Preparation and characterizations of direct methanol fuel cell membrane from sulfonated polystyrene/poly(vinylidene fluoride) blend compatibilized with poly(styrene)-b-poly(methyl methacrytlate) block copolymer

2007 ◽  
Vol 107 (2) ◽  
pp. 1325-1336 ◽  
Author(s):  
P. Piboonsatsanasakul ◽  
J. Wootthikanokkhan ◽  
S. Thanawan
Keyword(s):  
Fuel Cell ◽  
Block Copolymer ◽  
Cell Membrane ◽  
Direct Methanol Fuel Cell ◽  
Vinylidene Fluoride ◽  
Sulfonated Polystyrene ◽  
Poly Vinylidene Fluoride ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Performance of the Self-Breathing Air Direct Methanol Fuel Cell with Modified Poly (Vinylidene Fluoride) Grafted onto a Blended Polystyrene Sulfonated Acid (m-PVDF-g-PSSA) Membranes

2010 ◽  
Vol 152-153 ◽  
pp. 149-153 ◽  
Author(s):  
Gui Bao Guo ◽  
Rui Hua Jie ◽  
Sheng Li An
Keyword(s):  
Fuel Cell ◽  
Direct Methanol Fuel Cell ◽  
Vinylidene Fluoride ◽  
Ambient Air ◽  
Operating Conditions ◽  
The Self ◽  
Electrode Assemblies ◽  
Poly Vinylidene Fluoride ◽  
Direct Methanol ◽  
Methanol Fuel Cell

This paper reports performance date for the direct methanol fuel cell (DMFC) with membrane electrode assemblies using modified poly (vinylidene fluoride) grafted the blended polystyrene sulfonated acid membranes (m-PVDF-g-PSSA) based on modified PVDF (poly vinylidene fluoride ) and the bended PSSA (polystyrene sulphonated acid). The membrane exhibited low methanol permeation coefficient, and good proton-conductivity. Furthermore, these materials have potentially lower methanol cross-over when compared to standard Nafion-type membranes. The membranes electrode assemblies were based on Nafion®-bonded carbon-supported catalyst: platinum/ruthenium for the anode and platinum for the cathode. The catalyst layer was coated directly on the treated membrane. To simulate the practical application, unit cell operates at room temperature and ambient pressure using liquid methanol and ambient air. A methanol solution is filled in the feed reservoir, and the cathode is exposed to ambient air. The cell performance of the self-breathing air DMFC, for short duration (<100h) testing, with the low cost membranes is superior to that of cells based on Nafion under identical operating conditions.

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