ars.els-cdn.com · web viewfig.s4 c1s peak xps spectra of rgo-120 (a), rgo-140 (b) and rgo-160 (c)....
Post on 26-Feb-2021
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Supplementary Information
Chemical reduction dependent dielectric properties and
dielectric loss mechanism of reduced graphene oxide
Fig. S1 The SEM of (a) ultrasonic treated GO; (b) untreated rGO-90; (c) ultrasonic
treated rGO-90 and (d) the red square area in (c) in larger magnification.
Fig.S2 The TEM images of rGO-60.
Fig.S3 XRD (a) and Raman (b) patterns of rGO-120, rGO-140 and rGO-160.
Fig.S4 C1s peak XPS spectra of rGO-120 (a), rGO-140 (b) and rGO-160 (c). The
peaks 1, 2, 3 and 4 correspond to C=C/C-C in aromatic, C-O (epoxy and
hydroxyl), C=O (carbonyl) and O-C=O (carboxyl) groups, respectively
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