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XPS deconvolution results and RAMAN ID/IG ratio for rGOm-3 and NrGOm-4 samples.
| Sample | O (at %) | N (at %) | O 1s | N1s | ID/IG | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C–O | C=O | COOH | H2O | Pyr | Pyrr | Quat | Nox | ||||
| rGO325-3 | 7.0 | - | 57.0 | 21.1 | 15.7 | 6.2 | - | - | - | - | 0.63 |
| rGO100-3 | 7.0 | - | 63.1 | 17.0 | 13.7 | 6.3 | - | - | - | - | 0.39 |
| rGO10-3 | 6.8 | - | 54.6 | 20.7 | 18.7 | 6.0 | - | - | - | - | 0.53 |
| NrGO325-4 | 4.1 | 3.4 | 54.7 | 23.5 | 17.6 | 4.2 | 40.0 | 21.7 | 22.7 | 15.6 | 0.75 |
| NrGO100-4 | 3.6 | 3.3 | 54.2 | 21.2 | 18.9 | 5.7 | 39.5 | 21.7 | 23.6 | 15.3 | 0.63 |
| NrGO10-4 | 3.6 | 3.2 | 56.2 | 17.4 | 18.7 | 7.6 | 38.5 | 20.5 | 28.5 | 12.4 | 0.58 |
