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dc.contributor.author
Grasso, María Laura
dc.contributor.author
Arneodo Larochette, Pierre Paul
dc.contributor.author
Gennari, Fabiana Cristina
dc.date.available
2021-02-25T16:50:26Z
dc.date.issued
2020-05
dc.identifier.citation
Grasso, María Laura; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; CO2capture properties of Li4SiO4after aging in air at room temperature; Elsevier; Journal of CO2 Utilization; 38; 5-2020; 232-240
dc.identifier.issn
2212-9820
dc.identifier.uri
http://hdl.handle.net/11336/126619
dc.description.abstract
In this study, we evaluated the physicochemical stability of lithium orthosilicate (Li4SiO4) powders after aging in air. Thermogravimetric (TG) analysis in CO2flow evidences that as-milled Li4SiO4stored in a closed plastic container in air at Room Temperature (RT) suffers a time progressive CO2absorption. This carbonation is clearly noticed in the samples with greater specific surface area and depends on two factors: the time of air exposure and the renewal of the air atmosphere in the plastic container, both of them modifying the CO2capture capacity and kinetics of the material. Specific experiments to analyze the effect of water vapor and carbon dioxide atmospheres on the CO2capture properties of Li4SiO4were designed. TG, X-ray diffraction and spectroscopic studies demonstrate that the reaction between as-milled Li4SiO4and CO2present in air was promoted by exposure to humidity. In fact, LiOH and LiOH.H2O were formed at the surface of Li4SiO4during water vapor exposure. These phases enhance the reaction with CO2from the air to form Li2CO3at RT before the first carbonation cycle. As a consequence, the CO2capture capacity of Li4SiO4in the first carbonation cycle was smaller than the one of Li4SiO4without water vapor exposure. In opposition, negligible CO2absorption occurred at RT under CO2atmosphere. The original properties of Li4SiO4powders with high specific surface area could be regenerated by heating at 700»°C. Consequently, the storage conditions of Li4SiO4powders should be considered for their use in different applications.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AIR STABILITY
dc.subject
CO2CAPTURE
dc.subject
LITHIUM ORTHOSILICATE
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RELATIVE HUMIDITY
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SPECIFIC SURFACE AREA
dc.subject.classification
Cerámicos
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Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
CO2capture properties of Li4SiO4after aging in air at room temperature
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-02-22T12:52:03Z
dc.journal.volume
38
dc.journal.pagination
232-240
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Grasso, María Laura. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Arneodo Larochette, Pierre Paul. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Gennari, Fabiana Cristina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.journal.title
Journal of CO2 Utilization
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S221298201931114X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jcou.2020.02.002
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