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1、SolidStateIonics262(2014)283–287ContentslistsavailableatScienceDirectSolidStateIonicsjournalhomepage:www.elsevier.com/locate/ssiNASICON-basedacetonesensorusingthree-dimensionalthree-phaseboundaryandCr-basedspineloxidesensingelectrodeHanZhang,ChengguoYin,YingzhouGuan,XiaoyangCheng,XishuangLia
2、ng⁎,GeyuLu⁎StateKeyLaboratoryonIntegratedOptoelectronics,CollegeofElectronicScienceandEngineering,JilinUniversity,2699QianjinStreet,Changchun130012,ChinaarticleinfoabstractArticlehistory:Theimprovementofthesensingperformanceforthemixed-potential-typeacetonesensorusingNASICONandReceived17May2
3、013Cr-basedspinel-typeoxide(ACr2O4,A=Zn,Co,Ni)sensingelectrodewasexaminedbyincreasingthelengthofReceivedinrevisedform21November2013three-phaseboundary(TPB).Amongthespinel-typeoxidestested,NiCr2O4wasfoundtobethebestsuitedforAccepted28November2013thesensingelectrode.TheNASICONpowderwasmixedwit
4、hNiCr2O4indifferentmassfraction(10wt.%,Availableonline15December201320wt.%,30wt.%and40wt.%)toimprovethelengthofTPB.BymixingNASICONpowderintotheNiCr2O4elec-trode,thecontactbetweenNASICONandthesensingmaterialexistednotonlyattheinterfacebetweentheKeywords:AcetonesensorNASICONlayerandtheoxidethi
5、ckfilm,butalsoattheinsideofthesensingelectrode.Asaresult,athree-Solid-electrolytedimensionalTPBwasconstructed,andshowedanenhancingeffectonthesensitivityofthesensor.Thesensitiv-NASICONityofthedeviceusingNiCr2O4electrodemixedwith30wt.%NASICONto5ppm–100ppmC3H6Ovaporwas−Spinel-typeoxides58mV/deca
6、deat375°C,whichwashigherthanotherdevices(10wt.%,20wt.%and40wt.%).Itwasalsoob-Three-dimensionalthree-phaseboundaryservedthatthesensorshowedaspeedyresponseandrecoverykineticstoacetonevapor.©2013ElsevierB.V.Allrightsreserved.1.Introductionbeenpaidonthespineltypeoxideelectrodes.Spineltypeoxidesa
7、rerep-resentedbythechemicalformulaAB2O4,inwhichAionsaregenerallydi-AcetoneasageneralchemicalreagentinindustriesandfrominteriorvalentcationsoccupyingtetrahedralsitesandBionsaretrivalentcationstrimmaterialsisatypicalvolatileorganiccompound,causingman
