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

dc.creatorEDGAR RENE LOPEZ MENA;44893
dc.creatorALEX ELIAS ZUÑIGA;19150
dc.creatorEDGAR RENE LOPEZ MENA;44893es
dc.creatorALEX ELIAS ZUÑIGA;19150es
dc.date2017
dc.date.accessioned2018-10-18T21:51:06Z
dc.date.available2018-10-18T21:51:06Z
dc.identifier.issn19317573
dc.identifier.doi10.1186/s11671-017-1951-x
dc.identifier.urihttp://hdl.handle.net/11285/630505
dc.descriptionIn 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. © 2017, The Author(s).
dc.languageeng
dc.publisherSpringer New York LLC
dc.relationhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85014636197&doi=10.1186%2fs11671-017-1951-x&partnerID=40&md5=4d6e4a010ad8d4b7bb36a2c7ad87c88d
dc.relationInvestigadores
dc.relationEstudiantes
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceNanoscale Research Letters
dc.subjectCarbon
dc.subjectCarbon monoxide
dc.subjectCerium
dc.subjectChemical detection
dc.subjectChemical sensors
dc.subjectCoprecipitation
dc.subjectGas detectors
dc.subjectGases
dc.subjectCeO<sub>2</sub>
dc.subjectCerium nitrate
dc.subjectCoprecipitation method
dc.subjectDetection of changes
dc.subjectGas concentration
dc.subjectGas sensing response
dc.subjectHigh surface area
dc.subjectNano-structured
dc.subjectMicrospheres
dc.subject.classification7 INGENIERÍA Y TECNOLOGÍA
dc.titleSimple Route to Obtain Nanostructured CeO2 Microspheres and CO Gas Sensing Performance
dc.typeArtículo
dc.identifier.volume12
dc.identifier.issue1
refterms.dateFOA2018-10-18T21:51:06Z


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