Fig. 1: Synthesis and structural characterization results.
From: Multilayer stabilization for fabricating high-loading single-atom catalysts

a Illustration of the preparation process for the Fe-SA-NSFC and b TEM, c HRTEM, and d HAADF-STEM images of the Fe-SA-NSFC. e Enlarged HAADF-STEM image and corresponding element maps for C, Fe, N, S, and F. f AC-HAADF-STEM image and g high-magnification AC-HAADF-STEM image of the Fe-SA-NSFC. Scale bars: b 200 nm, c 5 nm, d 200 nm, e 100 nm, f 5 nm, and g 2 nm.