Proton conductivity enhancement by nanostructural control of sulphonated poly (ether ether ketone) membranes

2010 ◽  
Vol 35 (15) ◽  
pp. 8337-8342 ◽  
Author(s):  
Yuwei Zhang ◽  
Junjie Ge ◽  
Zhiming Cui ◽  
Changpeng Liu ◽  
Wei Xing ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Conductivity Enhancement ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

scholarly journals Sulfonated Poly(ether ether ketone) Doped with Ammonium Ionic Liquids and Nano-Silicon Dioxide for Polymer Electrolyte Membranes

Polymers ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 7 ◽  
Author(s):  
Shuguo Qu ◽  
Minhui Li ◽  
Chenchen Zhang ◽  
Yuanyuan Sun ◽  
Jihai Duan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Silicon Dioxide ◽  
Proton Conductivity ◽  
Composite Membranes ◽  
Nano Sio2 ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Nano Silicon ◽  
Sulfonated Poly

Nano-silicon dioxide (SiO2) was incorporated into the matrix of sulfonated poly(ether ether ketone) (SPEEK)/ammonium ionic liquid (AIL) membranes by solution casting, with the aim of reducing ionic liquid leaching and any consequent decrease in proton conductivity. Fourier transform infrared (FTIR) spectra results indicate incorporation of the SPEEK matrix with AIL and nano-SiO2. Scanning electron microscopy (SEM) and X–ray diffraction (XRD) images revealed that incorporation of nano-SiO2 make the ternary composite membranes more flexible. The maximum ion exchange capacity (IEC) value was 3.25 meq/g, and the net structure formed by the nano-SiO2 not only retarded AIL leaching, but also increased the proton conductivity of the composite membranes. AIL leaching from the membranes was between 20% and 30%, which was lower than that of the SPEEK/AIL membrane. The maximum proton conductivity for the SPEEK/AIL/SiO2 membranes reached 10.73 mS/cm at 393 K.

Novel composite membranes based on sulfonated poly(ether ether ketone) and adenosine triphosphate for enhanced proton conduction

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75434-75441 ◽  
Author(s):  
Yongheng Yin ◽  
Jiahui Wang ◽  
Shengtao Jiang ◽  
Xin Yang ◽  
Xuya Zhang ◽  
...  
Keyword(s):  
Proton Conductivity ◽  
Adenosine Triphosphate ◽  
Composite Membranes ◽  
Proton Conduction ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

Novel SPEEK/ATP composite membranes were prepared via a facile method, achieving improved proton conductivity under different conditions.

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