Figure 7
From: Two Sprayer CVD Synthesis of Nitrogen-doped Carbon Sponge-type Nanomaterials
X-ray photoelectron spectroscopy (XPS) analysis results for N-CSTNs. (a) The C1s line scan shows a sp2-hybridized C signal and a broad shoulder containing a signal coming from oxygenated carbon groups and C−O groups. (b) The N1s line scan exhibits a broad N signal, which could be composed by quaternary N (401.2–402.2 eV), pyrrolic N (399.8–401.2 eV), and pyridinic N (398.1–399.8 eV). (c) The O1s line scans show the presence of an ether C-O bond.
