Fig. 6
From: Evolution and stabilization of subnanometric metal species in confined space by in situ TEM
Stability test of 0.17%Pt@MCM-22-300H2 under NO + H2 conditions. During the in situ TEM experiments, the sample was treated in mixture of H2 (0.1 torr) and NO (0.1 torr) for 15 min at different reaction temperature, respectively. The above images were recorded in the presence of NO+H2 gases at different temperature. a 200 °C, b 400 °C, c 600 °C, d 800 °C, e 1,000 °C, f 1,200 °C. Scale bar in all the images in this figure: 20 nm
