Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis

Autores
Kreysa, G.; Gómez, J.; Baró, A.; Arvia, Alejandro Jorge
Año de publicación
1989
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos50Ni25Si15Bu10) and G14 (Fe60Co20Si10B10), are studied at the gm scale with a conventional SEM, and at the nm scale with the STM. Both untreated specimens as well as those employed as electrodes for a relatively prolonged time exhibit the same microstructure with amorphous and crystalline surface regions. The microcrystallite reduced size structure, probably involving a very compact structure, appears to be of the greatest importance concerning the electrocatalytic activity of these materials.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
water
scanning tunneling microscopy
surface
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127148
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/127148
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysisKreysa, G.Gómez, J.Baró, A.Arvia, Alejandro JorgeCiencias ExactasQuímicawaterscanning tunneling microscopysurfaceThe surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos<sub>50</sub>Ni<sub>25</sub>Si<sub>15</sub>Bu<sub>10</sub>) and G14 (Fe<sub>60</sub>Co<sub>20</sub>Si<sub>10</sub>B<sub>10</sub>), are studied at the gm scale with a conventional SEM, and at the nm scale with the STM. Both untreated specimens as well as those employed as electrodes for a relatively prolonged time exhibit the same microstructure with amorphous and crystalline surface regions. The microcrystallite reduced size structure, probably involving a very compact structure, appears to be of the greatest importance concerning the electrocatalytic activity of these materials.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1989info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf67-75http://sedici.unlp.edu.ar/handle/10915/127148enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0022072889801809info:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(89)80180-9info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:02:49Zoai:sedici.unlp.edu.ar:10915/127148Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:49.611SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
title Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
spellingShingle Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
Kreysa, G.
Ciencias Exactas
Química
water
scanning tunneling microscopy
surface
title_short Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
title_full Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
title_fullStr Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
title_full_unstemmed Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
title_sort Scanning tunneling microscopy of amorphous alloy electrocatalysts for water electrolysis
dc.creator.none.fl_str_mv Kreysa, G.
Gómez, J.
Baró, A.
Arvia, Alejandro Jorge
author Kreysa, G.
author_facet Kreysa, G.
Gómez, J.
Baró, A.
Arvia, Alejandro Jorge
author_role author
author2 Gómez, J.
Baró, A.
Arvia, Alejandro Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
water
scanning tunneling microscopy
surface
topic Ciencias Exactas
Química
water
scanning tunneling microscopy
surface
dc.description.none.fl_txt_mv The surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos<sub>50</sub>Ni<sub>25</sub>Si<sub>15</sub>Bu<sub>10</sub>) and G14 (Fe<sub>60</sub>Co<sub>20</sub>Si<sub>10</sub>B<sub>10</sub>), are studied at the gm scale with a conventional SEM, and at the nm scale with the STM. Both untreated specimens as well as those employed as electrodes for a relatively prolonged time exhibit the same microstructure with amorphous and crystalline surface regions. The microcrystallite reduced size structure, probably involving a very compact structure, appears to be of the greatest importance concerning the electrocatalytic activity of these materials.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The surface topography of amorphous metals useful as electrocatalysts in water electrolysis, denoted as G16 (Cos<sub>50</sub>Ni<sub>25</sub>Si<sub>15</sub>Bu<sub>10</sub>) and G14 (Fe<sub>60</sub>Co<sub>20</sub>Si<sub>10</sub>B<sub>10</sub>), are studied at the gm scale with a conventional SEM, and at the nm scale with the STM. Both untreated specimens as well as those employed as electrodes for a relatively prolonged time exhibit the same microstructure with amorphous and crystalline surface regions. The microcrystallite reduced size structure, probably involving a very compact structure, appears to be of the greatest importance concerning the electrocatalytic activity of these materials.
publishDate 1989
dc.date.none.fl_str_mv 1989
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/127148
url http://sedici.unlp.edu.ar/handle/10915/127148
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/0022072889801809
info:eu-repo/semantics/altIdentifier/issn/0022-0728
info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(89)80180-9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
67-75
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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