ChemInform Abstract: SOLID-STATE IONICS: PROTONIC CONDUCTION IN PEROVSKITE TYPE OXIDE SOLID SOLUTIONS

1981 ◽  
Vol 12 (14) ◽  
Author(s):  
T. TAKAHASHI ◽  
H. IWAHARA
1998 ◽  
Vol 13 (4) ◽  
pp. 852-855 ◽  
Author(s):  
Shigeru Ikeda ◽  
Michikazu Hara ◽  
Junko N. Kondo ◽  
Kazunari Domen ◽  
Hiroyuki Takahashi ◽  
...  

A layered perovskite type oxide, K2La2Ti3O10, was prepared by a gel technique using the polymerized complex (PC) method. A single phase K2La2Ti3O10 was obtained by adding twice the potassium required for stoichiometry. The Ni–K2La2Ti3O10 catalyst prepared by the PC method exhibited a higher photocatalytic activity for decomposition of H2O into H2 and O2 than that prepared by a conventional solid state reaction.


2014 ◽  
Vol 29 (3) ◽  
pp. 254-259 ◽  
Author(s):  
Naoki Takani ◽  
Hisanori Yamane

CaTi1−xSnxO3 (x = 0.0–1.0) solid solutions were prepared by solid-state reaction at 1450 °C. Rietveld refinement of their powder X-ray diffraction patterns revealed that all the solid solutions crystallized in orthorhombic cells with the perovskite-type structure, the space group Pbnm. The refined unit-cell parameters linearly increased with nominal tin contents x.


2003 ◽  
Vol 43 (4) ◽  
pp. 397-406 ◽  
Author(s):  
S Cimino ◽  
L Lisi ◽  
S De Rossi ◽  
M Faticanti ◽  
P Porta

Nukleonika ◽  
2015 ◽  
Vol 60 (1) ◽  
pp. 81-85 ◽  
Author(s):  
Karol Kowal ◽  
Maciej Kowalczyk ◽  
Dionizy Czekaj ◽  
Elżbieta Jartych

Abstract This paper presents the results of the study on structure and magnetic properties of the perovskite-type (BiFeO3)x-(BaTiO3)1−x solid solutions. The samples differing in the chemical composition (x = 0.9, 0.8, and 0.7) were produced according to the conventional solid-state sintering method from the mixture of powders. Moreover, three different variants of the fabrication process differing in the temperatures and soaking time were applied. The results of X-ray diffraction (XRD), Mössbauer spectroscopy (MS), and vibrating sample magnetometry (VSM) were collected and compared for the set of the investigated materials. The structural transformation from rhombohedral to cubic symmetry was observed for the samples with x = 0.7. With increasing of BaTiO3 concentration Mössbauer spectra become broadened reflecting various configurations of atoms around 57Fe probes. Moreover, gradual decreasing of the average hyperfine magnetic field and macroscopic magnetization were observed with x decreasing.


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