Results 61 to 70 of about 6,237 (218)
Advanced Functional Materials, Volume 36, Issue 32, 20 April 2026.Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller +6 more
wiley +1 more source
Materials for Renewable and Sustainable EnergySulfonated poly (ether ether ketone) (SPEEK) has received substantial attention for its potential to improve the electrochemical behavior and thermomechanical capabilities of direct methanol fuel cells. This study examines how the integration by solution
Mohamed Amine Ben Moussa +8 more
doaj +1 more source
Chemical Engineering Journal Advances, 2023 This study presents the potential of sulfonated poly (ether-ether-ketone)/ poly (vinylidene fluorideco-hexafluoro propylene)/SiO2 (SPEEK/PVdF-HFP/SiO2) composite proton exchange membrane for the use of microbial fuel cell.
Jagdeep Kumar Nayak +2 more
doaj +1 more source
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
Porphyrin/sPEEK Membranes with Improved Conductivity and Durability for PEFC Technology [PDF]
ACS Applied Energy Materials, 2018 Advanced composite membranes have been obtained by incorporation of the meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) into a sulfonated poly(etheretherketone) (sPEEK). The presence of porphyrins in their monomeric, dimeric, and aggregated forms into the membrane ionic domains have been investigated by static and time-resolved spectroscopic ...
Maria A Castriciano +6 more
openaire +8 more sources
Materials for Renewable and Sustainable EnergyAlternative proton exchange membranes (PEMs) with high proton conductivity must be fabricated at reasonable costs to qualify as commercially used proton-exchange membrane fuel cells (PEMFCs).
Mohamed A. Ben Ali +5 more
doaj +1 more source
International Journal of Electrochemical Science, 2015 A type of poly(aminobenzene sulfonic)phosphazene derivative grafted SPEEK was synthesized which were confirmed by FT-IR and NMR analysis. And a series of grafted SPEEK proton exchange membranes with 65% sulfonation degree were prepared.
Zhengping Zhao +3 more
doaj +1 more source
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
Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.Here the authors present the development of novel and inexpensive membranes for Li salt electro‐electrodialysis based on sulphonamide‐based polyelectrolyte for LiOH production by electrodialysis. The membranes are self‐standing Li‐selective and low‐fluorine content in comparison with state‐of‐the art benchmark (Nafion 117 membrane).
Marco Amores +8 more
wiley +1 more source
MISMATCH: A basis for semi-automatic functional mixed-signal test-pattern generation [PDF]
, 1996 This paper describes a tool which assists the designer in the rapid generation of functional tests for mixed-signal circuits down to the actual test-signals for the tester.
Engin, Nur +3 more
core +3 more sources