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Preparation of core-shell type particles by injection method
Li, Q. Y.; Chen, Y. F.; Nakamura, H.; Dong, P.
2003
Conference Name7th International Symposium on Functionally Grade Materials (FGM2002)
Source PublicationFUNCTIONALLY GRADED MATERIALS VII 丛书: MATERIALS SCIENCE FORUM
Pages143-146
Conference DateOCT 15-18, 2002
Conference PlaceBEIJING, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractSiO2@ Al(OH)(3) core-shell type particles were prepared by injecting Al(NO3)(3) solution into NaHCO3 solution in which the SiO2 core particles were dispersed. The monodisperse SiO2 core particles with a diameter of around 300 nm were prepared by a seeding technique on the basis of hydrolyzing tetraethylorthosilicate (TEOS) in aqueous ethanol solutions with ammonia as catalyst. The shell with a thickness of 33 nm could be deposited on SiO2 spheres without free Al(OH)(3) particles observable under proper experimental conditions such as 0.5M NaHCO3, 20g/L SiO2, 0.15 M Al(NO3)(3) and 0.1 ml/min as injection speed.
KeywordCore-shell Type Particles Monodisperse Silica Al(Oh)(3) Coating Layer Injection Method Silicon-nitride Alumina Hydrate Coated Powders Composites Layers
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/5333
Collection多相复杂系统国家重点实验室
Recommended Citation
GB/T 7714
Li, Q. Y.,Chen, Y. F.,Nakamura, H.,et al. Preparation of core-shell type particles by injection method[C]:Trans Tech Publications Ltd,2003:143-146.
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