Some New Approaches to the Characterization of the Carbon Paste Electrodes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00320354" target="_blank" >RIV/61388955:_____/08:00320354 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Některé nové přístupy k charakterizaci uhlíkových pastových elektrod

Original language description

Carbon paste electrodes (CPEs) have several substantial advantages: their surface is easily renewable and it is possible to modify the electrode material in the bulk in order to prepare a specific sensor. The properties of the electrodes depend stronglyon the used materials, that means on the carbon powder as well as on the oily binder, and on their proportions. Therefore the characterization of every type of such electrodes is very significant. We have found that the graph of the dependence of electrode resistance on the percentual composition manifests itself as two crossing lines. For the explanation of this dependence, a model based on the tight packing of spheres was suggested, formulated, tested and discussed. The other possibility how to characterize the electrodes is detailed interpretation of cyclic voltammetry of a reversible redox system. Both methods are compatible and enable to explain also problems with storage and ageing of electrodes.

Czech name

Některé nové přístupy k charakterizaci uhlíkových pastových elektrod

Czech description

Carbon paste electrodes (CPEs) have several substantial advantages: their surface is easily renewable and it is possible to modify the electrode material in the bulk in order to prepare a specific sensor. The properties of the electrodes depend stronglyon the used materials, that means on the carbon powder as well as on the oily binder, and on their proportions. Therefore the characterization of every type of such electrodes is very significant. We have found that the graph of the dependence of electrode resistance on the percentual composition manifests itself as two crossing lines. For the explanation of this dependence, a model based on the tight packing of spheres was suggested, formulated, tested and discussed. The other possibility how to characterize the electrodes is detailed interpretation of cyclic voltammetry of a reversible redox system. Both methods are compatible and enable to explain also problems with storage and ageing of electrodes.

Type

D - Article in proceedings

CEP classification

CG - Electrochemistry

OECD FORD branch

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Project

<a href="/en/project/LC06035" target="_blank" >LC06035: Centre of Biophysical Chemistry, Bioelectrochemistry and Bioanalysis. New Tools for Genomics, Proteomics and Biomedicine.</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Sborník přednášek z XXVIII. mezinárodního odborného semináře

ISBN

978-80-86238-39-5

ISSN

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e-ISSN

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Number of pages

3

Pages from-to

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Publisher name

Česká společnost chemická

Place of publication

Praha

Event location

Jetřichovice

Event date

May 26, 2008

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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