Thermal Development of Free Volumes in Nafion Membrane
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10367919" target="_blank" >RIV/00216208:11320/17:10367919 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.12693/APhysPolA.132.1538" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.132.1538</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.132.1538" target="_blank" >10.12693/APhysPolA.132.1538</a>
Alternative languages
Result language
angličtina
Original language name
Thermal Development of Free Volumes in Nafion Membrane
Original language description
In this work we employed positron lifetime spectroscopy for investigation of the thermal development of free volumes in H+ Nafion membrane over a broad range of temperatures from -150 to 150 degrees C. Positron lifetime studies were combined with differential scanning calorimetry. Size distribution of free volumes was determined from ortho-positronium contribution to positron lifetime spectra. Our investigations revealed that the mean size of free volume holes strongly increases with temperature. On the other hand, the width of the size distribution and the positronium yield decreases with temperature. Transition temperatures corresponding to a change in the slope of the temperature dependence of ortho-positronium lifetime were identified. Results of positron lifetime spectroscopy agree well with the curve obtained by differential scanning calorimetry.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Acta Physica Polonica A
ISSN
0587-4246
e-ISSN
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Volume of the periodical
132
Issue of the periodical within the volume
5
Country of publishing house
PL - POLAND
Number of pages
5
Pages from-to
1538-1542
UT code for WoS article
000417870500023
EID of the result in the Scopus database
2-s2.0-85038004993