Table 1.
Physicochemical properties of the (doped) rare earth oxide particles measured in 100 mg/L suspensions in deionized water (modified from Joonas et al. [27]).
| Compound | Specific Surface Area (SSA), m2/g a | Primary Size, nm (BET) a | Hydro-Dynamic Size (nm) in DI (DLS) b | ζ-Potential (mV) in DI b | pH in DI c | pH in 2% NaCl c |
|---|---|---|---|---|---|---|
| Ce0.9Gd0.1O2 | 31.1 | 27 | 280 | −16.6 | 6.3 | 6.3 |
| LaFeO3 | 72 | 126 | 177 | 16.2 | 6.5 | 6.4 |
| Gd0.97CoO3 | 34 | 230 | 166 | 18.8 | 6.3 | 6.3 |
| LaCoO3 | 14 | 590 | 285 | −17.5 | 6.7 | 6.4 |
| (La0.5Sr0.5)0.99MnO3 | 7 | 137 | 194 | −1.8 | 7.3 | 6.9 |
| CeO2 | 22 | 38 | 172 | 8.5 | 6.5 | 6.5 |
| Ce0.8Pr0.2O2 | 361 | 23 | 147 | 16.6 | 6.3 | 6.3 |
| (La0.6Sr0.4)0.95CoO3 | 15 | 65 | 160 | 22.7 | 7.4 | 9.5 |
| La2NiO4 | 3 | 284 | 266 | −6.6 | 8.6 | 8.6 |
a the Brunauer–Emmett–Teller (BET) method was used for analysis of the specific surface area (SSA) and for calculation of the primary particle size; b after centrifugation at 160× g for 10 min to remove large agglomerates DI- deionized water; a,b data taken from Joonas et al. [27]; c measured in the suspension of 1000 mg/L.