Modelling IR Spectra of Sulfonated Polyether Ether Ketone (SPEEK) Membranes for Fuel Cells [PDF]
Key Engineering Materials, 2020 SPEEK (sulfonated polyether ether ketone) membranes have been prepared and characterized. The SPEEK membrane geometry and theoretical vibration spectra calculated using density functional theory (DFT) as depending from membrane chain length and polymer cross-linking.
Vaivars, Guntars +2 more
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Sulfonation Treatment of Polyether-Ether-Ketone for Dental Implant Uses
Applied SciencesThere has been a recent uptake in the use of polyether-ether-ketone (PEEK), which is an organic thermoplastic polymer, in the manufacturing of various medical devices, implants, and equipment.
Hussein Hamid, Ihab Safi, Falah Hussein
doaj +2 more sources
Utilization of Water-Insoluble Carbon Nitride-Phosphotungstic Acid Hybrids in Composite Proton Exchange Membranes [PDF]
MembranesPhosphotungstic acid (HPW) can retain water in proton exchange membranes to increase proton conductivity; however, its water-soluble nature limits further application.
Xiancan Yuan +7 more
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'Small' Technology, Big Power: Micropore Engineering for High-Performance Flow Battery Membranes. [PDF]
SmallThis review systematically analyzes recent advances in redox flow batteries (RFBs) membrane separators, focusing on the shift from traditional ion‐exchange membranes to emerging functional porous membranes: Covalent Organic Frameworks (COFs), Metal‐Organic Frameworks (MOFs), and Polymers of Intrinsic Microporosity (PIMs).
Wei C +7 more
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The ability of SPEEK to promote the proliferation and osteogenic differentiation of BMSCs on PEEK surfaces [PDF]
HeliyonTo investigate the ability of sulfonated polyetheretherketone (SPEEK) to promote the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) and compare the effects of different degrees of sulfonation (DS), SPEEK was ...
Shuang Wang +5 more
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Composite Sulfonated Polyether-Ether Ketone Membranes with SBA-15 for Electrochemical Energy Systems. [PDF]
Materials (Basel), 2020 The aim of this work is the evaluation of a Sulfonated Poly Ether-Ether Ketone (S-PEEK) polymer modified by the addition of pure Santa Barbara Amorphous-15 (SBA-15, mesoporous silica) and SBA-15 previously impregnated with phosphotungstic acid (PWA) fillers (PWA/SBA-15) in order to prepare composite membranes as an alternative to conventional Nafion ...
Rico-Zavala A +9 more
europepmc +5 more sources
Ultrasonic-Assisted Rapid Preparation of Sulfonated Polyether Ether Ketone (PEEK) and Its Testing in Adsorption of Cationic Species from Aqueous Solutions. [PDF]
Materials (Basel), 2022 Baltag L +4 more
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Journal of Power Sources, 2014 In an attempt to reduce the Li+ concentration polarization and electrolyte depletion from the electrode porous space, sulfonated polyether ether ketone with pendant lithiated fluorinated sulfonic groups (SPEEK-FSA-Li) is prepared and attempted as ionic conductivity binder.
Zengbin Wei +5 more
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Study of High Performance Sulfonated Polyether Ether Ketone Composite Electrolyte Membranes. [PDF]
Polymers (Basel), 2019 In this study, high performance composite electrolyte membranes were prepared from polyether ether ketone polymeric material. An initial sulfonation reaction improved the membrane hydrophilicity and its water absorbability and thus enhanced the ionic conductivity in electrochemical cells. Protonic conductivity was improved from 10−4 to 10−2 S cm−1 with
Wu G, Lin SJ, Hsu IC, Su JY, Chen DW.
europepmc +4 more sources
MRS Proceedings, 2005 ABSTRACTComposite membranes, prepared by mixing sulfonated polyether ether ketone (SPEEK) and WO3·2H2O in dimethylacetamide, were characterized by Thermogravimetry, Electrochemical Impedance Spectroscopy and Water Uptake measurements to evaluate their possible performance as proton exchange membranes (PEM).
MECHERI, BARBARA +5 more
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