Study the Transport Properties of Anion and Cation Exchange Membranes Toward Various Ions Using Chronopotentiometry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000059" target="_blank" >RIV/28676092:_____/17:N0000059 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study the Transport Properties of Anion and Cation Exchange Membranes Toward Various Ions Using Chronopotentiometry

Popis výsledku v původním jazyce

The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about influence of the counter ion on the transport phenomena of the membranes. The investigated samples include heterogeneous ion exchange membranes varying in the functionality of fixed charged groups, physical properties of the polymer and the preparation procedure. Chloride and nitrate were investigated as counter-ion in their sodium salts for anion exchange membranes while sodium, calcium, potassium and magnesium were selected as counter-ion in their chloride salts to study cation exchange membranes transport properties. First the current – voltage curve of an ion exchange membrane in a given solution was recorded to obtain the limiting current, then a constant current above the limiting current was used for chronopotentiometry measurement. In all the studied membranes the potential across the membrane remained constant for a time interval called the transition time τ, when a constant current was applied. Then the potential increased gradually to reach the steady state potential. The permselectivty and the transport number of a membrane was calculated using the corresponding transition time.

Název v anglickém jazyce

Study the Transport Properties of Anion and Cation Exchange Membranes Toward Various Ions Using Chronopotentiometry

Popis výsledku anglicky

The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about influence of the counter ion on the transport phenomena of the membranes. The investigated samples include heterogeneous ion exchange membranes varying in the functionality of fixed charged groups, physical properties of the polymer and the preparation procedure. Chloride and nitrate were investigated as counter-ion in their sodium salts for anion exchange membranes while sodium, calcium, potassium and magnesium were selected as counter-ion in their chloride salts to study cation exchange membranes transport properties. First the current – voltage curve of an ion exchange membrane in a given solution was recorded to obtain the limiting current, then a constant current above the limiting current was used for chronopotentiometry measurement. In all the studied membranes the potential across the membrane remained constant for a time interval called the transition time τ, when a constant current was applied. Then the potential increased gradually to reach the steady state potential. The permselectivty and the transport number of a membrane was calculated using the corresponding transition time.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/LO1418" target="_blank" >LO1418: Progresivní rozvoj Membránového inovačního centra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION

ISSN

1021-9986

e-ISSN

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Svazek periodika

36

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

IR - Íránská islámská republika

Počet stran výsledku

7

Strana od-do

81-87

Kód UT WoS článku

000408008100009

EID výsledku v databázi Scopus

2-s2.0-85029876967