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Cupric Hexacyanoferrate Nanoparticle Modified Carbon Ceramic Composite Electrodes
Author(s) -
Wang Peng,
Zhu GuoYi
Publication year - 2002
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20020200415
Subject(s) - electrode , chemistry , composite number , cyclic voltammetry , nanoparticle , ceramic , chemical engineering , carbon fibers , electrochemistry , chemically modified electrode , voltammetry , composite material , materials science , working electrode , organic chemistry , engineering
Graphite powder‐supported cupric hexacyanoferrate (CuHCF) nanoparticles 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 voltammetry. Cyclic 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.