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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  
dc.subject
RELATIVE HUMIDITY  
dc.subject
SPECIFIC SURFACE AREA  
dc.subject.classification
Cerámicos  
dc.subject.classification
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