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- Author:
- Ghalloussi, R.; Garcia-Vasquez, W.; Chaabane, L.; Dammak, L.; Larchet, C.; Deabate, S.V.; Nevakshenova, E.; Nikonenko, V.; Grande, D.
- Source:
- Journal of membrane science 2013 v.436 pp. 68-78
- ISSN:
- 0376-7388
- Subject:
- Fourier transform infrared spectroscopy; X-radiation; anion exchange; artificial membranes; cation exchange; contact angle; electrical conductivity; energy; energy-dispersive X-ray analysis; hydrophobicity; mathematical models; nanoparticles; polymers; scanning electron microscopy; water content
- Abstract:
- ... Understanding the ageing mechanisms of ion-exchange membranes (IEMs) used in electrodialysis (ED) for food industry applications constitutes a major challenge. In this regard, four used membranes (two cationic ones and two anionic ones) were analyzed at the end of their useful life (2 years of ED operation) and compared with their respective fresh new samples to assess the evolution of their struc ...
- DOI:
- 10.1016/j.memsci.2013.02.011
-
http://dx.doi.org/10.1016/j.memsci.2013.02.011
- Author:
- Vrána, Jiří; Charvát, Jiří; Mazúr, Petr; Bělský, Petr; Dundálek, Jan; Pocedič, Jaromír; Kosek, Juraj
- Source:
- Journal of membrane science 2018 v.552 pp. 202-212
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; batteries; dielectric spectroscopy; hydrophilicity; ion exchange capacity; ions; oxidation; physiological transport; polymers; vanadium
- Abstract:
- ... A series of perfluorosulfonic membranes is screened for application in vanadium redox flow batteries (VRFB): membranes of constant thickness 50 µm with different ion-exchange capacities ranging from 0.56 to 1.15 mol eq. g⁻¹. Diffusion flux of each vanadium ion occurring in VRFB electrolytes through each examined membrane is measured by UV/Vis spectroscopy. Permeation of V²⁺ ions contributes most t ...
- DOI:
- 10.1016/j.memsci.2018.02.011
-
http://dx.doi.org/10.1016/j.memsci.2018.02.011
- Author:
- Delhorbe, Virginie; Thiry, Xavier; Cailleteau, Céline; Mourier, Elise; Bathfield, Maël; Chikh, Linda; Fichet, Odile; Ameduri, Bruno; Mercier, Régis; Vidal, Serge; Augier, Lionel; Espuche, Eliane; Gouanvé, Fabrice; Gebel, Gérard; Morin, Arnaud
- Source:
- Journal of membrane science 2012 v.389 pp. 57-66
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; cell membranes; differential scanning calorimetry; electrolytes; fuel cells; hexane; infrared spectroscopy; polymers; scanning electron microscopy; thermogravimetry
- Abstract:
- ... The purpose of this study has been to develop new proton-exchange membranes based on semi-interpenetrating polymer network (semi-IPN) architectures for application in polymer electrolyte fuel cells. A series of semi-IPNs combining a fluorinated hexane network and a linear sulfonated poly(aryl ether ether ketone) (SPEEK) has been obtained by varying the SPEEK content from 50 to 80wt.%. A telechelic ...
- DOI:
- 10.1016/j.memsci.2011.10.015
-
http://dx.doi.org/10.1016/j.memsci.2011.10.015
- Author:
- van Rooyen, L.J.; Karger-Kocsis, J.; Vorster, O.C.; Kock, L.D.
- Source:
- Journal of membrane science 2013 v.430 pp. 203-210
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; coatings; electron microscopy; epoxides; gases; glass; graphene; helium; permeability; polymers; spectrometers; tomography
- Abstract:
- ... Glass flake modified epoxy coatings were formulated as a possible barrier coating to prevent or limit the leak of radioactive gases generated by irradiated graphite. Helium gas was chosen as the test gas. The reduction of the helium gas permeability was evaluated using a helium leak detector fitted with a mass spectrometer. Both electron microscopy and microfocus x-ray tomography were used to char ...
- DOI:
- 10.1016/j.memsci.2012.11.083
-
http://dx.doi.org/10.1016/j.memsci.2012.11.083
- Author:
- Plackett, David; Siu, Ana; Li, Qingfeng; Pan, Chao; Jensen, Jens Oluf; Nielsen, Søren Fæster; Permyakova, Anastasia A.; Bjerrum, Niels J.
- Source:
- Journal of membrane science 2011 v.383 no.1-2 pp. 78-87
- ISSN:
- 0376-7388
- Subject:
- X-radiation; ambient temperature; artificial membranes; cations; clay; dimensional stability; electric power; fuel cells; hydrogen; hydrogen bonding; infrared spectroscopy; ion exchange; permeability; phosphoric acid; polymers; relative humidity; salts; tensile strength
- Abstract:
- ... Good dispersion of modified laponite clay was achieved in polybenzimidazole (PBI) solutions which, when cast and allowed to dry, resulted in homogeneous and transparent composite membranes containing up to 20wt% clay in the polymer. The clay was organically modified using a series of ammonium and pyridinium salts with varying polarity and hydrogen-bonding capacity. Clay modification by ion-exchang ...
