The effects of water on the morphology and the swelling behavior of sulfonated poly(ether ether ketone) films [PDF]
, 2015 Thin sulfonated poly(ether ether ketone) films swell excessively in water. The extent of water-induced swelling is shown to be correlated with the optical anisotropy of the films, due to two distinct phenomena. Firstly, the optical anisotropy is directly
Akkilic, N. +3 more
core +5 more sources
Study of the variation of catalyst loading in cathode for SPEEK/CSMM membrane in direct methanol fuel cell (DMFC) [PDF]
, 2014 Variation of anode catalyst loading for modified sulfonated poly (ether ether ketone) (SPEEK) with charged surface modifying macromolecules (cSMM) membrane was studied, in order to get the higher performance in DMFC.
Jaafar, Juhana +3 more
core +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 +2 more
doaj +1 more source
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 +5 more
doaj +1 more source
Synthesis and characterization of polysulfone/layered double hydroxides nanocomposite membranes for fuel cell application [PDF]
, 2014 In the present study, sulfonated polysulfone (SPSU)/layered double hydroxide (LDH) composite membranes for use in proton exchange membrane fuel cells (PEMFCs) were investigated.
Galván Sierra, Juan Carlos +4 more
core +2 more sources
Photocurable electrolyte based on sulfonated poly(ether ether ketone) [PDF]
Solid State Ionics, 2011 Abstract 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. To investigate the proton transport property, a series of photocurable
Nagao, Yuki +4 more
openaire +1 more source
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. +5 more
openaire +2 more sources
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 +5 more
doaj +1 more source
Electrochemical and structural characterization of sulfonated polysulfone [PDF]
, 2015 We describe the synthesis, as well as the electrochemical and structural characterization, of sulfonated polysulfone intended for use in PEM fuel cells. Starting from a commercial polysulfone, we assessed the performance of these prepared ionomers using ...
Levenfeld Laredo, Belén +3 more
core +2 more sources