Results 41 to 50 of about 438 (137)

Preparation and Characterisation of Composite Sulfonated Polyether Ether Ketone for Direct Methanol Fuel Cells

Journal of Physics: Conference Series, 2019
Abstract Direct Methanol Fuel Cell (DMFC), uses a proton exchange polymer electrolyte which one of the key components developed to realize the commercialization of fuel cells in transportation and portable equipment. Poly Ether Ether Ketone (PEEK) is a thermoplastic material that has a combination of physico-chemical and good mechanical ...
H Purnama, M Mujiburohman, M F Hakim, N Hidayati   +3 more
openaire   +1 more source

Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles

Materials & Design, 2021
Electrospinning technique was employed to fabricate composite nanofibers/nanoparticles of sulfonated polyether ether ketone, polyvinylpyrrolidone, and ruthenium oxide (sPEEK/PVP/RuO2). The samples were synthesized with different concentrations of hydrous
Mariem Chamakh, Ahmad I. Ayesh
doaj   +1 more source

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

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   +1 more source

A Comparative Study of Nafion 212 and Sulfonated Poly(Ether Ether Ketone) Membranes with Different Degrees of Sulfonation on the Performance of Iron-Chromium Redox Flow Battery

Membranes, 2023
For an iron-chromium redox flow battery (ICRFB), sulfonated poly(ether ether ketone) (SPEEK) membranes with five various degrees of sulfonation (DSs) are studied.
Enrui Bai, Haotian Zhu, Chuanyu Sun, Guanchen Liu, Xiaoyin Xie, Chongyang Xu, Sheng Wu   +6 more
doaj   +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

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

Membranes
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, Elena Dilonardo, Gennaro Cozzolino, Fabio Matera, Alessandra Carbone, Biagia Musio, Piero Mastrorilli   +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

Medžiagotyra, 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

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

Cailiao 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, LYU Xueyan, DING Luyang, QU Shuguo   +3 more
doaj   +1 more source

Osmotic energy harvesting from produced water and boiler blowdown water by sulfonated Poly(ether ether ketone)-based mixed matrix membranes

Advanced Membranes
The salinity gradient between produced water and boiler blowdown water – both significant waste streams in the petroleum industry – represents an emerging, clean, and sustainable energy source. This energy can be directly converted to electricity through
Li Cao, I-Chun Chen, Cailing Chen, Xiaowei Liu, Kai Qu, Zhen Li, Khalid Hazazi, Zhiping Lai   +7 more
doaj   +1 more source

Experimental Investigation on CO2 and CH4 Gas Separation Using SPEEK/PVA/ZnO Polymer Nanocomposite Membranes for Greenhouse Gas Emissions Reduction and Environmental Improvement [PDF]

Iranian Journal of Chemistry & Chemical Engineering
Reducing greenhouse gas emissions is a critical environmental challenge, with fossil fuel consumption and deforestation as major contributors to rising CO2 levels.
Ahmad Bahreini, Arezoo Ghadi, Mojtaba Masoumi   +2 more
doaj   +1 more source