Figure 1: Growing graphene films in the ambient-air process. | Nature Communications

Figure 1: Growing graphene films in the ambient-air process.

From: Single-step ambient-air synthesis of graphene from renewable precursors as electrochemical genosensor

Figure 1

(a) Polycrystalline Ni foil is thermally annealed together with soybean oil precursor, and the controlled synthesis of graphene is promoted in an ambient-air environment. Graphene films can then be transferred onto glass substrate. (b) Raman spectra indicate the presence of 1-layer, 2-layer and ≥3-layer regions in the graphene film grown at 800 °C. Scale bar, 1 cm in a.

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