Figure 1From: Morphology and property control of NiO nanostructures for supercapacitor applicationsXRD patterns of the non-annealed (sample 1) and annealed samples (samples 2 and 3). The patterns are shifted vertically for clarity. The annealed samples show the presence of NiO peaks. The reflexes of Ni are still observed and arise from the incomplete oxidation of the Ni supporting layer. The stars and tick marks denote the Au-Ni alloy and Au, respectively.Back to article page