Abstract
Graphite powder-supported cupric hexacyanoferrate (CuHCF) nanopartides were dispersed 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 characterized using cyclic and square-wave vottammetry. Cydic voltammograms at various scan rates indicated that peak currents were surface-confined at low scan rates. In the presence of glutathione, a dear electrocatalytic response was observed at the CuHCF-modified composite electrodes. In addition, the electrodes exhibited a distinct advantage of reproducible surface-renewal by simple mechanical polishing on emery paper, as well as ease of preparation, and good chemical and mechanical stability in a flowing stream.
Original language | English |
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Pages (from-to) | 374-380 |
Number of pages | 7 |
Journal | Chinese Journal of Chemistry |
Volume | 20 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2002 |
Externally published | Yes |
Keywords
- Carbon ceramic electrode
- Cupric hexacyanoferrate
- Electrocatalytic oxidation
- Glutathione
- Nanoparticle
- Sol-gel