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dc.contributor.author
Gardey Merino, María Celeste
dc.contributor.author
Fernández de Rapp, M. EMilia
dc.contributor.author
Pinto, Monica
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Etchechoury, M. Elisa
dc.contributor.author
Lassa, Maria Silvina
dc.contributor.author
Martín Martínez, Jose Miguel
dc.contributor.author
Lascalea, Gustavo Enrique
dc.contributor.author
Vazquez, Patricia Graciela
dc.date.available
2018-09-17T13:46:20Z
dc.date.issued
2015-01
dc.identifier.citation
Gardey Merino, María Celeste; Fernández de Rapp, M. EMilia; Pinto, Monica; Etchechoury, M. Elisa; Lassa, Maria Silvina; et al.; Combustion Synthesis of Ultrafine Powders of Co3O4 for Selective Surfaces of Solar Collectors; Elsevier; Procedia Materials Science; 9; 1-2015; 230-238
dc.identifier.issn
2211-8128
dc.identifier.uri
http://hdl.handle.net/11336/59832
dc.description.abstract
Solar selective paints, with the addition of Co3O4 as a pigment, are used to improve energetic efficiency in solar collectors.Although Co3O4 has been obtained by different methods, references about combustion synthesis are scarce. Co3O4 powders havebeen synthesized by stoichiometric and non-stoichiometric routes using aspartic acid (Asp) or tri-hydroxi-methyl-aminomethane(Tris) as fuels. The samples were calcined in air at 500 °C. They were characterized by X-ray diffraction, scanning electronmicroscopy, transmission electron microscopy, thermogravimetric analysis, differential scanning calorimetry, Fourier transforminfrared spectrum and the specific surface area of the samples was determined by means of the Brunauer?Emmett?Tellertechnique. The optical properties of pigments were assessed by means of a spectrophotometer. In all cases, powders exhibited thecrystalline structure of Co3O4. A minimum crystallite average size of 29 nm was observed for powders obtained by the?stoichiometric/Asp? combustion route, while a maximum value of 41 nm was stated for powders obtained by the ?nonstoichiometric/Asp?combustion process. The average particle size ranged between 50 and 100 nm. The powders obtained by the?stoichiometric/Asp? method were selected to study their optical properties; their solar absorption value was 86%. Solar selectivesurfaces composed by Co3O4 pigments and an alkyd resin were obtained and applied over copper or aluminum substrates. In both cases, solar absorptance was of 93% and comparable with similar solar selective surfaces, but the thermal emittance value washigher than 90%, as a consequence of the large width of the films.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Combustion Synthesis
dc.subject
Ultrafine Powders
dc.subject
Co3o4
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Selective Surfaces
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Solar Collectors
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Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Combustion Synthesis of Ultrafine Powders of Co3O4 for Selective Surfaces of Solar Collectors
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-09-14T19:00:40Z
dc.journal.volume
9
dc.journal.pagination
230-238
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Chicago
dc.description.fil
Fil: Gardey Merino, María Celeste. Universidad Tecnológica Nacional; Argentina
dc.description.fil
Fil: Fernández de Rapp, M. EMilia. Ministerio de Defensa. Instituto de Investigaciones Científicas y Técnicas para la Defensa; Argentina
dc.description.fil
Fil: Pinto, Monica. Instituto Nacional de Tecnología Industrial; Argentina
dc.description.fil
Fil: Etchechoury, M. Elisa. Instituto Nacional de Tecnología Industrial; Argentina
dc.description.fil
Fil: Lassa, Maria Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Martín Martínez, Jose Miguel. Universidad de Alicante; España
dc.description.fil
Fil: Lascalea, Gustavo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.description.fil
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
dc.journal.title
Procedia Materials Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.mspro.2015.04.029
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2211812815000309
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