Results 21 to 30 of about 6,144 (201)

Effect of dispersion state of Cloisite15A® on the performance of SPEEK/Cloisite15A nanocomposite membrane for DMFC application [PDF]

open access: yes, 2011
The introduction of 2,4,6-triaminopyrimidine (TAP) into sulfonated poly(ether ether ketone) (SPEEK)/Cloisite15A® nanocomposite membranes were investigated for the purpose of maintaining low methanol permeability and suppressing swelling in direct ...
Ismail, Ahmad Fauzi   +2 more
core   +1 more source

Preparation of an Amidated Graphene Oxide/Sulfonated Poly Ether Ether Ketone (AGO/SPEEK) Modified Atmosphere Packaging for the Storage of Cherry Tomatoes

open access: yesFoods, 2021
The shelf life of cherry tomatoes is short so that new and efficient preservation techniques or procedures are required to reduce postharvest losses. This study focused on the development of a sulfonated poly ether ether ketone (SPEEK) film incorporated ...
Yao Cheng   +3 more
doaj   +1 more source

Synthesis and process optimization of electrospun PEEK-sulfonated nanofibers by response surface methodology [PDF]

open access: yes, 2015
In this study electrospun nanofibers of partially sulfonated polyether ether ketone have been produced as a preliminary step for a possible development of composite proton exchange membranes for fuel cells.
Boaretti, Carlo   +3 more
core   +2 more sources

The effects of surface modifications of multiwalled carbon nanotubes on their dispersibility in different solvents and poly(ether ether ketone) [PDF]

open access: yes, 2014
The effects of surface modifications of multi-walled carbon nanotubes (MWCNTs) on their dispersibility in different solvents and poly (ether ether ketone) (PEEK) have been studied.
Cao, Zongshuang   +4 more
core   +1 more source

Direct spun aligned carbon nanotube web-reinforced proton exchange membranes for fuel cells [PDF]

open access: yes, 2014
A composite membrane prepared by electrospinning SPEEK and direct spinning of CNTs is more robust than SPEEK alone and outperforms SPEEK and Nafion 212 membranes.
Caruso, Rachel A.   +9 more
core   +1 more source

Review on Modification of Sulfonated Poly (-ether-ether-ketone) Membranes Used as Proton Exchange Membranes

open access: yesMedžiagotyra, 2015
The proton exchange membrane fuel cell (PEMFC) is a type of modern power, but the traditional proton exchange membranes (PEM) of PEMFC are limited by high methanol permeability and water uptake.
Xiaomin GAO, Yonghua LIU, Jinlong LI
doaj   +1 more source

Optical anisotropy, molecular orientations, and internal stresses in thin sulfonated poly(ether ether ketone) films [PDF]

open access: yes, 2015
The thickness, the refractive index, and the optical anisotropy of thin sulfonated poly(ether ether ketone) films, prepared by spin-coating or solvent deposition, have been investigated with spectroscopic ellipsometry.
Benes, N.E.   +2 more
core   +8 more sources

Exosome-functionalized polyetheretherketone-based implant with immunomodulatory property for enhancing osseointegration

open access: yesBioactive Materials, 2021
The host immune response effecting on biomaterials is critical to determine implant fates and bone regeneration property. Bone marrow stem cells (BMSCs) derived exosomes (Exos) contain multiple biosignal molecules and have been demonstrated to exhibit ...
Lei Fan   +11 more
doaj   +1 more source

Composite membranes anchoring phosphotungstic acid by β-cyclodextrins modified halloysite nanotubes

open access: yesPolymer Testing, 2021
Anchoring phosphotungstic acid (HPW) on insoluble inorganic fillers is a facile and effective approach to suppress its leakage in the proton exchange membrane.
Shaojian He   +5 more
doaj   +1 more source

Composite sPEEK Membranes for Vanadium Redox Batteries Application

open access: yesProcedia Engineering, 2012
Composite sPEEK membranes having different sulphonation degree were realised by using different percentages (0-20wt.%) of a functionalised silica (3-aminopropyl-functionalised silica) as a filler for vanadium redox batteries applications (VRBs). The prepared membranes were characterised in terms of Ion Exchange Capacity (IEC), vanadium up-take, proton ...
ASaccà   +4 more
openaire   +4 more sources

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