Results 11 to 20 of about 4,874 (220)

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, Fatemeh Gashoul, Soosan Rowshanzamir   +2 more
doaj   +1 more source

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, Amani Al-Othman, Muhammad Tawalbeh, Muhammad Qasim   +3 more
doaj   +1 more source

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., Koziara, B.T., Nijmeijer, D.C.   +2 more
core   +8 more sources

Ion-Regulating SPEEK-BNNS Hybrid Interfaces Enabling Low-Barrier Zn-Ion Transport and Dendrite-Free Zinc Anodes. [PDF]

Small
A scalable organic–inorganic hybrid protective layer composed of sulfonated poly(ether ether ketone) and boron nitride nanosheets is introduced to stabilize Zn‐metal anodes. The hybrid architecture regulates Zn2+ transport, suppresses dendrite growth, and mitigates parasitic reactions, enabling uniform Zn deposition and long‐term stable cycling in ...
Kim M, Kim H, Woo S, Choi I, Kim S, Kim HS, Lee D.   +6 more
europepmc   +2 more sources

Spectroscopy and Cyclic Voltammetry Properties of SPEEK/CuO Nanocomposite at Screen-Printed Gold Electrodes

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, Onkarabile G. Pooe, Funmilola A. Adesanya, Ikechukwu P. Ejidike   +3 more
doaj   +1 more source

pH and pCl Operational Parameters in Some Metallic Ions Separation with Composite Chitosan/Sulfonated Polyether Ether Ketone/Polypropylene Hollow Fibers Membranes

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, Abbas Abdul Kadhim Klaif Rikabi, Ovidiu Oprea, Alexandra Raluca Grosu, Szidonia-Katalin Tanczos, Maria Claudia Simonescu, Dumitru Pașcu, Vlad-Alexandru Grosu, Florina Dumitru, Gheorghe Nechifor   +9 more
doaj   +1 more source

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, Zhidan Zhang, Shuangling Zhong, Reza Daneshfar   +3 more
doaj   +1 more source

Antibacterial activity, bio-compatibility and osteogenic differentiation of graphene oxide coating on 3D-network poly-ether-ether-ketone for orthopaedic implants

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

Effect of Chemical Structure on the Performance of Sulfonated Poly(aryl ether sulfone) Composite Nanofiltration Membranes

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, Shanshan Guan, Chengde Liu, Zhenlin Wang, Danhui Wang, Xigao Jian   +5 more
doaj   +1 more source

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
FAUVARQUE, J.F, MABROUK, Walid, MATOUSSI, F., OGIER, Lionel, SOLLOGOUB, Cyrille, VIDAL, Serge   +5 more
core   +6 more sources