Fig. 3 | npj 2D Materials and Applications

Fig. 3

From: All-solid-state high-energy planar hybrid micro-supercapacitors based on 2D VN nanosheets and Co(OH)2 nanoflowers

Fig. 3

Electrochemical characterization of VN//Co(OH)2-PHMSs in 1 M KOH aqueous electrolyte. a Schematic of VN//Co(OH)2-PHMSs and cross-sectional SEM images of Co(OH)2 positive electrode (left) and VN negative electrode (right), scale bar are 1 μm. b CV curves of Co(OH)2 and VN electrodes recorded at 10 mV s−1 in a three electrode cell (vs. Hg/HgO). Inset: Photograph of the as-fabricated two VN//Co(OH)2-PHMSs in a bending state. c CV curves tested at a working voltage of 1.5 V at different scan rates from 2 ~ 50 mV s−1, d GCD curves obtained at different current densities from 0.2 ~ 5 mA cm−2, e areal capacitance and volumetric capacitance as a function of current density

Back to article page