Results 1 to 10 of about 32,428 (162)

CytroCell@Nafion: Enhanced Proton Exchange Membranes [PDF]

open access: yesGlobal Challenges
We investigate the use of lemon CytroCell nanocellulose as a new biobased filler for Nafion‐based proton exchange membranes. Pristine and composite membranes are prepared via casting and solvent evaporation technique.
Daria Talarico   +12 more
doaj   +4 more sources

Fabrication and Characterization of Proton Conductive Membranes Based on Poly(methyl methacrylate-co-maleic anhydride) [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2020
In this study, proton conductive composite membranes were produced by using a poly(methylmethacrylate-co-maleic anhydride) (P(MMA-co-MAH)) copolymer and phosphotungstic Acid (PWA) as an additive of the proton conductive agent.
Mohammad Nasiri   +3 more
doaj   +1 more source

Research progress of high temperature proton exchange membranes applied in fuel cells

open access: yesCailiao gongcheng, 2021
The fuel cell technology is a highly-efficient clean energy technology which can alleviate the power and environmental problems. Proton exchange membrane fuel cell (PEMFC) is an important type of fuel cell, of which proton exchange membrane is the key ...
SUN Peng   +6 more
doaj   +1 more source

SPEEK and SPPO Blended Membranes for Proton Exchange Membrane Fuel Cells

open access: yesMembranes, 2022
In fuel cell applications, the proton exchange membrane (PEM) is the major component where the balance among dimensional stability, proton conductivity, and durability is a long-term trail.
Muhammad Imran Khan   +5 more
doaj   +1 more source

Novel PVA/La2Ce2O7 hybrid nanocomposite membranes for application in proton exchange membrane fuel cells [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
Proton exchange membrane fuel cells (PEMFCs) are electrochemical devices that show the highest power densities compared to the other type of fuel cell.
Mehran Javanbakht   +3 more
doaj   +1 more source

Recent Approaches to Achieve High Temperature Operation of Nafion Membranes

open access: yesEnergies, 2023
A proton exchange membrane fuel cell (PEMFC), as an efficient energy conversion device, has many advantages, such as high energy conversion efficiency and environmentally friendly zero emissions, and is expected to have great potential for addressing the
Guoxiao Xu   +5 more
doaj   +1 more source

Surface-coupled proton exchange of a membrane-bound proton acceptor [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
Proton-transfer reactions across and at the surface of biological membranes are central for maintaining the transmembrane proton electrochemical gradients involved in cellular energy conversion. In this study, fluorescence correlation spectroscopy was used to measure the local protonation and deprotonation rates of single pH-sensitive ...
Sandén, Tor   +3 more
openaire   +3 more sources

Branched Sulfonimide-Based Proton Exchange Polymer Membranes from Poly(Phenylenebenzopheneone)s for Fuel Cell Applications

open access: yesMembranes, 2021
Improved proton conductivity and high durability are now a high concern for proton exchange membranes (PEMs). Therefore, highly proton conductive PEMs have been synthesized from branched sulfonimide-based poly(phenylenebenzophenone) (SI-branched PPBP ...
Sabuj Chandra Sutradhar   +6 more
doaj   +1 more source

Membrane sodium-proton exchange and primary hypertension. [PDF]

open access: yesHypertension, 1993
Recent studies have revealed that an enhancement of sodium-proton exchange is a frequently observed ion transport abnormality in essential hypertension. An altered antiport activity not only is measurable in blood cells of hypertensive subjects ex vivo but also is detectable in skeletal muscle in vivo. Several lines of argument suggest that the altered
Rosskopf, D., Düsing, R., Siffert, W.
openaire   +3 more sources

Sulfonated electrospun polystyrene as cation exchange membranes for fuel cells

open access: yesEnergy Reports, 2020
Fuel cells are one of important renewable energy sources represent scientific trends of contemporary researches that seek to find better alternatives to solve the negatives of organic fuels and biological damage to humans, environment and atmosphere. The
Noor M. Jalal   +3 more
doaj   +1 more source

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