Thermal study of CoxZn7-xSb2O12 spinel obtained by pechini method using different alcohols

Gouveia, Deiby Santos; Rosenhaim, R.; Maurera, M. A. M. A. de; Lima, Severino Jackson Guedes; Paskocimas, Carlos Alberto; Silva, Elson Longo da; Souza, Antônio Gouveia de; Santos, Ieda Maria Garcia dos

Thermal study of CoxZn7-xSb2O12 spinel obtained by pechini method using different alcohols

Página do item simplificado Estatísticas

dc.contributor.author	Gouveia, Deiby Santos
dc.contributor.author	Rosenhaim, R.
dc.contributor.author	Maurera, M. A. M. A. de
dc.contributor.author	Lima, Severino Jackson Guedes
dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Silva, Elson Longo da
dc.contributor.author	Souza, Antônio Gouveia de
dc.contributor.author	Santos, Ieda Maria Garcia dos
dc.date.accessioned	2021-04-20T17:50:16Z
dc.date.available	2021-04-20T17:50:16Z
dc.date.issued	2004-02
dc.description.resumo	With the aim of obtaining materials with applications in pigments, CoxZn7–xSb2O12 spinels were synthesized using the Pechini method. This method consists in the formation of a polymeric net, where the metallic cations are homogeneously distributed. In this work, two types of alcohol (ethyl glycol and ethylene glycol) were used for the synthesis of a zinc antimoniate spinel, CoxZn7–xSb2O12 (x=0–7). The materials were characterized by termogravimetry (TG) and differential thermal analysis (DTA). TG results indicated a decrease in total mass loss when cobalt was added to the solution substituting zinc, for samples prepared using the two different alcohols. Decomposition temperatures, obtained by TG and DTA, presented a decreasing behavior as cobalt was added to the material. In relation to the alcohols, all results indicated a better polymerization of the resin when ethylene glycol was used, being the most indicated one for cation immobilization. X-ray diffraction did not show differences between the two alcohols – both presented the spinel phase (Co, Zn)2.33Sb0.67O4. Samples with higher quantity of cobalt also presented ilmenite phase (Co, Zn)Sb2O6	pt_BR
dc.identifier.citation	GOUVEIA, D. S.; ROSENHAIM, R.; MAURERA, M. A. M. A. de; LIMA, S. J. G.; PASKOCIMAS, C. A.; LONGO, E.; SOUZA, A. G.; SANTOS, I. M. G.. Thermal study of CoxZn7-xSb2O12spinel obtained by pechini method using different alcohols. Journal of Thermal Analysis and Calorimetry, [S.L.], v. 75, n. 2, p. 453-460, 2004. Disponível em: https://link.springer.com/article/10.1023%2FB%3AJTAN.0000027132.98057.ac. Acesso em: 20 mar. 2021. http://dx.doi.org/10.1023/b:jtan.0000027132.98057.ac.	pt_BR
dc.identifier.doi	10.1023/b:jtan.0000027132.98057.ac
dc.identifier.issn	1388-6150
dc.identifier.issn	1572-8943
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32296
dc.language	en	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.subject	DTA	pt_BR
dc.subject	Pechini	pt_BR
dc.subject	Spinel	pt_BR
dc.subject	Thermogravimetry	pt_BR
dc.title	Thermal study of CoxZn7-xSb2O12 spinel obtained by pechini method using different alcohols	pt_BR
dc.type	article	pt_BR