Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite

Autores
Gamba, Nadia Soledad; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Mg(NH2)2-2LiH composite is a promising hydrogen storage material due to its favourable thermodynamics and hydrogen storage reversibility. However, its application is restricted owing to the presence of severe kinetic barriers. In the present work, the Mg(NH2)2-2LiH was synthesized by metathesis reaction of LiNH2 plus MgCl2 and posterior milling with LiH. LiCl is a co-product that operates as a separation phase favouring the nanostructure of the composite. The synthesized material exhibits good dehydrogenation rate and approximately the theoretical hydrogen storage capacity at 200°C. However, the formation of Li4(NH2)3Cl and the incomplete rehydrogenation of Li2Mg2(NH2)3 are progressively favoured during successive hydrogen cycling, deteriorating the storage properties. Two competitive reactions can simultaneously occur involving LiNH2 as an intermediate phase: the formation of Li4(NH2)3Cl using the co-product LiCl and the complete dehydrogenation of Li2Mg2(NH2)3 leading to the Li2Mg(NH)2 formation. The worst effect of Li4(NH2)3Cl formation was simultaneously demonstrated by kinetics and PCI measurements. The amide-chloride phase was actually the active species for the deterioration of dehydrogenation kinetics and hydrogen storage capacity of the Li-Mg-N-H-Cl system.
Fil: Gamba, Nadia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Arneodo Larochette, Pierre Paul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Materia
AMIDE
HYDROGEN STORAGE
KINETICS
AMIDE-CHLORIDE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/127055
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/127055
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH compositeGamba, Nadia SoledadArneodo Larochette, Pierre PaulGennari, Fabiana CristinaAMIDEHYDROGEN STORAGEKINETICSAMIDE-CHLORIDEhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The Mg(NH2)2-2LiH composite is a promising hydrogen storage material due to its favourable thermodynamics and hydrogen storage reversibility. However, its application is restricted owing to the presence of severe kinetic barriers. In the present work, the Mg(NH2)2-2LiH was synthesized by metathesis reaction of LiNH2 plus MgCl2 and posterior milling with LiH. LiCl is a co-product that operates as a separation phase favouring the nanostructure of the composite. The synthesized material exhibits good dehydrogenation rate and approximately the theoretical hydrogen storage capacity at 200°C. However, the formation of Li4(NH2)3Cl and the incomplete rehydrogenation of Li2Mg2(NH2)3 are progressively favoured during successive hydrogen cycling, deteriorating the storage properties. Two competitive reactions can simultaneously occur involving LiNH2 as an intermediate phase: the formation of Li4(NH2)3Cl using the co-product LiCl and the complete dehydrogenation of Li2Mg2(NH2)3 leading to the Li2Mg(NH)2 formation. The worst effect of Li4(NH2)3Cl formation was simultaneously demonstrated by kinetics and PCI measurements. The amide-chloride phase was actually the active species for the deterioration of dehydrogenation kinetics and hydrogen storage capacity of the Li-Mg-N-H-Cl system.Fil: Gamba, Nadia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Arneodo Larochette, Pierre Paul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; ArgentinaFil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; ArgentinaRoyal Society of Chemistry2015-08-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/127055Gamba, Nadia Soledad; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite; Royal Society of Chemistry; RSC Advances; 5; 84; 6-8-2015; 68542-685502046-2069CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C5RA12241Dinfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2015/RA/C5RA12241D#!divAbstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:55Zoai:ri.conicet.gov.ar:11336/127055instacron: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:34982025-09-03 09:45:55.414CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
title Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
spellingShingle Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
Gamba, Nadia Soledad
AMIDE
HYDROGEN STORAGE
KINETICS
AMIDE-CHLORIDE
title_short Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
title_full Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
title_fullStr Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
title_full_unstemmed Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
