Preparation of Three-Layer Graphene Sheets from Asphaltenes Using a Montmorillonite Template

Table 1

Results of XRD analysis of graphene/MMT samples at six conditions.

Temperature	Time (min)	(°)	Peak height	FWHM (°)	Crystallinity (%)
600°C	15	23.11	21	2.317	50.84
	30	23.09	97	1.913	45.19
	60	23.12	97	2.449	54.43
700°C	15	23.09	33	1.620	78.63
	30	22.92	67	2.635	33.93
	60	23.12	33	1.762	59.90