二氧化铈八面体的水热合成与表征

摘要

本文选用硝酸铈和草酸利用水热合成方法合成出二氧化铈八面体.水热产物的形貌与物相可以通过改变反应温度和时间进行调控.基于实验结果,提出了形成二氧化铈八面体的自牺牲模板法机理.%Ceria octahedrons were synthesized via a one-step hydrothermal synthesis method using cerium nitrate and oxalic acid as the reagents.Morphology and phase evolution of the products can be controlled by adjusting the synthesis time and temperature.A self-sacrifice template mechanism is proposed for the formation of ceria octahedrons based on the experimental results.