Proton Exchange Membranes Based on Polymeric Ionic Liquids for Fuel Cell Applications

2016 ◽  
Vol 75 (14) ◽  
pp. 589-596 ◽  
Author(s):  
A. Ortiz Sainz De Aja ◽  
M. Diaz Vejo ◽  
I. Ortiz Uribe
Keyword(s):  
Ionic Liquids ◽  
Fuel Cell ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Polymeric Ionic Liquids

New application of supported ionic liquids membranes as proton exchange membranes in microbial fuel cell for waste water treatment

2015 ◽  
Vol 279 ◽  
pp. 115-119 ◽  
Author(s):  
F.J. Hernández-Fernández ◽  
A. Pérez de los Ríos ◽  
F. Mateo-Ramírez ◽  
C. Godínez ◽  
L.J. Lozano-Blanco ◽  
...  
Keyword(s):  
Waste Water ◽  
Ionic Liquids ◽  
Fuel Cell ◽  
Water Treatment ◽  
Microbial Fuel Cell ◽  
Waste Water Treatment ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Supported Ionic Liquids

scholarly journals Pore-Filled Proton-Exchange Membranes with Fluorinated Moiety for Fuel Cell Application

Energies ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4433
Author(s):  
Hyeon-Bee Song ◽  
Jong-Hyeok Park ◽  
Jin-Soo Park ◽  
Moon-Sung Kang
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Continuous Process ◽  
Oxidation Stability ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Cross Linking ◽  
Polymer Backbone ◽  
Transfer Resistance ◽  
Exchange Membrane

Proton-exchange membrane fuel cells (PEMFCs) are the heart of promising hydrogen-fueled electric vehicles, and should lower their price and further improve durability. Therefore, it is necessary to enhance the performances of the proton-exchange membrane (PEM), which is a key component of a PEMFC. In this study, novel pore-filled proton-exchange membranes (PFPEMs) were developed, in which a partially fluorinated ionomer with high cross-linking density is combined with a porous polytetrafluoroethylene (PTFE) substrate. By using a thin and tough porous PTFE substrate film, it was possible to easily fabricate a composite membrane possessing sufficient physical strength and low mass transfer resistance. Therefore, it was expected that the manufacturing method would be simple and suitable for a continuous process, thereby significantly reducing the membrane price. In addition, by using a tri-functional cross-linker, the cross-linking density was increased. The oxidation stability was greatly enhanced by introducing a fluorine moiety into the polymer backbone, and the compatibility with the perfluorinated ionomer binder was also improved. The prepared PFPEMs showed stable PEMFC performance (as maximum power density) equivalent to 72% of Nafion 212. It is noted that the conductivity of the PFPEMs corresponds to 58–63% of that of Nafion 212. Thus, it is expected that a higher fuel cell performance could be achieved when the membrane resistance is further lowered.

scholarly journals Design of Promising Green Cation-Exchange-Membranes-Based Sulfonated PVA and Doped with Nano Sulfated Zirconia for Direct Borohydride Fuel Cells

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4205
Author(s):  
Marwa H. Gouda ◽  
Noha A. Elessawy ◽  
Sami A. Al-Hussain ◽  
Arafat Toghan
Keyword(s):  
Fuel Cell ◽  
Sulfated Zirconia ◽  
Low Cost ◽  
Composite Membranes ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Poly Vinyl Alcohol ◽  
Binary Polymer ◽  
Physicochemical Features ◽  
Direct Borohydride Fuel Cells

The direct borohydride fuel cell (DBFC) is a low-temperature fuel cell that requires the development of affordable price and efficient proton exchange membranes for commercial purposes. In this context, super-acidic sulfated zirconia (SO4ZrO2) was embedded into a cheap and environmentally friendly binary polymer blend, developed from poly(vinyl alcohol) (PVA) and iota carrageenan (IC). The percentage of SO4ZrO2 ranged between 1 and 7.5 wt.% in the polymeric matrix. The study findings revealed that the composite membranes’ physicochemical features improved by adding increasing amounts of SO4ZrO2. In addition, there was a decrease in the permeability and swelling ratio of the borohydride membranes as the SO4ZrO2 weight% increased. Interestingly, the power density increased to 76 mW cm−2 at 150 mA cm−2, with 7.5 wt.% SO4ZrO2, which is very close to that of Nafion117 (91 mW cm−2). This apparent selectivity, combined with the low cost of the eco-friendly fabricated membranes, points out that DBFC has promising future applications.

Preparation of organic–inorganic nanocomposite membranes as proton exchange membranes for direct dimethyl ether fuel cell application

Desalination ◽  
2006 ◽  
Vol 200 (1-3) ◽  
pp. 584-585 ◽  
Author(s):  
Seung-Eun Nam ◽  
Sun-A Song ◽  
Sang-Gyun Kim ◽  
Sun-Mi Park ◽  
Yongku Kang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Dimethyl Ether ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Nanocomposite Membranes ◽  
Fuel Cell Application
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