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dc.creatorKalyakin, A.en
dc.creatorFadeyev, G.en
dc.creatorDemin, A.en
dc.creatorGorbova, E.en
dc.creatorBrouzgou, A.en
dc.creatorVolkov, A.en
dc.creatorTsiakaras, P.en
dc.date.accessioned2015-11-23T10:31:13Z
dc.date.available2015-11-23T10:31:13Z
dc.date.issued2014
dc.identifier10.1016/j.electacta.2014.06.146
dc.identifier.issn0013-4686
dc.identifier.urihttp://hdl.handle.net/11615/28806
dc.description.abstractAmperometric hydrogen sensors based on proton-conducting solid electrolytes of La0.95Sr0.05YO3, CaTi0.95Sc0.05O3 and CaZr0.9Sc0.1O3 compositions are prepared and investigated in the present work. The influence of the sensor design on its own characteristics is also examined. It is shown that a solid electrolyte used in the form of discs with cavities significantly simplifies the design of this type of sensors. A sensor based on La0.95Sr0.05YO3 electrolyte with fully sealed junction between discs is suitable for the analysis of mixtures with high H-2 content. It is found that by increasing H2 content from 10 to 98% the limiting current increases from 0.25 to 2.25 mA (at 750 mV). It is also found that the sensor based on La0.95Sr0.05YO3 with discs sealed in two points as well as the sensor based on CaZr0.9Sc0.1O3 with fully sealed junction are suitable for the analysis of mixtures with low H-2 content (0.5-2%). For the above cases, the limiting current at 2% H-2 reaches 3.5 and 0.5 mA (at 750 mV), respectively. CaTi0.95Sc0.05O3 is not suitable to be used as a hydrogen sensor. In all the examined systems, steam content does not affect sensors' behavior and high operating temperatures (850 degrees C) increase the range of sensors' hydrogen measuring concentration capacity. (C) 2014 Elsevier Ltd. All rights reserved.en
dc.sourceElectrochimica Actaen
dc.source.uri<Go to ISI>://WOS:000343022900016
dc.subjectProton-conducting solid electrolytesen
dc.subjectLa0.95Sr0.05YO3en
dc.subjectCaTi0.95Sc0.05O3en
dc.subjectCaZr0.9Sc0.1O3en
dc.subjectAmperometric hydrogen sensorsen
dc.subjectYTTRIA-STABILIZED ZIRCONIAen
dc.subjectIONIC-ELECTRONIC CONDUCTORSen
dc.subjectSC-DOPEDen
dc.subjectCAZRO3en
dc.subjectEXHAUST-GASen
dc.subjectTRANSPORT-PROPERTIESen
dc.subjectSENSORen
dc.subjectOXYGENen
dc.subjectTEMPERATUREen
dc.subjectPRESSUREen
dc.subjectSYSTEMen
dc.subjectElectrochemistryen
dc.titleApplication of Solid oxide proton-conducting electrolytes for amperometric analysis of hydrogen in H-2+N-2+H2O gas mixturesen
dc.typejournalArticleen


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