Cupric Hexacyanoferrate Nanoparticle Modified Carbon Ceramic Composite Electrodes  

作　　者：王鹏 朱果逸 

机构地区：[1]StateKeyLaboratoryofElectroanalyticalChemistry,ChangchunInstituteofAppliedChemistry,ChineseAcademyofSciences,Changchun,Jilin130022,China

出　　处：《Chinese Journal of Chemistry》2002年第4期374-380,共7页中国化学（英文版）

基　　金：theMinistryofScienceandTechnologyofChina (No .2 0 0 1BA2 10A0 4)

摘　　要：Graphite powder-supported cupric hexacyanoferrate (CuHCF) nanoparticles weredispersed into methyltrimethoxysilane-based gels to produce a conducting carbon ceramic composite,which was used as electrode material to fabricate surface-renewable CuHCF-modified electrodes.Electrochemical behavior of the CuHCF-modified carbon ceramic composite electrodes was characterizedusing cyclic and square-wave voltammetry. Cych'c voltammograms at various scan rates indicated thatpeak currents were surface-confined at low scan rates. In the presence of glutathione, a clearelectrocatalytic response was observed at the CuHCF-modified composite electrodes. In addition, theelectrodes exhibited a distinct advantage of reproducible surface-renewal by simple mechanicalpolishing on e-mery paper, as well as ease of preparation, and good chemical and mechanicalstability in a flowing stream.Graphite powder-supported cupric hexacyanoferrate (CuHCF) nanoparticles weredispersed into methyltrimethoxysilane-based gels to produce a conducting carbon ceramic composite,which was used as electrode material to fabricate surface-renewable CuHCF-modified electrodes.Electrochemical behavior of the CuHCF-modified carbon ceramic composite electrodes was characterizedusing cyclic and square-wave voltammetry. Cych'c voltammograms at various scan rates indicated thatpeak currents were surface-confined at low scan rates. In the presence of glutathione, a clearelectrocatalytic response was observed at the CuHCF-modified composite electrodes. In addition, theelectrodes exhibited a distinct advantage of reproducible surface-renewal by simple mechanicalpolishing on e-mery paper, as well as ease of preparation, and good chemical and mechanicalstability in a flowing stream.

关 键 词：SOL-GEL carbon ceramic electrode cupric hexacyanoferrate NANOPARTICLE electrocatalytic oxidation GLUTATHIONE 

分 类 号：O646[理学—物理化学]