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Official Journal of the Japan Wood Research Society

Table 2 CT-dependence of Mössbauer parameters at 298 K of iron-loaded charcoal samples

From: Mössbauer and Raman characterization of iron-loaded woody charcoal: effects of Fe3+-dispersion in wood on reduction of Fe3+ and graphitization in carbonization

Sample

Type of split

IS (mm/s)

QS (mm/s)

H (T)

LW (mm/s)

Yield (%)

Iron species

Fe3-300-1

Doublet

0.419 (4)

0.971 (7)

0.55 (1)

100

High-spin Fe3+

Fe3-600-1

Doublet

0.340 (3)

0.893 (4)

0.718 (7)

100

High-spin Fe3+

Fe3-650-1

Doublet

0.348 (2)

0.929 (4)

0.699 (7)

100

High-spin Fe3+

Fe3-700-1

Sextet-1

− 0.003 (5)

0 .02 (1)

33.00 (3)

0.28 (1)

22 (1)

α-Fe

Singlet

− 0.09 (2)

0.28 (4)

3 (1)

γ-Fe

Sextet-2

0.185 (3)

0.032 (7)

20.70 (3)

0.36 (1)

42 (1)

Fe3C

Doublet

0.34 (1)

0.89 (2)

0.86 (4)

33 (1)

High-spin Fe3+

Fe3-750-1

Sextet-1

0.001 (3)

− 0.002 (6)

33.06 (2)

0.334 (8)

34 (1)

α-Fe

Singlet-1

− 0.095 (1)

0.321 (7)

30 (1)

γ-Fe

Sextet-2

0.17 (1)

0.05 (2)

20.54 (8)

0.35 (3)

11 (1)

Fe3C

Singlet-2

0.17 (3)

1.47 (7)

25 (1)

High-spin Fe3+

Fe3-800-1

Sextet-1

0.002 (4)

− 0.008 (7)

33.12 (2)

0.339 (9)

18.8 (4)

α-Fe

Singlet-1

− 0.098 (2)

0.400 (6)

20.0 (3)

γ-Fe

Sextet-2

0.188 (1)

0.026 (3)

20.67 (1)

0.379 (4)

54.7 (4)

Fe3C

Singlet-2

0.61 (2)

0.90 (7)

6.5 (5)

High-spin Fe3+

Fe3-850-1

Sextet-1

0.005 (4)

0.010 (9)

33.07 (3)

0.35 (1)

35 (1)

α-Fe

Singlet-1

− 0.099 (5)

0.41 (3)

23 (3)

γ-Fe

Sextet-2

0.187 (6)

0.02 (1)

20.80 (4)

0.37 (2)

28 (1)

Fe3C

Singlet-2

0.22 (8)

0.99 (8)

14 (4)

High-spin Fe3+

  1. CT carbonization temperature, IS isomer shift, QS quadrupole splitting, H internal magnetic field, LW line width