Results 51 to 60 of about 963 (161)

Proton Değişim Membranı olarak SPEEK-PVA ve SPEEK-PVA-Borik Asit Karışım Membranlar üzerine TEOS Katkısının Etkisi

open access: yesVan Yüzüncü Yıl Üniversitesi Mühendislik Fakültesi Dergisi, 2023
Bu çalışmada, proton değişim membranı olarak farklı kütlesel yüzdelerde (%1, %3 ve %5) TEOS katkılı SPEEK-PVA ve SPEEK-PVA-borik asit karışım membranları çözelti döküm yöntemiyle sentezlenmiştir.
Alpay Şahin   +2 more
doaj  

Optimization of sPEEK/S-TiO2 nanocomposite membranes using response surface methodology for low-temperature fuel cell

open access: yesResults in Engineering
Polyether-ether-ketone (PEEK), a speciality thermoplastic polymer is treated with concentrated sulfuric acid to introduce sulfonated repeating units in its backbone.
Mawlood Maajal Ali   +7 more
doaj   +1 more source

A study of the performance of SPEEK electrolyte of a novel PEMFC

open access: yesMaterials Research Express
Abstract Analysis of performance of fuel cell is carried out by considering non-fluorinated electrolyte and variety of potential electrodes. The study spans low temperature regions and carried out MD investigation of transport of ions in a novel PEM fuel cell (PEMFC), which is composed of electrodes and SPEEK as a non-fluorinated ...
S S Awulachew, K N Nigussa
openaire   +2 more sources

Electrospun amphiphilic sulfonated poly(ether-ether-ketone) (SPEEK) membranes for thin-layer crude oil spill cleanup

open access: yesAdvanced Membranes
Oil spills and the release of oily wastewater have caused serious damage to the environment and human health. Effective removal of oil spills and separation of oil/water mixtures have become a crucial step before they enter the environment and reveal ...
Fuat Topuz   +2 more
doaj   +1 more source

Development of sPEEK/ TiSi04 and sPEEK/ sulfonatedTiSi04 nanocomposite membranes for applications in Direct Methanol Fuel Cells

open access: yes, 2020
As of now, many researchers have focused their attention on the less expensive PEEK, a polymer that is emerging as a promising alternative with low cost. This current work aims at developing and fabricating sPEEK/TiSiO4 (x1-x3) and sPEEK/ sulfonated-TiSiO4 (y1-y3) nanocomposite membranes with high water uptake, proton conductivity and good DMFC ...
openaire   +1 more source

Functionalized microporous sulfonated polyetheretherketone: Osteogenesis and anti-osteoclastogenesis effects via ROS and NLRP3-mediated pyroptosis in macrophages

open access: yesMaterials & Design
The treatment of osteoporotic implant failures tends to be challenging due to an imbalance in bone homeostasis. Recently, the accumulation of intracellular reactive oxygen species (ROS) and activation of the inflammasome containing nucleotide-binding ...
Chao Yang   +5 more
doaj   +1 more source

SPEEK/Polyimide Blends for Proton Conductive

open access: yes, 2009
A series of membranes, based on sulphonated poly(ether ether ketone) (SPEEK)/polyimide (PI) blends, was prepared at different casting conditions. They were characterised by SEM, FTIR, DMTA, DSC, TGA, water/methanol pervaporation and impedance spectroscopy.
Maab, H.   +4 more
openaire   +1 more source

STUDIES ON SPEEK/PES-C AND SPEEK/SPES-C BLEND PROTON-EXCHANGE MEMBRANES

open access: yesActa Polymerica Sinica, 2009
Qijun GAO   +4 more
openaire   +1 more source

SPEEK membrānu hidratācijas – dehidratācijas pētījumi

open access: yes, 2015
SPEEK membrānu hidratācijas-dehidratācijas pētījumi. Sala, E., zinātniskais vadītājs Dr. ķīm., pētnieks Veldre, K. Bakalaura darbs, 45 lappuses, 30 attēli, 7 tabulas, 56 literatūras avoti. Latviešu valodā. Darbā ir veikti dažādu SPEEK membrānu ūdens satura pētījumi, izmantojot termogravimetriju un diferenciāli termisko analīzi.
openaire   +1 more source

Hypochlorite Production by Using SPEEK/APSf and SPEEK/APEI Bipolar Membranes Modified by the Direct Fluorination

open access: yesMembrane Journal, 2015
Ka young Kim   +2 more
openaire   +1 more source

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