title_sort Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite
dc.creator.none.fl_str_mv Gamba, Nadia Soledad
Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author Gamba, Nadia Soledad
author_facet Gamba, Nadia Soledad
Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author_role author
author2 Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author2_role author
author
dc.subject.none.fl_str_mv AMIDE
HYDROGEN STORAGE
KINETICS
AMIDE-CHLORIDE
topic AMIDE
HYDROGEN STORAGE
KINETICS
AMIDE-CHLORIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The Mg(NH2)2-2LiH composite is a promising hydrogen storage material due to its favourable thermodynamics and hydrogen storage reversibility. However, its application is restricted owing to the presence of severe kinetic barriers. In the present work, the Mg(NH2)2-2LiH was synthesized by metathesis reaction of LiNH2 plus MgCl2 and posterior milling with LiH. LiCl is a co-product that operates as a separation phase favouring the nanostructure of the composite. The synthesized material exhibits good dehydrogenation rate and approximately the theoretical hydrogen storage capacity at 200°C. However, the formation of Li4(NH2)3Cl and the incomplete rehydrogenation of Li2Mg2(NH2)3 are progressively favoured during successive hydrogen cycling, deteriorating the storage properties. Two competitive reactions can simultaneously occur involving LiNH2 as an intermediate phase: the formation of Li4(NH2)3Cl using the co-product LiCl and the complete dehydrogenation of Li2Mg2(NH2)3 leading to the Li2Mg(NH)2 formation. The worst effect of Li4(NH2)3Cl formation was simultaneously demonstrated by kinetics and PCI measurements. The amide-chloride phase was actually the active species for the deterioration of dehydrogenation kinetics and hydrogen storage capacity of the Li-Mg-N-H-Cl system.
Fil: Gamba, Nadia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Arneodo Larochette, Pierre Paul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
Fil: Gennari, Fabiana Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro | Universidad Nacional de Cuyo. Instituto Balseiro. Archivo Histórico del Centro Atómico Bariloche e Instituto Balseiro; Argentina. Universidad Nacional de Cuyo; Argentina
description The Mg(NH2)2-2LiH composite is a promising hydrogen storage material due to its favourable thermodynamics and hydrogen storage reversibility. However, its application is restricted owing to the presence of severe kinetic barriers. In the present work, the Mg(NH2)2-2LiH was synthesized by metathesis reaction of LiNH2 plus MgCl2 and posterior milling with LiH. LiCl is a co-product that operates as a separation phase favouring the nanostructure of the composite. The synthesized material exhibits good dehydrogenation rate and approximately the theoretical hydrogen storage capacity at 200°C. However, the formation of Li4(NH2)3Cl and the incomplete rehydrogenation of Li2Mg2(NH2)3 are progressively favoured during successive hydrogen cycling, deteriorating the storage properties. Two competitive reactions can simultaneously occur involving LiNH2 as an intermediate phase: the formation of Li4(NH2)3Cl using the co-product LiCl and the complete dehydrogenation of Li2Mg2(NH2)3 leading to the Li2Mg(NH)2 formation. The worst effect of Li4(NH2)3Cl formation was simultaneously demonstrated by kinetics and PCI measurements. The amide-chloride phase was actually the active species for the deterioration of dehydrogenation kinetics and hydrogen storage capacity of the Li-Mg-N-H-Cl system.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-06
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/11336/127055
Gamba, Nadia Soledad; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite; Royal Society of Chemistry; RSC Advances; 5; 84; 6-8-2015; 68542-68550
2046-2069
CONICET Digital
CONICET
url http://hdl.handle.net/11336/127055
identifier_str_mv Gamba, Nadia Soledad; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Effect of LiCl presence on the hydrogen storage performance of the Mg(NH2)2-2LiH composite; Royal Society of Chemistry; RSC Advances; 5; 84; 6-8-2015; 68542-68550
2046-2069
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C5RA12241D
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2015/RA/C5RA12241D#!divAbstract
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
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
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score 13.13397

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