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Oxygen-perovskites with fourvalent rare earth metals

Abstract

The quadrivalent oxidation stage of the elements praseodymium and terbium can be easily prepared as oxides BaPrO/sub 3/ and BaTbO/sub 3/ crystallizing with the Perovskite structure. From this observation one has tried to stabilize the elements neodymium and dysprosium in the lanthanide series by including a host lattice with Perovskite structure. BaCeO/sub 3/, BaPrO/sub 3/, BaZrO/sub 3/, BaThO/sub 3/, BaTbO/sub 3/, SrCeO/sub 3/ and SrTbO/sub 3/ are used as host lattices. The preparation was carried out by simple annealing of the corresponding oxides with BaCO/sub 3/ or SrCO/sub 3/ in air at 1350/sup 0/C. X-ray and analytical characterization showed that Nd(IV) and Dy(IV) were partly taken up by a few host lattices.
Authors:
Publication Date:
Jan 01, 1978
Product Type:
Book
Reference Number:
EDB-83-068260
Resource Relation:
Other Information: Thesis
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; DYSPROSIUM OXIDES; CHEMICAL PREPARATION; NEODYMIUM OXIDES; PRASEODYMIUM OXIDES; TERBIUM OXIDES; BARIUM COMPOUNDS; CRYSTAL LATTICES; CRYSTALS; LATTICE PARAMETERS; PEROVSKITE; STRUCTURAL CHEMICAL ANALYSIS; THORIUM OXIDES; VALENCE; X-RAY DIFFRACTION; ACTINIDE COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CALCIUM OXIDES; CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL STRUCTURE; DIFFRACTION; DYSPROSIUM COMPOUNDS; MINERALS; NEODYMIUM COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PEROVSKITES; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; SYNTHESIS; TERBIUM COMPOUNDS; THORIUM COMPOUNDS; TITANIUM COMPOUNDS; TITANIUM OXIDES; TRANSITION ELEMENT COMPOUNDS; 360200* - Ceramics, Cermets, & Refractories; 400200 - Inorganic, Organic, & Physical Chemistry
OSTI ID:
6338090
Country of Origin:
Germany
Language:
German
Submitting Site:
HEDB
Size:
Pages: 126
Announcement Date:
Mar 01, 1983

Citation Formats

Kristen, H R. Oxygen-perovskites with fourvalent rare earth metals. Germany: N. p., 1978. Web.
Kristen, H R. Oxygen-perovskites with fourvalent rare earth metals. Germany.
Kristen, H R. 1978. "Oxygen-perovskites with fourvalent rare earth metals." Germany.
@misc{etde_6338090,
title = {Oxygen-perovskites with fourvalent rare earth metals}
author = {Kristen, H R}
abstractNote = {The quadrivalent oxidation stage of the elements praseodymium and terbium can be easily prepared as oxides BaPrO/sub 3/ and BaTbO/sub 3/ crystallizing with the Perovskite structure. From this observation one has tried to stabilize the elements neodymium and dysprosium in the lanthanide series by including a host lattice with Perovskite structure. BaCeO/sub 3/, BaPrO/sub 3/, BaZrO/sub 3/, BaThO/sub 3/, BaTbO/sub 3/, SrCeO/sub 3/ and SrTbO/sub 3/ are used as host lattices. The preparation was carried out by simple annealing of the corresponding oxides with BaCO/sub 3/ or SrCO/sub 3/ in air at 1350/sup 0/C. X-ray and analytical characterization showed that Nd(IV) and Dy(IV) were partly taken up by a few host lattices.}
place = {Germany}
year = {1978}
month = {Jan}
}