*2.5. Study of Phase Composition*

X-ray diffraction (XRD) analysis was used to determine the phase composition of the samples. The XRD patterns were obtained by PANalytical Empyrean X-ray diffractometer (Malvern Panalytical, Malvern, UK) with CoKα radiation by a simple scanning mechanism in the theta-2theta-mode with a step of 0.026◦ and a scanning rate of 4.5◦/min. Phase composition analysis was performed using the PANalytical High Score Plus software [29] and the ICCD PDF-2 and COD databases [30].
