Results 11 to 20 of about 32,428 (162)

Polyvinylimidazole-wrapped Halloysite Nanotubes for High Proton Conductivity in Polymer Electrolyte Membranes

open access: yesInternational Journal of Electrochemical Science, 2020
The construction of continuous proton transfer channels within a proton exchange membrane is an important and challenging task for the logical design of proton exchange membranes. Herein, inspired by the mechanism of moisture transport used by plants and
Xiaoyang Liu   +7 more
doaj   +1 more source

In Situ Growth of COF on PAN Nanofibers to Improve Proton Conductivity and Dimensional Stability in Proton Exchange Membranes

open access: yesEnergies, 2022
Perfluorosulfonic acid (PFSA) polymer is considered as a proton exchange membrane material with great potential. Nevertheless, excessive water absorption caused by abundant sulfonic acid groups makes PFSA have low dimensional stabilities.
Xiaoyu Meng   +7 more
doaj   +1 more source

Magnetic field alignment of stable proton-conducting channels in an electrolyte membrane

open access: yesNature Communications, 2019
Proton exchange membranes with short-pathway through-plane proton conductivity are attractive for proton exchange membrane fuel cells. Here the authors align proton conducting channels orthogonal to the plane of composite proton exchange membranes using ...
Xin Liu   +12 more
doaj   +1 more source

Preparation and Characterization of a Novel Sulfonated Titanium Oxide Incorporated Chitosan Nanocomposite Membranes for Fuel Cell Application

open access: yesMembranes, 2021
In this study, nano-TiO2 sulfonated with 1,3-propane sultone (STiO2) was incorporated into the chitosan (CS) matrix for the preparation of CS/STiO2 nanocomposite membranes for fuel cell applications.
Saad Ahmed   +8 more
doaj   +1 more source

Review on Modification of Sulfonated Poly (-ether-ether-ketone) Membranes Used as Proton Exchange Membranes

open access: yesMedžiagotyra, 2015
The proton exchange membrane fuel cell (PEMFC) is a type of modern power, but the traditional proton exchange membranes (PEM) of PEMFC are limited by high methanol permeability and water uptake.
Xiaomin GAO, Yonghua LIU, Jinlong LI
doaj   +1 more source

Composite membranes for proton exchange membrane fuel cells based on methyl methacrylate-co-maleimide /phosphotungstic acid [PDF]

open access: yesشیمی کاربردی روز, 2018
Poly(methyl methacrylate-co-nitrophenyl maleimide) (MMA-co-NMI) and poly(methyl‌‌‌‌ methacrylate-co-hydroxyphenyl maleimide)‌‌‌‌‌ (MMA-co-HMI) copolymers were synthesized using free radical polymerization of MMA with a new MI monomer containing phenyl ...
zahra seidzadeh   +3 more
doaj   +1 more source

Performance evaluation of polymer electrolyte membranes based on hydrogen sulfite ionic liquid for application in direct methanol fuel cell (DMFC)

open access: yesJournal of Ionic Liquids, 2023
Series of proton conductive membranes were prepared by mixing different weight ratio of 3-hexyl-1-methylimidazolium hydrogensulfite ([C6C1Imi][HSO3]), and N-hexyl-pyridinium hydrogensulfite ([C6Py][HSO3]) ionic liquids with poly vinyl alcohol (PVA ...
Hasna Wakrim   +7 more
doaj   +1 more source

Thermally triggered polyrotaxane translational motion helps proton transfer

open access: yesNature Communications, 2018
Proton exchange is critical in many applications, such as in conductive proton exchange membranes, but achieving fast proton exchange still remains a challenge.
Xiaolin Ge   +7 more
doaj   +1 more source

IN SITU PREPARED TiO2 NANOPARTICLES CROSS-LINKED SULFONATED PVA MEMBRANES WITH HIGH PROTON CONDUCTIVITY FOR DMFC

open access: yesQuímica Nova, 2016
Organic/inorganic membranes based on sulfonated poly(vinyl alcohol) (SPVA) and in situ prepared TiO2 nanoparticles nanocomposite membranes with various compositions were prepared to use as proton exchange membranes in direct membrane fuel cells.
Jignasa N. Solanki   +2 more
doaj   +1 more source

Development and Testing of Zinc Oxide Embedded Sulfonated Poly (Vinyl Alcohol) Nanocomposite Membranes for Fuel Cells

open access: yesCrystals, 2022
The sol-gel technique was adopted to synthesize the zinc oxide (ZnO) nanoparticles. Nano-sized ZnO particles are embedded in-situ to the poly(vinyl alcohol) (PVA) matrix to form the nanocomposite polymeric membranes.
Ahmed Al Otaibi   +8 more
doaj   +1 more source

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