2.3.2. Powder X-ray Diffraction (PXRD)

Powder X-ray diffraction (PXRD) patterns were recorded on a Bruker D8 ADVANCE X-ray powder diffractometer (Bruker, Germany) with Cu-Kα radiation at 40 KV and 40 mA. After sieving through 100 mesh, about 50 mg samples were measured in the 2-theta range of 5–50◦ at a scan rate of 8◦/min.
