Phase Transformation of VO₂ Nanoparticles Assisted by Microwave Heating

Table 1

Summary of grain size and phases of vanadium oxides after calcinations of the microwave assisted samples at different temperatures.

Temperature of calcinations (°C)	Microwave power	Phase from XRD	Grain size calculated using Scherrer equation (nm)
400	Oven	V2O3 + V4O7	56.6
	180 W	V2O3	42.7
	300 W	V2O3	42.5
	600 W	V2O3	24.3
500	Oven	V2O3 + V3O5	42.2
	180 W	V2O3 + V3O5	41.5
	300 W	VO2 (M)	41.6
	600 W	—	—
600	Oven	V2O3 + V3O5	42.6
	180 W	—	—
	300 W	VO2 (M)	41.6
	600 W	V2O3 + V3O5	42.5
700	Oven	VO2 (M) + V4O7	41.6
	180 W	—	—
	300 W	VO2 (M) + V4O7	55.5
	600 W	VO2 (M) + V4O7	41.5