Results 11 to 20 of about 4,819 (221)
Sulfonated Poly(ether ether ketone) and Organically Modified Montmorillonite Nanocomposite Membranes for Direct Methanol Fuel Cell [PDF]
علوم و تکنولوژی پلیمر, 2022 Hypothesis: The modification of aromatic polymers, such as poly(ether ether ketone) (PEEK), by sulfonation modification, can result in fabricating polyelectrolyte membranes (PEMs) as the alternatives to Nafion for direct methanol fuel cell (DMFC ...
Mahdi Tohidian +5 more
doaj +1 more source
Studies on the SPEEK membrane with low degree of sulfonation as a stable proton exchange membrane for fuel cell applications [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2017 Sulfonated poly (ether ether ketone) (SPEEK) with a low degree of sulfonation (DS = 40%) was prepared for proton exchange membrane fuel cells (PEMFC).
Mohammad Javad Parnian +2 more
doaj +1 more source
Ultra-Thin Hybrid Ion Exchange Interlayer for High Performance Aqueous Zn Metal Batteries. [PDF]
Adv Sci (Weinh)An ultra‐thin SPEEK/FCD ion‐exchange interlayer modulates the Zn2+ solvation environment (–SO3−), provides ion‐exchange pathways that homoginized the Zn2+ flux, and via F‐rich chemistry forms in situ ZnF2 that suppresses parasitics and stabilizes the interface; its integrity relieves interfacial stress.
Yang T +11 more
europepmc +2 more sources
Optical anisotropy, molecular orientations, and internal stresses in thin sulfonated poly(ether ether ketone) films [PDF]
, 2015 The thickness, the refractive index, and the optical anisotropy of thin sulfonated poly(ether ether ketone) films, prepared by spin-coating or solvent deposition, have been investigated with spectroscopic ellipsometry.
Benes, N.E. +2 more
core +8 more sources
A Critical Review on the Use of Ionic Liquids in Proton Exchange Membrane Fuel Cells
Membranes, 2022 This work provides a comprehensive review on the incorporation of ionic liquid (ILs) into polymer blends and their utilization as proton exchanges membranes (PEM).
Adnan Alashkar +3 more
doaj +1 more source
Nanomaterials, 2022 A successful electrochemical study of copper oxide nanoparticles (CuO NPs), sulfonated poly (ether ether ketone) polymer (SPEEK), and sulfonated polyether ether ketone-copper oxide (SPEEK/CuO) nanocomposite on bare gold electrodes was conducted.
Omolola E. Fayemi +3 more
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Membranes, 2022 The development of new composite membranes is required to separate chemical species from aggressive environments without using corrective reagents. One such case is represented by the high hydrochloric acid mixture (very low pH and pCl) that contains ...
Anca Maria Cimbru +9 more
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Preparation and Application of Aromatic Polymer Proton Exchange Membrane with Low-Sulfonation Degree
International Journal of Chemical Engineering, 2020 4,4′-Dichlorodiphenylsulfone-3,3′-disulfonic acid (disodium) salt and 4,4′-difluorodiphenylsulfone were used as sulfonated monomer. 4,4′-Fluorophenyl sulfones were used as the nonsulfonated monomer.
Yushan Gao +3 more
doaj +1 more source
Journal of Materials Science: Materials in Medicine, 2021 Poly-ether-ether-ketone (PEEK) has attracted increasing attention as a promising orthopaedic implant material owing to its excellent mechanical properties and biocompatibility. However, its antibacterial properties must be improved as an implant material.
Cui Guo, Ran Lu, Xin Wang, Su Chen
doaj +1 more source
Membranes, 2019 This paper discusses the effect of the chemical structure of sulfonated poly(aryl ether sulfone) on the performance of composite nanofiltration membranes.
Shouhai Zhang +5 more
doaj +1 more source