Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites

Autores
Fuster, Valeria de Los Angeles; Castro, Facundo; Troiani, Horacio Esteban; Urretavizcaya, Guillermina
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work magnesium hydrogen sorption kinetics of different graphite nanocomposites prepared by low-energy ball milling is reported. A comparison is made between kinetic performance in a Sievert-type apparatus of pure Mg, Mg+xG (x=5, 10, 20 wt.%, G=graphite) composites and a mixture obtained by adding 10 wt.% G to MgH2 already synthesized via reactive mechanical milling. Moreover, the influence of two types of graphite morphology (flakes and fine powder) is evaluated. In addition, thermal dehydriding properties are analyzed by differential scanning calorimetry (DSC) measurements and morphological and microstructural characteristics are determined by X-ray diffraction (XRD), laser granulometry, BET surface analysis as well as scanning and transmission electron microscopies (SEM and TEM) for every material under study. Graphite catalytic effect is independent of its morphology and is more pronounced when the additive is incorporated from the beginning of milling, as well as in a higher weight proportion. Furthermore, the additive preserves material microstructure during a few hydriding and dehydriding cycles, i.e. particle size distribution and crystallite enlargement, and as a result kinetic properties remain practically unchanged.
Fil: Fuster, Valeria de Los Angeles. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Castro, Facundo. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Troiani, Horacio Esteban. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Urretavizcaya, Guillermina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Materia
METAL HYDRIDE
MAGNESIUM
VOLUMETRIC CYCLES
MECHANICAL ALLOYING
THERMAL ANALYSIS
GRAPHITE
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:11336/281372
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/281372
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C compositesFuster, Valeria de Los AngelesCastro, FacundoTroiani, Horacio EstebanUrretavizcaya, GuillerminaMETAL HYDRIDEMAGNESIUMVOLUMETRIC CYCLESMECHANICAL ALLOYINGTHERMAL ANALYSISGRAPHITEhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2In the present work magnesium hydrogen sorption kinetics of different graphite nanocomposites prepared by low-energy ball milling is reported. A comparison is made between kinetic performance in a Sievert-type apparatus of pure Mg, Mg+xG (x=5, 10, 20 wt.%, G=graphite) composites and a mixture obtained by adding 10 wt.% G to MgH2 already synthesized via reactive mechanical milling. Moreover, the influence of two types of graphite morphology (flakes and fine powder) is evaluated. In addition, thermal dehydriding properties are analyzed by differential scanning calorimetry (DSC) measurements and morphological and microstructural characteristics are determined by X-ray diffraction (XRD), laser granulometry, BET surface analysis as well as scanning and transmission electron microscopies (SEM and TEM) for every material under study. Graphite catalytic effect is independent of its morphology and is more pronounced when the additive is incorporated from the beginning of milling, as well as in a higher weight proportion. Furthermore, the additive preserves material microstructure during a few hydriding and dehydriding cycles, i.e. particle size distribution and crystallite enlargement, and as a result kinetic properties remain practically unchanged.Fil: Fuster, Valeria de Los Angeles. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; ArgentinaFil: Castro, Facundo. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Troiani, Horacio Esteban. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaFil: Urretavizcaya, Guillermina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaPergamon-Elsevier Science Ltd2011-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/281372Fuster, Valeria de Los Angeles; Castro, Facundo; Troiani, Horacio Esteban; Urretavizcaya, Guillermina; Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 7-2011; 9051-90610360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.04.153info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:29:26Zoai:ri.conicet.gov.ar:11336/281372instacron: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:34982026-02-26 10:29:27.13CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
title Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
spellingShingle Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
Fuster, Valeria de Los Angeles
METAL HYDRIDE
MAGNESIUM
VOLUMETRIC CYCLES
MECHANICAL ALLOYING
THERMAL ANALYSIS
GRAPHITE
