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

Figure 8

TEM examination of the two representative used catalysts after 50 h POM at 850°C (with reference to Figure 7): (a) 𝑥=0, (b) 𝑥=0.2.

(a)

(b)