OALib Journal期刊
ISSN: 2333-9721
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乙醇在碳载Pt纳米薄膜电极上吸附和氧化过程研究——II.酸性介质中EQCM和原位FTIR反射光谱
, PP. 96-101
Keywords: 纳米薄膜电极,电催化氧化,乙醇,原位FTIRS,EQCM
Abstract:
运用电化学循环伏安,石英晶体微天平(EQCM)和原位FTIR反射光谱等方法研究了酸性介质中乙醇在碳载纳米Pt膜电极上吸附和氧化行为.结果表明,乙醇的电氧化与溶液酸碱性及电极表面氧物种有密切的关系,并指出乙醇电催化氧化是通过解离吸附产物和反应中间体双途径机理进行的.在实验条件下,经原位FTIR反射光谱检测,解离吸附产物为CO,反应中间体主要有CH3COOH和CH3CHO等物种.
References
[1] | McNicolBD ,Electrocatalyticproblemsassociatedwiththedevelopmentofdirectmethanol airfuelcells[J].J .Electroanal.ChemInterfacialElectrochem ,1981,118:71.
|
[2] | [2 ] CaramJA ,GutierretC .Cyclicvoltammetricandpotential modulatedreflectancestudyoftheelectroadsorp tionofCOmethanolandethanolonapalladiumelectrodeinacidandalkalinemedia[J].J.Electroanal.Chem .,1993,344:313.
|
[3] | SouzaJPI,MeshbesherTM ,FloydSetal.Performanceofaco electrodepositedPt Ruelectrodefortheelectro oxidationofethanolstudiedbyinsituFTIRspectroscopy[J].J .Electroanal.Chem .,1997,4 2 0 :17.
|
[4] | [4 ] BuschmannHW ,WilhelmS ,VielstichW .Onthestudyofmethanoloxidationbyelectrochemical.SIMS[J].J .Electrochim ..Acta ,1986 ,31:939.
|
[5] | BurkeLD .UnusualpostmonolayeroxidebehaviorofGoldelectrodeinbase[J].J .Electrochem .Soc.,1992 ,139:399.
|
[6] | [6 ] BurkeLD ,LeeBH .Aninvestigationoftheelectrocatalyticbehaviorofgoldinaqueousmedia[J].J.Elec troanl.Chem 1992 ,330 :6 37.
|
[7] | ChenGL ,SunSG ,ChenSPetal.Cyclicvoltammogramsandin -situFTIRspectroscopicstudiesofad sorptionandoxidationofethanolonnm Pt/GCelectrode[J].Electrochemistry ,(inchinese) ,2 0 0 0 ,6 (4 ) :4 0 6 .
|
[8] | [8 ] SunSG ,YangDF ,TianZW .InSituFTIRStudiesontheAdsorptionandOxidationofn - propanolandiso - propanolataPtElectrodeinSulphuricAcidMedium[J].J .Electroanal.Chem .,1990 ,2 89:177.
|
[9] | NicholsRJ ,BewickA .SNIFTIRSwithaflowcell:theidentificationofthereactionintermediatesinmethanoloxidationatPtelectrode[J].J.Electrochim ..Acta ,1988,33:16 91.
|
[10] | [10 ] LuGQ ,SunSQ ,CaiLR ,etal.InsituFTIRspectroscopicstudiesofadsorptionofCO ,SCN -andPoly(o - phenylenediamine)onelectrodesofnanometerthinfilmsofPt ,PdandRh :Theabnormalinfraredef fects (AIREs) [J].LANGMUIR ,2 0 0 0 ,16 (12 ) :778.
|
[11] | IwasitaT ,RaschB ,CattaneoE ,etal.ASNIFTIRSstudyofethanoloxidationonPlatinum [J].J .Elec trochimicaActa ,1989,34:10 73.
|
[12] | [12 ] DongQing nian .ThemethodsofInfraredSpectroscopy[M ],Bejing ;ChemicalIndustryPress ,1979,10 4 ,12 8.
|
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