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Visible-Light Responsive Photocatalytic Fuel Cell Based on Cu20/Cu/Ti02-NTs Photoanode and CuO/Ti02 Photocathode for Simultaneous Wastewater Treatment and Electricity Generation

資料類型：

PDF文件

關(guān)鍵詞：

Photocatalytic fuel cell Stability Photoelectrochemical performance

資料大小：

76K

所屬學(xué)科：

分子表征

來源：

第六屆亞歐研討會(huì)上處理和性能增強(qiáng)聚合物會(huì)議文集（2013.6.2-6 武漢）

簡介：

Avisible-lightdrivenphotocatalyticfuelceII(PFC)systemcomprisedofCu20/Cu/Ti02-NTsphotoanodeandCuO/Ti02photocathodewasestablishedforprovidingaself-sustainedandenergy-savingwayforsimultaneouswastewatertreatmentandenergyrecovery.TheCu20/Cu/Ti02photoanodewassynthesizedbyinterruptedelectrodepositionfromaneutralsolutionofcoppercomplexontheTi02-NTswhichwasfabricatedbyapotentiostaticanodization.Polarizingtheelectrodeat-0.4VversusthestandardhydrogenelectrodewasneededbeforethePFCrunning.ACuO/Ti02photocathodecanbefabricatedbyimmersingtheCu20/Cu/Ti02-NTsintothebasicsolutionofsodiumpersulfateandthenannealingitat4500C.Thephotoelectrochemicalcharacteristicsofeitherthephotoanodeorthephotocathodewereevaluatedinathree-electrodesystemwithsaturatedcalomelelectrode(SCE)asthereferenceelectrode,platinumfoilastheauxiliaryelectrodeandtheelectrodeastheworkingelectrode.Theelectrolytewasa0.5MNa2S04solutionbufferedatpH7withpotassiumphosphate(0.IM)solution.Thegreatlyenhancedphotocurrentofthephotoanode(15vAcm-2)relativetoTi02-NTs(3.0vAcm-2)wasobservedunderchoppedAMI.5illumination(ioomWcm-2).ThephotocathodewassuperiortobareCu20electrodeinstabilitywiththeratioofthephotocurrentatthe20thandlstlightcirclegreaterthan95%01],whereastheratiobythelatterwasnearzero.Theopen-circuitvoltageofthePFCwasmeasuredtobelargerthan0.IVunderillumination,whichprovedthefeasibilityofusingthePFCforsimultaneouswastewatertreatmentandenergyrecovery.

作者：

P. Xu, W. J. Liao , J. W. Yang, Z. M. Hu, Y. R. Zhang

上傳時(shí)間：

2013-07-03 14:02:38

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