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 fab...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.展开更多
基金theMinistryofScienceandTechnologyofChina (No .2 0 0 1BA2 10A0 4)
文摘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.
