fig1
From: Atomically dispersed trimetallic oxygen electrocatalysts for advancing rechargeable zinc-air battery
Figure 1. (A) Schematic illustration of the synthesis of Fe-Co-Ni trimetallic SACs on PNC support; TEM images of (B) Fe30Co30Ni30-PNC, (C) Fe50Co20Ni20-PNC, (D) Fe20Co50Ni20-PNC, and (E) Fe20Co20Ni50-PNC. SACs: Single-atom catalysts; PNC: phosphorus and nitrogen doped carbon; TEM: transmission electron microscope.
