Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite

Autores
Amica, Guillermina; Rönnebro, E. C. E.; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of different metal oxides (Co3O4 and NiO) on the dehydrogenation reactions pathways of the Li4(NH2)3BH4-LiH composite was investigated. The additives were reduced to metallic species i.e. Co and Ni which act as catalysts by breaking the B-H bonds in the Li-B-N-H compounds. The onset decomposition temperature was lowered by 32 °C for the Ni-catalysed sample, which released 8.8 wt% hydrogen below 275°C. It was demonstrated that the decomposition of the doped composite followed a mechanism via LiNH2 and Li3BN2 formation as the end product with a strong reduction of NH3 emission. The sample could be partially re-hydrogenated (~1.5 wt%) due to the lithium imide/amide transformation. To understand the LiH role, the Li4(NH2)3BH4-LiH-NiO and the Li4(NH2)3BH4-NiO composites were compared. The absence of LiH as a reactant forced the system to follow another path, which involved the formation of an intermediate phase of composition Li3BN2H2 at the early stages of dehydrogenation and the end products LiNH2 and monoclinic Li3BN2. We showed evidence for the interaction between NiO and LiNH2 during heating and we propose that the presence of Li facilitates a NHx-rich environment and the Ni catalyst mediates the electron transfer to promote NHx coupling.
Fil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Rönnebro, E. C. E.. Pacific Northwest National Laboratory; Estados Unidos
Fil: Arneodo Larochette, Pierre Paul. 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
Fil: Gennari, Fabiana Cristina. 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
Materia
Hydrogen Storage
Lithium
Ni
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:11336/68249
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/68249
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH compositeAmica, GuillerminaRönnebro, E. C. E.Arneodo Larochette, Pierre PaulGennari, Fabiana CristinaHydrogen StorageLithiumNihttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The effect of different metal oxides (Co3O4 and NiO) on the dehydrogenation reactions pathways of the Li4(NH2)3BH4-LiH composite was investigated. The additives were reduced to metallic species i.e. Co and Ni which act as catalysts by breaking the B-H bonds in the Li-B-N-H compounds. The onset decomposition temperature was lowered by 32 °C for the Ni-catalysed sample, which released 8.8 wt% hydrogen below 275°C. It was demonstrated that the decomposition of the doped composite followed a mechanism via LiNH2 and Li3BN2 formation as the end product with a strong reduction of NH3 emission. The sample could be partially re-hydrogenated (~1.5 wt%) due to the lithium imide/amide transformation. To understand the LiH role, the Li4(NH2)3BH4-LiH-NiO and the Li4(NH2)3BH4-NiO composites were compared. The absence of LiH as a reactant forced the system to follow another path, which involved the formation of an intermediate phase of composition Li3BN2H2 at the early stages of dehydrogenation and the end products LiNH2 and monoclinic Li3BN2. We showed evidence for the interaction between NiO and LiNH2 during heating and we propose that the presence of Li facilitates a NHx-rich environment and the Ni catalyst mediates the electron transfer to promote NHx coupling.Fil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Rönnebro, E. C. E.. Pacific Northwest National Laboratory; Estados UnidosFil: Arneodo Larochette, Pierre Paul. 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; ArgentinaFil: Gennari, Fabiana Cristina. 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; ArgentinaRoyal Society of Chemistry2017-12-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68249Amica, Guillermina; Rönnebro, E. C. E.; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 15-12-2017; 32047-320561463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/ 10.1039/C7CP04848Cinfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2017/CP/C7CP04848C#!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 Técnicas2025-09-29T09:44:37Zoai:ri.conicet.gov.ar:11336/68249instacron: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 09:44:37.497CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
title Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
spellingShingle Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
Amica, Guillermina
Hydrogen Storage
Lithium
Ni
title_short Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
title_full Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
title_fullStr Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
title_full_unstemmed Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
title_sort Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite
dc.creator.none.fl_str_mv Amica, Guillermina
Rönnebro, E. C. E.
Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author Amica, Guillermina
author_facet Amica, Guillermina
Rönnebro, E. C. E.
Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author_role author
author2 Rönnebro, E. C. E.
Arneodo Larochette, Pierre Paul
Gennari, Fabiana Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv Hydrogen Storage
Lithium
Ni
topic Hydrogen Storage
Lithium
Ni
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The effect of different metal oxides (Co3O4 and NiO) on the dehydrogenation reactions pathways of the Li4(NH2)3BH4-LiH composite was investigated. The additives were reduced to metallic species i.e. Co and Ni which act as catalysts by breaking the B-H bonds in the Li-B-N-H compounds. The onset decomposition temperature was lowered by 32 °C for the Ni-catalysed sample, which released 8.8 wt% hydrogen below 275°C. It was demonstrated that the decomposition of the doped composite followed a mechanism via LiNH2 and Li3BN2 formation as the end product with a strong reduction of NH3 emission. The sample could be partially re-hydrogenated (~1.5 wt%) due to the lithium imide/amide transformation. To understand the LiH role, the Li4(NH2)3BH4-LiH-NiO and the Li4(NH2)3BH4-NiO composites were compared. The absence of LiH as a reactant forced the system to follow another path, which involved the formation of an intermediate phase of composition Li3BN2H2 at the early stages of dehydrogenation and the end products LiNH2 and monoclinic Li3BN2. We showed evidence for the interaction between NiO and LiNH2 during heating and we propose that the presence of Li facilitates a NHx-rich environment and the Ni catalyst mediates the electron transfer to promote NHx coupling.
Fil: Amica, Guillermina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Rönnebro, E. C. E.. Pacific Northwest National Laboratory; Estados Unidos
Fil: Arneodo Larochette, Pierre Paul. 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
Fil: Gennari, Fabiana Cristina. 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
description The effect of different metal oxides (Co3O4 and NiO) on the dehydrogenation reactions pathways of the Li4(NH2)3BH4-LiH composite was investigated. The additives were reduced to metallic species i.e. Co and Ni which act as catalysts by breaking the B-H bonds in the Li-B-N-H compounds. The onset decomposition temperature was lowered by 32 °C for the Ni-catalysed sample, which released 8.8 wt% hydrogen below 275°C. It was demonstrated that the decomposition of the doped composite followed a mechanism via LiNH2 and Li3BN2 formation as the end product with a strong reduction of NH3 emission. The sample could be partially re-hydrogenated (~1.5 wt%) due to the lithium imide/amide transformation. To understand the LiH role, the Li4(NH2)3BH4-LiH-NiO and the Li4(NH2)3BH4-NiO composites were compared. The absence of LiH as a reactant forced the system to follow another path, which involved the formation of an intermediate phase of composition Li3BN2H2 at the early stages of dehydrogenation and the end products LiNH2 and monoclinic Li3BN2. We showed evidence for the interaction between NiO and LiNH2 during heating and we propose that the presence of Li facilitates a NHx-rich environment and the Ni catalyst mediates the electron transfer to promote NHx coupling.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-15
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/11336/68249
Amica, Guillermina; Rönnebro, E. C. E.; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 15-12-2017; 32047-32056
1463-9076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68249
identifier_str_mv Amica, Guillermina; Rönnebro, E. C. E.; Arneodo Larochette, Pierre Paul; Gennari, Fabiana Cristina; Clarifying the dehydrogenation pathway of catalysed Li4(NH2)3BH4-LiH composite; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 19; 15-12-2017; 32047-32056
1463-9076
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/C7CP04848C
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2017/CP/C7CP04848C#!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
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 13.070432

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