Fig. 4. (a) Fabrication process of the CuV-CoV composite. (b) SEM and TEM images of the CuV-CoV composite. (c) (i, ii) Comparative CV and GCD curves of the CuO, CuO-Co
3O
4, and CuV-CoV electrodes. (c) (iii-vi) CV curves and current contribution at various scan rates and GCD curves at various current densities for the CuV-CoV electrode. (d) electrochemical properties of the CuV-CoV electrode-based solid-state HSCs. Adapted with permission from [
17], Copyright 2020, Wiley. (e-h) SEM, TEM, and HR-TEM images, and electrochemical properties of α-Co(OH)
2-A, α-Co(OH)
2–C, and β-Co(OH)
2–W electrodes. Adapted with permission from [
18], Copyright 2020, Elsevier.
© Appl. Sci. Converg. Technol.