- DOI:
- 10.1016/j.memsci.2011.08.038
-
http://dx.doi.org/10.1016/j.memsci.2011.08.038
- Author:
- Li, Ping; Wu, Wenjia; Liu, Jindun; Shi, Benbing; Du, Yuqian; Li, Yifan; Wang, Jingtao
- Source:
- Journal of membrane science 2018 v.555 pp. 327-336
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; atomic force microscopy; graphene oxide; nanosheets; oxidation; polymers; water uptake
- Abstract:
- ... This study is aimed at exploiting the potential of graphene oxide (GO) as inorganic filler of hybrid membranes for efficient proton transfer. A series of GO nanosheets with different lateral size and oxidation degree are incorporated into Nafion. Atomic force microscopy (AFM) and small-angle X-ray scattering (SAXS) characterization of the obtained membranes demonstrates the effects of the size and ...
- DOI:
- 10.1016/j.memsci.2018.03.066
-
https://dx.doi.org/10.1016/j.memsci.2018.03.066
- Author:
- Delhorbe, Virginie; Reijerkerk, Sander R.; Cailleteau, Céline; Bathfield, Maël; Chikh, Linda; Gouanve, Fabrice; Ogier, Lionel; Espuche, Eliane; Ameduri, Bruno; Vidal, Serge; Gebel, Gérard; Morin, Arnaud; Fichet, Odile
- Source:
- Journal of membrane science 2013 v.429 pp. 168-180
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; crosslinking; electrolytes; fuel cells; functional properties; hydrogen; oxygen; permeability; polymers; propane; sorption; water vapor
- Abstract:
- ... Original membranes based on an interpenetrating polymer network (IPN) architecture combining a poly(2-acrylamido-2-methyl-1-propane sulfonic acid) (AMPS) network and a fluorinated network were synthesized. The AMPS weight compositions were varied from 50 to 70wt%. The first network was achieved by radical copolymerization of AMPS with a fluorinated telechelic diacrylate while the second one was ob ...
- DOI:
- 10.1016/j.memsci.2012.11.032
-
http://dx.doi.org/10.1016/j.memsci.2012.11.032
- Author:
- Best, Stephen P.; Kolev, Spas D.; Gabriel, June R.P.; Cattrall, Robert W.
- Source:
- Journal of membrane science 2016 v.497 pp. 377-386
- ISSN:
- 0376-7388
- Subject:
- X-radiation; X-ray diffraction; absorption; artificial membranes; cobalt; geometry; ligands; oils; oligomerization; polymerization; polymers; solvents; spectral analysis
- Abstract:
- ... The instability and poor reproducibility of polymer inclusion membranes (PIMs) containing Cyanex 272 (di(2,4,4-trimethylpentyl)phosphinic acid, HCyanex) for the extraction of cobalt(II) have been investigated using chemical and spectroscopic means. The differing transport properties of the cobalt:Cyanex adducts, and the formation of deep blue oils exuded from the surface of the PIM under particula ...
- DOI:
- 10.1016/j.memsci.2015.09.046
-
https://dx.doi.org/10.1016/j.memsci.2015.09.046
- Author:
- Luu, Dinh Xuan; Kim, Dukjoon
- Source:
- Journal of membrane science 2013 v.430 pp. 37-43
- ISSN:
- 0376-7388
- Subject:
- Fourier transform infrared spectroscopy; X-radiation; artificial membranes; electrolytes; fuel cells; methanol; permeability; polymers; thermogravimetry
- Abstract:
- ... An organosiloxane polymer network (OSPN) was pre-synthesized from 3-glycidyloxypropyltrimethoxysilane and 1-hydroxyethane-1,1-diphosphonic acid, and a pendant-sulfonated poly(arylene ether ketone) (PSPAEK) from the intermediate containing carboxylic acid. Proton-conducting polymer electrolyte membranes were prepared in semi-interpenetrating polymer network (semi-IPN) form from PSPAEK and OSPN. The ...
- DOI:
- 10.1016/j.memsci.2012.12.015
-
http://dx.doi.org/10.1016/j.memsci.2012.12.015
- Author:
- Dong, Xue; Lv, Dong; Zheng, Jifu; Xue, Boxin; Bi, Weihui; Li, Shenghai; Zhang, Suobo
- Source:
- Journal of membrane science 2017 v.535 pp. 301-311
- ISSN:
- 0376-7388
- Subject:
- X-radiation; artificial membranes; cations; hydrophobicity; methyl iodide; models; nuclear magnetic resonance spectroscopy; phenols; polymers; transmission electron microscopy
- Abstract:
- ... To design and construct high ionic conductive anion exchange membranes (AEMs), tetra-pyrrolidinium-based block poly(arylene ether sulfone)s were synthesized. Pyrrolidinium groups were densely and controllably introduced into the polymer scaffold using a novel tetra-functionalized monomer, 4, 4′-oxybis (2,6-bis(pyrrolidinyl-1-methyl) phenol) (OBBPYP), which was synthesized via the Mannich reaction. ...
- DOI:
- 10.1016/j.memsci.2017.04.054
-
https://dx.doi.org/10.1016/j.memsci.2017.04.054