About: Effect of Water on the Size Distribution of Free-Volume Holes in Nafion Membrane

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.4028/www.scientific.net/MSF.733.49
Description	Positron lifetime spectroscopy was employed for investigation of the size distribution of free volume holes in Nafion N-1110 membrane. Size distribution of free volume holes was determined in the as-received and dried membrane and in the membrane immersed in water at various temperatures. It was found that absorbed water causes reduction of the mean size of free volume holes and increase of their dispersion and concentration. This indicates that free volumes are split by swollen ionic clusters absorbing water. The kinetics of water uptake and the amount of absorbed solvent were determined by in-situ measurement of the weight increase. Positron lifetime spectroscopy was employed for investigation of the size distribution of free volume holes in Nafion N-1110 membrane. Size distribution of free volume holes was determined in the as-received and dried membrane and in the membrane immersed in water at various temperatures. It was found that absorbed water causes reduction of the mean size of free volume holes and increase of their dispersion and concentration. This indicates that free volumes are split by swollen ionic clusters absorbing water. The kinetics of water uptake and the amount of absorbed solvent were determined by in-situ measurement of the weight increase. (en)
Title	Effect of Water on the Size Distribution of Free-Volume Holes in Nafion Membrane Effect of Water on the Size Distribution of Free-Volume Holes in Nafion Membrane (en)
skos:prefLabel	Effect of Water on the Size Distribution of Free-Volume Holes in Nafion Membrane Effect of Water on the Size Distribution of Free-Volume Holes in Nafion Membrane (en)
skos:notation	RIV/00216208:11320/13:10189623!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GBP108/12/G043), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Procházka, Ivan Čížek, Jakub Barnovská, Zuzana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	71834
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10189623
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	free volume; nafion; positronium; positron annihilation (en)
http://linked.open.../riv/klicoveSlovo	free volume nafion positronium positron annihilation
http://linked.open...ontrolniKodProRIV	[7559EB88BE90]
http://linked.open...v/mistoKonaniAkce	Smolenice
http://linked.open...i/riv/mistoVydani	STAFA-ZURICH
http://linked.open...i/riv/nazevZdroje	Materials Science Forum
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Procházka, Ivan Čížek, Jakub Barnovská, Zuzana Sourek, Michal
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000315535700010
http://linked.open.../riv/zahajeniAkce	2011-09-05 (xsd:date)
issn	0255-5476
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/MSF.733.49
http://purl.org/ne...btex#hasPublisher	TRANS TECH PUBLICATIONS LTD
http://localhost/t...ganizacniJednotka	11320

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