Size control of monodisperse nonporous silica particles by seed particle growth

查看全文 作　　者：Beibei [1]Zhao;Caihua [1,2]Tian;Yan [1]Zhang;Tao [2]Tang;Fengyun [1]Wang

机构地区：[1]Institute of Industrial Chemistry, Nanjing University of Science & Technology, Nanjing 210094, China;[2]Dalian Elite Analytical Instrument Co. Ltd., Dalian 116011, China

出　　处：《Particuology》索引2011年第9卷第3期,共4页

摘　　要：Monodisperse nonporous silica particles were prepared by sol-precipitation via seed particle growth method,and the particle size,which varied from 1.0 to 4.7 m,was strictly controlled in our experiment. The formation of secondary particles,which resulted in a multimodal distribution of particle size,was suppressed by changing tetraethoxysilane(TEOS) concentration and reaction temperature. Furthermore,the effect of adding small amounts of electrolyte to the hydrolysis mixture was examined. 关键词：单分散二氧化硅尺寸控制颗粒生长二氧化硅颗粒种子次级粒子颗粒大小分布颗粒制备

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Size control of monodisperse nonporous silica particles by seed particle growth

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