Lanthanum-Based Perovskite-Type Oxides La_1−xCe_xBO₃ (B = Mn and Co) as Catalysts: Synthesis and Characterization

Figure 2

XRD patterns of the La_1−xCe_xCoO₃ (a) and La_1−xCe_xMnO₃ (b) perovskites ( = 0, 0.2, and 0.4). Additional CeO₂ phases were revealed for cerium substituted perovskites. The evolution of the CeO₂ peaks with increase in substitution is clearly seen.

(a)

(b)