Published September 1996 | Version v1
Journal article Metadata-only

Role of solid state interactions in the genesis of acid-base properties of the Y2O3-ZrO2 surface

Creators

  • 1. Moskovskij Gosudarstvennyj Universitet. Khimicheskij fakul'tet, Moskva (Russian Federation)

Description

Analysis of acid-base properties of the surface of zirconium dioxide modified by yttrium oxide compared with similar properties of pure ZrO2 has been conducted by the method of diffusion reflection. It is shown that yttrium cations apllied on ZrO2 surface by means of impregnation diffuse to the volume. As a result in near the surface layer a tetragonal modification of zirconium dioxide is formed. the concentration of the lewis acid centres on the surface of modified ZrO2 decreases with increase in yttrium oxide concentration, new adsorption centres of electron-donor character being formed in parallel

Additional details

Additional titles

Original title (Russian)
Рол' твердофазных взаимодействий в формировании кислотно-основных свойств поверхности системы Ы

Publishing Information

Journal Title
Kinetika i Kataliz
Journal Volume
37
Journal Issue
5
Journal Page Range
p. 692-698.
ISSN
0453-8811
CODEN
KNKTA4

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
28071008
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CHEMICAL PROPERTIES; CONCENTRATION RATIO; CRYSTALS; DIFFUSION; HYDROXIDES; INFRARED SPECTRA; SOLIDS; SURFACES; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
CHALCOGENIDES; HYDROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SPECTRA; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Notes
21 refs., 5 figs.