Published September 1990 | Version v1
Journal article Metadata-only

EPR study of xerogels (H3O2)V12-xMoxO31+-y·nH2O

Creators

Description

State of paramagnetic ions in polyvanadium acid xerogels depending on degree of molybdenum substitution for vanadium and thermal treatment is studied by EPR technique. Spectra are recorded within 3-centimeter range at 77 and 300 K. Hyperfine structure within EPR spectrum of the investigated xerogels is observed at x=0.5 and 1.0 up to 200 deg C and disappears after specimen complete dehydration. Nonmonotonic variation of paramagnetic centre concentration depending on temperature of xerogel calcination is explaned by reduction-oxidation processes during dehydration

Additional details

Additional titles

Original title (Russian)
Issledovanie metodom EhPR kserogelej (H

Publishing Information

Journal Title
Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy
Journal Volume
26
Journal Issue
9
Series
Izv. Akad. Nauk SSSR, Neorg. Mater.
Journal Page Range
1893-1896
ISSN
0002-337X
CODEN
IVNMA

INIS

Country of Publication
Russian Federation
Country of Input or Organization
USSR
INIS RN
23033774
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CALCINATION; CHEMICAL COMPOSITION; CHEMICAL REACTION KINETICS; DEHYDRATION; ELECTRON SPIN RESONANCE; GELS; HETEROPOLYANIONS; HYDRATES; HYPERFINE STRUCTURE; INORGANIC ACIDS; MOLYBDENUM COMPOUNDS; OXYGEN COMPOUNDS; PARAMAGNETISM; SPECTRA; VANADIUM COMPOUNDS
Descriptors DEC
ANIONS; CHARGED PARTICLES; CHEMICAL REACTIONS; COLLOIDS; COMPLEXES; DECOMPOSITION; DISPERSIONS; HYDROGEN COMPOUNDS; INORGANIC COMPOUNDS; IONS; KINETICS; MAGNETIC RESONANCE; MAGNETISM; PYROLYSIS; REACTION KINETICS; RESONANCE; TRANSITION ELEMENT COMPOUNDS