Nanocrystalline cerium hydroxide (NCs-Ce(OH)4) is a intermediate product of CeO2, synthesized successfully using a novel and simple wet chemical rout at an ambient temperature for the preparation of NCs CeO2 powder and film on mass scale for various purposes. The synthesized NCs-Ce(OH)4 was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), thermo-gravimetric analysis (TGA), Fourier transform infrared (FTIR), UV-visible and photoluminescence (PL) spectroscopy. The average crystallite size of NCs-Ce(OH)4 has been estimated by the Scherrer equation to be 3–4 nm. The SEM examinations show that the surface texture was uniformly agglomerated and homogeneous. Thermal analysis suggests that cerium (IV) ion is in the tetra hydrated form. Absorption and luminescence spectroscopic studies have been examined for future application in the development of optical devices.

中文翻译：

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纳米结构Ce(OH)4的合成及光学性质

纳米晶氢氧化铈 (NCs-Ce(OH)4) 是 CeO2 的中间产物，在环境温度下使用新颖且简单的湿法化学路线成功合成，用于大规模制备用于各种用途的 NCs CeO2 粉末和薄膜。合成的 NCs-Ce(OH)4 使用 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、热重分析 (TGA)、傅里叶变换红外 (FTIR)、紫外可见光和光致发光 (PL) 进行表征光谱学。Scherrer 方程估计 NCs-Ce(OH)4 的平均晶粒尺寸为 3-4 nm。SEM 检查表明表面纹理均匀地附聚和均质。热分析表明铈 (IV) 离子处于四水合形式。