Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites

It has been suggested from molecular dynamics simulations that low-coordination-number sites are produced at a sliding metal–metal interface, but, because of their instability, they may rapidly relax to increase their coordination number. The possible presence of such low-coordination sites on the s...

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Autores: Miller, Brendan Paul, Furlong, Octavio Javier, Tysoe, Wilfred T.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/5669
Acceso en línea:http://hdl.handle.net/11336/5669
Access Level:acceso abierto
Palabra clave:Copper Foils
1-Alkenes
Friction
Auger Analysis
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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spelling Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface SitesMiller, Brendan PaulFurlong, Octavio JavierTysoe, Wilfred T.Copper Foils1-AlkenesFrictionAuger Analysishttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1It has been suggested from molecular dynamics simulations that low-coordination-number sites are produced at a sliding metal–metal interface, but, because of their instability, they may rapidly relax to increase their coordination number. The possible presence of such low-coordination sites on the surface is tested by exploiting the observation that the desorption temperatures of 1-alkenes on copper increase with both the number of carbons atoms in the 1-alkenes and the surface roughness. Thus, 1-alkenes desorb from a Cu(111) single crystal, with relatively few low-coordination sites, at temperatures between 60 and 100 K lower than from a polycrystalline copper foil. The decrease in friction after impinging a flux of various 1-alkenes on a copper foil, while rubbing in an ultrahigh vacuum tribometer, correlates very well with the corresponding 1-alkene coverages on a copper foil, estimated using the desorption kinetics. This suggests either that rubbing does not result in the formation of lower-coordination sites or that they relax sufficiently rapidly that they do not influence the surface chemistry of 1-alkenes. Surface analyses indicate that shear at the interface causes carbon to diffuse into the subsurface region to form a tribofilm.Fil: Miller, Brendan Paul. University of Wisconsin–Milwaukee. Department of Chemistry and Laboratory for Surface Studies; Estados UnidosFil: Furlong, Octavio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Tysoe, Wilfred T.. University of Wisconsin–Milwaukee. Department of Chemistry and Laboratory for Surface Studies; Estados UnidosSpringer2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5669Miller, Brendan Paul; Furlong, Octavio Javier; Tysoe, Wilfred T.; Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites; Springer; Tribology Letters; 51; 3; 6-2013; 357-3631023-8883enginfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs11249-013-0168-0info:eu-repo/semantics/altIdentifier/doi/10.1007/s11249-013-0168-0info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:33:23Zoai:ri.conicet.gov.ar:11336/5669instacron: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:34982024-05-08 13:33:24.057CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
title Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
spellingShingle Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
Miller, Brendan Paul
Copper Foils
1-Alkenes
Friction
Auger Analysis
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
title_full Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
title_fullStr Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
title_full_unstemmed Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
title_sort Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites
dc.creator.none.fl_str_mv Miller, Brendan Paul
Furlong, Octavio Javier
Tysoe, Wilfred T.
author Miller, Brendan Paul
author_facet Miller, Brendan Paul
Furlong, Octavio Javier
Tysoe, Wilfred T.
author_role author
author2 Furlong, Octavio Javier
Tysoe, Wilfred T.
author2_role author
author
dc.subject.none.fl_str_mv Copper Foils
1-Alkenes
Friction
Auger Analysis
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Copper Foils
1-Alkenes
Friction
Auger Analysis
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description It has been suggested from molecular dynamics simulations that low-coordination-number sites are produced at a sliding metal–metal interface, but, because of their instability, they may rapidly relax to increase their coordination number. The possible presence of such low-coordination sites on the surface is tested by exploiting the observation that the desorption temperatures of 1-alkenes on copper increase with both the number of carbons atoms in the 1-alkenes and the surface roughness. Thus, 1-alkenes desorb from a Cu(111) single crystal, with relatively few low-coordination sites, at temperatures between 60 and 100 K lower than from a polycrystalline copper foil. The decrease in friction after impinging a flux of various 1-alkenes on a copper foil, while rubbing in an ultrahigh vacuum tribometer, correlates very well with the corresponding 1-alkene coverages on a copper foil, estimated using the desorption kinetics. This suggests either that rubbing does not result in the formation of lower-coordination sites or that they relax sufficiently rapidly that they do not influence the surface chemistry of 1-alkenes. Surface analyses indicate that shear at the interface causes carbon to diffuse into the subsurface region to form a tribofilm.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
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/11336/5669
Miller, Brendan Paul; Furlong, Octavio Javier; Tysoe, Wilfred T.; Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites; Springer; Tribology Letters; 51; 3; 6-2013; 357-363
1023-8883
url http://hdl.handle.net/11336/5669
identifier_str_mv Miller, Brendan Paul; Furlong, Octavio Javier; Tysoe, Wilfred T.; Tribological Properties of 1-Alkenes on Copper Foils: Effect of Low-Coordination Surface Sites; Springer; Tribology Letters; 51; 3; 6-2013; 357-363
1023-8883
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs11249-013-0168-0
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11249-013-0168-0
info:eu-repo/semantics/altIdentifier/doi/
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 Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15,811543

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