Research Article
Synthesis of Na-Doped Lithium Metatitanate and Its Absorption for Carbon Dioxide
Table 1
Relative permeability during absorption process at 500~600°C.
| | Item | Pure Li2TiO3 | Na-doped Li2TiO3 |
| | TiO2 layer state | Solid | Solid | | O2− permeability | ~10−12 cm2/m | ~10−12 cm2/m | | Li2CO3 layer state | Solid | Liquid | | CO2 permeability | ~10−14 cm2/m | ~10−8 cm2/m | | Rate-determining step | CO2 diffusion | O2− diffusion |
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