P 78 Podval'naya, N. V. Ion-Selective Properties of Nanostructured Alkali-Metal-Doped Vanadium Oxide / N. V. Podval'naya, Yu. A. Bakhteeva // Inorganic Materials. - 2010. - Vol. 46, № 1. - P. 47-50 : il. - Bibliogr. : p. 50 (11 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ИОНО-СЕЛЕКТИВНЫЕ СВОЙСТВА -- ОКСИД ВАНАДИЯ -- ЩЕЛОЧНЫЕ МЕТАЛЛЫ Аннотация: We have studied thin film electrodes based on nanoparticulate vanadium oxide doped with alkali- metal cations. The hydrogen function of the electrodes manifests itself in the pH range 2–5, with a slope of 55, 54, and 54 ± 2 mV/pH for MxV2O5 - nH2O with M = Li, Na, and K, respectively. Their sensitivity range is 10–4 to 10–1 mol/l. The electrode potential as a function of concentration follows the Nernst equation with a slope of 55, 55, and 57 ± 2 mV/pC for M = Li, Na, and K, respectively. The Li+, Na+, K+, Mg2+, Ca2+, Sr2+, and Ba2+ selectivity coefficients of the electrodes are determined Полный текст |