Environmentally friendly synthesis methods to obtain the misfit [Ca2CoO3-d]0.62[CoO2] thermoelectric material

Paskocimas, Carlos Alberto; Emerenciano, Aline Alencar; Araújo, Allan Jedson Medeiros de; Grilo, João Paulo de Freitas; Macedo, Daniel Araújo de; Rasekh, Shahed; Kovalevsky, Andrei V.; Nascimento, Rubens Maribondo do

Environmentally friendly synthesis methods to obtain the misfit [Ca2CoO3-d]0.62[CoO2] thermoelectric material

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dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Emerenciano, Aline Alencar
dc.contributor.author	Araújo, Allan Jedson Medeiros de
dc.contributor.author	Grilo, João Paulo de Freitas
dc.contributor.author	Macedo, Daniel Araújo de
dc.contributor.author	Rasekh, Shahed
dc.contributor.author	Kovalevsky, Andrei V.
dc.contributor.author	Nascimento, Rubens Maribondo do
dc.date.accessioned	2021-04-12T16:45:04Z
dc.date.issued	2019-11-01
dc.description.embargo	2021-12
dc.description.resumo	This work reports the microstructural and thermoelectric characterization of the misfit [Ca2CoO3-d]0.62[CoO2] compound obtained by a solid-state synthesis using mollusk shells and a proteic sol-gel method, which uses gelatin as a polymerizing agent. The results clearly demonstrate the capability of these routes to produce pure Ca3Co4O9 with plate-like morphology. Sintered ceramic samples show randomly oriented grains and relative densities in the range of 63–67%. The obtained microstructures provide reasonable electrical properties and result in competitive thermoelectric performance for the material prepared by the proteic sol-gel synthesis (P.F. of 205 lW/K2 m at 700 C)	pt_BR
dc.identifier.citation	EMERENCIANO, Aline A.; ARAðJO, Allan J.M.; GRILO, João P.F.; MACEDO, Daniel A.; RASEKH, Shahed; KOVALEVSKY, Andrei V.; PASKOCIMAS, Carlos A.; NASCIMENTO, Rubens M.. Environmentally friendly synthesis methods to obtain the misfit [Ca2CoO3-δ]0.62[CoO2] thermoelectric material. Materials Letters, [S.L.], v. 254, p. 286-289, nov. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167577X19310407?via%3Dihub. Acesso em: 04 dez. 2020. http://dx.doi.org/10.1016/j.matlet.2019.07.053.	pt_BR
dc.identifier.doi	10.1016/j.matlet.2019.07.053
dc.identifier.issn	0167-577X
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32155
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	Ca3Co4O9	pt_BR
dc.subject	Ceramics	pt_BR
dc.subject	Environmentally friendly precursors	pt_BR
dc.subject	Proteic sol-gel synthesis	pt_BR
dc.subject	Electrical properties	pt_BR
dc.title	Environmentally friendly synthesis methods to obtain the misfit [Ca2CoO3-d]0.62[CoO2] thermoelectric material	pt_BR
dc.type	article	pt_BR