1 Correction to: Journal of Applied Electrochemistry https://doi.org/10.1007/s10800-021-01634-1

In the original publication, Fig. 3 was processed incorrectly. The correct Fig. 3 is provided in this correction.

Fig.3
figure 3

A Linear sweep voltammetry curves of Bare Ti, Ti/nanoZnO, and Ti/nanoZnO–CuO electrodes in 0.1 mol L−1 Na2SO4 solution at scan rates of 50 mV s−1, B Tofel plots of Ti/nanoZnO–CuO and Ti/nanoZnO, C Linear sweep voltammetry curves of Ti/nanoZnO and Ti/nanoZnO–CuO in 1 g L−1 NaCl solution at scan rates of 50 mV s−1

The original article has been corrected.