Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Preparation of ternary Bi-La and Bi-Pr oxides from polyaminocarboxylate complexes
Autore:
Wullens, H; Leroy, D; Devillers, M;
Indirizzi:
Univ Catholique Louvain, Unite Chim Mat Inorgan & Organ, B-1348 Louvain, Belgium Univ Catholique Louvain Louvain Belgium B-1348 , B-1348 Louvain, Belgium
Titolo Testata:
INTERNATIONAL JOURNAL OF INORGANIC MATERIALS
fascicolo: 4-5, volume: 3, anno: 2001,
pagine: 309 - 321
SICI:
1466-6049(200107)3:4-5<309:POTBAB>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
ETHYLENEDIAMINETETRAACETIC ACID; ION CONDUCTORS; BISMUTH(III) COMPLEXES; THERMAL-DECOMPOSITION; CITRATE PRECURSORS; SOLID ELECTROLYTES; CARBON-DIOXIDE; CU-O; POWDER; PEROVSKITE;
Keywords:
oxides; chemical synthesis; X-ray diffraction; photoelectron spectroscopy; thermogravimetric analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
57
Recensione:
Indirizzi per estratti:
Indirizzo: Devillers, M Univ Catholique Louvain, Unite Chim Mat Inorgan & Organ, Pl Louis Pasteur 1, B-1348 Louvain, Belgium Univ Catholique Louvain Pl Louis Pasteur 1 Louvain Belgium B-1348
Citazione:
H. Wullens et al., "Preparation of ternary Bi-La and Bi-Pr oxides from polyaminocarboxylate complexes", INT J INORG, 3(4-5), 2001, pp. 309-321

Abstract

Ternary bismuth-lanthanum and bismuth-praseodymium oxides are prepared by thermal decomposition of precursor complexes derived from solutions containing polyaminocarboxylate ligands: H(4)edta, H(5)dtpa, H(4)egta and H(6)ttha. The thermal decomposition of these solid precursors is investigated by TGA. The resulting Bi-La and Bi-Pr oxides are characterized by XRD, XPS analysis and S-BET measurements. XRD reveals the formation of Bi(2-x)Ln(x)O(3) solid solutions based on the Ruorite-like delta -Bi2O3 structure when Bi:Ln = 0.5 and Bi:Ln = 1, while a rhombohedral phase appears when Bi:Ln = 2. Surface contamination by hydroxyl and carbonate species increases with the Ln content. Specific surface areas as high as 30 m(2)/g are obtained for the Ln-rich compositions. These results are compared with those obtained by the ceramic and citrate methods. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 15:34:52