Abstract

Mesoporous CeO₂ has been prepared under hydrothermal conditions at 110–170°С in the presence of ionic and nonionic surfactants and characterized by SEM, low-temperature nitrogen adsorption–desorption, X-ray powder diffraction, and DTA–TG techniques. All synthesized samples had a specific surface area of up to 110 m²/g and a pore diameter of about 4 nm. It has been shown that the use of surfactants of various nature affects not only the final morphology of the oxide, but also its porous structure characteristics and chemical composition of its samples. It has been found that the use of ultrasound in the synthesis affects the specific surface area and average pore size of the samples.

中文翻译：

---

合成条件对中孔氧化铈结构特征的影响

摘要

在离子和非离子表面活性剂存在下，在水热条件下于110–170°С下制备了介孔CeO _2，并通过SEM，低温氮吸附-解吸，X射线粉末衍射和DTA-TG技术进行了表征。所有合成样品的比表面积均高达110 m ² / g，孔径约为4 nm。已经表明，使用各种性质的表面活性剂不仅影响氧化物的最终形态，而且影响其多孔结构特征和样品的化学组成。已经发现在合成中使用超声波会影响样品的比表面积和平均孔径。