Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials

Autores
Meyer, Marcos; Mendoza Zélis, Luis Alejandro
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Recent research on coevaporated thin gradient films Mg1−x−zNixTiz have detected, using optical hydrogenography, a compositional region centered around Mg69Ni26Ti5, with low absolute values of the hydride formation enthalpy. These destabilized hydrides would present then sorption kinetics more favorable for their use as hydrogen reservoirs. In order to check if these relevant properties extend to massive samples we attempted an investigation on mechanically alloyed powder mixtures Mg1−x−zNixTiz of similar composition and also on mixtures Mg1−x−zFexTiz, with Fe instead of Ni. Thus, powder mixtures of nominal composition: Mg69M26Ti5, Mg64M26Ti10 and Mg64M31Ti5 (M = Ni, Fe) were milled in a H2 ambient till a steady state, with no further H2 absorption, was attained and the hydriding kinetics was determined from the H2 intake. Each hydrided sample was discharged by increasing the temperature at a given starting H2 pressure and recharged by decreasing the temperature under the same conditions. The resulting P vs T curves were analyzed to extract approximate values of the equilibrium (T,P) data for H2 desorption and absorption. Before and after their cycling in H2 the samples were characterized by X ray diffraction and those containing Fe, by Mössbauer spectroscopy. The results are analyzed in connection with possible mechanisms for the transition metals catalytic action and the influence of the sample microstructure.
Fil: Meyer, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Fil: Mendoza Zélis, Luis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Materia
Hydrogen storage
Mechanical alloying
Metallic hydrides
Microstructure
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/268556
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materialsMeyer, MarcosMendoza Zélis, Luis AlejandroHydrogen storageMechanical alloyingMetallic hydridesMicrostructurehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Recent research on coevaporated thin gradient films Mg1−x−zNixTiz have detected, using optical hydrogenography, a compositional region centered around Mg69Ni26Ti5, with low absolute values of the hydride formation enthalpy. These destabilized hydrides would present then sorption kinetics more favorable for their use as hydrogen reservoirs. In order to check if these relevant properties extend to massive samples we attempted an investigation on mechanically alloyed powder mixtures Mg1−x−zNixTiz of similar composition and also on mixtures Mg1−x−zFexTiz, with Fe instead of Ni. Thus, powder mixtures of nominal composition: Mg69M26Ti5, Mg64M26Ti10 and Mg64M31Ti5 (M = Ni, Fe) were milled in a H2 ambient till a steady state, with no further H2 absorption, was attained and the hydriding kinetics was determined from the H2 intake. Each hydrided sample was discharged by increasing the temperature at a given starting H2 pressure and recharged by decreasing the temperature under the same conditions. The resulting P vs T curves were analyzed to extract approximate values of the equilibrium (T,P) data for H2 desorption and absorption. Before and after their cycling in H2 the samples were characterized by X ray diffraction and those containing Fe, by Mössbauer spectroscopy. The results are analyzed in connection with possible mechanisms for the transition metals catalytic action and the influence of the sample microstructure.Fil: Meyer, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; ArgentinaFil: Mendoza Zélis, Luis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; ArgentinaPergamon-Elsevier Science Ltd2012-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/268556Meyer, Marcos; Mendoza Zélis, Luis Alejandro; Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 37; 19; 10-2012; 14864-148690360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319911027923info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.12.099info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:49Zoai:ri.conicet.gov.ar:11336/268556instacron: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 09:53:50.099CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
title Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
spellingShingle Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
Meyer, Marcos
Hydrogen storage
Mechanical alloying
Metallic hydrides
Microstructure
title_short Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
title_full Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
title_fullStr Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
title_full_unstemmed Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
title_sort Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials
dc.creator.none.fl_str_mv Meyer, Marcos
Mendoza Zélis, Luis Alejandro
author Meyer, Marcos
author_facet Meyer, Marcos
Mendoza Zélis, Luis Alejandro
author_role author
author2 Mendoza Zélis, Luis Alejandro
author2_role author
dc.subject.none.fl_str_mv Hydrogen storage
Mechanical alloying
Metallic hydrides
Microstructure
topic Hydrogen storage
Mechanical alloying
Metallic hydrides
Microstructure
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recent research on coevaporated thin gradient films Mg1−x−zNixTiz have detected, using optical hydrogenography, a compositional region centered around Mg69Ni26Ti5, with low absolute values of the hydride formation enthalpy. These destabilized hydrides would present then sorption kinetics more favorable for their use as hydrogen reservoirs. In order to check if these relevant properties extend to massive samples we attempted an investigation on mechanically alloyed powder mixtures Mg1−x−zNixTiz of similar composition and also on mixtures Mg1−x−zFexTiz, with Fe instead of Ni. Thus, powder mixtures of nominal composition: Mg69M26Ti5, Mg64M26Ti10 and Mg64M31Ti5 (M = Ni, Fe) were milled in a H2 ambient till a steady state, with no further H2 absorption, was attained and the hydriding kinetics was determined from the H2 intake. Each hydrided sample was discharged by increasing the temperature at a given starting H2 pressure and recharged by decreasing the temperature under the same conditions. The resulting P vs T curves were analyzed to extract approximate values of the equilibrium (T,P) data for H2 desorption and absorption. Before and after their cycling in H2 the samples were characterized by X ray diffraction and those containing Fe, by Mössbauer spectroscopy. The results are analyzed in connection with possible mechanisms for the transition metals catalytic action and the influence of the sample microstructure.
Fil: Meyer, Marcos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Fil: Mendoza Zélis, Luis Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
description Recent research on coevaporated thin gradient films Mg1−x−zNixTiz have detected, using optical hydrogenography, a compositional region centered around Mg69Ni26Ti5, with low absolute values of the hydride formation enthalpy. These destabilized hydrides would present then sorption kinetics more favorable for their use as hydrogen reservoirs. In order to check if these relevant properties extend to massive samples we attempted an investigation on mechanically alloyed powder mixtures Mg1−x−zNixTiz of similar composition and also on mixtures Mg1−x−zFexTiz, with Fe instead of Ni. Thus, powder mixtures of nominal composition: Mg69M26Ti5, Mg64M26Ti10 and Mg64M31Ti5 (M = Ni, Fe) were milled in a H2 ambient till a steady state, with no further H2 absorption, was attained and the hydriding kinetics was determined from the H2 intake. Each hydrided sample was discharged by increasing the temperature at a given starting H2 pressure and recharged by decreasing the temperature under the same conditions. The resulting P vs T curves were analyzed to extract approximate values of the equilibrium (T,P) data for H2 desorption and absorption. Before and after their cycling in H2 the samples were characterized by X ray diffraction and those containing Fe, by Mössbauer spectroscopy. The results are analyzed in connection with possible mechanisms for the transition metals catalytic action and the influence of the sample microstructure.
publishDate 2012
dc.date.none.fl_str_mv 2012-10
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/11336/268556
Meyer, Marcos; Mendoza Zélis, Luis Alejandro; Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 37; 19; 10-2012; 14864-14869
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/268556
identifier_str_mv Meyer, Marcos; Mendoza Zélis, Luis Alejandro; Mechanically alloyed Mg–Ni–Ti and Mg–Fe–Ti powders as hydrogen storage materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 37; 19; 10-2012; 14864-14869
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/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319911027923
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.12.099
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv 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 13.13397

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