Results 41 to 50 of about 161,382 (189)

A sulfonated modification of PEEK for ultralow friction

open access: yesFriction, 2022
Polyether ether ketone (PEEK) is a widely used material for friction pairs due to its excellent mechanical strength, good wear resistance, and chemical inertness.
Shihua Yuan, Chenhui Zhang
doaj   +1 more source

Preliminary Study of the Use of Sulphonated Polyether Ether Ketone (SPEEK) as Proton Exchange Membrane for Microbial Fuel Cell (MFC)

open access: yesInternational Journal of Renewable Energy Development, 2018
Sulfonated polyether ether ketone (SPEEK) was utilized as a proton exchange membrane (PEM) in Microbial Fuel Cell (MFC). The SPEEK performance in producing electricity had been observed in MFC using wastewater and glucose as substrates.
Dani Permana   +2 more
doaj   +1 more source

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

open access: yes, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
MABROUK, Walid   +7 more
core   +1 more source

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

open access: yesE3S 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   +4 more
doaj   +1 more source

Mechanical behavior between titanium alloy and carbon fiber reinforced polyether-ether-ketone

open access: yes, 2023
Comparison of the mechanical behavior between titanium and carbon fiber reinforced polyether-ether-ketone when a critical load of 550 N is applied and when the critical load is discharged.
Miguel Martinez-Mondragon (14817901)
core   +1 more source

In situ analysis of hydration and ionic conductivity of sulfonated poly(ether ether ketone) thin films using an interdigitated electrode array and a nanobalance [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2022
Proton-conducting polymers, such as sulfonated poly(ether ether ketone) (SPEEK), are of great industrial interest. Such proton exchange membranes show high tendencies for water and water vapor uptake. The incorporation of water not only leads to mass and
H. Wulfmeier   +4 more
doaj   +1 more source

Proton conducting electrospun sulfonated polyether ether ketone graphene oxide composite membranes

open access: yesRSC Advances, 2017
A series of novel composite membranes, based on sulfonated poly(ether ketone) (SPEEK) with a graphene oxide (GO) layer, were prepared.
Jose Luis Reyes-Rodriguez   +5 more
openaire   +4 more sources

Study on the AFM Force Curve Common Errors and Their Effects on the Calculated Nanomechanical Properties of Materials

open access: yesJournal of Engineering, 2016
The atomic force microscope (AFM) force curve has been widely used for determining the mechanical properties of materials due to its high resolution, whereby very low (piconewton) forces and distances as small as nanometers can be measured.
D. Almasi   +4 more
doaj   +1 more source

Composite sPEEK with Nanoparticles for Fuel Cell's Applications: Review [PDF]

open access: yes, 2012
The membranes in fuel cells must both conduct protons and serve as a barrier for fuel. This review discusses modifications nanoparticles of sPEEK (sulfonated polyether-ether ketone), sPEEK have advantages properties as fuel cell’s membranes such as ...
Arief , Rahman Hakim   +3 more
core   +1 more source

Influence of Silica/Sulfonated Polyether-Ether Ketone as Polymer Electrolyte Membrane for Hydrogen Fueled Proton Exchange Membrane Fuel Cells

open access: yesInternational Journal of Science and Engineering, 2011
The operation of non-humidified condition of proton exchange membrane fuel cell (PEMFC) using composite sPEEK-silica membrane is reported. Sulfonated membrane of PEEK is known as hydrocarbon polyelectrolyte membrane for PEMFC and direct methanol fuel ...
Sri Handayani   +1 more
doaj   +1 more source

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