Zirconyl-containing microspheric silica gel surfaces

Autor:	K. A. Akhundzhanov, K. S. Lanina, Nadezhda V. Kovaleva, T. A. Strepetova, E. V. Vlasenko, B. D. Kabulov, F. U. Yunusov, S. N. Lanin
Rok vydání:	2010
Předmět:	Zirconium Materials science Silica gel Chemical polarity Intermolecular force Composite number Analytical chemistry chemistry.chemical_element Surface energy chemistry.chemical_compound Adsorption chemistry Chemical engineering Physical and Theoretical Chemistry Dispersion (chemistry)
Zdroj:	Russian Journal of Physical Chemistry A. 85:102-107
ISSN:	1531-863X 0036-0244
DOI:	10.1134/s003602441101016x
Popis:	The adsorption properties of two samples of zirconyl-containing silica gels derived from zirconium oxychloride, polyetoxysiloxane oligomer 3% ZrOCl2/SiO2 (composite 1) and tetraetoxysilane 5% ZrOCl2/SiO2 (composite 2) were investigated by gas chromatography at low surface coverages. n-Alkanes and n-alkenes (C6–C8), C6H6 were used as test adsorbates, along with polar compounds whose molecules had different donor-acceptor interaction abilities. The dispersion and specific (electron-donor and electronacceptor) components of the energy of intermolecular interactions for the studied systems were determined from the experimental data on chromatographic retention. It was shown that composite 2 had a higher dispersion potential and higher surface energy characteristics of the surface’s electron-donating and electronacceptor centers, as compared to composite 1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::33c991f739fd98ab3ff476b851c6ef4c https://doi.org/10.1134/s003602441101016x Zobrazit plný text záznamu Full text from SpringerLink