Official Journal of the Japan Wood Research Society
Table 1 Mössbauer parameters at 298 K of iron-loaded charcoal samples
Sample | Type of split | IS (mm/s) | QS (mm/s) | H (T) | LW (mm/s) | Yield* (%) | Iron species |
|---|---|---|---|---|---|---|---|
Fe-C750-1 | Doublet | 0.337 (3) | 0.792 (4) | – | 0.64 (1) | 89 (1) | High-spin Fe3+ species |
Sextet | 0.17 (1) | 0.07 (2) | 20.80(8) | 0.31 (3) | 11 (1) | Fe3C | |
Fe-C800-1 | Doublet | 0.322 (3) | 0.798 (5) | – | 0.69 (1) | 79 (1) | High-spin Fe3+ species |
Sextet | 0.19 (1) | 0.02 (1) | 20.70(5) | 0.39 (2) | 21 (1) | Fe3C | |
Fe-C850-1 | Doublet | 0.56 (3) | 0.48 (4) | – | 0.53 (8) | 13 (1) | High-spin Fe3+ species |
Sextet-1 | 0.184 (5) | 0.030 (10) | 20.71 (3) | 0.32 (1) | 37 (1) | Fe3C | |
Sextet-2 | 0.07 (3) | −0.09 (7) | 33.0 (2) | 0.30 (10) | 5 (1) | α-Fe | |
Singlet | −0.100 (2) | – | – | 0.293 (6) | 45 (1) | γ-Fe | |
Fe-C850-2 | Doublet | 0.25 (1) | 0.96 (2) | – | 0.58 (2) | 9.4 (3) | High-spin Fe3+ species |
Sextet-1 | 0.188 (1) | 0.028 (2) | 20.63 (1) | 0.350 (2) | 69.2 (3) | Fe3C | |
Sextet-2 | −0.012 (4) | 0.033 (8) | 33.12 (2) | 0.27 (1) | 11.2 (3) | α-Fe | |
Singlet | −0.098 (6) | – | – | 0.271 (6) | 10.2 (2) | γ-Fe | |
Fe-C900-1 | Sextet-1 | 0.187 (2) | 0.034 (5) | 20.62 (2) | 0.378 (6) | 48.3 (3) | Fe3C |
Sextet-2 | −0.015 (4) | 0.04 (2) | 33.27 (7) | 0.21 (1) | 4.8 (5) | α-Fe | |
Singlet | −0.091 (1) | – | – | 0.346 (3) | 46.9 (3) | γ-Fe |