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Small‐angle neutron scattering study of nanophase zirconia in a reverse micelle synthesis
Author(s) -
Li X.,
Loong C.K.,
Thiyagarajan P.,
Lager G.A.,
Miranda R.
Publication year - 2000
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889899012777
Subject(s) - micelle , small angle neutron scattering , microemulsion , materials science , neutron scattering , chemical engineering , salt (chemistry) , toluene , cubic zirconia , molar ratio , scattering , analytical chemistry (journal) , chemistry , chromatography , organic chemistry , pulmonary surfactant , aqueous solution , catalysis , optics , physics , ceramic , composite material , engineering
Nanophase zirconia particles are synthesized by mixing two reverse micelle solutions containing the precursor salt ZrOCl 2 and the base NH 4 OH. The primary reverse micelle solution consists of AOT, toluene and water. The reverse micelle structure of four solutions as a function of w (the molar ratio of [water]/[AOT]) is characterized by small‐angle neutron scattering at room temperature. With the addition of ZrOCl 2 and NH 4 OH into the water pools, the reverse micelle sizes decrease as compared to those in the D 2 O/AOT/C 6 D 5 CD 3 primary system. The mixed microemulsions contain reverse micelle sizes that fall between the values of the premixed solutions. All the reverse micelles exhibit uniform size and spherical shape. The effect of concentration of inorganic salt precursor in the water pools on the reverse micelle structure is also studied.