Results 121 to 130 of about 458 (155)

Performances of Sulfonated Polyether Ether Ketone Composite Membranes for Fuel Cell Applications

International Journal of Nanoscience, 2015
A variety of modification approaches such as cross-linking and nano blending have been explored to prepare efficient membranes based on Sulfonated polyether ether ketone (SPEEK). The addition filler is also one of the most widely used approaches to modify the SPEEK.
Jun Ma, Dongyun Su, Hongjun Ni, Mingyu Huang, Xingxing Wang   +4 more
openaire   +1 more source

Flexible humidity sensors for wireless monitoring based on electrospun sulfonated polyether ether ketone (SPEEK) nanofibres

Sensors and Actuators B: Chemical, 2020
Abstract The development of flexible and high-performance humidity sensors for continuous wireless monitoring is receiving increasing attention. In this work, electrospun sulfonated polyether ether ketone (SPEEK) nanofibres with different sulfonation degrees were prepared and directly deposited onto flexible substrates for humidity sensor ...
Robert Abbel, Jonghyun Choi, Kate Parker   +2 more
exaly   +2 more sources

Effect of sulfonation time on physicochemical, osteogenic, antibacterial properties and biocompatibility of carbon fiber reinforced polyether ether ketone

Journal of the Mechanical Behavior of Biomedical Materials, 2023
The carbon fiber reinforced polyetheretherketone (CFR-PEEK) has been increasingly used in orthopedics dentistry due to its excellent biocompatibility and mechanical properties. However, the biological inertness and poor antibacterial activity limit its clinical applications. This paper focused on the performances of CFR-PEEK with porous morphology that
Jingjing Su, Qingshi Wu, Xiaojie Xing, Dexiong Li, Yanjing Ou, Kaixun He, Hanyu Lin, Yubei Qiu, Xiaohui Rausch-Fan, Jiang Chen   +9 more
openaire   +2 more sources

Scaleup suitability of sulfonated polyether ether ketone membrane‐based microbial fuel cell

Environmental Progress & Sustainable Energy, 2015
A sustainable clean energy production from oxidation of biodegradable materials was carried out in a microbial fuel cell (MFC) stack consisting of four MFC units. The stack was fabricated and tested for its scalability using a high engineering, low oxygen mass transfer membrane; namely, sulfonated poly ether ether ketone. Sodium acetate was used as the
Mahendiravarman Elangovan, Sangeetha Dharmalingam   +1 more
openaire   +1 more source

Development of bioactive sodium alginate/sulfonated polyether ether ketone/hydroxyapatite nanocomposites: Synthesis and in-vitro studies

Carbohydrate Polymers, 2021
Developing bioactive composites to fill bone cavities caused by disease, injury or surgery still remains a challenge. The aim of this research was to develop a new nanostructured sodium alginate/sulfonated polyether ether ketone/nano-hydroxyapatite (Alg/SPEEK/HA) biocomposite via a simple chemical precipitation strategy. Structural analysis was carried
openaire   +2 more sources

Composite membrane of sulfonated polyether ether ketone (sPEEK) – Chitosan for direct methanol fuel cell

AIP Conference Proceedings, 2020
The challenge of commercialization of fuel cells in Indonesia is mainly the caused by high manufacturing costs, particulary the cost of electrolyte membrane which is one of the important components of fuel cells. The use of inexpensive and abundant local materials such as sulfonated polyether ether ketone polymers and chitosan, to replace the currently
Tri Harmoko, Nur Hidayati, Herry Purnama, Muhammad Mujiburohman   +3 more
openaire   +1 more source

Proton conducting composite membranes from sulfonated polyether ether ketone and SiO2

Journal Wuhan University of Technology, Materials Science Edition, 2009
Proton conducting composite membranes from sulfonated polyether ether ketone and SiO2 for direct methanol fuel cell (DMFC) application were prepared with sulfonated polyether ether ketone(SPEEK) and tetracethoxy silane(TEOS) by sol-gel method. The covalent crosslinking structure was formed between —SO3H of SPEEK via SiO2.
Gaowen Zhang, Zhentao Zhou, Chunqing Li, Heng Chu   +3 more
exaly   +2 more sources

A sulfonated and nitrated polyether ether ketone/polyvinyl chloride modified atmosphere packaging delays the deterioration of grapes

Journal of the Science of Food and Agriculture
AbstractBACKGROUNDPolyether ether ketone (PEEK) was modified by a sulfuric and nitric acid mixed system to improve the solubility of the material and the gas selective permeability of the film. SN1 and SN5, synthesized from mixed acid systems (with ratios of nitric acid and sulfuric acid of 1:1 and 1:5, respectively) were chosen because they had ...
Yuting Huang
exaly   +3 more sources

Improving Blood Compatibility of Polyethersulfone Hollow Fiber Membranes via Blending with Sulfonated Polyether Ether Ketone

Macromolecular Materials and Engineering, 2016
Appropriate membrane for blood contacting applications requires hemocompatibility and high permeation flux; it should inhibit proteins or platelets adsorption and still possess high permeability. Aiming to improve the polyethersulfone (PES) hollow fiber membrane hemocompatibility, sulfonated polyether ether ketone (SPEEK) is self‐synthesized in the ...
Azadeh Ghaee, Esmaeil Salimi, Ahmad Fauzi Ismail   +2 more
exaly   +2 more sources

Proton Conducting Electrolyte Membranes based on Tungsten Oxide and Sulfonated Polyether Ether Ketone Hybrid Composites

MRS Proceedings, 2005
ABSTRACTComposite membranes, prepared by mixing sulfonated polyether ether ketone (SPEEK) and WO3·2H2O in dimethylacetamide, were characterized by Thermogravimetry, Electrochemical Impedance Spectroscopy and Water Uptake measurements to evaluate their possible performance as proton exchange membranes (PEM).
MECHERI, BARBARA, D'EPIFANIO, ALESSANDRA, DI VONA, MARIA LUISA, TRAVERSA, ENRICO, LICOCCIA, SILVIA, Miyayama, M.   +5 more
openaire   +3 more sources