It was found that the diffusivity, as a function of temperature, could be described by:
log [D (cm2/s)] = -1.35 - 2923/T(K)
The associated activation energy was 0.6eV. The corresponding diffusivity at 298K was 8.0 x 10-12cm2/s. V.N.Chebotin, E.A.Vasilkovskaya: Elektrokhimiya, 1981, 17[12], 1910-2
Table 191
Diffusivity of I in Ag4RbI5
Temperature (C) | D (cm2/s) |
171 | 7.50 x 10-13 |
174 | 7.10 x 10-13 |
207.5 | 5.14 x 10-12 |
211.5 | 4.57 x 10-12 |
213 | 6.90 x 10-12 |
217 | 5.41 x 10-12 |
228.5 | 1.56 x 10-11 |