/g-C3N4 2 M NaOH 0.9 200 16.7 [72] NiCo2S4-rGO 1 M KOH 1.6 1600 36.0 [73] NiCoS/CC 2 M KOH 1.5 379 40.0 This work