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燃烧剂对燃烧法合成CeO2纳米粉体的影响
Effect of fuels on the nanosized ceria powder by combustion method.
【摘要】 通过燃料-硝酸盐低温燃烧法合成了纳米二氧化铈粉体.考察了新型燃烧剂甘油和甘露醇对二氧化铈纳米粉体的影响,通过TG-DTA对凝胶的分解特性进行了分析,并利用XRD、氮气吸脱附和SEM对粉体的性能进行了表征.结果表明:使用甘露醇制备的CeO2晶粒较小(10.1 nm),比表面积较大(87.1 m2.g-1).
【Abstract】 Nanosized CeO2 powder was synthesized by fuel-nitrate low-temperature combustion method.The effect of novel fuels(glycerol and manninol) was studied.The gel decomposition was analyzed by TG-DTA,and the properties of the powders were characterized by XRD,nitrogen adsorption/desorption and SEM.The results showed that nanosized CeO2 powder prepared with manninol had smaller crystalline size(10.1 nm) and higher BET area(87.1 m2·g-1).
【基金】 国家自然科学基金资助项目(20703035);浙江省应用化学重点实验室运行及研究资助项目(2005E10016)
- 【文献出处】 浙江大学学报(理学版) ,Journal of Zhejiang University(Science Edition) , 编辑部邮箱 ,2009年03期
- 【分类号】O614.332
- 【被引频次】16
- 【下载频次】269