Phase analysis was performed by X-ray diffractrometry (XRD) using a D8 Advance (Bruker axes, Germany) diffractometer with Cu-K_radiation (_ = 1.5418 ล).
Phase analysis was performed by X-ray diffractrometry (XRD) using a D8 Advance (Bruker axes, Germany) diffractometer with Cu-K_radiation (_ = 1.5418 ล).