Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis

Autores
Blanco, Maria Valeria; Abdala, Paula Macarena; Gennari, Fabiana Cristina; Cova, Federico Hector
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Na-Based materials are emerging as promising high-temperature CO2 sorbents. In this work, we provide a detailed study on the synthesis of Na2TiO3 via a solid-state route using NaOH and TiO2 as starting reactants. The CO2 sorption properties of the synthesized Na2TiO3 were evaluated by thermogravimetric analysis. A subsequent comprehensive study on the complex reaction mechanism of Na2TiO3 at high temperatures under carbonation conditions was performed via real time in situ synchrotron X-ray diffraction analysis. In situ experiments performed under different conditions revealed the occurrence of thermally-driven phase transitions derived from the structural instability of the material at high temperatures. These reactions could be differentiated from carbonation processes, allowing the proposal of a reaction mechanism of the material as a CO2 sorbent. The obtained results can explain the abnormal dynamic thermogram displayed by Na2TiO3 in the presence of CO2 within a temperature range that is of interest for practical applications and serve as a basis for evaluating the feasibility of using this material in CO2 capture schemes.
Fil: Blanco, Maria Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; Francia
Fil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universitat Zurich; Suiza
Fil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Cova, Federico Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; Francia
Materia
CARBON DIOXIDE
CAPTURE
TRANSFORMATION
KINETIC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/157644
Acceder
id CONICETDig_3471cc3f8c5c38cebc1534bab5f7ce31
oai_identifier_str oai:ri.conicet.gov.ar:11336/157644
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysisBlanco, Maria ValeriaAbdala, Paula MacarenaGennari, Fabiana CristinaCova, Federico HectorCARBON DIOXIDECAPTURETRANSFORMATIONKINETIChttps://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2Na-Based materials are emerging as promising high-temperature CO2 sorbents. In this work, we provide a detailed study on the synthesis of Na2TiO3 via a solid-state route using NaOH and TiO2 as starting reactants. The CO2 sorption properties of the synthesized Na2TiO3 were evaluated by thermogravimetric analysis. A subsequent comprehensive study on the complex reaction mechanism of Na2TiO3 at high temperatures under carbonation conditions was performed via real time in situ synchrotron X-ray diffraction analysis. In situ experiments performed under different conditions revealed the occurrence of thermally-driven phase transitions derived from the structural instability of the material at high temperatures. These reactions could be differentiated from carbonation processes, allowing the proposal of a reaction mechanism of the material as a CO2 sorbent. The obtained results can explain the abnormal dynamic thermogram displayed by Na2TiO3 in the presence of CO2 within a temperature range that is of interest for practical applications and serve as a basis for evaluating the feasibility of using this material in CO2 capture schemes.Fil: Blanco, Maria Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; FranciaFil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universitat Zurich; SuizaFil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; ArgentinaFil: Cova, Federico Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; FranciaRoyal Society of Chemistry2021-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/157644Blanco, Maria Valeria; Abdala, Paula Macarena; Gennari, Fabiana Cristina; Cova, Federico Hector; Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis; Royal Society of Chemistry; Reaction Chemistry & Engineering; 6; 7-2021; 1974-19822058-9883CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D1RE00125Finfo:eu-repo/semantics/altIdentifier/doi/10.1039/D1RE00125Finfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:40Zoai:ri.conicet.gov.ar:11336/157644instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:57:41.182CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
title Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
spellingShingle Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
Blanco, Maria Valeria
CARBON DIOXIDE
CAPTURE
TRANSFORMATION
KINETIC
title_short Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
title_full Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
title_fullStr Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
title_full_unstemmed Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
title_sort Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
dc.creator.none.fl_str_mv Blanco, Maria Valeria
Abdala, Paula Macarena
Gennari, Fabiana Cristina
Cova, Federico Hector
author Blanco, Maria Valeria
author_facet Blanco, Maria Valeria
Abdala, Paula Macarena
Gennari, Fabiana Cristina
Cova, Federico Hector
author_role author
author2 Abdala, Paula Macarena
Gennari, Fabiana Cristina
Cova, Federico Hector
author2_role author
author
author
dc.subject.none.fl_str_mv CARBON DIOXIDE
CAPTURE
TRANSFORMATION
KINETIC
topic CARBON DIOXIDE
CAPTURE
TRANSFORMATION
KINETIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.7
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Na-Based materials are emerging as promising high-temperature CO2 sorbents. In this work, we provide a detailed study on the synthesis of Na2TiO3 via a solid-state route using NaOH and TiO2 as starting reactants. The CO2 sorption properties of the synthesized Na2TiO3 were evaluated by thermogravimetric analysis. A subsequent comprehensive study on the complex reaction mechanism of Na2TiO3 at high temperatures under carbonation conditions was performed via real time in situ synchrotron X-ray diffraction analysis. In situ experiments performed under different conditions revealed the occurrence of thermally-driven phase transitions derived from the structural instability of the material at high temperatures. These reactions could be differentiated from carbonation processes, allowing the proposal of a reaction mechanism of the material as a CO2 sorbent. The obtained results can explain the abnormal dynamic thermogram displayed by Na2TiO3 in the presence of CO2 within a temperature range that is of interest for practical applications and serve as a basis for evaluating the feasibility of using this material in CO2 capture schemes.
Fil: Blanco, Maria Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; Francia
Fil: Abdala, Paula Macarena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Universitat Zurich; Suiza
Fil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Cova, Federico Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. European Synchrotron Radiation Facility; Francia
description Na-Based materials are emerging as promising high-temperature CO2 sorbents. In this work, we provide a detailed study on the synthesis of Na2TiO3 via a solid-state route using NaOH and TiO2 as starting reactants. The CO2 sorption properties of the synthesized Na2TiO3 were evaluated by thermogravimetric analysis. A subsequent comprehensive study on the complex reaction mechanism of Na2TiO3 at high temperatures under carbonation conditions was performed via real time in situ synchrotron X-ray diffraction analysis. In situ experiments performed under different conditions revealed the occurrence of thermally-driven phase transitions derived from the structural instability of the material at high temperatures. These reactions could be differentiated from carbonation processes, allowing the proposal of a reaction mechanism of the material as a CO2 sorbent. The obtained results can explain the abnormal dynamic thermogram displayed by Na2TiO3 in the presence of CO2 within a temperature range that is of interest for practical applications and serve as a basis for evaluating the feasibility of using this material in CO2 capture schemes.
publishDate 2021
dc.date.none.fl_str_mv 2021-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/157644
Blanco, Maria Valeria; Abdala, Paula Macarena; Gennari, Fabiana Cristina; Cova, Federico Hector; Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis; Royal Society of Chemistry; Reaction Chemistry & Engineering; 6; 7-2021; 1974-1982
2058-9883
CONICET Digital
CONICET
url http://hdl.handle.net/11336/157644
identifier_str_mv Blanco, Maria Valeria; Abdala, Paula Macarena; Gennari, Fabiana Cristina; Cova, Federico Hector; Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis; Royal Society of Chemistry; Reaction Chemistry & Engineering; 6; 7-2021; 1974-1982
2058-9883
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://xlink.rsc.org/?DOI=D1RE00125F
info:eu-repo/semantics/altIdentifier/doi/10.1039/D1RE00125F
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1844613724078342144
score 13.070432

Publicaciones similares