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Figure 1

From: CVD graphene as an electrochemical sensing platform for simultaneous detection of biomolecules

Figure 1

(a) Schematic diagram of electrolytic cell and electrodes. Dissolved oxygen was removed by passing N2 into the electrolytic cell. Counter electrode (CE), reference electrode (RE), and working electrode (WE) are platinum sheet, saturated calomel electrode, and graphene/Ta wire, respectively. (b) Top-view and (c) cross-sectional SEM images of graphene nanosheets. (d) High-resolution TEM image of graphene nanosheets. (e) AFM image of graphene nanosheets. (e) Inset showing height profile along line. (f) Raman spectrum and (g) XRD pattern of graphene/Ta wire.

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