Direct evidence of concentration and potential profiles in the electrolyte diode

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F08%3A00020628" target="_blank" >RIV/60461373:22340/08:00020628 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Direct evidence of concentration and potential profiles in the electrolyte diode

Original language description

Electrolyte diode is an electrochemical microsystem showing complex nonlinear behaviour due to interactions of diffusion, migration and chemical reactions. In our recent works we have developed a mathematical model of the electrolyte diode which predicted steep concentration and potential profiles on a spatial interval of several micrometers in the closed mode. The main aim of this work is the experimental verification of the concentration and potential profiles predicted by the model. In this work twotechniques for direct observation of spatial concentration and potential profiles in the electrolyte diode are presented. Two different methods were used: (i) visualization of the acid-base boundary using acid-base indicators and (ii) direct measurementsof electric potential profiles using the array of microelectrodes. As the presence of an indicator changes the properties of the system, there is a good agreement between modelling and experimental results only at relatively low values o

Czech name

Experimentální důkaz koncentračních a potenciálových profilů v elektrolytické diodě

Czech description

V práci jsou prezentovány naměřené profily elektrického potenciálu a vizualizované koncentrační profily (pomocí acidobazických indikátorů) v elektrolytické diodě. Experimentální výsledky jsou porovnány s předpovědí matem. modelu.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GP104%2F03%2FD005" target="_blank" >GP104/03/D005: Transport phenomena around the acid-base boundaries in spatially micro- and nano-structurized systems under the influence of an external electric field</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

Name of the periodical

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

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Volume of the periodical

135

Issue of the periodical within the volume

S1

Country of publishing house

CH - SWITZERLAND

Number of pages

7

Pages from-to

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UT code for WoS article

000251708300032

EID of the result in the Scopus database

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