Sodium zirconium phosphate [NZP] materials have been systematically classified and their sodium ionic conductivities and thermal activation energies given at 90 and 300°C. NaZr2P3O12 has a low sodium ionic conductivity, which by some substitutions can be raised up to 6 orders of magnitude above the unsubstituted compound. The corresponding thermal activation energies range from 0.2 to 0.8 eV. Na1+xZr2SixP3-xO12 with 2 ≤ x ≤ 2.4 already has a high sodium conductivity which substitutions cannot significantly increase. The corresponding thermal activation energies show a tendency to decrease with higher temperature. The highest ionic conductivity in any NZP material is found for x = 2.2 in this system. Substitutions only decrease the sodium ionic conductivity.
|Original language||English (US)|
|Number of pages||13|
|Journal||British Ceramic Transactions|
|State||Published - 1994|
All Science Journal Classification (ASJC) codes
- Ceramics and Composites