Relationship between surface segregation and rapid propane electrical response in Cd-doped SnO2 nanomaterials

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dc.contributor.authorCastro R. H. R.
dc.contributor.authorHidalgo P.
dc.contributor.authorPerez H.E.M.
dc.contributor.authorRamirez-Fernandez F.J.
dc.contributor.authorGouvea D.
dc.date.accessioned2022-01-12T22:04:57Z
dc.date.available2022-01-12T22:04:57Z
dc.date.issued2008-07-05
dc.description.abstractControlling the surface properties of nanoparticles using ionic dopants prone to be surface segregated has emerged as an interesting tool for obtaining highly selective and sensitive sensors. In this work, the surface segregation of Cd cations on SnO2 nanopowders prepared by the Pechini's method was studied by infrared spectroscopy, X-ray diffraction, and specific surface area analysis. We observed that the surface chemistry modifications caused by the surface segregation of Cd and the large specific surface area were closely responsible for a rapid and regular electrical response of 5 mol% Cd-doped SnO2 films to 100 ppm propane and NOx diluted in dry air at relatively low temperature (100 °C). © 2008 Elsevier B.V. All rights reserved.
dc.description.firstpage263
dc.description.issuenumber1
dc.description.lastpage269
dc.description.volume133
dc.identifier.citationCASTRO, R. H. R.; HIDALGO, P.; PEREZ, H. E. M.; RAMIREZ-FERNANDEZ, F. J.; GOUVEA, D. Relationship between surface segregation and rapid propane electrical response in Cd-doped SnO2 nanomaterials. Sensors and Actuators, B: Chemical, v. 133, n. 1, p. 263-269, Jul. 2008.
dc.identifier.doi10.1016/j.snb.2008.02.021
dc.identifier.issn0925-4005
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4306
dc.relation.ispartofSensors and Actuators, B: Chemical
dc.rightsAcesso Restrito
dc.subject.otherlanguageNanoparticle
dc.subject.otherlanguagePropane
dc.subject.otherlanguageSensor
dc.subject.otherlanguageSurface segregation
dc.subject.otherlanguageTin oxide
dc.titleRelationship between surface segregation and rapid propane electrical response in Cd-doped SnO2 nanomaterials
dc.typeArtigo
fei.scopus.citations25
fei.scopus.eid2-s2.0-46449101238
fei.scopus.subject(1 1 0) surface
fei.scopus.subject(PL) properties
fei.scopus.subjectElectrical responses
fei.scopus.subjectSegregation (beneficiation)
fei.scopus.subjectsensitive sensors
fei.scopus.updated2024-12-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=46449101238&origin=inward
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