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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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ImprovedhydrogenevolutiononglassycarbonelectrodemodifiedwithnovelPt/cetyltrimethylammoniumbromidenanoscaleaggregates
DOI: 10.1016/S1872-2067(14)60207-2, PP. 216-220
Keywords: Cetyltrimethylammoniumbromide,Impedancespectroscopy,Hydrogenevolution,Platinumparticle
Abstract:
？Anovel,cost-effective,andsimpleelectrocatalystbasedonaPt-modifiedglassycarbonelectrode(GCE),usingcetyltrimethylammoniumbromide(CTAB)asacationicsurfactant,isreported.AmphiphilicCTABmoleculeswereadsorbedonGCEbyimmersioninaCTABsolution.Thepositivelychargedhydrophiliclayer,whichconsistedofsmallaggregatesofaveragesizelessthan100nm,wasusedforaccumulationandcomplexationof[PtCl6]2-anionsbyimmersingtheelectrodeinK2PtCl6solution.Themodifiedelectrodewascharacterizedusingscanningelectronmicroscopy,energy-dispersiveX-rayspectroscopy,impedancespectroscopy,andelectrochemicalmethods.TheelectrocatalyticactivityofthePtparticlesinthehydrogenevolutionreaction(HER)wasinvestigated.TheresultsshowthattheCTABsurfactantenhancestheelectrocatalyticactivityofthePtparticlesintheHERinacidicsolution.
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