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Electrochemical Quartz Crystal Microbalance Software Features
Gamry’s Resonator™ software controls both the QCM and a Gamry Potentiostat. Resonator includes a full suite of physical electrochemistry techniques (PHE200 license required).
Electrochemical Techniques• CyclicVoltammetry• LinearSweepVoltammetry• Chronoamperometry• Chronopotentiometry• Chronocoulometry• ControlledPotentialCoulometry(BulkElectrolysis)• RepeatingChronoamperometry• RepeatingChronopotentiometry
Data acquisition is controlled with one program. QCM control is on one tab while potentiostat control is on another tab.
Frequency data is displayed on the
potentiostat tab during acquisition. Here areboth the QCM and potentiostat responses during
the cycling of a Cu film on an Au electrode.
When you combine the eQCM 10M with a Gamry Potentiostat such asaReference600™,yougetthecombinationofstate-of-the-artinstruments. Data are easily incorporated into Gamry’s powerful EchemAnalystgivinganintuitivefeeltoanalysisandpresentation.Current/Voltagecurvesoverlaidwithfrequencydataarestandard.
In Echem Analyst, Current/Voltage data are overlaid with frequency data as part of the standard data analysis.
EchemAnalystscriptsarewrittenusingVisualBasic® forApplications,givingyoutheabilitytomodifydatahandling.
Forexample,ifyouwantedtocalculatesolventfluxinapolymerfilmduringredoxcycling,youcouldwriteacustomscript
tocalculateanddisplayfluxversuspotential,time,orcharge.
Easily plot Mass versus Charge to back out Molar Masses.
Theelectrochemicalquartzcrystalmicrobalance(EQCM)canbeusedtostudyavarietyofinterfacialphenomena.These phenomena can include:
• Li+ Intercalation• Electrodeposition• CorrosionStudies• Electropolymerization• Ion/SolventAdsorptionandTransport• BindingEvents
Alloftheseprocessesresultinmasschangestothesurfacebeingstudied.TheeQCMutilizesquartzcrystalsthatresonateatspecificfrequenciesupontheapplicationofanACsignal.Theseresonantfrequencieswillchangeasmassislostoraddedtotheelectrodeonthefaceofthequartzcrystal.TheeQCM10Mmonitorsthesefrequencychangesinordertocalculatemassgainedorlost.
AppliCAtionSEnergy Research
Understandingionintercalationisanimportantpartofbatterydevelopment.Assembleyourhalf-cellonacoatedcrystalandmonitormasschangesasyourcyclethepotential–givingyouinsightintovariouschargetransfersteps.Repeatedcyclingcanallowyoutounderstandtrappingmechanismsandhowtheyshortendevicelifetime.
Studyingionfluxesisanimportantstepinimprovingtheperformanceofsupercapacitors.Ionsandsolventwilladsorbanddesorbwhenthepotentialoftheelectrodeiscycled.Understandingtherelationshipbetweenmassandchargeallowsyoutoidentifykeyionsinyourelectrodeprocesses.Knowingwhationsaremovingthenallowsyoutounderstandsolventbehaviorduringyour experiment.
Corrosion StudiesMeasuringcorrosionratesbymasslossiseasywiththeeQCM10M.BelowisanexampleofCucorrodinginanacidicsolution.
Inhibitors could be studied too –see how the mass loss rate
decreases after you add an inhibitor. Oryoucanactivelypolarizeyourelectrodeusingapotentiostat
to induce corrosion.
Physical ElectrochemistryElectropolymerization and electrodeposition are two important processes in physicalelectrochemistry.Bothproducemasschangestotheelectrodesurfaceintheformofafilm.Mass-chargerelationshipsduringdepositionprovideinsightondepositionprocesseswhilemass-chargerelationshipsofalready-formedfilmsprovideinsightintofilmredoxproperties.
Repeated cycling of an Au-coated quartz crystal in the presence of bithiophene results in increases in current and mass.
Sensor DevelopmentSensorsrelyuponbindingeventstoproduceachange.Masschangesareeasilydetectedwhenananalytebindstoafunctionalizedelectrode.Nomorelabelingthespeciesofinterestforspectroscopicdetection–theQCMcanrespondtoanybindingevent.
SYSTEM
FrequencyRange 1-10MHz
Frequency Resolution 0.02 Hz
Interface USB
OperatingTemperatureRange 0to45ºC
RelativeHumidity Max90%Non-condensing
StorageandShippingTemperature -25to75ºC
Weight 1kg
DIMENSIONS 175x115x80mm
ACPowerAdapter 100-264VAC,47-63Hz
QuartzCrystalMicrobalance 12VDC,25W
734LouisDrive | Warminster,PA18974USA | +215-682-9330 | Fax:+215-682-9331 | [email protected] | www.gamry.com
Gamry Instruments designs and manufactures a variety of electrochemical instrumentation and accessories that are designed to fit your needs and budget. We are, first and foremost, electrochemists and materials scientists who love creating quality instrumentation and enjoy seeing it used creatively.
System information
Gamry’seQCM10Misarapid,impedance-scanningquartzcrystalmicrobalance(QCM)systemdesignedforoperationinaliquidenvironment.Anycrystalinthefrequencyrangeof1-10MHzcanbeused.Thisisidealforthosewhodeveloptheirowncellsorintegratetheircellintoothersystemssuchasspectrometers,AFMs,orSECMs.
Instrument Features• FrequencyResolutionof0.02Hz• NoNeedtoManuallyCompensateforParasiticCapacitance• USBInterface• IntegratedQCMandPotentiostatDataAcquisitionwhencoupledwithaGamryPotentiostat• DataAnalysisinGamry’sFlexibleandCustomizableEchemAnalyst™• IncludesTeflon®CellandFiveCrystals
TheeQCM10MisshippedwiththeGamryResonatorSoftware,GamryEchemAnalystSoftware,aQuickStartGuide,aHardwareOperator’sManual(CD),aSoftwareOperator’sManual(CD),oneeQCMcell,oneACPowerAdapter,oneUSBinterfacecable,oneBNCcable,onepotentiostatinterfacecable,onegroundingcable,andfiveAu-coatedquartzcrystals(10MHz). TheeQCM10Misprotectedbyatwo-year,factory-servicewarranty. The eQCM 10M must be interfaced to a computer with a Gamry Potentiostat* and a PHE200™ license for incorporation and combination of QCM and potentiostat data into Echem Analyst. Microsoft® Windows XP or newer. *models include the Interface 1000™, Reference 3000™, Reference 600™, PCI4/Series G 750™, PCI4/Series G 300™
Available Accessories• Teflon®eQCMCell(oneincludedwithunit)• 10MHzAT-cutAu-CoatedCrystals(fiveincludedwithunit)• 10MHzAT-cutCarbon-CoatedCrystals• 10MHzAT-cutPt-CoatedCrystals• 10MHzAT-cutFe-CoatedCrystals• 10MHzAT-cutBlankCrystals(undersideofTi/Au)• eQCMFlowCell• QCMFlowCell
SpECiFiCAtionS
eQCM10MRev3.0-8/2012©Copyright1990-2012GamryInstruments