Research Article
Structural and Electrochemical Properties of Lanthanum Silicate Apatites La10Si6−x−0.2AlxZn0.2O27−δ for Solid Oxide Fuel Cells (SOFCs)
Table 2
Total conductivity of different compositions reported in this work and in the literature.
| | Sample compositions | 500°C (Scm−1) | 600°C (Scm−1) | 700°C (Scm−1) | 800°C (Scm−1) | Ref. |
| | La10Si5.4Al0.4Zn0.2O26.6 | 1.35 × 10−4 | 5.67 × 10−4 | 1.38 × 10−3 | 2.08 × 10−3 | This work | | La10Si5.6Al0.2Zn0.2O26.7 | 1.61 × 10−4 | 7.23 × 10−4 | 1.76 × 10−3 | 3.24 × 10−3 | This work | | La9.67Si6O26.5 | 0.40 × 10−3 | — | — | 7.10 × 10−3 | [41] | | La9.533(Si5.4Al0.6)O26 | 0.60 × 10−3 | — | — | 7.80 × 10−3 | [41] | | La9.8Si5.7Mg0.3O26.4 | — | — | — | 7.40 × 10−2 | [45] | | La10Si5.8Mg0.2O26.8 | — | — | — | 8.8 × 10−2 | [45] | | La9BaSi6O26.5 | — | — | — | 11.4 × 10−3 | [43] | | La9SrSi6O26.5 | — | — | — | 8.7 × 10−3 | [43] | | La9.67Si5AlO26 | — | — | — | 7.9 × 10−3 | [65] |
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