Nano-Porous ZnCo 2 O 4 /CoS 2 Heterostructured Framework as an Aqueous Asymmetric Supercapacitor

The development of advanced electrode materials with a high energy density and long-term stability is essential for next-generation supercapacitors. Herein, we report the synthesis of ZnCo2O4/CoS2 (ZCO/CS) nanocomposite via a facile two-step hydrothermal route that integrates ZnCo2O4(ZCO) nanorods with CoS2(CS) nanoplates to form a hybrid nanostructure. Structural and surface analyses using XRD, FESEM, TEM, and XPS confirm the successful formation of the ZCO/CS heterostructure with a nanoporous framework. Following BET analyses, an ∼8% increase in specific surface area along with an enhanced nanoscale porosity resulting from CS incorporation into ZCO corroborates the formation of a nanoporous framework. The…