Results 21 to 30 of about 893 (175)

Novel proton conducting core–shell PAMPS-PVBS@Fe2TiO5 nanoparticles as a reinforcement for SPEEK based membranes

Scientific Reports, 2021
In this study, new nanocomposite membranes from sulfonated poly (ether ether ketone) (SPEEK) and proton-conducting Fe2TiO5 nanoparticles are prepared by the solution casting method.
Parisa Salarizadeh, Mehran Javanbakht, Mohammad Bagher Askari, Khadijeh Hooshyari, Morteza Moradi, Hossein Beydaghi, Mohadese Rastgoo-Deylami, Morteza Enhessari   +7 more
doaj   +1 more source

Ultrathin Membrane With Ion‐Specific Gating Enables Interfacial Decoupling of Conductivity–Selectivity for Aqueous Flow Batteries

Angewandte Chemie, EarlyView.
An interfacial ion‐specific gating strategy shifts membrane design from ion diffusion within ion‐exchange channels to ion partitioning at the membrane–electrolyte interface, thereby decoupling selectivity from conductivity. The strategy underscores the pivotal yet underexplored role of the membrane–electrolyte interface, providing a broadly applicable ...
Di Mu, Yu Xiong, Feiran Wang, Jiafeng Lei, Fei Ai, Jun Fan, Yi‐Chun Lu   +6 more
wiley   +2 more sources

Composite membranes anchoring phosphotungstic acid by β-cyclodextrins modified halloysite nanotubes

Polymer Testing, 2021
Anchoring phosphotungstic acid (HPW) on insoluble inorganic fillers is a facile and effective approach to suppress its leakage in the proton exchange membrane.
Shaojian He, Yuna Ai, Wenxu Dai, Shaoxiong Zhai, Hao Song, Jun Lin   +5 more
doaj   +1 more source

Nanostructured Polyelectrolytes Based on SPEEK/TiO2 for Direct Ethanol Fuel Cells (DEFCs)

Polímeros, 2014
Proton-conducting hybrid membranes consisting of poly(ether ether ketone) sulfonated (SPEEK) and titanium oxide (TiO2) were prepared using the sol-gel technique for application in direct ethanol fuel cells.
José Carlos Dutra Filho, Tamirys Rodrigues dos Santos, Aílton de Souza Gomes   +2 more
doaj   +1 more source

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

Medžiagotyra, 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

Thermal stability of sulfonated Poly(Ether Ether Ketone) films

Macromolecular Materials and Engineering, 2016
Thin film and bulk, sulfonated poly(ether ether ketone) (SPEEK) have been subjected to a thermal treatment at 160–250 °C for up to 15 h. Exposing the films to 160 °C already causes partial desulfonation, and heating to temperatures exceeding 200 °C results in increased conjugation in the material, most likely via a slight cross-linking by H ...
Koziara, Beata T., Kappert, Emiel J., Ogieglo, Wojciech, Nijmeijer, Kitty, Hempenius, Mark A., Benes, Nieck E.   +5 more
openaire   +2 more sources

Photocurable electrolyte based on sulfonated poly(ether ether ketone) [PDF]

Solid State Ionics, 2011
Photocurable electrolytes were prepared by mixing proton-conductive polymer sulfonated poly(ether ether ketone) (SPEEK), cross-linking monomer divinyl sulfone (DVS), photoinitiator phenylbis(2, 4, 6-trimethylbenzoyl)phosphineoxide (PI), dimethylacetamide (DMA), and ethanol.
Nagao, Yuki, Iwadera, Tomoaki, Sata, Noriko, Iguchi, Fumitada, Yugami, Hiroo   +4 more
openaire   +1 more source

SPEEK and SPPO Blended Membranes for Proton Exchange Membrane Fuel Cells

Membranes, 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, Abdallah Shanableh, Shabnam Shahida, Mushtaq Hussain Lashari, Suryyia Manzoor, Javier Fernandez   +5 more
doaj   +1 more source

Construction of Chemically Crosslinked Sulfonated Poly(aryl ether ketone) Networks for Polymer Electrolyte Membranes

Energies
Polymer electrolyte membranes serving in proton exchange membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs) must possess sufficient mechanical–dimensional stability and excellent proton conducting capacity.
Zhenchao Liu, Bing Liang, Zizhen Xie, Wei Hu, Baijun Liu   +4 more
doaj   +1 more source

Anchoring Water Soluble Phosphotungstic Acid by Hybrid Fillers to Construct Three-Dimensional Proton Transport Networks

Membranes, 2021
Phosphotungstic acid (HPW)-filled composite proton exchange membranes possess high proton conductivity under low relative humidity (RH). However, the leaching of HPW limits their wide application.
Shaojian He, Zhongrui Lu, Wenxu Dai, Kangning Yang, Yang Xue, Xiaoyang Jia, Jun Lin   +6 more
doaj   +1 more source