Results 51 to 60 of about 161,382 (189)
Graphene Reinforced Polyether Ether Ketone Nanocomposites for Bone Repair Applications [PDF]
, 2020 To improve the performance of polyether ether ketone matrix (PEEK) in hard tissue repair and replacement applications, we fabricated graphene (G) reinforced PEEK with graded G concentrations (0.1%-5%) through injection molding. The mechanical properties,
Miaomiao, He +5 more
core +1 more source
Current Density Performances in Poly Ether Ether Keton Membrane for Direct Methanol Fuel Cells [PDF]
, 2012 The objective of this study focuses on the characterization of poly ether ether ketone (PEEK) membranes for direct methanol fuel cells (DMFC) application. The PEEK membrane was modified with sulfonation in NMP solvent.
E. L. , Dewi +5 more
core +1 more source
Ordered Ionic‐Liquid Channels Enable Fast Anhydrous Proton Conduction at up to 240°C for Fuel Cells
Angewandte Chemie, Volume 138, Issue 31, 27 July 2026.Infiltration of ionic liquids into a composite scaffold comprised of graphene and boron nitride nanosheets functionalised with positively charged polyethyleneimine produces robust proton conducting membranes for the intermediate temperature electrochemical devices.
Mazin Al‐Alawi +8 more
wiley +2 more sources
Membranes, 2013 A low cost cation exchange membrane to be used in a specific bioelectrochemical system has been developed using poly(ether ether ketone) (PEEK). This material is presented as an alternative to current commercial ion exchange membranes that have been ...
Rebecca S. L. Yee +2 more
doaj +1 more source
Nanomaterials, 2022 The rich −SO3H groups enable sulfonated poly (ether ether ketone) (SPEEK) to possess excellent proton conductivities in proton exchange membrane (PEM), but cause excessive water absorption, resulting in the decline of dimensional stability.
Xiaoyu Meng +7 more
doaj +1 more source
Preparation and Properties of SeO2 and PWA Binary Compound Doped SPEEK Proton Exchange Membranes
International Journal of Electrochemical Science, 2018 Herein, we prepared proton exchange membranes by adding SeO2 and phospho-wolframic acid (PWA) into DS 85 wt% sulfonated polyether ether ketone (SPEEK). The result indicates that their proton conductivity is increasing without decrease of their methanol ...
Zhicai He +4 more
doaj +1 more source
Dynamic investigation of hydrocarbon proton exchange membrane Fuel Cell [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2018 Sulfonated polyether ether ketone (SPEEK) is categorized in a nonfluorinated aromatic hydrocarbon proton exchange membrane (PEM) group and considered as a suitable substitute for common per-fluorinated membranes, such as Nafion, due to wider operating ...
Milad Shakouri Kalfati +2 more
doaj +1 more source
Additive manufacturing of polyether ether ketone – PEEK parts with surface roughness modification by a laser beam [PDF]
, 2020 The physicochemical properties of polyether ether ketone (PEEK) allow to use this material for prosthetic restorations applied in implant prosthetics. So far, such attempts have been made in the technology of milling rough material solids of this polymer,
Tadeusz CHWALCZUK +9 more
core +1 more source
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
doaj +1 more source
Microcystin-LR Removal from Water via Enzymatic Linearization and Ultrafiltration
Toxins, 2022 Microcystin-LR (MC-LR) is a toxin produced by cyanobacteria that can bloom in freshwater supplies. This study describes a new strategy for remediation of MC-LR that combines linearization of the toxin using microcystinase A, MlrA, enzyme with rejection ...
Abelline Fionah +6 more
doaj +1 more source