1 research outputs found
Carbon-Induced Generation of Hierarchical Structured Ni<sub>0.75</sub>Co<sub>0.25</sub>(CO<sub>3</sub>)<sub>0.125</sub>(OH)<sub>2</sub> for Enhanced Supercapacitor Performance
No full textHierarchical
nanostructures with heteroatom doping have been considered as an important
component in electrode materials for advanced supercapacitors. Herein, with
the aid of C, N, and S codoped Ni<sub>0.75</sub>Co<sub>0.25</sub>(CO<sub>3</sub>)<sub>0.125</sub>(OH)<sub>2</sub>/C (NSH) with a hierarchical
structure was synthesized through a facile one-step hydrothermal method.
Notably, it is the first report on a carbon precursor as a structure
inducer for designing a three-dimensional (3D) carnation-like hierarchical
structure. Thanks to the carbon induction effect and the introduction
of N/S dopants, the obtained NSH with a 3D architecture exhibits superior
performances as electrode materials for supercapacitors. For example,
NSH offers a high specific capacity of 277.3 mAh/g at 0.5 A/g. Moreover,
the assembled NSH//reduced graphene oxide hydrogel-based hybrid supercapacitor
exhibits high energy densities of 44.4 and 11.7 Wh/kg at power densities
of 460 W/kg and 9.8 kW/kg, respectively. This result opens up opportunities
for carbon-induced methods to control the morphology and structure
of other similar materials
