Urea-Based Combustion Process for the Synthesis of Nanocrystalline Ni-La-Fe-O Catalysts

Table 1

Crystallite sizes of the different NiLa𝑥Fe2−𝑥O₄ catalysts calcined at 500°C.

Catalyst	𝑥=0.00	𝑥=0.50	𝑥=1.00	𝑥=1.50	𝑥=2.00
Crystallite size (nm)	9.75	6.26	13.62	18.39	14.29