Author Correction: High-performance freestanding supercapacitor electrode based on polypyrrole coated nickel cobalt sulfide nanostructures

Correction to: Scientific Reports https://doi.org/10.1038/s41598-022-08691-2, published online 17 March 2022

The original published version of this article contained errors in Figure 2. Both panels showed the NiCo₂S₄@PPy nanomaterial and, in addition, Figure 2b partially overlapped with Figure 6i. The error happened during the assembly of the original Figure. The original Figure 2 and accompanying legend appear below.

Figure 2.

SEM images of NiCo₂S₄ (a) and NiCo₂S₄@PPy nanomaterial (b).

The original article has been updated.