Table 2. Drop Solution Enthalpies (ΔHds) in 3Na2O·4MoO3 at 800 °C and Formation Enthalpies (ΔH°f,ox) at 25 °C of MLi2Ti6O14 (M = 2Na, Sr, Ba, and Pb) Titanates.
sample | ΔHds (kJ/mol) | ΔH°f,ox (kJ/mol) |
---|---|---|
Na2Li2Ti6O14 | 502.41 ± 0.35(8) | –333.32 ± 4.91 |
BaLi2Ti6O14 | 506.75 ± 0.57(8) | –323.54 ± 3.44 |
SrLi2Ti6O14 | 498.16 ± 0.68(8) | –260.65 ± 3.15 |
PbLi2Ti6O14 | 508.46 ± 0.46(8) | –157.81 ± 2.54 |
Li2O | –77.21 ± 2.4423 | |
Na2O | –195.90 ± 4.2327 | |
TiO2 | 73.70 ± 0.39(6)28 | |
SrO | –127.48 ± 1.84a | |
BaO | –181.22 ± 2.32a | |
PbO | –14.34 ± 0.38 (6)a | |
CO2 | 37.40 |
This work. The value is the mean of the number of experiments indicated in parentheses; two standard deviations are given as errors.