Figure 1
From: Graphene nanoplatelets as nanofillers in mesoporous silicon oxycarbide polymer derived ceramics
Structural evolution from polymer to ceramic. (a) Raman spectra of the as-received GNP and the GNP heat-treated at 1500 °C in Ar atmosphere. (b) Fourier Transform Infrared Spectroscopy spectra of Si-O-C after pyrolysis at 1000 °C of the 3 wt.% GNP dispersed polymeric mixture and the crosslinked GNP dispersed polymeric mixture. In the inset, the digital photograph of the pyrolyzed sample is shown and the pores can be seen. (c) XPS spectrum of the 3 wt.% GNP dispersed Si-O-C pyrolyzed at 1000 °C. High-resolution XPS spectrum of the pyrolyzed samples in the (d) C-1s region, (e) Si-2p region and (f) O-1s region. Deconvoluted peaks show the various bonds existing in the Si-O-C ceramic.
