Surface segregation and consequent so2 sensor response in SnO2-NiO

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dc.contributor.authorHIDALGO, P.
dc.contributor.authorCASTRO, R. H. R.
dc.contributor.authorCOELHO, A. V. C.
dc.contributor.authorGOUVEA, D.
dc.date.accessioned2022-01-12T22:05:49Z
dc.date.available2022-01-12T22:05:49Z
dc.date.issued2005-08-09
dc.description.abstractMany studies have been carried out concerning the development of SO 2 sensors to detect and avoid its health prejudicial effects. However, there is still a lack of reliable, high-speed-response sensors that work at room temperature. In this work, the segregation of Ni in the SnO 2-NiO system is used to obtain a rapid SO2 sensor response. Segregation and its structure consequences were studied by electron dispersive spectroscopy, infrared spectroscopy, and high-resolution transmission electron microscopy in nanopowders of SnO2-NiO with different compositions prepared by a polymeric precursor method. The sensor activity of SnO2-1 mol % Ni was studied and a linear calibration curve was formed with a maximum limit response of 32 ppm SO2. © 2005 American Chemical Society.
dc.description.firstpage4149
dc.description.issuenumber16
dc.description.lastpage4153
dc.description.volume17
dc.identifier.citationHIDALGO, P.; CASTRO, R. H. R.; COELHO, A. V. C.; GOUVEA, D. Surface segregation and consequent so2 sensor response in SnO2-NiO. Chemistry of Materials, v.17, n. 16, p. 4149 - 4153, August, 2005.
dc.identifier.doi10.1021/cm049020g
dc.identifier.issn0897-4756
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/4366
dc.relation.ispartofChemistry of Materials
dc.rightsAcesso Restrito
dc.titleSurface segregation and consequent so2 sensor response in SnO2-NiO
dc.typeArtigo
fei.scopus.citations115
fei.scopus.eid2-s2.0-23844508212
fei.scopus.subjectAbsorber films
fei.scopus.subjectMatrix oxides
fei.scopus.subjectSurface contamination
fei.scopus.subjectSurface segregation
fei.scopus.updated2024-10-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=23844508212&origin=inward
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