Sample | C content (at%) | O content (at%) | N content (at%) | Graphitic N % | Pyridinic N % | Pyrrolic N % | Ratio (Pyridinic/Gra + Pyrrolic) |
PCNF | 89.86 | 7.79 | 2.35 | 26.09 | 19.54 | 54.36 | 0.24 |
N-PCNF (PI-30%) | 87.24 | 8.46 | 3.77 | 24.15 | 43.89 | 31.96 | 0.78 |
N-PCNF (PI-50%) | 88.8 | 8.5 | 2.5 | 32.64 | 40.02 | 32.64 | 0.61 |
N-PCNF (PI-100%) | 87.8 | 9.8 | 2.4 | 48.07 | 29.33 | 22.65 | 0.41 |