Both Bi- and Ce-based CeBi mixed oxides were prepared by a modified sol-gel process from their precursor salts. The mixed as well as the parent oxides were characterized by X-ray diffractometry, Raman, XPS, UV–DRS and X-ray photoelectron spectroscopies, ICP–OES method, scanning and transmission electron microscopies as well as BET surface area, CO₂- and NH₃-temperature-programmed desorption measurements. After characterizing the morphology, the acid-base properties, the oxidation states of the cationic components and the porosity of these structures, their catalytic activities were probed in the Koevenagel condensation of benzaldehyde and diethyl malonate and the toluene oxidation to benzaldehyde reactions. Based on the catalytic activities of the oxides in the individual reactions, a catalyst mixture from the Bi- and Ce-based mixed oxides was used successfully in the toluene to benzaldehyde oxidation and benzaldehyde to benzylidene malonate Knoevenagel condensation domino reaction under environmentally benign conditions.

基于Bi和Ce的CeBi混合氧化物均由前体盐通过改进的溶胶-凝胶法制备。通过X射线衍射，拉曼光谱，XPS，UV-DRS和X射线光电子能谱，ICP-OES方法，扫描和透射电子显微镜以及BET表面积，CO _2-表征了混合氧化物和母体氧化物。和NH ₃-温度编程的脱附测量。在表征了形态，酸碱性质，阳离子组分的氧化态和这些结构的孔隙度之后，在苯甲醛和丙二酸二乙酯的Koevenagel缩合反应以及甲苯氧化为苯甲醛反应中探究了它们的催化活性。基于各个反应中氧化物的催化活性，在环境良好的条件下，将Bi和Ce基混合氧化物的催化剂混合物成功用于甲苯到苯甲醛的氧化以及苯甲醛到亚苄基丙二酸酯的Knoevenagel缩聚多米诺反应中。