Nafion® and nano-size TiO2–SO42− solid superacid composite membrane for direct methanol fuel cell

2008 ◽  
Vol 313 (1-2) ◽  
pp. 336-343 ◽  
Author(s):  
Zhimou Wu ◽  
Gongquan Sun ◽  
Wei Jin ◽  
Hongying Hou ◽  
Suli Wang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Composite Membrane ◽  
Direct Methanol Fuel Cell ◽  
Solid Superacid ◽  
Direct Methanol ◽  
Nano Size ◽  
Methanol Fuel Cell

Nafion-sulfonated poly(arylene ether sulfone) composite membrane for direct methanol fuel cell

2005 ◽  
Vol 13 (6) ◽  
pp. 514-520 ◽  
Author(s):  
Jisu Choi ◽  
Il Tae Kim ◽  
Sung Chul Kim ◽  
Young Taik Hong
Keyword(s):  
Fuel Cell ◽  
Composite Membrane ◽  
Direct Methanol Fuel Cell ◽  
Arylene Ether ◽  
Direct Methanol ◽  
Methanol Fuel Cell ◽  
Sulfonated Poly

Effect of Solution Casting Temperature on Characteristic of Nafion®-Mordenite Composite Membrane for Direct Methanol Fuel Cell

2014 ◽  
Vol 666 ◽  
pp. 3-7
Author(s):  
Theampetch Apichaya ◽  
Paweena Prapainainar ◽  
Chaiwat Prapainainar
Keyword(s):  
Fuel Cell ◽  
Ion Exchange ◽  
Composite Membrane ◽  
Direct Methanol Fuel Cell ◽  
Composite Membranes ◽  
Exchange Capacity ◽  
Solution Casting ◽  
Ion Exchange Capacity ◽  
Direct Methanol ◽  
Methanol Fuel Cell

In this paper, proton conducting composite membranes of Nafion®-mordenite for direct methanol fuel cell (DMFC) were prepared using solution casting method. Mordenite, used as inorganic filler, was incorporated into Nafion polymer in order to improve membrane properties for DMFC application. Effect of solution casting temperature on resulting composite membranes was focused. The temperature of the membrane preparation was varied from 80 to 120°C. Properties and morphology of the resulting membranes including solubility, water uptake, ion – exchange capacity were investigated and reported. It was found that composite membrane prepared at 100°C gave the most alcohol resistance and mechanical stability membrane with 0.59% soluble. Furthermore, it gave highest ion – exchange capacity, 0.10 meq⋅g-1, which is 33% and 98% higher than the membranes prepared at 80°C and 120°C respectively.

scholarly journals Design and Optimization of a Hyper-Branched Polyimide Proton Exchange Membrane with Ultra-High Methanol-Permeation Resistivity for Direct Methanol Fuel Cells Applications

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1175 ◽  
Author(s):  
Liying Ma ◽  
Guoxiao Xu ◽  
Shuai Li ◽  
Jiao Ma ◽  
Jing Li ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Composite Membrane ◽  
Direct Methanol Fuel Cell ◽  
Polyvinylidene Fluoride ◽  
Proton Exchange Membrane ◽  
Direct Methanol Fuel Cells ◽  
Proton Exchange ◽  
Direct Methanol ◽  
Methanol Fuel Cell ◽  
Methanol Permeation

A hyper-branched sulfonated polyimide (s-PI) was synthesized successfully and composited with polyvinylidene fluoride (PVDF) to achieve ultra-high methanol-permeation resistive for direct methanol fuel cell application. The optimized s-PI-PVDF composite membrane exhibited methanol resistivity low to 1.80 × 10−8 cm2/s, two orders of magnitude lower than the value of the commercial Nafion 117 membrane (60 × 10−7 cm2/s). At the same time, the tensile strength of the composite membrane is 22 MPa, which is comparable to the value of the Nafion 117 membrane. Therefore, the composite membrane is promising for application in direct methanol fuel cell.

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