Results 41 to 50 of about 32,428 (162)

Synthesis of Highly Sulfonated Poly(arylene ether) Containing Multiphenyl for Proton Exchange Membrane Materials

open access: yesInternational Journal of Polymer Science, 2016
A series of sterically hindered, sulfonated, poly(arylene ether) polymers were synthesized by nucleophilic polycondensation reaction using 4,4′′′′-difluoro-3,3′′′′-bistrifluoromethyl-2′′,3′′,5′′,6′′-tetraphenyl-[1,1′;4′,1′′;4′′,1′′′;4′′′,1 ...
Yi-Chiang Huang   +7 more
doaj   +1 more source

Production and Characterization of Cellulose Acetate-Graphene Oxide Composite Membrane as Proton Exchange Membrane Fuel Cell

open access: yesIndonesian Journal of Chemistry
The global energy crisis caused by dependence on fossil fuels has accelerated the search for renewable and sustainable energy sources, such as the proton exchange membrane fuel cell (PEMFC).
Riki Haryanto   +3 more
doaj   +1 more source

Ion-Exchange Membranes Based on Polynorbornenes with Fluorinated Imide Side Chain Groups

open access: yesInternational Journal of Chemical Engineering, 2012
The electrochemical characteristics of cation-exchange membranes based on polynorbornenes with fluorinated and sulfonated dicarboximide side chain groups were reported.
Arlette A. Santiago   +4 more
doaj   +1 more source

Sulfonated poly (arylene ether sulfone) proton exchange membranes for fuel cell applications

open access: yesGreen Processing and Synthesis, 2015
Sulfonated poly (arylene ether sulfone) membranes were synthesized by direct copolymerization of 4,4-bis (4-hydroxyphenyl) valeric acid, 4,4′-difluorodiphenyl sulfone and synthesized sulfonated 6F-bisphenol-A/bisphenol-A as novel proton exchange ...
Kiran Vaishnav, Gaur Bharti
doaj   +1 more source

Nanofiber‐based polymer electrolyte membranes for fuel cells

open access: yesCarbon Energy
Developing low‐cost and high‐performance nanofiber‐based polyelectrolyte membranes for fuel cell applications is a promising solution to energy depletion.
Ning Liu   +7 more
doaj   +1 more source

Advances in nanocellulose proton conductivity and applications in polymer electrolyte membrane fuel cells

open access: yesNext Materials
Fuel cells, crucial for the advancement of hydrogen-based energy devices, require novel materials for proton exchange membrane (PEM) that are more cost-effective and sustainable. At the core of such an energy source is the proton exchange membrane, which
Mehvish Shah, Najeeb Ud Din Hakim
doaj   +1 more source

Outstanding proton conductivity over wide temperature and humidity ranges and enhanced mechanical, thermal stabilities for surface-modified MIL-101-Cr-NH2/Nafion composite membranes

open access: yesGreen Energy & Environment
High-performance proton exchange membranes are of great importance for fuel cells. Here, we have synthesized polycarboxylate plasticizer modified MIL-101-Cr-NH2 (PCP-MCN), a kind of hybrid metal−organic framework, which exhibits a superior proton ...
Xu Li   +9 more
doaj   +1 more source

Proton transport in proton exchange membranes

open access: yes, 2007
This work investigated several proton exchange membranes (PEMs): perfluorosulfonic acid-based polymers (Nafion®), sulfonated poly(ether ether ketone) (S-PEEK), radiation-grafted ethylenetetrafluoroethylene-grafted-poly(styrene sulfonic) acid (ETFE-g-PSSA), sulfonated trifluorostyrene-co-substituted trifluorostyrene (BAM®), sulfonated polystyrene-b-poly(
openaire   +1 more source

Enhanced electrochemical performance and thermomechanical stability of nafion/sulfonated clay-carbon nanotube nanocomposite membranes for high-performance fuel cells under challenging conditions

open access: yesMaterials for Renewable and Sustainable Energy
The development of high-performance proton exchange membranes (PEMs) is crucial for advancing fuel cell technology, particularly under demanding operating conditions.
Isabella Nicotera   +5 more
doaj   +1 more source

Proton Exchange Membrane Fuel Cells

open access: yesPlatinum Metals Review, 1997
Proton exchange membrane fuel cells operating on hydrogen/air are being considered as high efficiency, low pollution power generators for stationary and transportation applications. There have been many successful demonstrations of this technology in recent years. However, to penetrate these markets the cost of the fuel cell stack must be reduced. This
openaire   +1 more source

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