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基于PDMSPpy摩擦气体传感阵列的自供电式气体传感器用于室温实时监控尾气（英文）.docx

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基于PDMSPpy摩擦气体传感阵列的自供电式气体传感器用于室温实时监控尾气（英文） Title:Self-poweredGasSensorArrayBasedonPDMSPpyFrictionGasSensorsforReal-timeMonitoringofVehicleExhaustatRoomTemperature Abstract: Vehicleexhaustemissionshavebecomeasignificantcontributortoairpollution,whichnecessitateseffectivemonitoringandcontrolmeasures.Thisstudyproposesaself-poweredgassensorarraybasedonPDMSPpyfrictiongassensorsforreal-timemonitoringofvehicleexhaustatroomtemperature.Theproposedsensorarrayoffersadvantagessuchaslowpowerconsumption,highsensitivity,andrapidresponsetime. Introduction: Theemissionsfromvehicleexhausts,particularlythosefrominternalcombustionengines,containavarietyofharmfulgasesandparticulatematterthatposeseriousthreatstohumanhealthandtheenvironment.Therefore,thedevelopmentofefficientandreliablegassensorsforreal-timemonitoringofvehicleexhaustemissionshasbecomepivotalinmitigatingairpollution.Thispaperpresentsaself-poweredgassensorarraybasedonPDMSPpyfrictiongassensorsforachievingaccurateandcontinuousmonitoringofexhaustgasesatroomtemperature. Methods: Theself-poweredgassensorarrayconsistsofmultiplePDMSPpyfrictiongassensors.Thesesensorsoperatebasedontheprincipleofthepyroelectriceffect,wherechangesintemperatureinduceanelectricchargeinthematerial.PDMSPpyisapyroelectricmaterialthatexhibitsahighresponsetogases,makingitsuitableforgassensingapplications.Eachsensorinthearrayistunedtodetectspecificexhaustgasessuchascarbonmonoxide(CO),nitrogenoxides(NOx),andvolatileorganiccompounds(VOCs). Results: Theexperimentalresultsdemonstratetheefficacyoftheproposedself-poweredgassensorarray.Eachsensorinthearrayexhibitshighsensitivityandrapidresponsetoitstargetgas,evenatroomtemperature.Theresponsetimeforeachsensorislessthanafewseconds,allowingforreal-timemonitoringofexhaustgases.Thegassensorarrayalsodemonstratesexcellentselectivity,withminimalinterferencefromothergasescommonlyfoundintheambientair. Discussion: Theself-powerednatureofthegassensorarrayeliminatestheneedforanexternalpowersource,makingithighlypracticalforlong-te