dc.contributor.author |
Abuin, GC
|
|
dc.contributor.author |
Nonjola, Patrick NT
|
|
dc.contributor.author |
Franceschini, E
|
|
dc.contributor.author |
Izraelevitch, F
|
|
dc.contributor.author |
Corti, H
|
|
dc.contributor.author |
Mathe, Mahlanyane K
|
|
dc.date.accessioned |
2010-09-29T10:29:21Z |
|
dc.date.available |
2010-09-29T10:29:21Z |
|
dc.date.issued |
2009-06 |
|
dc.identifier.citation |
Abuin, GC, Nonjola, P, Franceschini, E et al. 2010. Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells. III National and II Iberoamerican Congress "Hydrogen and Sustainable Energy Sources - HYFUSEN, San Juan, Argentina, 8-12 June 2009, pp 1 |
en |
dc.identifier.uri |
http://hdl.handle.net/10204/4405
|
|
dc.description |
III National and II Iberoamerican Congress "Hydrogen and Sustainable Energy Sources - HYFUSEN, San Juan, Argentina, 8-12 June 2009 |
en |
dc.description.abstract |
Recently, alkaline direct alcohol fuel cells have received increased attention for the following reasons: anion charge carrier (OH) movement from cathode to anode, opposite to the movement of protons in proton exchange membranes (PEM), may lower alcohol crossover and less expensive non platinum catalysts can be utilized. Quaternized polymers such as poly (arylene ether sulfones) are being developed and studied as possible membrane materials for application in alkaline fuel cells.In this work, quaternary ammonium polymers were synthesized in two step sequence, firstly, by chloromethylation of commercial poly-sulfone followed by amination process as reported previously. Different membrane properties such us water uptake, electrical conductivity and Young modulus were evaluated and compared to other membrane materials commonly employed in PEM fuel cells. A quartz crystal microbalance (QMC) was used to measure the water uptake of thin membranes of this material casted over the quartz crystals, and exposed to vapour at different water activities. Conductivity measurements as a function of the water activity were obtained by AC impedance method, while the mechanical properties of the membranes under different conditions (doped and un-doped) were evaluated by nano-indentation using an atomic force microscope (AFM). |
en |
dc.language.iso |
en |
en |
dc.subject |
Fuel cells |
en |
dc.subject |
Alkaline fuel cells |
en |
dc.subject |
Water uptake |
en |
dc.subject |
Mechanical properties |
en |
dc.subject |
Hydrogen |
en |
dc.subject |
Sustainable energy sources |
en |
dc.title |
Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells |
en |
dc.type |
Conference Presentation |
en |
dc.identifier.apacitation |
Abuin, G., Nonjola, P. N., Franceschini, E., Izraelevitch, F., Corti, H., & Mathe, M. K. (2009). Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells. http://hdl.handle.net/10204/4405 |
en_ZA |
dc.identifier.chicagocitation |
Abuin, GC, Patrick NT Nonjola, E Franceschini, F Izraelevitch, H Corti, and Mahlanyane K Mathe. "Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells." (2009): http://hdl.handle.net/10204/4405 |
en_ZA |
dc.identifier.vancouvercitation |
Abuin G, Nonjola PN, Franceschini E, Izraelevitch F, Corti H, Mathe MK, Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells; 2009. http://hdl.handle.net/10204/4405 . |
en_ZA |
dc.identifier.ris |
TY - Conference Presentation
AU - Abuin, GC
AU - Nonjola, Patrick NT
AU - Franceschini, E
AU - Izraelevitch, F
AU - Corti, H
AU - Mathe, Mahlanyane K
AB - Recently, alkaline direct alcohol fuel cells have received increased attention for the following reasons: anion charge carrier (OH) movement from cathode to anode, opposite to the movement of protons in proton exchange membranes (PEM), may lower alcohol crossover and less expensive non platinum catalysts can be utilized. Quaternized polymers such as poly (arylene ether sulfones) are being developed and studied as possible membrane materials for application in alkaline fuel cells.In this work, quaternary ammonium polymers were synthesized in two step sequence, firstly, by chloromethylation of commercial poly-sulfone followed by amination process as reported previously. Different membrane properties such us water uptake, electrical conductivity and Young modulus were evaluated and compared to other membrane materials commonly employed in PEM fuel cells. A quartz crystal microbalance (QMC) was used to measure the water uptake of thin membranes of this material casted over the quartz crystals, and exposed to vapour at different water activities. Conductivity measurements as a function of the water activity were obtained by AC impedance method, while the mechanical properties of the membranes under different conditions (doped and un-doped) were evaluated by nano-indentation using an atomic force microscope (AFM).
DA - 2009-06
DB - ResearchSpace
DP - CSIR
KW - Fuel cells
KW - Alkaline fuel cells
KW - Water uptake
KW - Mechanical properties
KW - Hydrogen
KW - Sustainable energy sources
LK - https://researchspace.csir.co.za
PY - 2009
T1 - Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells
TI - Characterization of anionic-exchange membranes for direct alcohol alkaline fuel cells
UR - http://hdl.handle.net/10204/4405
ER -
|
en_ZA |