Simple Route to Obtain Nanostructured CeO2 Microspheres and CO Gas Sensing Performance

Hdl Handle:
http://hdl.handle.net/11285/622455
Title:
Simple Route to Obtain Nanostructured CeO2 Microspheres and CO Gas Sensing Performance
Authors:
López-Mena, Edgar R; Michel, Carlos R; Martínez-Preciado, Alma H; Elías-Zuñiga, Alex; López-Mena, Edgar R; Michel, Carlos R; Martínez-Preciado, Alma H; Elías-Zuñiga, Alex
Issue Date:
2017-03-06
Abstract:
Abstract In this work, nanostructured CeO2 microspheres with high surface area and mesoporosity were prepared by the coprecipitation method, in absence of a template. The reaction between cerium nitrate and concentrated formic acid produced cerium formate, at room temperature. Further, calcination at 300 °C yielded single-phase CeO2 microspheres, with a diameter in the range 0.5–2.6 μm, the surface of these microspheres is completely nanostructured (diameter about 30–90 nm). CeO2 microspheres were used to fabricate a sensor device, and it was tested for intermediate CO gas concentrations (200–800 ppm). The detection of 200 ppm carbon monoxide was observed at 275 °C, with a response time of 9 s, using an applied frequency of 100 kHz. The detection of changes on the CO gas concentration was studied at different temperatures and applied frequencies. The results revealed a reproducible and stable gas sensing response.
Type:
Journal Article
Appears in Collections:
Springer/BMC

Full metadata record

DC FieldValue Language
dc.contributor.authorLópez-Mena, Edgar R-
dc.contributor.authorMichel, Carlos R-
dc.contributor.authorMartínez-Preciado, Alma H-
dc.contributor.authorElías-Zuñiga, Alex-
dc.contributor.authorLópez-Mena, Edgar Res
dc.contributor.authorMichel, Carlos Res
dc.contributor.authorMartínez-Preciado, Alma Hes
dc.contributor.authorElías-Zuñiga, Alexes
dc.date.accessioned2017-05-05T21:20:26Z-
dc.date.available2017-05-05T21:20:26Z-
dc.date.issued2017-03-06-
dc.identifier.citationNanoscale Research Letters. 2017 Mar 06;12(1):169-
dc.identifier.urihttp://dx.doi.org/10.1186/s11671-017-1951-x-
dc.identifier.urihttp://hdl.handle.net/11285/622455-
dc.description.abstractAbstract In this work, nanostructured CeO2 microspheres with high surface area and mesoporosity were prepared by the coprecipitation method, in absence of a template. The reaction between cerium nitrate and concentrated formic acid produced cerium formate, at room temperature. Further, calcination at 300 °C yielded single-phase CeO2 microspheres, with a diameter in the range 0.5–2.6 μm, the surface of these microspheres is completely nanostructured (diameter about 30–90 nm). CeO2 microspheres were used to fabricate a sensor device, and it was tested for intermediate CO gas concentrations (200–800 ppm). The detection of 200 ppm carbon monoxide was observed at 275 °C, with a response time of 9 s, using an applied frequency of 100 kHz. The detection of changes on the CO gas concentration was studied at different temperatures and applied frequencies. The results revealed a reproducible and stable gas sensing response.-
dc.rightsOpen Access-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleSimple Route to Obtain Nanostructured CeO2 Microspheres and CO Gas Sensing Performance-
dc.typeJournal Article-
dc.language.rfc3066en-
dc.rights.holderThe Author(s).-
dc.date.updated2017-05-05T13:59:04Z-
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