A Decrease in NiO-MgO Phase Through Its Solid Solution Equilibrium with Tetragonal (La_𝟏−𝑧Sr_𝑧)_𝟐Ni_𝟏−𝑦Mg_𝑦O_𝟒−𝛿: Effect on Catalytic Partial Oxidation of Methane

Table 1

Surface area, pore volume, and pore diameter of the solid reaction products from the oxide mixtures: 0.4 La₂O₃–0.2 SrO–(1−x)NiO–𝑥MgO.

Parameters*	𝑥=0	𝑥=0.1	𝑥=0.2	𝑥=0.3	𝑥=0.4	𝑥=0.5
𝑆BET (m^2/g)	8	9	10	12	14	17
𝑉𝑝 (cm^3/g)	0.07	0.09	0.09	0.09	0.13	0.09
𝐷ave (nm)	35	37	38	32	37	22

*The multipoint BET surface area (𝑆_BET), BJH desorption pore volume (𝑉_𝑝), and the average pore diameter (𝐷_ave) of the prepared catalyst precursors.