Fig. 2: Suppression of Parasitic Reaction through Grain Boundary Engineering.
From: Tailoring grain boundary stability of zinc-titanium alloy for long-lasting aqueous zinc batteries
a Tafel plots. b Ex-situ XRD patterns of Zn anodes after immersion in ZnSO4 electrolyte for different days. c Cross-sectional SEM images of Zn anodes after 50 cycles. Schematic diagram of d general corrosion and e intergranular corrosion. f EBSD IPF mapping images of Zn anodes at pristine state and after 24 h of immersion. Different colors represent distinct crystal orientations, while the white parts correspond to unrecognizable phases, attributable to corrosion pits or TiZn16 IMCs. g Corresponding ratio of phase recognition based on image identification. The error bars indicate the mean absolute deviation. CLSM imaging of corrosion morphologies on h bare Zn and i Zn-Ti alloy, and corresponding surface profiles extracted along the ___location marked. j “Reservoir” protocol for evaluating average Zn plating/stripping CE.
