V 86 Volkov, V. L. V3O7 . H2O Oxide Nanostructures: Synthesis and Study / V. L. Volkov, G. S. Zakharova // Russian Journal of Inorganic Chemistry. - 2009. - Vol. 54, № 11. - P1704-1707 : il. - Bibliogr. : p. 1707 (14 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ОКСИД ВАНАДИЯ -- НАНОСТРУКТУРЫ Аннотация: Nanorods of orthorhombic V3O7· H2O with the parameters a= 16.805 Å,b= 9.428 Å, and c = 3.660 Å are prepared under hydrothermal conditions (T= 180–190°C,τ= 30–40 h) from the V2O5·nH2O/ H2C2O4·2H2O composite. The particle diameter is 40–70 nm, and the length is several micrometers. The IR spectra, electric conductivity, and thermal properties of the nanorod powder are studied. In air V3O7· H2O begins to decompose at temperatures above 150°C, and at 350°C nanobelts V2O5 40–100 nm wide and 40 μm long are formed. A mechanism of nanostructure formation is suggested Полный текст |