Results 71 to 80 of about 592 (175)

Optimized Sulfonated Poly(Ether Ether Ketone) Membranes for In-House Produced Small-Sized Vanadium Redox Flow Battery Set-Up

open access: yesMembranes
The ionic exchange membranes represent a core component of redox flow batteries. Their features strongly affect the performance, durability, cost, and efficiency of these energy systems.
Antonino Rizzuti   +6 more
doaj   +1 more source

Composite Membranes of Sulfonated Poly(ether ether ketone) with Active Carbon: Composite Preparation and Investigation of their Properties for Potential Application for CO2 Electrochemical Reduction

open access: yesMedžiagotyra, 2020
In this study, synthesis of sulfonated poly(ether ether ketone) (SPEEK) was performed using sulfonation method with concentrated sulfuric acid. Polymer with three degrees of sulfonation was obtained: 0.87; 0.82 and 0.74.
Deniss FEDORENKO, Guntars VAIVARS
doaj   +1 more source

In Situ EQCM‐D Investigations of PEMFC Catalyst‐Ionomer Interactions

open access: yesChemElectroChem, Volume 13, Issue 3, 3 February 2026.
Electrochemical quartz crystal microbalance with dissipation monitoring measurements on Nafion‐coated platinum, carbon, and gold electrodes, as well as spray‐coated proton exchange membrane fuel cell electrodes, were performed in 0.5 M H2SO4 and 0.1 M HClO4. These reveal ionomer hydration and surface interactions during electrochemical cycling.
Nils Rieger   +7 more
wiley   +1 more source

Sculpting the Future of Bone: The Evolution of Absorbable Materials in Orthopedics

open access: yesAdvanced Materials, Volume 38, Issue 9, 12 February 2026.
This review summarizes the current status of polymeric, ceramic, and metallic absorbable materials in orthopedic applications, and highlights several innovative strategies designed to enhance mechanical performance, control degradation, and promote bioactivity. We also discuss the progress and translational potential of absorbable materials in treating
Zhao Wang   +13 more
wiley   +1 more source

Sulfonated polyether ether ketone-based composite membranes doped with a tungsten-based inorganic proton conductor for fuel cell applications [PDF]

open access: yes, 2006
Sulfonated polyether ether ketone (SPEEK)-based composite membranes doped with hydrated tungsten oxide were prepared and studied for proton exchange membrane applications.
Miyayama, M   +17 more
core   +1 more source

Reassessing Electrolyte Design for Non‐Aqueous Magnesium Batteries: Atomistic Structures and Performance Optimization

open access: yesAdvanced Materials, Volume 38, Issue 5, 22 January 2026.
This review systematically examines recent advances in non‐aqueous electrolytes for rechargeable magnesium batteries, focusing on chlorine‐containing and chlorine‐free systems. It highlights the interdependent relationship between electrolyte compositions, atomistic structures, and electrochemical performance.
Hao Xu   +10 more
wiley   +1 more source

Preparation and properties of proton exchange membrane reinforced by metal-organic framework/ionic liquid

open access: yesCailiao gongcheng
To improve the proton conductivity of the sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) membrane and reduce the loss rate of IL in the membrane, Cd@Co-MOF-74/Phosphate-4-phenylimidazole ionic liquid ([IM2][H2PO4])/SPEEK ternary composite ...
SUN Lijun   +3 more
doaj   +1 more source

Transformative 4D Printed SMPs into Soft Electronics and Adaptive Structures: Innovations and Practical Insights

open access: yesAdvanced Materials Technologies, Volume 10, Issue 19, October 7, 2025.
This review highlights recent advancements in 3DP techniques that incorporate emerging multifunctional SMP materials for applications in e‐electronics, soft actuators, biomedical devices, and more. Abstract Shape memory polymers (SMP) have recently gained significant attention as multifunctional materials for flexible and wearable electronics ...
Muhammad Yasir Khalid   +4 more
wiley   +1 more source

Study on Acid/Base Formation by Using Sulfonated Polyether Ether Ketone/Aminated Polysulfone Bipolar Membranes in Water Splitting Electrodialysis

open access: yes, 2016
The sulfonated polyether ether ketone (SPEEK) as a cation exchange polymer and aminated polysulfone (APSf) as an anion exchange membrane (AEM) were synthesized to prepare bipolar membranes (BPMs) through hot pressing. The water splitting electrodialysis (
Ji Won Rhim (1422268)   +1 more
core   +1 more source

Investigating Performance Properties of Three New Types of UF Membranes for Carwash Sector Applications

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 36, September 20, 2025.
PVC and its derivatives were used to prepare new types of UF membranes. Membranes had a high degree of removal efficiency of pollutants from carwash wastewater. The morphological SEM cross‐sectional of the membranes reveals to be porous ultrafiltration membranes.
Eman S. A. Al‐Sammarraie   +10 more
wiley   +1 more source

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