Monodisperse ceria–zirconia nanoparticles have attracted much attention as potential high-performance catalysts. Acidic aqueous solutions are generally used for peptizing aggregated precipitates during the fabrication of disperse nanoparticles. However, the peptization process requires multiple hours of aging, which significantly decreases the production efficiency. Hence, various researchers have attempted to eliminate this stage altogether by performing a coprecipitation process under ambient conditions using common salts as the starting materials. In this work, we report a continuous and direct technique for the fabrication of monodisperse composite oxide nanoparticles via coprecipitation inside a novel high-shear agitation reactor without aging. Using this method, monodisperse ceria–zirconia–yttria composite oxide nanoparticles with diameters of 3 nm were successfully synthesized.

中文翻译：

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使用新型高剪切搅拌反应器连续制备单分散二氧化铈-氧化锆-氧化钇复合氧化物纳米粒子

单分散二氧化铈-氧化锆纳米粒子作为潜在的高性能催化剂已引起了广泛的关注。酸性水溶液通常用于在分散纳米粒子的制造过程中对聚集的沉淀进行胶溶。但是，胶溶过程需要多个小时的老化时间，这会大大降低生产效率。因此，各种研究人员试图通过在环境条件下使用普通盐作为起始原料进行共沉淀过程来完全消除该阶段。在这项工作中，我们报告了一种通过直接沉淀在新型高剪切搅拌反应器内不老化而制备单分散复合氧化物纳米颗粒的连续和直接技术。使用这种方法