Fig. 4: TEM images of catalysts after exposure to reaction conditions.
From: Dynamic behavior of molecular Pd-acetate trimers and dimers in heterogeneous vinyl acetate synthesis
a, b HR-TEM images of PdOAc/SiO2 (a) and PdOAc/KOAc/SiO2 (b) catalysts after exposure to reaction conditions. Pd(111) lattice spacings are presented for each image in (a, b). Scale bars represent 2 nm for all images in (a, b). c, d HAADF-STEM images and their corresponding particle size distributions for PdOAc/SiO2 (c) and PdOAc/KOAc/SiO2 (d) catalysts after exposure to reaction conditions. Scale bars represent 20 nm for all images in (c, d). Particle size distributions in (c, d) were generated by measuring at least 300 particles. PdOAc/SiO2 and PdOAc/KOAc/KOAc catalysts are identified by red and blue, respectively, in (a–d).
