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Elemental compositions and chemical speciations of the two catalysts of interest.
| Sample | Peak | C species[a] [%] | Peak | Peak | N species [%] | Peak | Fe species[b] [%] | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C 1s [%] | Cgraphitic | C−C, C* | CxOy | O 1s [%] | N 1s [%] | Npyr. | N−Fe | N−H | N gr. | Fe 2p [%] | Fe−N | FexOy | |
| Fe‐BP(N) | 81.9 | 8.1 | 46.7 | 44.6 | 11 | 5.8 | 62.2 | 26.7 | 10.7 | 0.4 | 1.3 | 8.2 | 91.8 |
| Fe‐CNT(N) | 79.1 | 9.8 | 24.8 | 61.9 | 9.3 | 10.0 | 47.4 | 28.3 | 18.0 | 6.2 | 1.5 | 6.8 | 93.2 |
