scholarly journals Modification of Poly(ether ether ketone) Polymer for Fuel Cell Application

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Devesh Shukla ◽  
Yuvraj Singh Negi ◽  
Vijai Kumar
Keyword(s):  
Thermal Stability ◽  
Fuel Cell ◽  
Phosphonic Acid ◽  
Pem Fuel Cell ◽  
Acid Group ◽  
Good Thermal Stability ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Phosphonic Acid Group ◽  
Ether Ketone

Polyelectrolyte membrane (PEM) is an important part of PEM fuel cell. Nafion is a commercially known membrane which gives the satisfactory result in PEM fuel cell operating at low temperature. Present research paper includes functionalization of Poly(ether ether ketone) (PEEK) polymer with phosphonic acid group. The functionalization was done with the help of nickel-based catalyst. Further, the polymer was characterized by the FTIR, EDAX, DSC, TGA, and 1H NMR, and it was found that PEEK polymer was functionalized with phosphonic acid group with good thermal stability in comparison to virgin PEEK. Finally, the thin films of functionalized polymer were prepared by solution casting method, and proton conductivity of film samples was measured by impedance spectra whose value was found satisfactory with good thermal stability in comparison to commercially available Nafion membrane.

Preparation of poly(ether ether ketone)-based composite with high electrical conductivity, good mechanical properties and thermal stability

2016 ◽  
Vol 29 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Yu Jin Lin ◽  
Shi Qin ◽  
Bing Han ◽  
Cong Gao ◽  
Shu Ling Zhang
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Electrical Conductivity ◽  
High Electrical Conductivity ◽  
Aryl Ether ◽  
Good Thermal Stability ◽  
Ether Ether Ketone ◽  
Peek Composite ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

Poly(ether ether ketone)-based (PEEK-based) composites with high electrical conductivity, good mechanical properties, and thermal stability were prepared using multiwall carbon nanotubes (MWCNTs) as a conductive filler and the liquid crystalline copolymer of poly(aryl ether ketone) (FPEDEKKLCP) as a processing aid. The composites were fabricated using melt blending, and the MWCNT/PEEK composites with FPEDEKKLCP exhibited an obvious improvement in the measured electrical conductivity relative to the MWCNT/PEEK composite without FPEDEKKLCP. Moreover, the MWCNT/PEEK composites exhibited good mechanical properties and thermal stability after addition of an appropriate amount of FPEDEKKLCP. This is attributed to the good thermal stability of FPEDEKKLCP, wherein addition of FPEDEKKLCP effectively decreased the melt viscosity of the MWCNT/PEEK composites, accompanied by an improvement in the dispersion of the MWCNTs in the PEEK matrix.

Triple-layer sulfonated poly(ether ether ketone)/sulfonated polyimide membranes for fuel cell applications

2013 ◽  
Vol 26 (1) ◽  
pp. 106-113 ◽  
Author(s):  
Xiaobai Li ◽  
Yang Song ◽  
Zhuang Liu ◽  
Pengju Feng ◽  
Siyuan Liu ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Sulfonated Polyimide ◽  
Triple Layer ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly ◽  
Polyimide Membranes
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