title_short Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
title_full Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
title_fullStr Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
title_full_unstemmed Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
title_sort Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites
dc.creator.none.fl_str_mv Fuster, Valeria de Los Angeles
Castro, Facundo
Troiani, Horacio Esteban
Urretavizcaya, Guillermina
author Fuster, Valeria de Los Angeles
author_facet Fuster, Valeria de Los Angeles
Castro, Facundo
Troiani, Horacio Esteban
Urretavizcaya, Guillermina
author_role author
author2 Castro, Facundo
Troiani, Horacio Esteban
Urretavizcaya, Guillermina
author2_role author
author
author
dc.subject.none.fl_str_mv METAL HYDRIDE
MAGNESIUM
VOLUMETRIC CYCLES
MECHANICAL ALLOYING
THERMAL ANALYSIS
GRAPHITE
topic METAL HYDRIDE
MAGNESIUM
VOLUMETRIC CYCLES
MECHANICAL ALLOYING
THERMAL ANALYSIS
GRAPHITE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In the present work magnesium hydrogen sorption kinetics of different graphite nanocomposites prepared by low-energy ball milling is reported. A comparison is made between kinetic performance in a Sievert-type apparatus of pure Mg, Mg+xG (x=5, 10, 20 wt.%, G=graphite) composites and a mixture obtained by adding 10 wt.% G to MgH2 already synthesized via reactive mechanical milling. Moreover, the influence of two types of graphite morphology (flakes and fine powder) is evaluated. In addition, thermal dehydriding properties are analyzed by differential scanning calorimetry (DSC) measurements and morphological and microstructural characteristics are determined by X-ray diffraction (XRD), laser granulometry, BET surface analysis as well as scanning and transmission electron microscopies (SEM and TEM) for every material under study. Graphite catalytic effect is independent of its morphology and is more pronounced when the additive is incorporated from the beginning of milling, as well as in a higher weight proportion. Furthermore, the additive preserves material microstructure during a few hydriding and dehydriding cycles, i.e. particle size distribution and crystallite enlargement, and as a result kinetic properties remain practically unchanged.
Fil: Fuster, Valeria de Los Angeles. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Castro, Facundo. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Troiani, Horacio Esteban. Universidad Nacional de Cuyo; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Fil: Urretavizcaya, Guillermina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
description In the present work magnesium hydrogen sorption kinetics of different graphite nanocomposites prepared by low-energy ball milling is reported. A comparison is made between kinetic performance in a Sievert-type apparatus of pure Mg, Mg+xG (x=5, 10, 20 wt.%, G=graphite) composites and a mixture obtained by adding 10 wt.% G to MgH2 already synthesized via reactive mechanical milling. Moreover, the influence of two types of graphite morphology (flakes and fine powder) is evaluated. In addition, thermal dehydriding properties are analyzed by differential scanning calorimetry (DSC) measurements and morphological and microstructural characteristics are determined by X-ray diffraction (XRD), laser granulometry, BET surface analysis as well as scanning and transmission electron microscopies (SEM and TEM) for every material under study. Graphite catalytic effect is independent of its morphology and is more pronounced when the additive is incorporated from the beginning of milling, as well as in a higher weight proportion. Furthermore, the additive preserves material microstructure during a few hydriding and dehydriding cycles, i.e. particle size distribution and crystallite enlargement, and as a result kinetic properties remain practically unchanged.
publishDate 2011
dc.date.none.fl_str_mv 2011-07
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/11336/281372
Fuster, Valeria de Los Angeles; Castro, Facundo; Troiani, Horacio Esteban; Urretavizcaya, Guillermina; Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 7-2011; 9051-9061
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/281372
identifier_str_mv Fuster, Valeria de Los Angeles; Castro, Facundo; Troiani, Horacio Esteban; Urretavizcaya, Guillermina; Characterization of graphite catalytic effect in reactively ball-milled MgH 2 –C and Mg–C composites; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 7-2011; 9051-9061
0360-3199
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.04.153
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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 12.665996

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