聚苯胺纳米纤维的界面法制备、表征及电化学应用-化学;物理化学专业论文.docx

下载文档 降价啦

0
0
约3.87万字
约 37页
2018-05-05 发布于上海
举报
版权申诉
保障服务

聚苯胺纳米纤维的界面法制备、表征及电化学应用-化学;物理化学专业论文.docx

1、本文档共37页，可阅读全部内容。
2、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。
3、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。

聚苯胺纳米纤维的界面法制备、表征及电化学应用-化学;物理化学专业论文

concentration(morethan0.5M)ofacidsispreferabletoproducingthepolyanilinenanofibers.Atlowconcentration(lowerthan0.1M),thesyntheticpolyanilinehasamorphologyofparticles.Athighconcentration,thesizeofnanofibersisalmostindependentontheacidconcentration;Thediameterofthenanofiberincreaseswiththereactiontimewhenthetimeislowerthan6h.Atthelongerreactiontime,thediameterofthenanofibersremainspracticallyinvariantwiththereactiontimeandkeepsatthevalueofaround50nm;Whenthepolymerizationreactionwascarriedoutatthemonomerconcentrationof0.1M,thenanofiberswereproduced.Withtheincreasingoftheanilineconcentration,thequantityofgranularparticlesstartstoincreaseintheproducts.Whentheconcentrationofanilineisincreasedto1M,theproductsarecompletelyparticleagglomerations;WhentheconcentrationofAPSis lowerthan0.5M, polyanilinenanofibersareobtained andthediameters ofthesyntheticnanofiberskeepalmostinvariantwiththeincreaseoftheconcentrationof APSinaqueousphase.Thesenanofibershaveaveragediameterof40-60nm.However,theproductisintheformofparticulateswithanaverageparticlediameterof40-50nmwhentheconcentrationofAPSishigherthan0.5mol/L.2.DirectElectronTransferofGOxattheSurfaceofPolyanilineNanofibers.Thepolyanilinenanofibersareusedasanelectrodesubstrateforimmobilizationand facilitatingthedirectelectrontransfer(DET)ofredoxproteins/enzymeswithglucoseoxidase(GOx)asamodel.Afterimmobilizedonthenanofibers,GOxcankeepitsnaturalstructureandundergoeseffectiveDETreactionwithapairofwell-defined,quasi-reversibleredoxpeaksat–418mV(pH7.0,10mV/s).Theapparentelectrontransferrateconstantis(6.3±1.6)s-1.TheGOx-nanoPANI/GCelectrodedisplaysgoodfeaturesinelectrocatalyticoxidationofglucose,therefore,itcanbeusedasabiosensorfordetectingthesubstratewithalowdetectionlimit(0.5μM),a widelinearrange (0.01to1 mM),alowapparent Michaelis-Mentenconstant(1.05±0.04 mM), as wellasacceptablestabilityandreproducibility.Thegoodbiocompatibilityof polyanilinenanofibersenablesthemtobecomeasimpleandeffectiveplatformfortheintegrationofproteins/enzymesandel