丝网印刷法制备高催化活性对电极-论文.pdf

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1、ChineseJournalofCatalysis35(2014)219—226催化学报2014年第35~／-第2期1w^，．chxb．cnavaiIableatwww．sciencedlrect．c0m。：ScienceDirectjournalhomePage：www。elsevie。com／locate／chnjcArticleScreen-printedPtcounterelectrodesexhibitinghighcatalyticactivityChunyuZhaoanYantaoShi。ZhiyongZhongb，TingliMa，#a

2、StateKeyLaboratoryofFineChemicals,SchoolofChemistry,DalianUniversityofTechnology,Dalian116024,Liaoning,ChinabYingkouOpvtechNewEnergyCo．Ltd，Yingkou113003,Liaoning,ChinaARTICLEINF0ABSTRACTArticlehistory：Counterelectrodes(CEs)fordye-sensitizedsolarcells(DSCs)areimportantforcollecti

3、ngelectronsReceived5July2013andcatalyzingtheiodide／tri-iodidereaction．PtCEsarecommonlypreparedbymagnetronsput‘Accepted23October2013tering,whichisexpensiveandrequiresvacuumconditions．IncorporatingthelowcostsurfactantPublished20February2014Span．85improvedtheadhesionbetweenthePtpar

4、ticlesandconductivesubstrate．andallowedPt．basedCEstobescreen—printed．ThescreenprintedCEwascomparedwiththosepreparedbydip-coatingandspin-coating．Photoelectricconversionefficienciesof7．30％．6．96％and7．03％wereKeywords：achievedforDSCscontainingscreen·printed，dip—coatedandspin-coatedCE

5、s，respectively．OpticalCounterelectrodetransmittancemeasurements，scanningelectronmicroscopy．andfilmadhesiontestsresultsAdhesionuniformityshowedthatthesurfactantimprovedfilmadhesionandincreasedtransmittance．andtheCOntr0lIablescreen-printedCEsexhibitedcomparabletransmitancetothedip

6、-coatedCEs．Screen—printingDye-sensitizedsolarcellresultedinPtparticlesbeingmoreuniformlydistributedonthesubstrate，whencomparedwithdip—coatingorspin-coating．Cyclicvoltammetry，electrochemicalimpedancespectroscopy，andTafel-polarizationcurvesshowedthatthecatalyticactivityofthescreen

7、-printedPt-basedCEswerehigherthanthatoftheotherCEs．Screen-printingissuitableforrealizingthelow-costlarge-scaleproductionoflargePt—basedCEs．⑥2014，DalianInstituteofChemicalPhysics，ChineseAcademyofSciences．PublishedbyElsevierB．V．Allrightsreserved．1．Introductionmetalsulfides【6,8—11]

8、，carbonmaterials[12】andcompositematerials『7，13—