载镍活性炭材料及复合型超级电容器

42220102JOURN[e-mail]2.150001..194.01F/g175F/g10.84%6mol/L0.296V0.220V0.076V..6mol/LKOH1.2V0.2V.1000090%..TM912.9A0367－6234201002－0254－05ActivatedcarboncapacitormaterialsloadedwithnickeloxideandthehybridcapacitorYUANGuo-hui12WANGFu-ping1JIANGZhao-hua21.ResearchStationonMaterialScienceandEngineeringforP[e-mail]ingandTechnologyHarbinInstituteofTechnologyHarbin150001ChinaAbstractInordertoenhancethespecificcapacitanceandenergydensityofcarbon-basedsupercapacitorsomeparticlesofnickeloxidewereloadedintoactivatedcarbon.Ahybridtypeelectrochemicalcapacitorwasmadeandtestedinwhichtheactivated-carbonloadedwithnickeloxidewasusedasanodematerialandacti-vated-carbonwasusedascathodematerial.ResultsshowthattheBETsurfaceareaoftheactivated-carbonde-creasesduetothedepositionofnickeloxidebutnoobviouschangeisfoundintheporesizedistribution.Thespecificcapacitanceofthecapacitorisincreasedfrom175.40F/gto194.01F/g.Thepotentialofoxygene-volutiononthecompositematerialelectrodereaches0.296Vanditis0.076Vhigherthanthatonthepureactivated-carbonelectrodewhichindicatesthatthehybridcapacitorhashighenergydensity.Similartothepureactivated-carbonelectrodenoobviouschangeappearsonthespecificcapacitancesofthecompositema-terialelectrodeatvariousdischargecurrentsandthecompositematerialelectrodeexhibitsgoodpowercharac-teristics.Theoperationvoltageofthehybridcapacitoris1.2Vintheelectrolyteof6mol/LKOHsolutionwhichis0.2Vhigherthanthatofdouble-layercapacitormadeofactivatedcarbon.Itisconcludedthatthespecificcapacitanceandenergydensityofcarbon-basedsupercapacitorcanbeenhancedbyloadingsomenano-meter-scaleparticlesofnickeloxideintoactivatedcarbon.Keywordselectrochemicalcapacitoractivatedcarbonnickeloxidecompositeelectrodematerial2009－12－16.GC05A208.1962—1954—1956—.“ECs”1－2..3－4.5－6.、7.Be-liakov8－..Park9NiOH2/EDLC－.530F/g.10－12.“”.1AC1332m2/g98%10%1h4h120℃.1.13g30mL2%NiNO324h.1mol/LNaOH30min.pH8.120℃.1.2CMCPTFE.120℃20mm×15mm×0.8mm.80%、10%、CMC2.5%PT-FE7.5%.1.3、6mol/LKOH298±1K.KOHHgO/Hg..1.4CVEG＆G273A.BTS.1∶1.1.BETmicromeritics2010PEAAanalyst100.SEMHITA-CHIS－570.22.11H－KBJH4.3%.活性炭载镍活性炭0.0220.0200.0180.0160.0140.0120.0100.0080.0060.0040.81.01.21.41.61.82.0孔径/nm(a)H-K微孔孔体积/(mL·g-1·nm-1)活性炭载镍活性炭0.0300.0250.0200.0150.0100.005005101520253035孔径/nm(b)BJH介孔孔体积/(mL·g-1·nm-1)1·552·2.1、.2.22...Park8NiOH2/NiOH2.20.296V0.220V0.076V.CV1.1332.1m2/g1232.4m2/g175F/g194.01F/g10.84%..1BET%BETm2·g－1nmml·g－1F·g－1%01332.12.240.5594175.40－4.31232.42.200.5083194.0110.842520151050-5-10-15-20活性炭载镍活性炭-0.6-0.4-0.200.20.40.6U/VI/mA2320mA.....30.3V0.25V0.05V..E=0.5CV2//.0.40.30.20.10-0.1-0.2-0.3-0.4U/V载镍活性炭活性炭05101520t/min32.C=IΔt/ΔV.1...Park8NiOH2NiOH2/.2F·g－1/mA·cm－210204080185.55184.66183.97182.62196.71194.02191.87191.342.341∶1.1.·652·42.1.2V.1.0V..3..E=0.5CV2.1.41.21.00.80.60.40.20双层型电容器复合型电容器-505101520253035404550t/minU/V451000090%..5004504003503002502000200040006000800010000循环次数C/F52.4SEM625SEM.206a..6b....(a)活性炭电极(b)复合电极6SEM31.175F/g194.01F/g10.84%0.220V0.296V.2.3..46mol/LKOH1.2V0.2V.1000090%.SEM.1CONWAYBE.Transitionfrom“Supercapacitor”to“Battery”behaviorinelectrochemicalenergystorageJ.JElectrochemSo199113861539－1548.·752·22YUANGHJIANGZHARAMATAAetal.Elec-trochemicalbehaviorofactivatedcarboncapacitorma-terialloadedwithnickeloxideJ.Carbon200543142913－2917.3WANGJunYOUJiaLIZhanshuangetal.Capaci-tanceperformanceofporousnickelelectrodemodifiedwithCo/AlhydrotalciteJ.JElectroanalyticalChemistry2008624241－244.4PATAKEVDJOSHISSLOKHANDECDetal.ElectrodepositedporousandamorphouscopperoxidefilmforapplicationinsupercapacitorJ.MaterialsChemistryandPhysics20091146－9.5ZHENGJPCYGANPJJOWTR.Hydrousruthe-niumoxideasanelectrodematerialforelectrochemicalcapacitorsJ.JElectrochemSoc199514282699－2703.6KIMHSPOPOVBN.Characterizationofhydrousrutheniumoxide/carbonnanocompositesupercapaci-torspreparedbyacolloidalmethodJ.JPowerSources19944789－107.7ZHANGYFENGHWUXBetal.ProgressofelectrochemicalcapacitorelectrodematerialsAre-viewJ.InternationalJournalofHydrogenEnergy2009344889－4899.8BELIAKOVAIBRINTSEVAM.DevelopmentandapplicationofcombinedcapacitorsDoubleelectriclayer－pseudocapacityC//Proceedingsofthe7thInternationalSeminaronDoubleLayerCapacitorsandSimilarEnergyDevices.DeerfieldBeachFL1997.9PARKJHPARKOOSHINKHetal.Anelec-trochemicalcapacitorbasedonaNiOH2/activated－carboncompositeelectrodeJ.ElectrochemicalandSolid－StateLetters200252H7－H10.10.J.2007248873－877.11FANZCHENJCUIK.Preparationandcapacitivepropertiesofcobalt—nickeloxides/carbonnanotubecompositesJ.ElectrochimicaActa2007522959－2965.12NiO－J.2007381105－108.2226KAYADYAGMUREAYIGITKSetal.Energyef-ficiencyinpumpsJ.EnergyConversionandManage-ment20084911662－1673.7WANGZJDONGLHJIANGYCetal.Operationcharacteristicsofvariablespeedcirculationpumpsinvariableflowheat－supplysystemsJ.ProceedingsoftheSixthInternationalConferenceonColdClimate－HeatingVentilatingandAir－ConditioningColdCli-mateHVAC2009.SisimiutGreenland2009.8RISHELJB.