Results 161 to 170 of about 2,265 (207)

An amphoteric and hydrogen-bond-rich artificial α-amino acid for highly durable aqueous redox flow batteries. [PDF]

Nat Commun
Zhang P, Liu Y, Wei J, Wu Z, Song X, Ding G, Wang H, Liang J, Tie Z, Jin Z.   +9 more
europepmc   +1 more source

Multifunctional surface of the nano-morphic PEEK implant with enhanced angiogenic, osteogenic and antibacterial properties. [PDF]

Regen Biomater
Zhang J, Ma T, Liu X, Zhang X, Meng W, Wu J.   +5 more
europepmc   +1 more source

Modified SPEEK membranes for direct ethanol fuel cell

Journal of Power Sources, 2010
Membranes with low ethanol crossover were prepared aiming their application for direct ethanol fuel cell (DEFC). They were based on (1) sulfonated poly(ether ether ketone) (SPEEK) coated with carbon molecular sieves (CMS) and (2) on SPEEK/PI homogeneous ...
Suzana P Nunes
exaly   +4 more sources

Efficient removal of indigo dye by using sulfonated poly (ether ether ketone) (sPEEK), montmorillonite (MMT) and sPEEK-MMT composites as novel adsorbent

Chemical Physics Letters, 2022
In this study, indigo blue (IB) was adsorbed on individual sulfonated poly (ether ether ketone) (sPEEK), montmorillonite (MMT) and sPEEK-MMT composites for the first time.
Julide Hizal, Nergiz Kanmaz, Erol Ercag   +2 more
exaly   +2 more sources

Thermal crosslinked and nanodiamond reinforced SPEEK composite membrane for PEMFC

International Journal of Hydrogen Energy, 2013
SPEEK has been widely considered as a promising alternative to Nafion(R) membrane for PEMFC. However, a conflict between high degree of sulfonation (DS) and poor mechanical strength needs to be resolved prior to wide application.
Riccardo Polini, Maria Luisa Di Vona, Xianxi Liu   +2 more
exaly   +2 more sources

Performance of SPEEK based polymer–nanoclay inorganic membrane for DMFC [PDF]

Journal of Membrane Science, 2011
Sulfonated poly (ether ether ketone) (SPEEK) membrane with degree of sulfonation (DS) of 63% was modified by adding various amounts of Cloisite15A ® clay.
Juhana Jaafar, Ahmad Fauzi Ismail
exaly   +2 more sources

Preparation and barrier properties of SPEEK/Cloisite 15A®/TAP nanocomposite membrane for DMFC application

Journal of Membrane Science, 2009
Sulfonated poly (ether ether ketone) (SPEEK)/Cloisite 15A® nanocomposite membranes were fabricated by incorporating 2,4,6-triaminopyrimidine (TAP) as compatiblizer and characterized for DMFC application.
Juhana Jaafar, Ahmad Fauzi Ismail
exaly   +2 more sources

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Properties of Composite Membranes of SPEEK and Nanodiamond

MRS Proceedings, 2012
AbstractThe manufacture of composite materials can improve the properties of proton-conducting polymers as membranes in PEM fuel cells. We have investigated composite membranes obtained by dispersion of nanodiamond particles in a sulfonated PolyEtherEtherKetone (SPEEK) matrix. SPEEK is a major proton-conducting aromatic polymer.
Hou H., Maranesi B., Khadhraoui M., Knauth P., Polini R., Di Vona M. L.   +5 more
openaire   +1 more source

Proton Conductivity of SPEEK Membranes

Polymer-Plastics Technology and Engineering, 2010
Novel sulfonated poly(ether ether ketone) (PEEK) copolymers were prepared using a low-viscosity grade PEEK powder. The TGA studies indicated that SPEEK membranes with up to 75% DS have enough thermal stability. The highest conductivity of 2.176 × 10−2 S cm−1 has been observed at 100°C for SP96 (DS = 72%).
G. M. Shashidhara, K. Naveen Kumar
openaire   +1 more source

Effect of IEC and Loading of Cathode SPEEK Binder on Kinetic and Transport Properties of All-SPEEK MEAs

ECS Transactions, 2007
The choice of polyelectrolyte in the catalyst layer is an important consideration in the formation and efficacy of the triple phase boundary. It also influences the stability of the electrolyte/electrode interface for long term fuel cell performance. The polyelectrolyte composition in the electrode has to be optimum for higher Pt utilization and hence
Satheesh Kumar Sambandam, V. Ramani
openaire   +1 more source