Figure 1
From: Green preparation of reduced graphene oxide for sensing and energy storage applications
Structure characterizations of GO and CA-rGO.
(a) TEM and (b, c) HRTEM images of 24h-CA-rGO. Inset: SAED patterns. (d) Digital photographs of aqueous dispersions of GO before and after reduction by CA for different reaction time. (e) Water droplet on the surface of GO and CA-rGO sheets. The error in the contact angle measurements is on the order of 0.1% of the measured values. (f) Tapping-mode AFM images and the corresponding height profiles of GO and 24h-CA-rGO dispersed on a mica substrate. About twenty 24h-CA-rGO sheets were characterized by AFM (Supplementary Information, Fig. S1). The height and size distributions of the 24h-CA-rGO sheets were obtained from the data shown in Fig. S1.
