Figure 1
From: Low temperature hydrogenation of iron nanoparticles on graphene

Atomic model of FeH cluster on graphene/Cu(111), a) side view and b) top view. (c) Fe4 and (d) Fe7 clusters on graphene/Cu(111). Hydrogenated (e) Fe4 and (f) Fe7 clusters on graphene/Cu(111). Atomic color codes: Fe, ochre; H, white; C, gray; Cu; red.