X-ray diffraction study of mesophase bitemplate-containing silicas

Autor:	N. A. Yaroshenko, E. I. Oranskaya
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Diffraction Aqueous solution Inorganic chemistry Halide Salt (chemistry) Mesophase General Chemistry Condensed Matter Physics Crystallography chemistry Solubilization X-ray crystallography General Materials Science Counterion
Zdroj:	Crystallography Reports. 53:881-887
ISSN:	1562-689X 1063-7745
Popis:	The effect of the composition of a bitemplate (solubilization) mixture on the formation of a spatially organized structure of mesophase siliceous systems has been investigated by X-ray diffraction. Alkylpyridinium halides (C n PyHal with n = 8−16 (counterion Cl) and 18 (counterion Br)) were used a solubilizator, and monoethanolamides (EAC m ) of saturated n-aliphatic acids (m = 10−16) and trialkylphosphine oxides (H2e + 1C e )3PO, where e = 8, 10, or 12, were used as solubilizates. Differences in the mesophase structure of template-containing silicas synthesized in aqueous and aqueous salt (NaCl) solutions have been revealed. It is shown that the type and degree of ordering of the silica mesophase structure depends on the nature, spatial organization, and the solubilizator and solubilizate concentrations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::469d357b66feb40dcd954a9c0d5dd6fa https://doi.org/10.1134/s1063774508050246 Zobrazit plný text záznamu Plný text ve formátu PDF