V 86 Volkov, V. L. Nanocomposites with the Layered Structure of V2O5 • nH2O Xerogel / V. L. Volkov, G. S. Zakharova, L. A. Perelyaeva // Russian Journal of Inorganic Chemistry. - 2006. - vol. 51, № 1. - P41-45 : il. - Bibliogr. : p. 45 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): КСЕРОГЕЛИ -- НАНОКОМПОЗИТЫ -- СТРУКТУРА СЛОИСТАЯ -- ВАНАДАТЫ Аннотация: New layered nanocomposites of V2O5 • nH2O xerogels with poly(vinyl alcohol) (PVA), pyrocatechol(PC), and hydroquinone (HQ) were synthesized with the compositions (C2H3)0.32V2O4.90·nH2O,(C6H4)xV2O4.60·nH2O, and(C6H4)0.17V2OV2O.94·nH2O and the interlayer distances d001= 11.73, 12.85, and 15.28±0.05 Å, respectively. IR and Raman spectroscopy was used to analyze which structural changes occur in the V–O layers of the xerogel upon composite formation. X-ray photoelectron spectroscopy showed V4+ and V5+ ions in the layers with binding energies lower than in V2O5 · nH2O. The electrical conductivity of the nanofilms and the thermal properties of the nanopowders were studied Полный текст |