scholarly journals Novel Proton Exchange Membranes Based on Sulfonated Cellulose Acetate for Fuel Cell Applications: Preparation and Characterization

2016 ◽  
pp. 10150-10171 ◽  
Author(s):  
M S. Mohy Eldin ◽  
Keyword(s):  
Fuel Cell ◽  
Cellulose Acetate ◽  
Proton Exchange Membranes ◽  
Proton Exchange

scholarly journals Synthesis and characterization of PVA/sPTA proton exchange membranes for fuel cell applications

2021 ◽  
Vol 1046 (1) ◽  
pp. 012011
Author(s):  
M M Gomaa ◽  
Y S Elsharkawy ◽  
M O Abdel-Hamed ◽  
E E Abdel-Hady
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Synthesis And Characterization

Development of robust proton exchange membranes for fuel cell applications by the incorporation of sulfonated β-cyclodextrin into crosslinked sulfonated poly(vinyl alcohol)

2018 ◽  
Vol 286 ◽  
pp. 350-364 ◽  
Author(s):  
Balappa B. Munavalli ◽  
Satishkumar R. Naik ◽  
Mahadevappa Y. Kariduraganavar
Keyword(s):  
Fuel Cell ◽  
Vinyl Alcohol ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Poly Vinyl Alcohol ◽  
Sulfonated Poly

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

scholarly journals Recent Progress in the Development of Aromatic Polymer-Based Proton Exchange Membranes for Fuel Cell Applications

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1061 ◽  
Author(s):  
Raja Rafidah R. S. ◽  
Rashmi W. ◽  
Khalid M. ◽  
Wong W. Y. ◽  
Priyanka J.
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Proton Conductivity ◽  
Elevated Temperatures ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Polymer Chains ◽  
Membrane Electrode ◽  
Aryl Ether

Proton exchange membranes (PEMs) play a pivotal role in fuel cells; conducting protons from the anode to the cathode within the cell’s membrane electrode assembles (MEA) separates the reactant fuels and prevents electrons from passing through. High proton conductivity is the most important characteristic of the PEM, as this contributes to the performance and efficiency of the fuel cell. However, it is also important to take into account the membrane’s durability to ensure that it canmaintain itsperformance under the actual fuel cell’s operating conditions and serve a long lifetime. The current state-of-the-art Nafion membranes are limited due to their high cost, loss of conductivity at elevated temperatures due to dehydration, and fuel crossover. Alternatives to Nafion have become a well-researched topic in recent years. Aromatic-based membranes where the polymer chains are linked together by aromatic rings, alongside varying numbers of ether, ketone, or sulfone functionalities, imide, or benzimidazoles in their structures, are one of the alternatives that show great potential as PEMs due totheir electrochemical, mechanical, and thermal strengths. Membranes based on these polymers, such as poly(aryl ether ketones) (PAEKs) and polyimides (PIs), however, lack a sufficient level of proton conductivity and durability to be practical for use in fuel cells. Therefore, membrane modifications are necessary to overcome their drawbacks. This paper reviews the challenges associated with different types of aromatic-based PEMs, plus the recent approaches that have been adopted to enhance their properties and performance.

The Progress of Hybrid Proton Exchange Membranes Prepared by SPAEKs for Direct Methanol Fuel Cells

2012 ◽  
Vol 512-515 ◽  
pp. 1442-1445
Author(s):  
Hai Dan Lin ◽  
He Zhang ◽  
Xiao Ying Yang
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Direct Methanol Fuel Cells ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Layer By Layer ◽  
Aryl Ether ◽  
Fuel Cell Performance ◽  
Nanocomposite Layer ◽  
Direct Methanol

This review summarizes efforts in developing proton exchange membranes (PEMs) with excellent electrochemical fuel cell performance prepared by SPAEK in proton exchange membrane fuel cell (PEMFC) applications. Over the past few decades, much polyelectrolyte has been extensively studied to improve the properties as alternatives with lower cost and considerable performances for PEMFC. Sulfonated poly(aryl ether ketone) (SPAEK), fell into this category, which offers the attribute of adjustable proton conductivity, excellent mechanical and thermal stability. The discussion will cover crosslinking, organic-inorganic nanocomposite, layer-by-layer approaches.

Sign in / Sign up

Export Citation Format

Share Document