Fig. 1: Scanning transmission electron microscopy imaging of catalysts.

A Scheme of the synthesis process of AgCu catalysts; B BF-STEM image of AgCu SANP; C HAADF-STEM image of AgCu SANP; D AC-HAADF-STEM image of AgCu SANP; E STEM and EDX element mapping images of AgCu SANP.