Effect of cesium salt of tungstophosphoric acid (Cs-TPA) on the properties of sulfonated polyether ether ketone (SPEEK) composite membranes for fuel cell applications

2010 ◽  
Vol 35 (15) ◽  
pp. 7784-7795 ◽  
Author(s):  
Hacer Doğan ◽  
Tülay Y. Inan ◽  
Elif Unveren ◽  
Metin Kaya
Keyword(s):  
Fuel Cell ◽  
Composite Membranes ◽  
Tungstophosphoric Acid ◽  
Cesium Salt ◽  
Polyether Ether Ketone ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone

Performances of Sulfonated Polyether Ether Ketone Composite Membranes for Fuel Cell Applications

2015 ◽  
Vol 14 (01n02) ◽  
pp. 1460016 ◽  
Author(s):  
Jun Ma ◽  
Dongyun Su ◽  
Hongjun Ni ◽  
Mingyu Huang ◽  
Xingxing Wang
Keyword(s):  
Fuel Cell ◽  
Composite Membranes ◽  
Exchange Capacity ◽  
Proton Exchange ◽  
Methanol Permeability ◽  
Ion Exchange Capacity ◽  
Polyether Ether Ketone ◽  
Fuel Cell Application ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone

A variety of modification approaches such as cross-linking and nano blending have been explored to prepare efficient membranes based on Sulfonated polyether ether ketone (SPEEK). The addition filler is also one of the most widely used approaches to modify the SPEEK. The crosslinked membranes were utilized as proton exchange membranes (PEM) for fuel cell application. The performances of these composite membranes were comparative researched in terms of water uptake, ion exchange capacity, proton conductivity, and methanol permeability.While the nanohybrid membranes display remarkably enhanced proton conduction property due to the incorporation of additional sites for proton transport and the formation of well-connected channels by bridging the hydrophilic domains in SPEEK matrix. The as-prepared nanohybrid membranes also show elevated thermal and mechanical stabilities as well as decreased methanol permeability.

scholarly journals Transport Properties and Mechanical Features of Sulfonated Polyether Ether Ketone/Organosilica Layered Materials Nanocomposite Membranes for Fuel Cell Applications

Membranes ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 87 ◽  
Author(s):  
Cataldo Simari ◽  
Apostolos Enotiadis ◽  
Isabella Nicotera
Keyword(s):  
Fuel Cell ◽  
Mechanical Strength ◽  
Transport Properties ◽  
Proton Conductivity ◽  
Composite Membranes ◽  
Significant Advance ◽  
Nanocomposite Membranes ◽  
Polyether Ether Ketone ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone

In this work, we study the preparation of new sulfonated polyether ether ketone (sPEEK) nanocomposite membranes, containing highly ionic silica layered nanoadditives, as a low cost and efficient proton exchange membranes for fuel cell applications. To achieve the best compromise among mechanical strength, dimensional stability and proton conductivity, sPEEK polymers with different sulfonation degree (DS) were examined. Silica nanoplatelets, decorated with a plethora of sulfonic acid groups, were synthesized through the one-step process, and composite membranes at 1, 3 and 5 wt% of filler loadings were prepared by a simple casting procedure. The presence of ionic layered additives improves the mechanical strength, the water retention capacity and the transport properties remarkably. The nanocomposite membrane with 5% wt of nanoadditive exhibited an improvement of tensile strength almost 160% (68.32 MPa,) with respect to pristine sPEEK and a ten-times higher rate of proton conductivity (12.8 mS cm−1) under very harsh operative conditions (i.e., 90 °C and 30% RH), compared to a filler-free membrane. These findings represent a significant advance as a polymer electrolyte or a fuel cell application.

scholarly journals Sulfonated Polyether Ether Ketone-Based Composite Membranes Doped with a Tungsten-Based Inorganic Proton Conductor for Fuel Cell Applications

2006 ◽  
Vol 153 (3) ◽  
pp. A463 ◽  
Author(s):  
Barbara Mecheri ◽  
Alessandra D’Epifanio ◽  
M. Luisa Di Vona ◽  
Enrico Traversa ◽  
Silvia Licoccia ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Conductor ◽  
Composite Membranes ◽  
Polyether Ether Ketone ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone

Application of polysulfone (PSf)– and polyether ether ketone (PEEK)–tungstophosphoric acid (TPA) composite membranes for water electrolysis

2008 ◽  
Vol 322 (1) ◽  
pp. 154-161 ◽  
Author(s):  
In-Young Jang ◽  
Oh-Hwan Kweon ◽  
Kyoung-Eon Kim ◽  
Gab-Jin Hwang ◽  
Sang-Bong Moon ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Composite Membranes ◽  
Tungstophosphoric Acid ◽  
Polyether Ether Ketone ◽  
Ether Ketone

scholarly journals Proton conducting electrospun sulfonated polyether ether ketone graphene oxide composite membranes

RSC Advances ◽  
2017 ◽  
Vol 7 (84) ◽  
pp. 53481-53491 ◽  
Author(s):  
Jose Luis Reyes-Rodriguez ◽  
Jorge Escorihuela ◽  
Abel García-Bernabé ◽  
Enrique Giménez ◽  
Omar Solorza-Feria ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Membranes ◽  
Proton Conducting ◽  
Oxide Composite ◽  
Polyether Ether Ketone ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

A series of novel composite membranes, based on sulfonated poly(ether ketone) (SPEEK) with a graphene oxide (GO) layer, were prepared.

Proton Conducting Electrolyte Membranes based on Tungsten Oxide and Sulfonated Polyether Ether Ketone Hybrid Composites

2005 ◽  
Vol 885 ◽  
Author(s):  
Barbara Mecheri ◽  
Alessandra D'Epifanio ◽  
Maria Luisa Di Vona ◽  
Enrico Traversa ◽  
Silvia Licoccia ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Proton Conductivity ◽  
Electrochemical Impedance ◽  
Hybrid Composites ◽  
Composite Membranes ◽  
Proton Exchange ◽  
The Body ◽  
Polyether Ether Ketone ◽  
Sulfonated Polyether Ether Ketone ◽  
Ether Ketone

ABSTRACTComposite membranes, prepared by mixing sulfonated polyether ether ketone (SPEEK) and WO3·2H2O in dimethylacetamide, were characterized by Thermogravimetry, Electrochemical Impedance Spectroscopy and Water Uptake measurements to evaluate their possible performance as proton exchange membranes (PEM). The body of results indicated the existence of a coordinative interaction between the water molecules of tungsten oxide and the sulfonic acid (-SO3H) groups of SPEEK. Moreover, EIS data demonstrated that the proton conductivity of the composite membranes is higher than both that of pure SPEEK and pure tungsten oxide, suggesting the presence of ion-rich regions where the proton transfer is favored. The SO3H - H2O interaction not only lead to enhancement of the proton conductivity of the membranes but also to improvement of their heat resistance as well as to decrease their water solubility.

Sign in / Sign up

Export Citation Format

Share Document