A study on the oxidative coupling of methane over La2-xMgxTiO4 catalysts

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Ivanova, Yu^1 ; Petrov, R.^1 ; Arhipova, M.^1 ; Reshetnikov, S.^1 ; Isupova, L.^1

Boreskov Institute of Catalysis, SB RAS, 5 Lavrentieva Avenue, Novosibirsk

630090, Russia^1

关键词: Bet techniques;    Fixed catalyst bed;    Layered perovskite structure;    Mercury porosimetry;    Mixed solution;    Oxidative condensation;    Oxidative coupling of methane;    Quartz reactors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012026/pdf
DOI  :  10.1088/1757-899X/597/1/012026

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

La2-xMgxTiO5-δ samples with different content of Mg and La were synthesized by the precipitation from a mixed solution of Mg(NO3)2 and La(NO3)3 in the presence of TiO2 suspension. The samples were characterized using X-ray diffractometry, mercury porosimetry, and BET techniques. Specific surface area of the samples ranges from 0.1 to 4.17 m2/g, and pore volume, from 0.005 to 0.023 cm3/g. Activity and selectivity of the samples in the oxidative condensation of methane (OCM) were measured using a fixed catalyst bed flow quartz reactor. It was demonstrated that samples with x ≤ 0.6 showed the highest activity toward OCM reaction. This can be explained by a high content of the main active phase (La,Mg)2TiO5-δ with the layered perovskite structure and a sufficient specific surface area.