Table 2 Elemental composition and distribution of the type of nitrogen-containing groups on the surface of GO-N and GO-OOH-N samples
From: Carboxyl-Assisted Synthesis of Nitrogen-Doped Graphene Sheets for Supercapacitor Applications
Sample | C (at. % ) | N (at. % ) | N/C (%) | N distribution (at. % ) | |||
|---|---|---|---|---|---|---|---|
N-6 | N-5 | N-X | Absorbed Nitrogen | ||||
(398.7–399.1 eV) | (400–400.6 eV) | (402.7–403.2 eV) | (405.0–406.1 eV) | ||||
GO-N | 83.4 | 6.8 | 8.2 | 2.3 | 3.4 | 0.9 | 0.2 |
GO-OOH-N | 79.1 | 8.0 | 10.0 | 3.1 | 3.9 | 0.6 | 0.4 |
GO-N-180 | 84.7 | 6.9 | 8.1 | 3.2 | 2.4 | 0.8 | 0.5 |