Electrochemical Quartz Crystal Microbalance

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 | info@gamry.com | 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