Optical and Structural Properties of Lanthanum Chromite Synthesized by Microwave Assisted Self-Combustion Method

Patrícia Mendonça Pimentel; Kaique Matheus Barbosa Ferreira; Danielle Karinne Souza Gomes; Asenete Frutuoso Costa; Dulce Maria de Araújo Melo; Rosane Maria Pessoa Betânio Oliveira

doi:10.4028/www.scientific.net/MSF.881.7

Paper Titles

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Synthesis and Characterization of LaCr_1-xSn_xO₃ Nanopowders (x = 0 and 0.1)
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Optical and Structural Properties of Lanthanum Chromite Synthesized by Microwave Assisted Self-Combustion Method
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Gamma-Alumina Synthesis from Ceramic Powders of Pseudoboehmite Obtained by the Sol-Gel Process
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Microwave Irradiation Applied to Calcination and Sintering of Strontium Titanate Ceramics
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HomeMaterials Science ForumMaterials Science Forum Vol. 881Optical and Structural Properties of Lanthanum...

Optical and Structural Properties of Lanthanum Chromite Synthesized by Microwave Assisted Self-Combustion Method

Abstract:

Lanthanum chromite is a perovskite oxide type, which exhibit high mechanical and chemical stability, high electric conductivity for use in SOFC and catalytic activity for the oxidation reaction. However, their optical properties have not yet been studied. The aim of this study was to synthesize lanthanum chromite by the microwave assisted self-combustion method for use as ceramic pigment. The resulting precursor powders were calcined at 800 to 1000 ° C to obtain the perovskite phase and characterized by X-ray diffraction, followed by Rietveld refinement, UV-Visible and colorimetry. The results revealed porous powders, nanometric, and single-phase with orthorhombic perovskite structure. There was few change in the colorimetric parameters, the chromites presented colours with gray tones which became darker in the calcined powder at higher temperatures.

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Materials Science Forum (Volume 881)

Pages:

7-11

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.881.7

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Online since:

November 2016

Authors:

Patrícia Mendonça Pimentel, Kaique Matheus Barbosa Ferreira, Danielle Karinne Souza Gomes, Asenete Frutuoso Costa, Dulce Maria de Araújo Melo, Rosane Maria Pessoa Betânio Oliveira

Keywords:

Lanthanum Chromite, Microwave Assisted Synthesis, Optical Properties, Perovskite

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References

[1] H. Tanaka, M. Misono: Current Opinion in Solid State and Materials Science Vol. 5 (2001), p.381.

Google Scholar

[2] K. Rida, A. Benabbas, F. Bouremmad, M.A. Penã, E. Sastre, A. Martinez-Arias: Applied Catalysis A General Vol. 327 (2007), p.173.

DOI: 10.1016/j.apcata.2007.05.015

Google Scholar

[3] A.K. Norman, M.A. Morris, F.A. Deeney: Journal of Materials Processing Technology Vol. 118 (1999), p.92.

Google Scholar

[4] P.M. Pimentel, M.F. Ginani, A.E. Martinelli, D.M.A. Melo, A.M.G. Pedrosa, M.A. Melo: Materials Science Fórum Vols. 498-499 (2005), p.663.

Google Scholar

[5] K. Yoshii, A. Nakamura, Y. Ishii, and Y. Morii: Journal of Solid State Chemistry Vol. 162 (2001), p.84.

Google Scholar

[6] A.C.F.M. Costa, M.A.F. Ramalho, L.S. Neiva1, S. Alves-Jr., R.H.G.A. Kiminami, L. Gama: Revista Eletrônica de materiais e processos Vols 2 3 (2007), 14.

Google Scholar

[7] A.L.A. Silva, L.D. Conceição, A.M. Rocco, M.M.V.M. Souza: Cerâmica Vol. 58 (2012), p.521.

Google Scholar

[8] F.S. Oliveira, P.M. Pimentel, R.M.P.B. Oliveira, D.M.A. Melo, M.A.F. Melo: Materials Letters Vol. 64 (2010), p.2700.

Google Scholar

[9] M. Dondi, G. Gruciane, G. Guarani, F. Matteucci, M. Raimondo: Ceramics International Vol. 32 (2006), p.393.

Google Scholar