Fig. 2: The electrochemical behavior of Zn2+ ions.
From: Self-repairing interphase reconstructed in each cycle for highly reversible aqueous zinc batteries
a Pristine C3N4QDs on mica (left) and the C3N4QDs in ZnSO4 aqueous electrolyte on HOPG (right), the inset is the height profiles of the corresponding lines; In situ AFM images of Zn electrodeposits on HOPG with a current density of 100 µA cm-2 in b–e 2 M ZnSO4 + 0.5 mg mL−1 C3N4QDs electrolyte and f–j 2 M ZnSO4 electrolyte. Scale bar: 50 nm for a; 200 nm for b, c, f; 1 μm for d, e, g–j.
