Results 11 to 20 of about 2,265 (207)

Enhanced Conductivity of Composite Membranes Based on Sulfonated Poly(Ether Ether Ketone) (SPEEK) with Zeolitic Imidazolate Frameworks (ZIFs) [PDF]

Nanomaterials, 2018
The zeolitic imidazolate frameworks (ZIFs) ZIF-8, ZIF-67, and a Zn/Co bimetallic mixture (ZMix) were synthesized and used as fillers in the preparation of composite sulfonated poly(ether ether ketone) (SPEEK) membranes.
Arturo Barjola, Jorge Escorihuela, Andreu Andrio, Enrique Giménez, Vicente Compañ   +4 more
doaj   +2 more sources

Simultaneously Promoting Proton Conductivity and Mechanical Stability of SPEEK Membrane by Incorporating Porous g–C₃N₄ [PDF]

Membranes
Proton exchange membranes are widely used in environmentally friendly applications such as fuel cells and electrochemical hydrogen compression. In these applications, an ideal proton exchange membrane should have both excellent proton conductivity and ...
Xiaoyao Wang, Benbing Shi
doaj   +2 more sources

Theoretical studies on structural and electrical properties of PES/SPEEK blend nanofiltration membrane

Desalination, 2009
Polyethersulfone (PES) nanofiltration membranes were prepared using a simple dryjet wet spinning technique with different contents of sulfonated poly(ether ether ketone) (SPEEK) ranging from 0 to 4 wt %.
W. J. Lau, Ismail, Ahmad Fauzi, Lau, W. J., A. F. Ismail   +3 more
core   +2 more sources

SPEEK Matrimid blend membranes for CO2 separation

Journal of Membrane Science, 2011
SPEEK/Matrimid blend membranes for CO2 ...
AsimLaeeqKhan, IvoF.J.Vankelecom, 李先锋   +2 more
core   +2 more sources

High durable SPEEK/TiO2 nanopaper composite membrane for vanadium redox flow battery

Journal of Saudi Chemical Society
Sulfonated poly (ether ether ketone) (SPEEK) ion exchange membranes for VRFB are promising alternatives to Nafion, but require improved mechanical and chemical stability for long-term operation. Here, we have fabricated composite membranes using SPEEK as
Song Il Han, Song Hyok Jon, Un Hyang Kim, Gang Hyok Kim, Sang Mo Jon   +4 more
doaj   +2 more sources

Theoretical studies on the morphological and electrical properties of blended PES/SPEEK nanofiltration membranes using different sulfonation degree of SPEEK

Journal of Membrane Science, 2009
Sulfonated poly(ether ether ketone)s (SPEEKs) with different sulfonation degrees (DS) were synthesized and characterized using FTIR and NMR for the preparation of blend nanofiltration (NF) membranes.
Ismail, Ahmad Fauzi, Lau, W. J.
core   +3 more sources

Thiourea-based hybrid sPEEK membranes using a Sol-Gel approach: Elaboration of stabilized hybrid sPEEK membranes

Reactive and Functional Polymers
International audienceChemically stabilized hybrid membranes derived from sulfonated Poly (Ether Ether Ketone) membrane (sPEEK) have been developed for fuel cell applications.
Santini, Catherine, C, Dillet, J., Espuche, E., Gain, O., Gonon, Laurent, Gouanvé, Fabrice, Daoudi, Meriem, Perrin, J.C., Tougne, Claire, Ferri, Evelise, Mareau, V.H., El Kaddouri, A., Mendil-Jakani, H., Dufaud, V., Lottin, O.   +14 more
core   +2 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

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, Meng W, Huynh TTK, Wang Z, Ye J, Yang Y, Hoang MT, Liu Z, Cai Z, Guo M, Xu J, Wang H.   +11 more
europepmc   +2 more sources

Broadband electric spectroscopy of proton conducting SPEEK membranes

Journal of Membrane Science, 2012
Many papers have focused on the thermal properties, conductivity and fuel cell performance of sulfonated poly(ether ether ketone) (SPEEK) membranes, but the electrical properties have not been extensively studied. In this work, the electric properties of
PIGA, MATTEO, DI NOTO, VITO, Giuseppe Pace, Vito Di Noto, Matteo Piga, Guinevere A. Giffin, GIFFIN, GUINEVERE   +6 more
core   +3 more sources