Water behavior in perfluorinated ion-exchange membranes
Publication type: Journal Article
Publication date: 2003-03-01
scimago Q3
wos Q4
SJR: 0.308
CiteScore: 2.2
Impact factor: 1.1
ISSN: 09379347, 16137507
Atomic and Molecular Physics, and Optics
Abstract
The water molecules in acid and salt forms of perfluorinated sulfocation membranes (MF-4SK) have been investigated by employing nuclear magnetic resonance (NMR) and differential scanning calorimetry (DSC) techniques. The mobility parameters, correlation time and activation energy of water molecules were estimated from the results of the temperature dependence of1H relaxation time and compared with water self-diffusion coefficients obtained with pulsed field gradient NMR. The NMR data showed no frozen unbound water in membranes at low water content with an amount of water molecules per sulfonate groupn being comparable to the cationic hydration numberh o, whereas DSC thermograms showed peaks which are usually interpreted as a water fusion phenomenon in the membranes. The diffusion mechanism of water molecules below 260 K is different from that above 300 K due to additional hydrogen bonds in water clusters at the low-temperature region.
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GOST
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Volkov V. I. et al. Water behavior in perfluorinated ion-exchange membranes // Applied Magnetic Resonance. 2003. Vol. 25. No. 1. pp. 43-53.
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Volkov V. I., Vasilyak S., Park I. W., Kim H., Ju H., Volkov E. V., Choh S. H. Water behavior in perfluorinated ion-exchange membranes // Applied Magnetic Resonance. 2003. Vol. 25. No. 1. pp. 43-53.
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RIS
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TY - JOUR
DO - 10.1007/BF03166965
UR - http://link.springer.com/10.1007/BF03166965
TI - Water behavior in perfluorinated ion-exchange membranes
T2 - Applied Magnetic Resonance
AU - Volkov, V. I.
AU - Vasilyak, S.L
AU - Park, I. W.
AU - Kim, H.J.
AU - Ju, H.
AU - Volkov, E V
AU - Choh, S. H.
PY - 2003
DA - 2003/03/01
PB - Springer Nature
SP - 43-53
IS - 1
VL - 25
SN - 0937-9347
SN - 1613-7507
ER -
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BibTex (up to 50 authors)
Copy
@article{2003_Volkov,
author = {V. I. Volkov and S.L Vasilyak and I. W. Park and H.J. Kim and H. Ju and E V Volkov and S. H. Choh},
title = {Water behavior in perfluorinated ion-exchange membranes},
journal = {Applied Magnetic Resonance},
year = {2003},
volume = {25},
publisher = {Springer Nature},
month = {mar},
url = {http://link.springer.com/10.1007/BF03166965},
number = {1},
pages = {43--53},
doi = {10.1007/BF03166965}
}
Cite this
MLA
Copy
Volkov, V. I., et al. “Water behavior in perfluorinated ion-exchange membranes.” Applied Magnetic Resonance, vol. 25, no. 1, Mar. 2003, pp. 43-53. http://link.springer.com/10.1007/BF03166965.