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Powder X-ray diffraction study of LaCo0.5Ni0.5O3−δ and LaCo0.5Fe0.5O3−δ

Published online by Cambridge University Press:  06 March 2012

N. P. Vyshatko,
V. V. Kharton,
A. L. Shaula and
F. M. B. Marques
N. P. Vyshatko
Affiliation:
Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
V. V. Kharton*
Affiliation:
Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
A. L. Shaula
Affiliation:
Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
F. M. B. Marques
Affiliation:
Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro, Portugal
*
a)Author to whom correspondence should be addressed; electronic mail: kharton@cv.ua.pt
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Abstract

The crystal structures of LaCo0.5Ni0.5O3−δ and LaCo0.5Fe0.5O3−δ solid solutions, studied by powder X-ray diffraction, were found to be rhombohedral perovskite. The unit cell parameters in the hexagonal setting are a=5.491(6) Å and c=13.231(3) Å for LaCo0.5Fe0.5O3−δ, and a=5.464(4) Å and c=13.125(3) Å for LaCo0.5Ni0.5O3−δ. The space group is R3c (No. 167).

Keywords

powder diffractionperovskiteLaCo0.5Fe0.5O3-δLaCo0.5Ni0.5O3-δwhole profile refinement

Information

Type
New Diffraction Data
Information
Powder Diffraction , Volume 18 , Issue 2 , June 2003, pp. 159 - 161
Copyright
Copyright © Cambridge University Press 2005

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References

Anderson, H. U. (1992). “Review of p-type doped perovskite materials for SOFC and other applications,” Solid State Ionics SSIOD3 52, 33–41. ssi, SSIOD3 CrossRefGoogle Scholar
Garcia-Munoz, J. L., Rodriguez-Carvajal, J., Lacorre, P., and Torrance, J. B. (1992). “Neutron-diffraction study of RNiO3 (R=La, Pr, Nd, Sm): Electronically induced structural changes across the metal-insulator transition,” J. Phys.: Condens. Matter JCOMEL 46, 4414–4425. jcz, JCOMEL Google ScholarPubMed
Kharton, V. V., Yaremchenko, A. A., and Naumovich, E. N. (1999). “Research on the electrochemistry of oxygen ion conductors in the former Soviet Union. II. Perovskite-related oxides,” J. Solid State Electrochem. JSSEFS 3, 303–326. 93b, JSSEFS Google Scholar
Mineshige, A., Kobune, M., Fujii, S., Ogumi, Z., Inaba, M., Yao, T., and Kikuchi, K. (1999). “Metal-insulator transition and crystal structure of La1−xSrxCoO3 as functions of Sr-content, temperature and oxygen partial pressure,” J. Solid State Chem. JSSCBI 142, 374–381. jss, JSSCBI CrossRefGoogle Scholar
Mizusaki, J. (1992). “Nonstoichiometry, diffusion, and electrical properties of perovskite-type oxide electrode materials,” Solid State Ionics SSIOD3 52, 79–91. ssi, SSIOD3 CrossRefGoogle Scholar
Narasimhan, V., Keer, H. V., and Chakrabarty, D. K. (1985). “Structural and electrical properties of the LaCo1−xMnxO3 and LaCo1−xFexO3 systems,” Phys. Status Solidi A PSSABA 89, 65–71. psa, PSSABA CrossRefGoogle Scholar
Petrov, A. N., Kononchuk, O. F., Andreev, A. V., Cherepanov, V. A., and Kofstad, P. (1995). “Crystal structure, electrical and magnetic properties of La1−xSrxCoO3−y,” Solid State Ionics SSIOD3 80, 189–199. ssi, SSIOD3 CrossRefGoogle Scholar
Ravindran, P., Fjellvag, H., Kjekshus, A., Blaha, P., Schwarz, K., and Luitz, J. (2001). “Itinerant metamagnetism and possible spin transition in LaCoO3 by temperature/hole doping,” J. Appl. Phys. JAPIAU 91, 291–303. jap, JAPIAU Google Scholar
Rodriguez-Carvajal, J. (1993). “Recent advances in magnetic structure determination by neutron powder diffraction,” Physica B PHYBE3 192, 55–69. phb, PHYBE3 CrossRefGoogle Scholar
Shannon, R. D. (1976). “Revised effective ionic-radii and systematic studies of interatomic distances in halides and chalcogenides,” Acta Crystallogr., Sect. A: Cryst. Phys., Diffr., Theor. Gen. Crystallogr. ACACBN A32, 751–767. aca, ACACBN CrossRefGoogle Scholar
Thornton, G., Tofield, B. C., and Hewat, A. W. (1986). “A neutron diffraction study of LaCoO3 in the temperature range 4.2<T<1248 K,” J. Solid State Chem. JSSCBI 61, 301–307. jss, JSSCBI CrossRefGoogle Scholar
Troyanchuk, I. O., Lobanovsky, L. S., Khalyavin, D. D., Pastushonok, S. N., and Szymczak, H. (2000). “Magnetic and magnetotransport properties of Co-doped manganites with perovskite structure,” J. Magn. Magn. Mater. JMMMDC 210, 63–72. jmm, JMMMDC CrossRefGoogle Scholar
Vyshatko, N. P., Kharton, V. V., Shaula, A. L., Naumovich, E. N., and Marques, F. M. B. (2002). “Structural characterization of mixed conducting perovskites La(Ga,M)O3−δ (M=Mn, Fe, Co, Ni),” Mater. Res. Bull. (in press).Google Scholar
Wold, A., and Croft, W. (1959). “Preparation and properties of the systems LnFexCr1−xO3 and LaFexCo1−xO3,” J. Phys. Chem. JPCHAX 63, 447–448. jch, JPCHAX CrossRefGoogle Scholar