Publisher Correction: Increase in Interfacial Adhesion and Electrochemical Charge Storage Capacity of Polypyrrole on Au Electrodes Using Polyethyleneimine

Correction to: Scientific Reports 10.1038/s41598-019-38615-6, published online 18 February 2019

In this Article, Figure 6 is a duplication of Figure 4. The correct Figure 6 appears below as Figure 1.

Figure 1.

(a) Cyclic voltammograms of 4-μm-thick pPy layers on surface-treated electrodes: Scan rate = 1 mV/s, electrolyte = 0.2 M HCl. (b) Charge capacity retention of the pPy layers as a function of scan rate (mV/s).