✦ LIBER ✦

Sol-gel-derived cobalt phthalocyanine-dispersed carbon composite electrodes for electrocatalysis and amperometric flow detection

✍ Scribed by Joseph Wang; Prasad V. A. Pamidi; Concepcion Parrado; Deog Su Park; Jose Pingarron

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 487 KB
Volume: 9
Category: Article
ISSN: 1040-0397
DOI: 10.1002/elan.1140091208

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✦ Synopsis

Abstract

A new sol‐gel‐derived electrocatalytic carbon composite electrode was prepared by dispersing cobalt phthalocyanine (CoPC) in a carbon ceramic network. The performance of the CoPC‐modified sol‐gel carbon composite electrode compares favorably with that of common CoPC‐containing carbon pastes in term of electrocatalytic properties and short‐ and long‐term stability. The greatly improved stability and electrocatalytic action are illustrated in cyclic‐voltammetric and flow injection amperometric measurements of hydrogen peroxide, hydrazine, oxalic acid, cysteine and thiourea. Such improvements are coupled with the versatility, mechanical stability and renewability features of sol‐gel carbon composites.

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