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以硝酸铈与柠檬酸为主要原料,在65℃的恒温槽中反应24 h,在120℃干燥箱中干燥2 h,在500℃的马弗炉中焙烧2 h,制备成氧化铈粉末。通过化学合成法制备了聚苯胺/氧化铈复合粒子。用激光粒度仪表征了氧化铈粉体与聚苯胺/氧化铈复合粒子的体积百分比与粒径的正态分布,用SEM表征了氧化铈粉体与聚苯胺/氧化铈复合粒子的形貌。结果发现,氧化铈粉体为不规则颗粒,其粒径呈正态分布规律;聚苯胺/氧化铈复合粒子的形貌不规则,体积分数与粒径表现为多个分布峰。
The cerium nitrate and citric acid were used as the main raw materials and reacted in a thermostat at 65 ℃ for 24 h, then dried in a 120 ℃ oven for 2 h and calcined in a muffle furnace at 500 ℃ for 2 h to prepare a cerium oxide powder. Polyaniline / cerium oxide composite particles were prepared by chemical synthesis. The particle size distribution and normal distribution of cerium oxide and polyaniline / cerium oxide composite particles were characterized by laser particle size analyzer. The morphology of cerium oxide powder and polyaniline / cerium oxide composite particles was characterized by SEM. The results showed that the cerium oxide powder was irregular and its particle size was normal distribution. The polyaniline / cerium oxide composite particles had irregular shape, and the volume fraction and particle size showed multiple distribution peaks.