The effect of the substitution of copper ions by titanium ions in LaCu_xTi_1-xO₃ (x = 0.4-0.8) mixed oxide on physicochemical and catalytic properties in syngas conversion was studied. The activation and catalytic testing were accompanied by reduction of part of copper ions and destruction of the perovskite structure leading to the removal of titanium and copper cations. An increase in the titanium content leads to a decrease in the proportion of reduced copper with the preservation of the defective perovskite-like oxide substrate. The application of KIT-6 silica for increasing the surface area essentially enhanced catalytic efficiency of the system. The main product of syngas conversion was methanol; its formation selectivity on the synthesized mixed oxides is comparable to the selectivity on conventional CuZnAl oxide catalyst. With increasing copper content in the samples, the selectivity for higher alcohols increases and contribution of water-gas shift reaction to the total CO conversion rate grows.

LaCu _x Ti _1-x O _3中钛离子替代铜离子的作用研究了（x = 0.4-0.8）混合氧化物对合成气转化的理化和催化性能的影响。活化和催化测试伴随着部分铜离子的减少和钙钛矿结构的破坏，导致钛和铜阳离子的去除。钛含量的增加导致还原铜的比例减少，同时保留了有缺陷的钙钛矿状氧化物基质。KIT-6二氧化硅用于增加表面积的应用实质上提高了系统的催化效率。合成气转化的主要产物是甲醇。其在合成混合氧化物上的形成选择性可与常规CuZnAl氧化物催化剂上的形成选择性相媲美。随着样品中铜含量的增加，