Figure 5
From: Bifunctional catalytic effect of Mo2C/oxide interface on multi-layer graphene growth
Reduction in the H environment follows the trend as SiO2 > TiO2 > Al2O3 > MgO31. (d) Schematic view shows the presence of O–H bonds with respect to reduction on oxide surface. Raman results are given, indicating MLG growth for SiO2 patterned sample (a), local growth with the appearance of small 2D peak for TiO2 patterned sample (b) and no growth for Al2O3 patterned sample (c). SEM results after CVD process is given with (d) SiO2, (e) TiO2, (f) Al2O3, (g) MgO lines on Mo2C, showing the C species with dark contrast in elemental contrast mode images.
