Table 1.

Comparison of thermal conductivity enhancements of our as-prepared nanofluid with reported graphene-based nanofluids.

Materials	Base Fluid	Loading	Enhancement %	References
graphene	water	0.2 vol %	27	[13]
graphene	water	0.05 wt %	17	[15]
rGO	water	0.03 wt %	10	[16]
f-HEG	water	0.05 vol %	16	[23]
rGO-Fe3O4	water	0.5 vol %	11	[26]
GNP–Ag	water	0.1 wt %	22	[27]
graphene-CuO	water	0.5 vol %	28	[28]
graphene-SiO2	water	0.1 wt %	20	[29]
rGO/TiO2	water	0.1 wt %	33	[30]
SnO2/rGO	water	0.1 wt % (0.078 vol %)	31	This work