Characterization and thermal behavior of PrMO3 (M = Co or Ni) ceramic materials obtained from gelatin

Aquino, Flávia de Medeiros; Melo, Dulce Maria de Araújo; Pimentel, Patrícia Mendonça; Braga, Renata Martins; Melo, Marcus Antônio De Freitas; Martinelli, Antonio Eduardo; Costa, Asenete Frutuoso

Characterization and thermal behavior of PrMO3 (M = Co or Ni) ceramic materials obtained from gelatin

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dc.contributor.author	Aquino, Flávia de Medeiros
dc.contributor.author	Melo, Dulce Maria de Araújo
dc.contributor.author	Pimentel, Patrícia Mendonça
dc.contributor.author	Braga, Renata Martins
dc.contributor.author	Melo, Marcus Antônio De Freitas
dc.contributor.author	Martinelli, Antonio Eduardo
dc.contributor.author	Costa, Asenete Frutuoso
dc.date.accessioned	2021-03-03T14:40:44Z
dc.date.available	2021-03-03T14:40:44Z
dc.date.issued	2012-09
dc.description.resumo	Metal oxides with perovskite-type structure have attracted considerable interest in recent years due to their magnetic and electrical properties, as well as their catalytic activity. In this study, oxides with PrNiO3 and PrCoO3 composition were prepared by using gelatin powder as a precursor agent for its use as a catalyst. The powders obtained were calcined at 700 8C and 900 8C and characterized using the X-ray diffraction, thermal analysis (thermogravimetry and differential thermal analysis), infrared spectrosco- py, temperature programed reduction and scanning electron microscopy techniques. Thermogravimetric data using the non-isothermal kinetic models of Flynn and Wall and ‘‘Model-free Kinetics’’ were used to determine the activation energy to study the decomposition kinetics of the ligand groups with system’s metallic ions that takes part in the synthesis of PrMO3 (M = Ni or Co)	pt_BR
dc.identifier.citation	AQUINO, F.M.; MELO, D.M.A.; PIMENTEL, P.M.; BRAGA, R.M.; MELO, M.A.F.; MARTINELLI, A.e.; COSTA, A.F.. Characterization and thermal behavior of PrMO3 (M=Co or Ni) ceramic materials obtained from gelatin. Materials Research Bulletin, [S.L.], v. 47, n. 9, p. 2605-2609, set. 2012. Disponível em: https://www.sciencedirect.com/science/article/pii/S0025540812002826?via%3Dihub. Acesso em: 11 nov. 2020. http://dx.doi.org/10.1016/j.materresbull.2012.04.078.	pt_BR
dc.identifier.doi	10.1016/j.materresbull.2012.04.078
dc.identifier.issn	0025-5408
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31648
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Ceramic materials	pt_BR
dc.subject	Perovskites	pt_BR
dc.subject	Gelatin	pt_BR
dc.title	Characterization and thermal behavior of PrMO3 (M = Co or Ni) ceramic materials obtained from gelatin	pt_BR
dc.type	article	pt_BR