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| Sample | Total N (at%) | Pyridinic-N (at%) | Pyrrolic-N (at%) | Graphitic-N (at%) | Pyrrolic-N-oxidized (at%) | Fe–N (at%) |
|---|---|---|---|---|---|---|
| Fe/N/C-800 | 3.12 (100%) | 0.64 (20.56%) | 0.70 (22.47%) | 0.78 (24.93%) | 0.85 (27.15%) | 0.15 (4.89%) |
| Fe/N/C-900 | 2.08 (100%) | 0.34 (16.53%) | 0.40 (19.17%) | 0.59 (28.49%) | 0.56 (26.94%) | 0.18 (8.87%) |
| Fe/N/C-1000 | 0.82 (100%) | 0.10 (12.78%) | 0.19 (23.37%) | 0.23 (28.29%) | 0.22 (26.74%) | 0.07 (8.82%) |
