Results 41 to 50 of about 1,473 (204)

Actuators based on intrinsic conductive polymers/carbon nanoparticles nanocompositesElectroactive Polymer Actuators and Devices (EAPAD) 2013 [PDF]

, 2013
New polyaniline (PANi) synthesis was performed starting from non-toxic N-phenil-p-phenylenediamine (aniline dimer) using reverse addition of monomer to oxidizing agent, the synthesis allows to produce highly soluble PANi. Several types of doped PANi were
Accardo, Daisy, Ansaldo, A., Ariano, Paolo, Biso, M., Bocchini, Sergio, Lombardi, Mariangela, Ricci, D.   +6 more
core   +1 more source

Sulfonated polyether ether ketone – sulfonated graphene oxide composite membranes for polymer electrolyte fuel cells

RSC Adv., 2014
Sulfonated polyether ether ketone – sulfonated graphene oxide composite membranes for polymer electrolyte fuel cells have been prepared. Sulfonic acid functionalised graphene oxide nanosheets were incorporated into the sulfonated polyether ether ketone structure to interconnect the proton transport channels.
Kumar R, Mamlouk M, Scott K
openaire   +2 more sources

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, Zhengping Zhao, Chenyu Pan, Lixin Xue, Mingqiang Zhong   +4 more
doaj   +1 more source

The Effects of Sulfonated Poly(ether ether ketone) Ion Exchange Preparation Conditions on Membrane Properties

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, Kaisong Zhang, Bradley P. Ladewig   +2 more
doaj   +1 more source

Effect of Covalent Organic Frameworks Containing Different Groups on Properties of Sulfonated Poly(ether ether ketone) Matrix Proton Exchange Membranes

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, Yinan Lv, Lei Ding, Luman Peng, Qiwang Peng, Chuanbo Cong, Haimu Ye, Qiong Zhou   +7 more
doaj   +1 more source

Sulfonated polyether ether ketone-based composite membranes doped with a tungsten-based inorganic proton conductor for fuel cell applications [PDF]

, 2006
Sulfonated polyether ether ketone (SPEEK)-based composite membranes doped with hydrated tungsten oxide were prepared and studied for proton exchange membrane applications.
D'Epifanio, A, Di Vona, ML, Licoccia, S, Mecheri, B, Miyayama, M, Traversa, E   +5 more
core   +2 more sources

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

International 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, Eniya Listiani Dewi Listiani Dewi   +1 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, Aida Karimi, Soosan Rowshanzamir   +2 more
doaj   +1 more source

Hyperbranched macromolecules: From synthesis to applications [PDF]

, 2018
Hyperbranched macromolecules (HMs, also called hyperbranched polymers) are highly branched three-dimensional (3D) structures in which all bonds converge to a focal point or core, and which have a multiplicity of reactive chain-ends.
Gao, Hyuk-Jun Noh, In-Yup Jeon, Jong-Beom Baek, Zhou   +4 more
core   +2 more sources

Optimization of sPEEK/S-TiO2 nanocomposite membranes using response surface methodology for low-temperature fuel cell

Results in Engineering
Polyether-ether-ketone (PEEK), a speciality thermoplastic polymer is treated with concentrated sulfuric acid to introduce sulfonated repeating units in its backbone.
Mawlood Maajal Ali, Ali Basem, Anmar Sh Jasim, Dheyaa J. Jasim, Ameer Azam, S.J.A. Rizvi, Yusra A. AlBahadli, Maryam Hussein Abdulameer   +7 more
doaj   +1 more source