Vapour phase oxidation of benzyl alcohol on A₂BO₄ type perovskite related oxide

Abstract

The substitution of strontium at lanthanum site in the sublattice of La₂CuO₄results in the formation of Cu³⁺ species and formation of defects in the oxygen sublattice. As the strontium content increases the oxygen non-stoichiometry increases, whereas Cu³⁺ content attains maximum at x = 0.3. As the oxygen non-s toichiometry (δ) increases, the selectivity towards toluene increases, thus showing that formation of toluene depends on the oxygen non- stoichiometry. When the reaction is carried out in nitrogen atmosphere the LaCuO₄ system shows good selectivity towards toluene indicating the dependence of toluene selectivity on the atmosphere in which the reaction is carried out.