Structural and Electrochemical Properties of Lanthanum Silicate Apatites La₁₀Si_6−x−0.2Al_xZn_0.2O_27−δ for Solid Oxide Fuel Cells (SOFCs)

Figure 4

EDX spectra of La₁₀Si_5.6Al_0.2Zn_0.2O_26.7 (top) and La₁₀Si_5.4Al_0.4Zn_0.2O_26.6 (bottom) powders sintered at 1600°C for 8 hours in air.

(a)

(b)