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Title

Studies of the formation and reduction of a mixed three-dimensional perovskite of copper and titanium

AuthorsPalacín, M. Rosa ; Bassas, J.; Rodríguez-Carvajal, Juan; Fuertes, Amparo ; Casañ Pastor, Nieves ; Gómez-Romero, P. ; Gómez-Romero, P.
KeywordsLanthanum
Oxides
Oxides
Perovskites
Perovskites
Titanium
Titanium
Copper
Copper
Issue Date1994
PublisherElsevier
CitationMaterials Research Bulletin 29(9): 973-980 (1994)
AbstractWe report differential scanning calorimetric analyses of several reactions leading to the formation of the mixed perovskite La2CuTiO6. The synthesis of this oxide was carried out following three different strategies: i) classical ceramic methods, ii) use of a layered oxide precursor (La2CuO4), and iii) sol-gel method. Electron diffraction and neutron diffraction data on the sol-gel product complete the structural characterization of this oxide, which presents an orthorhombically distorted perovskite structure of the GdFeO3 type, with a distortion proportional to the temperature of synthesis. Neutron diffraction shows no long-range order of Cu(II) and Ti(IV) in the structure. Finally, the reduction of this perovskite to yield La2CuTiO5 is reported.
URIhttp://hdl.handle.net/10261/129807
DOI10.1016/0025-5408(94)90058-2
Identifiersdoi: 10.1016/0025-5408(94)90058-2
issn: 0025-5408
Appears in Collections:(ICMAB) Artículos
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