Figure 2
In situ SAXS profiles for heating in N2 atmosphere followed by calcination at 275°C using 2 mol% of O2. The highlighted areas underneath the first profile correspond to the diffuse intensity Idiff (light color) and the Bragg intensity IBragg (dark color). Bragg peaks originating from the 2D hexagonal structure, as indicated in the inset in the top left, are indexed with 2D Miller indices. |