1、哈爾濱工程大學(xué)碩士學(xué)位論文二氧化錳的制備及超級(jí)電容性能研究姓名：楊惠申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：張密林20060301哈爾濱工程大學(xué)碩士學(xué)位論文AbstractSupercapacitorsarcnewenergystoragecoⅡlponcntsbetweeIlba仳eriesandelectmstaticcapacitors，becauseof血eirexcellentpropenies，suchashjgherpo

2、werdens時(shí)compared謝mrechargeablebatteries，largerspec強(qiáng)cc印acitorcomp盯ed謝也coIⅣentiorlalc印acitors，吼dbroadoperatiIlgtemperaturemgeand10ngcyclelife，w11ichcouldmeetmehighpowerneedofelectricvehiclesⅥrhenstauningupOraccelemtingThey

3、couldalsobeused嬲elec啊ccomponents，powefsourcesforsmall印paratusanddirectcurrents、^，itchesSupercapacitorsha_vebecomeahotspotiIlresearchbecaLlseofmeirwidepot鉍tial印plicatiOnInmisdissertationwe咖diedseveralmc也odsfort11epfeparat

4、ionofMn02elec廿odematerialforsupercapacitorTheperfomallceofMn02electrodea11dsupercapacitorⅥmsinvestigatedusingcyclicVol咖e謝c(CV)，collstantcu仃entcharge／dischargeandelec仃DchemicalimpedaIlcespectrome廿y(EIS)Xraydi丘Imction(XRD)

5、，sc秈ingelec仃onmicroscope(SE呻andtransmissionelec加nmicroscope(刪)wereusedtoanalyzethes仃uctureofMn02Mn02elec仃odeII慨cerialw船preparedbypotentiodynamicald印ositionnwasfoundthatwhentlleelectrolytewas1mol／L，mesc趾ratew嬲50mV／s，andth

6、escancyclesⅧ200times，也eresllltingMh02particulatesweresmallnanowires謝t11di鋤eteriIlthemgeof100~200nmandlengthintlleorderof05～1O“mIn2mol／L(N出)2S04elec仃Dlytesol嘶onandthepotential瑚geof025~o95V(vsSCE)，tIleaveragcdischargespeci

7、ficc印acitanceofMn02elec仃odewas5057F儋ataconstantcurrentof10mAThee伍ciencyofcharge—dischargeofMn02elec扛odewasiⅡ1provcda&r1000cycles，andmeESR、ⅣasaslowasO26QMn02waspreparedbyliquidphaseredoxmetllodTheiImuenceofreactiontempera

8、加re，dispersantaIldOtllerf如torsweremvestiga士edTheelec仃ochemicaltestsincludedthatCVcllrVespresentedfaVorablecharacteristicofsq啦嘞ess，aIldtlleaveragedisclmrgespecmccapacitanceofMn02elec打ode、vere1387F儋(composedofT№02a11dnMn02

9、)and813F／g(nMn02)byconst趾tcharg“disch孵measurements，atacongtantcurrentof5mANano—Mn02preparedbysol—gelmetllodwaScomposedofn—Mn02a11dJr—Mn02，andthepamclesizewasabout30mAsupercapacitorwasass鋤bledwitllMn02electrode，carbonelec