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 ◽  
...  

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

2017 ◽  
Vol 75 (8) ◽  
pp. 3739-3751 ◽  
Author(s):  
Xiuling Zhu ◽  
Jianyu Huang ◽  
Cuihong Jin ◽  
Shuai Zhang ◽  
Shuai Li ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84689-84693 ◽  
Author(s):  
Huaxue Cai ◽  
Xuefei Wu ◽  
Qingyin Wu ◽  
Fahe Cao ◽  
Wenfu Yan

Reduced graphene oxide (rGO) and sulfonated polyether ether ketone (SPEEK) were introduced into a tungstovanadophosphoric acid (H6PW9V3O40, abbreviated as PW9V3) to prepare a novel PW9V3/rGO/SPEEK hybrid proton conduction material.


2005 ◽  
Vol 885 ◽  
Author(s):  
Barbara Mecheri ◽  
Alessandra D'Epifanio ◽  
Maria Luisa Di Vona ◽  
Enrico Traversa ◽  
Silvia Licoccia ◽  
...  

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.


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