Grain boundary and grain interior conduction in γ′-Bi2MoO6

Impedance spectroscopy of fine grained (<10 μm) γ′- Bi2MoO6 samples, in the frequency range of 0.1 Hz-250 kHz, relevant to sensor applications, up to 800°C, has been used to characterize grain boundary and grain interior contributions to conduction. Above 500°C, the grain boundary contribution is...

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Detalhes bibliográficos
Autores: Vera, C. M. C., Aragon, Ricardo
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/82174
Acesso em linha:http://hdl.handle.net/11336/82174
Access Level:acceso abierto
Palavra-chave:Bismuth Molybdates
Conductimetric Chemical Sensors
Electrical Transport
Impedance Spectroscopy
Oxygen Ionic Conduction
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/82174
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spelling Grain boundary and grain interior conduction in γ′-Bi2MoO6Vera, C. M. C.Aragon, RicardoBismuth MolybdatesConductimetric Chemical SensorsElectrical TransportImpedance SpectroscopyOxygen Ionic Conductionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Impedance spectroscopy of fine grained (<10 μm) γ′- Bi2MoO6 samples, in the frequency range of 0.1 Hz-250 kHz, relevant to sensor applications, up to 800°C, has been used to characterize grain boundary and grain interior contributions to conduction. Above 500°C, the grain boundary contribution is no longer rate limiting and conduction is dominated by the grain interior component. The corresponding activation energies are 0.98 eV for grain boundary and 0.73 eV for grain interior components. The weak dependence of conductivity on oxygen partial pressure below 500°C can be attributed to electrode-electrolyte interface phenomena, whereas the robust response to ethanol is commensurate with changes in intrinsic ionic conductivity.Fil: Vera, C. M. C.. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaFil: Aragon, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Científicas y Técnicas de las Fuerzas Armadas. Centro de Investigaciones en Sólidos; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; ArgentinaElsevier Science2005-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82174Vera, C. M. C.; Aragon, Ricardo; Grain boundary and grain interior conduction in γ′-Bi2MoO6; Elsevier Science; Materials Science and Engineering B: Solid State Materials for Advanced Technology; 121; 1-2; 7-2005; 187-1910921-5107CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092151070500190Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.mseb.2005.03.006info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:18:13Zoai:ri.conicet.gov.ar:11336/82174instacron: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 14:18:13.616CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Grain boundary and grain interior conduction in γ′-Bi2MoO6
title Grain boundary and grain interior conduction in γ′-Bi2MoO6
spellingShingle Grain boundary and grain interior conduction in γ′-Bi2MoO6
Vera, C. M. C.
Bismuth Molybdates
Conductimetric Chemical Sensors
Electrical Transport
Impedance Spectroscopy
Oxygen Ionic Conduction
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
title_short Grain boundary and grain interior conduction in γ′-Bi2MoO6
title_full Grain boundary and grain interior conduction in γ′-Bi2MoO6
title_fullStr Grain boundary and grain interior conduction in γ′-Bi2MoO6
title_full_unstemmed Grain boundary and grain interior conduction in γ′-Bi2MoO6
title_sort Grain boundary and grain interior conduction in γ′-Bi2MoO6
dc.creator.none.fl_str_mv Vera, C. M. C.
Aragon, Ricardo
author Vera, C. M. C.
author_facet Vera, C. M. C.
Aragon, Ricardo
author_role author
author2 Aragon, Ricardo
author2_role author
dc.subject.none.fl_str_mv Bismuth Molybdates
Conductimetric Chemical Sensors
Electrical Transport
Impedance Spectroscopy
Oxygen Ionic Conduction
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
topic Bismuth Molybdates
Conductimetric Chemical Sensors
Electrical Transport
Impedance Spectroscopy
Oxygen Ionic Conduction
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
description Impedance spectroscopy of fine grained (<10 μm) γ′- Bi2MoO6 samples, in the frequency range of 0.1 Hz-250 kHz, relevant to sensor applications, up to 800°C, has been used to characterize grain boundary and grain interior contributions to conduction. Above 500°C, the grain boundary contribution is no longer rate limiting and conduction is dominated by the grain interior component. The corresponding activation energies are 0.98 eV for grain boundary and 0.73 eV for grain interior components. The weak dependence of conductivity on oxygen partial pressure below 500°C can be attributed to electrode-electrolyte interface phenomena, whereas the robust response to ethanol is commensurate with changes in intrinsic ionic conductivity.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
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/11336/82174
Vera, C. M. C.; Aragon, Ricardo; Grain boundary and grain interior conduction in γ′-Bi2MoO6; Elsevier Science; Materials Science and Engineering B: Solid State Materials for Advanced Technology; 121; 1-2; 7-2005; 187-191
0921-5107
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82174
identifier_str_mv Vera, C. M. C.; Aragon, Ricardo; Grain boundary and grain interior conduction in γ′-Bi2MoO6; Elsevier Science; Materials Science and Engineering B: Solid State Materials for Advanced Technology; 121; 1-2; 7-2005; 187-191
0921-5107
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/pii/S092151070500190X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mseb.2005.03.006
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 Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 15.812429

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