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An experimental study on the relationship between the physical properties of CTAB/hexanol/water reverse micelles and ZrO2-Y2O3 nanoparticles prepared
Alternative TitleJ. Colloid Interface Sci.
Fang, XL; Yang, CF
1999-04-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume212Issue:2Pages:242-251
AbstractBased on the studies of their physical properties such as aqueous solution uptake, electric conductivity, and microstructure, CTAB/hexanol/water reverse micelles (CTAB, cetyltrimethyl ammonium bromide) were used to prepare ZrO2-Y2O3 nanoparticles. The relationship between the micelle microstructure and size, morphology, and aggregate properties of particles prepared was also investigated. It has been found that with high CTAB concentration ([CTAB] > 0.8 mol/l), the reverse micelles can solubilize a sufficient amount of aqueous solution with high metallic ion concentration (similar to 1.0 mol/L), while the microstructure of the reverse micelles keeps unchanged, The most important factor affecting the size and shape of reverse micelles was found to be the water content w(0) (w(0), molar ratio of water to surfactant used). When both the CTAB concentration and the w(0) values are low, the diameters of reverse micelles are below 20 nm, and the ZrO2-Y2O3 particles prepared are also very small. However, the powders obtained were found to form a lot of aggregates after drying and calcination. High CTAB concentration, high w(0) value, and high metallic ion concentration in the aqueous phase for high powder productivity were found to be the suitable compositions of reverse micelles for preparing high-quality ZrO2-Y2O3 nanoparticles. Under these conditions, the reverse micelles are still spherical in shape even the reverse micellar system is nearly saturated with aqueous solutions. These reverse micelles were found to have a diameter of between 60 and 150 nm and the ZrO2-Y2O3 particles prepared therefrom range from 30 to 70 nm with spherical shape and not easy to form aggregates, (C) 1999 Academic Press.; Based on the studies of their physical properties such as aqueous solution uptake, electric conductivity, and microstructure, CTAB/hexanol/water reverse micelles (CTAB, cetyltrimethyl ammonium bromide) were used to prepare ZrO2-Y2O3 nanoparticles. The relationship between the micelle microstructure and size, morphology, and aggregate properties of particles prepared was also investigated. It has been found that with high CTAB concentration ([CTAB] > 0.8 mol/l), the reverse micelles can solubilize a sufficient amount of aqueous solution with high metallic ion concentration (similar to 1.0 mol/L), while the microstructure of the reverse micelles keeps unchanged, The most important factor affecting the size and shape of reverse micelles was found to be the water content w(0) (w(0), molar ratio of water to surfactant used). When both the CTAB concentration and the w(0) values are low, the diameters of reverse micelles are below 20 nm, and the ZrO2-Y2O3 particles prepared are also very small. However, the powders obtained were found to form a lot of aggregates after drying and calcination. High CTAB concentration, high w(0) value, and high metallic ion concentration in the aqueous phase for high powder productivity were found to be the suitable compositions of reverse micelles for preparing high-quality ZrO2-Y2O3 nanoparticles. Under these conditions, the reverse micelles are still spherical in shape even the reverse micellar system is nearly saturated with aqueous solutions. These reverse micelles were found to have a diameter of between 60 and 150 nm and the ZrO2-Y2O3 particles prepared therefrom range from 30 to 70 nm with spherical shape and not easy to form aggregates, (C) 1999 Academic Press.
KeywordReverse Micelles Nanoparticles Aggregate Ctab Zro2-y2o3
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
URL查看原文
Indexed BySCI
Language英语
WOS KeywordIN-OIL MICROEMULSIONS ; CATIONIC SURFACTANT ; W/O MICROEMULSION ; PHASE-DIAGRAM ; WATER-SYSTEM ; PARTICLES ; EQUILIBRIA ; PHOSPHATE ; ALCOHOL
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000079500500006
Citation statistics
Cited Times:38[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5927
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Chem Met, Young Sci Lab Separat Sci & Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Fang, XL,Yang, CF. An experimental study on the relationship between the physical properties of CTAB/hexanol/water reverse micelles and ZrO2-Y2O3 nanoparticles prepared[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,1999,212(2):242-251.
APA Fang, XL,&Yang, CF.(1999).An experimental study on the relationship between the physical properties of CTAB/hexanol/water reverse micelles and ZrO2-Y2O3 nanoparticles prepared.JOURNAL OF COLLOID AND INTERFACE SCIENCE,212(2),242-251.
MLA Fang, XL,et al."An experimental study on the relationship between the physical properties of CTAB/hexanol/water reverse micelles and ZrO2-Y2O3 nanoparticles prepared".JOURNAL OF COLLOID AND INTERFACE SCIENCE 212.2(1999):242-251.
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