Reaction-mediated structuring of three-dimensional honeycomb-structured graphene scaffold

•Honeycomb-structured graphene scaffolds were synthesized in solid-flame.•Graphene scaffolds exhibit cell sizes of 20–100 nm and wall thicknesses of 1–3 nm.•The specific surface area of the graphene was about ~1043 m2/g.•A promising material for thermal energy storage and dye-sensitized solar cells.

We demonstrated a facile approach for synthesizing three-dimensional (3D), honeycomb-structured graphene scaffold in the solid flame of a (0.5+k) Zn+kCuO+(CH2-CHCl)n reaction system. FESEM-based analyses of the acid purified porous graphene samples revealed that the synthesized graphene had a 3D, honeycomb-like structure with cell sizes of 20–100 nm and wall thicknesses of 1–3 nm. The specific surface area of the graphene sample prepared in the solid flame was about ~1043 m2/g).

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