Swelling induced structural changes of a heterogeneous cation-exchange membrane analyzed by micro-computed tomography

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43931272" target="_blank" >RIV/49777513:23640/17:43931272 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22340/17:43914189

Result on the web

<a href="http://dx.doi.org/10.1016/j.memsci.2016.10.046" target="_blank" >http://dx.doi.org/10.1016/j.memsci.2016.10.046</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.memsci.2016.10.046" target="_blank" >10.1016/j.memsci.2016.10.046</a>

Result language

angličtina

Original language name

Swelling induced structural changes of a heterogeneous cation-exchange membrane analyzed by micro-computed tomography

Original language description

3D reconstruction of heterogeneous ion-exchange membranes when swollen in an appropriate electrolyte by micro-computed tomography (μ-CT) can provide important information on structural changes caused by their swelling or shrinkage and used this knowledge along with their electrochemical characteristics for optimization of the structure of these industrially important polymeric composites. We developed a methodology that allows scanning of swollen membrane samples while not being immersed in the solution, a condition necessary for μ- CT analysis of polymeric samples. Qualitative description of membrane swelling and shrinkage induced by volume-changing ion-exchange resin particles demonstrates their strong effect on structural changes in the membrane and identifies salt concentration as one of the major factors affecting the extent to which the membrane swells or shrinks. Experimental study focused on investigating the effect of salt concentration reveals that membrane volume decreases with increasing salt concentration. The dependence between the volume of the membrane and the concentration was well fitted with a natural logarithm. This fit can be used as an empirical equation for estimating the volumetric changes of the membrane caused by immersion in salt solutions of different concentrations.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

JOURNAL OF MEMBRANE SCIENCE

ISSN

0376-7388

e-ISSN

—

Volume of the periodical

525

Issue of the periodical within the volume

MAR 1 2017

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

195-201

UT code for WoS article

000392558000021

EID of the result in the Scopus database

2-s2.0-85007207151