碳納米管在金電極表面的固定與修飾.pdf

1、南京理工大學(xué)碩士學(xué)位論文碳納米管在金電極表面的固定與修飾姓名：劉文婷申請學(xué)位級別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：車劍飛20080628Abstract碩士論文AbstractInthispapercarbonnanotubeswereimmobilizatedonthesurfaceofgoldelectrodeorientlyThesurfacewasthenmodificatedbyconductivepolymerfurth

2、erandfinallycameintoaroughhairlikeonewithonedimensionnano州restructureSinglewalledcarbonnanotubes(SWNTs)wereusedinthisresearch，differentparameters(time，temperature，treatmentmethods，etc)werediscussed，SOastodeterminetheiref

3、fectsonpurification，cuttinganddebundlingofSWNTsandchoosetheoptimalexperimentalconditions(mixedconcentratedacid，lowtemperatureandultrasonication)toprepareastablesuspensioninashorttimeSodiumdodecylbenzenesulfonate(SDBS)was

4、addedtoenhancethestabilizationoftheaqueoussuspensionAsurfacecondensationreactionbetweenaminoandcarboxylicgroupswasthenperformedbyimmersingallaminoselfassembledmonolayer(SAM)一modifiedgoldeletrodeintotheaqueoussuspensionof

5、SWNTswiththeaidofN(3Dimethylaminopropyl)一N’一ethylcarbodiimidehydrochloride(EDCHCl)andsulfo—Nhydroxysuccinimide(s—NHS)，thereafterSWNTshasbeenimmobilizedongoldorientlyPoly(3，4一ethylenedioxythiophene)(PEDOT)filmswereprepare

6、dontheSWNTimmoblizedelectrodebypotentiostaticelectropolymerizationfromEDOTaqueoussolution，withptoluenesulfonicacidsodiumsalt(TsONa)asthesupportingelectrolytesFieldEmissionscanningelectronmicroscopy(FSEM)，transmissionelec

7、tronmicroscopy(TEM)，infraredspectrometryandramanspectrometrywereusedtocharacterizethestructureandmodalityofSWNTsbeforeandafteracidtreatmentRamanspectrometrycouldalsotestifytheimmobilizationofSWNTsongoldwhileatomicforcemi

8、croscopy(AFM)showedtheperpendicularstandingstateofSWNTsongoldsurfaceScanningelectronmicroscopy(SEM)wasusedforobservingtheroughsurfaceafterpolymerizationofEDOTonmodifiedgoldandtheresultsofcyclicvoltammetry(cv)showedthatal

9、lthemodifiedelectrodeshaveremarkableimprovementsinelectrochemistrypropertiesKeywords：CarbonNanotubes，F(xiàn)unctionalization，Selfassembly，OrientlyImmobilization，Poly(3，4ethylenedioxythiophene)，PotentiostaticElectropolymerizati