Results 41 to 50 of about 1,042 (180)

Building Sulfone Bridges: Multi‐Technique Analysis of Thermally Induced Cross‐Linking in Highly Sulfonated Poly(Phenylsulfone)

Journal of Polymer Science, Volume 64, Issue 18, Page 3903-3915, 15 September 2026.
Highly sulfonated poly(phenylsulfone) undergoes controlled thermal cross‐linking through sulfone bridge formation, exploiting the dual role of sulfonic acid groups as both proton‐conducting functionalities and reactive precursors. The resulting fluorine‐free membranes exhibit enhanced hydrolytic, thermal, and mechanical stability while maintaining ...
A. Fahs, J.‐F. Chailan, E. Sgreccia, M. Vagnarelli, L. Pasquini, P. Knauth, M. L. Di Vona   +6 more
wiley   +1 more source

The ability of SPEEK to promote the proliferation and osteogenic differentiation of BMSCs on PEEK surfaces

Heliyon
To 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, Jun-xiong Ma, Liang Zheng, Hong Wang, Hai-long Yu, Yu Chen   +5 more
doaj   +1 more source

Development of Cost-Effective sPEEK/Al2O3 Composite Membranes with Enhanced Proton Conductivity and Durability for PEMFCs [PDF]

E3S Web of Conferences
Polymer electrolyte membrane (PEM)-based fuel cells are emerging fields with high efficiency, low pollutant emissions, and low material consumption. However, conventional membranes have poor thermal resistance and are expensive.
Hakim Muhammad Fahmi, Hidayati Nur, Hasannah Cintiya Septa, Widianto Eri, Fauji Najmudin   +4 more
doaj   +1 more source

Gel Electrolytes for Flexible Zinc‐Air Batteries: Design, Challenges, and Perspectives

Advanced Science, Volume 13, Issue 49, 3 September 2026.
This review summarizes design strategies for gel electrolytes in flexible zinc‐air batteries, focusing on dendrite suppression, interfacial stability, and ultrathin architectures to enhance cycle life and energy density. ABSTRACT Flexible zinc‐air batteries (FZABs) have emerged as promising candidates for next‐generation flexible electronics and large ...
Yapeng Cao, Tengteng Gu, Yuqiong Wen, Xingxing Gao, Jian Wang, Jun Liu   +5 more
wiley   +1 more source

Electrochemical Properties of Poly(aminobenzene sulfonic)phosphazene Derivative Grafted SPEEK Proton Exchange Membrane

International Journal of Electrochemical Science, 2015
A type of poly(aminobenzene sulfonic)phosphazene derivative grafted SPEEK was synthesized which were confirmed by FT-IR and NMR analysis. And a series of grafted SPEEK proton exchange membranes with 65% sulfonation degree were prepared.
Zhengping Zhao, Zeping Zhou, J.I. Jianbing, Fang Xie   +3 more
doaj   +1 more source

Electrochemical Detection of Dopamine at Fe₃O₄/SPEEK Modified Electrode

Molecules, 2021
Reported here is the design of an electrochemical sensor for dopamine (DA) based on a screen print carbon electrode modified with a sulphonated polyether ether ketone-iron (III) oxide composite (SPCE-Fe3O4/SPEEK). L.
Mogomotsi N. Ranku, Gloria E. Uwaya, Omolola E. Fayemi   +2 more
doaj   +1 more source

Valorization of Textile Waste Into Bioenergy and Carbon‐Based Functional Materials

cScience, Volume 2, Issue 3, September 2026.
ABSTRACT The global textile industry’s rapid growth has accumulated vast, heterogeneous textile waste, posing environmental challenges while offering abundant, underutilized, carbon‐rich resources. This review comprehensively assesses recent advances in textile‐waste valorization for sustainable bioenergy production and synthesis of carbon‐based ...
Selim Reza, Md. Eusuf Hossan Imon, Md. Tanvir Hossain, Mst. Hurazannat Monira, Md. Abdus Shahid   +4 more
wiley   +1 more source

Enhanced proton conductivity of sulfonated poly(ether ether ketone) incorporating oxidized polyvinyl alcohol for high-performance proton exchange membranes

Materials for Renewable and Sustainable Energy
Alternative proton exchange membranes (PEMs) with high proton conductivity must be fabricated at reasonable costs to qualify as commercially used proton-exchange membrane fuel cells (PEMFCs).
Mohamed A. Ben Ali, Mohamed A. Ben Moussa, Souhib Umer Ilyas, Rizwan Nasir, Dorra Ghorbel, Sherif M. A. S. Keshk   +5 more
doaj   +1 more source

Nanostructured Sulfonated Polystyrene/Modified Chitosan Composite Membranes for Direct Methanol Fuel Cells

Macromolecular Materials and Engineering, Volume 311, Issue 9, September 2026.
A series of SPS‐based proton exchange membranes is presented in which chitosan and PWCS nanostructures tailor free volume, enhance proton‐conducting pathways, and suppress methanol transport. The optimized SPS‐PWCS membrane delivers high proton conductivity, moderated methanol permeability, and the highest selectivity, revealing an effective structural
Mahdi Tohidian, Mehdi Zolfi Zinab, Negar Hanaei   +2 more
wiley   +1 more source

Fabrication and development of SPEEK/PVdF-HFP/SiO2 proton exchange membrane for microbial fuel cell application

Chemical Engineering Journal Advances, 2023
This study presents the potential of sulfonated poly (ether-ether-ketone)/ poly (vinylidene fluorideco-hexafluoro propylene)/SiO2 (SPEEK/PVdF-HFP/SiO2) composite proton exchange membrane for the use of microbial fuel cell.
Jagdeep Kumar Nayak, Uday Shankar, Kundan Samal   +2 more
doaj   +1 more source