Iron-doped nickel sulfide nanospheres anchored on reduced graphene oxide for high performance supercapacitors

Abstract

Doping of metal atoms into the metal sulfide lattice is a promising strategy to enhance the intrinsic ion/electron transport capability and thus the electrochemical properties. The iron dopped nickel sulfides...

Cobalt-Doped Vanadium Sulfide Nanorods Anchored on Graphene for High-Performance Supercapacitors

“…The energy density remains at 49 W h kg −1 , even at a high power density of 23520 W kg −1 , that is advantageous compared with the previously reported ASC devices, such as VS 4 @NF//AC@NF (38.5 W h kg −1 at 750 W kg −1 ), 15 CuSe@MnSe//AC (19.54 W h kg −1 at 266 W kg −1 ), 44 V-CoP@MX/HCF//Co-CNT@CNF (72.4 W h kg −1 at 800 W kg −1 ), 7 Mn-NiS NS//ONAC (44.2 W h kg −1 at 825 W kg −1 ), 17 Co-doped W 18 O 49 /CC//AC/CC (35 W h kg −1 at 801 W kg −1 ), 16 and NiCoFe-LDH/Ti 3 C 2 //rGO (30.5 W h kg −1 at 800 W kg −1 ). 45 Thr inset of Figure 5f shows the practical applicability of the ASC device by a glowing green LED.…”