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dc.contributor.authorGroß, Andrea
dc.contributor.authorKremling, Michael
dc.contributor.authorMarr, Isabella
dc.contributor.authorKubinski, David
dc.contributor.authorVisser, Jacobus
dc.contributor.authorMoos, Ralf
dc.contributor.authorTuller, Harry L.
dc.date.accessioned2014-12-11T19:14:47Z
dc.date.available2014-12-11T19:14:47Z
dc.date.issued2013-04
dc.date.submitted2013-03
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/1721.1/92286
dc.description.abstractAn impedimetric NO[subscript x] dosimeter based on the NO[subscript x] sorption material KMnO[subscript 4] is proposed. In addition to its application as a low level NO[subscript x] dosimeter, KMnO[subscript 4] shows potential as a precious metal free lean NO[subscript x] trap material (LNT) for NO[subscript x] storage catalysts (NSC) enabling electrical in-situ diagnostics. With this dosimeter, low levels of NO and NO[subscript 2] exposure can be detected electrically as instantaneous values at 380 °C by progressive NO[subscript x] accumulation in the KMnO[subscript 4] based sensitive layer. The linear NO[subscript x] sensing characteristics are recovered periodically by heating to 650 °C or switching to rich atmospheres. Further insight into the NO[subscript x] sorption-dependent conductivity of the KMnO[subscript 4]-based material is obtained by the novel eTPD method that combines electrical characterization with classical temperature programmed desorption (TPD). The NO[subscript x] loading amount increases proportionally to the NO[subscript x] exposure time at sorption temperature. The cumulated NO[subscript x] exposure, as well as the corresponding NO[subscript x] loading state, can be detected linearly by electrical means in two modes: (1) time-continuously during the sorption interval including NO[subscript x] concentration information from the signal derivative or (2) during the short-term thermal NO[subscript x] release.en_US
dc.description.sponsorshipNational Science Foundation (U.S.). Division of Materials Research (Material World Network DMR-0908627)en_US
dc.language.isoen_US
dc.publisherMDPI AGen_US
dc.relation.isversionofhttp://dx.doi.org/10.3390/s130404428en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourceSensorsen_US
dc.titleDosimeter-Type NO[subscript x] Sensing Properties of KMnO[subscript 4] and Its Electrical Conductivity during Temperature Programmed Desorptionen_US
dc.typeArticleen_US
dc.identifier.citationGroß, Andrea, Michael Kremling, Isabella Marr, David Kubinski, Jacobus Visser, Harry Tuller, and Ralf Moos. “Dosimeter-Type NO[subscript x] Sensing Properties of KMnO[subscript 4] and Its Electrical Conductivity During Temperature Programmed Desorption.” Sensors 13, no. 4 (April 2013): 4428–4449.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Materials Science and Engineeringen_US
dc.contributor.mitauthorTuller, Harry L.en_US
dc.relation.journalSensorsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGroß, Andrea; Kremling, Michael; Marr, Isabella; Kubinski, David; Visser, Jacobus; Tuller, Harry; Moos, Ralfen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-8339-3222
mit.licensePUBLISHER_CCen_US


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