A novel synthesis route and phase transformation of Zno nanoparticles modified by DDAB

An improved reverse-micelle preparation method, which is derived from the traditional reversed micelles process was used to synthesize ZnO nanoparticles capped by didodecyldimethyl-ammonium bromide. The processing is simple and efficient, and the ZnO nanoparticles are immediately formed in the micro...

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Bibliographic Details
Published in:Journal of crystal growth 2003-05, Vol.252 (1), p.226-229
Main Authors: Liang, Ji Yun, Guo, Lin, Xu, Hui Bin, Jing, Liu, Dong, Li Xiao, Hua, Wu Zhong, Yu, Wu Zi, Weber, Jörg
Format: Article
Language:English
Subjects:
A1. Phase transformation
B1. Didodecyldimethyl-ammonium bromide (DDAB)
B1. ZnO nanoparticles
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Nanoscale materials and structures: fabrication and characterization
Physics
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Summary:An improved reverse-micelle preparation method, which is derived from the traditional reversed micelles process was used to synthesize ZnO nanoparticles capped by didodecyldimethyl-ammonium bromide. The processing is simple and efficient, and the ZnO nanoparticles are immediately formed in the microreactors. In situ high-pressure energy-dispersive X-ray diffraction was carried out on the structure phase transition of the ZnO nanoparticles. The results show the transformation pressure increases with the decrease of the size of the ZnO nanoparticles. Based on the previous results, we predict that particle size and surface microstructure are competing processes for the transformation pressure.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(02)02522-8