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Carbon paste electrodes with electrolytic binder: Influence of the preparation method
Author(s) -
Ramírez M. T.,
Palomar M. E.,
González I.,
RojasHernández A.
Publication year - 1995
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140070215
Subject(s) - ferrocene , graphite , electrolyte , materials science , electrochemistry , carbon fibers , electrode , sulfuric acid , carbon paste electrode , yield (engineering) , supporting electrolyte , inorganic chemistry , chemical engineering , cyclic voltammetry , chemistry , metallurgy , composite material , composite number , engineering
A method for the construction of carbon paste electrodes (CPE) is described. Here ferrocene is used as the insoluble electroactive species, graphite powder as conductor and sulfuric acid as binder. The CPE thus prepared prevents ferrocenium ions from diffusing towards the bulk solutions. Voltammetric, chronopotentiometric and chronoamperometric experiments performed with these CPEs show that the different preparation methods yield different electrochemical parameters for the ferrocene–ferrocenium system.