Results 91 to 100 of about 2,265 (207)
ChemElectroChemPorphyrin/sulphonated polyetheretherketone (sPEEK) composites are successfully obtained at different dye/polymer weight/weight percentage taking advantage of electrostatic interactions among the protonable nitrogen atoms of 5,10,15,20‐tetrakis(4‐pyridyl)‐
Viviana Bressi +8 more
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Van 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
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Studies on proton exchange membranes-based SPEEK Chitosan crosslinked via ultraviolet curing method / Nazli Ahmad Aini [PDF]
, 2018 The use of proton exchange membrane (PEM) is very significant component in PEMFC and DMFC. It functions to separate anode and cathode, prevents fuel gas crossover, and transports protons from anode to the cathode through it.
Ahmad Aini, Nazli
core
Properties improvement of SPEEK based proton exchange membranes by doping of ionic liquids and Y2O3
, 2012 The membranes of sulfonated poly(etheretherketone) with 65% sulfonation degree were prepared by doping of Y2O3 and ionic liquids, such as 1-ethyl-3-methylimidazole tetrafluoroborate (EB) or 1-butyl-3-methylimidazole methanesulfonate (BS), respectively ...
Li, Dan +9 more
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A study of the performance of SPEEK electrolyte of a novel PEMFC
Materials Research ExpressAbstract 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
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Polymer blends of SPEEK for DMFC application at intermediate temperatures
International Journal of Hydrogen Energy, 2014 This research has been funded in the frame of Support Programme for Research and Development of the Polytechnic University of Valencia and the Ministry of Science and Innovation through the projects: 24761 and SP-ENE-20120718, respectively.
Sergio Mollá, Vicente Compañ
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Results in EngineeringPolyether-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
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The morphology effect on the selectivity of SPEEK/ENR membranes for direct methanol fuel cell
, 2017 The objective of this study is to investigate the morphology effect of ENR-50 content on the conductivity and methanol permeability of SPEEK/ENR-50 membranes for DMFC application. Three different ratios (9.5:0.5, 8.5:1.5 and 7.5:2.5) of blended SPEEK/ENR-
M.H.D. Othman +15 more
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, 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 ...
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Advanced MembranesOil 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
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