Cobalt-doping in hierarchical Ni<sub>3</sub>S<sub>2</sub> nanorod arrays enables high areal capacitance
Qiang Chen, Jialun Jin, Zongkui Kou, Jiangmin Jiang, Yulu Fu, Ziang Liu, Liang Zhou, Liqiang Mai
Abstract
Cobalt-doped Ni<sub>3</sub>S<sub>2</sub> nanorod arrays have been prepared <italic>via</italic> a hydrothermal method. As a free-standing electrode, the Co-Ni<sub>3</sub>S<sub>2</sub> demonstrates ultrahigh areal capacitance, affording the Co-Ni<sub>3</sub>S<sub>2</sub>//FeOOH hybrid supercapacitor a high energy density.
Topics & Concepts
NanorodSupercapacitorCapacitanceCobaltMaterials scienceDopingHydrothermal circulationElectrodeOptoelectronicsNanotechnologyAnalytical Chemistry (journal)Chemical engineeringChemistryMetallurgyPhysical chemistryEngineeringChromatographySupercapacitor Materials and FabricationElectrocatalysts for Energy ConversionAdvanced battery technologies research