The effect of the precursor and surface modification by sulfate and phosphate groups on the properties of cerium oxide was studied. The obtained materials were characterized by infrared (IR) and Raman spectroscopy, X-ray powder diffraction, scanning electron microscopy (SEM), high resolution transmission electron microscopy (TEM), thermogravimetric analysis (TGA) with the gas phase composition analysis, Brunauer–Emmett–Teller (BET) method, and impedance spectroscopy. The significant fraction of Се³⁺ ions at the surface of cerium oxide particles obtained from Ce(NO₃)₃ promotes the formation of double sodium cerium sulfate and cerium phosphate upon treatment with solutions of sodium hydrogen sulfate and sodium dihydrogen phosphate, respectively. The modification of ceria surface by sulfate groups leads to a decrease in specific surface area and water content of the obtained materials, as well as to a significant decrease in their proton conductivity. CeO₂ samples prepared from cerium ammonium nitrate have a significantly smaller particle size and higher conductivity. Its value for cerium oxide modified with phosphate groups increases up to 3.5 × 10⁻⁴ S/cm at 65 °C. The effect of hydration degree as well as Ce³⁺ content on the cerium oxides properties is discussed.

研究了前驱体以及硫酸根和磷酸根表面改性对氧化铈性能的影响。所获得的材料通过红外（IR）和拉曼光谱，X射线粉末衍射，扫描电子显微镜（SEM），高分辨率透射电子显微镜（TEM），热重分析（TGA）和气相组成分析进行了表征，Brunauer– Emmett–Teller（BET）方法和阻抗谱。由Ce（NO ₃）₃获得的氧化铈颗粒表面的Се3 ⁺离子的比例很大分别用硫酸氢钠和磷酸二氢钠溶液处理可促进双硫酸铈钠和磷酸铈的形成。通过硫酸根基团对二氧化铈表面的改性导致所获得的材料的比表面积和水含量的降低，以及其质子传导率的显着降低。由硝酸铈铵制备的CeO ₂样品具有明显较小的粒径和较高的电导率。 在65°C下，其被磷酸酯基修饰的氧化铈的值增加至3.5×10 ^-4 S / cm。讨论了水合度以及Ce ³⁺含量对氧化铈性能的影响。