Development of Radiation-Grafted Membranes for Fuel Cell Applications Based on Poly(ethylene-alt-tetrafluoroethylene)

Author(s):  
H. P. Brack ◽  
F. N. Büchi ◽  
J. Huslage ◽  
M. Rota ◽  
G. G. Scherer
Keyword(s):  
Soft Matter ◽  
2021 ◽  
Author(s):  
Berlina Maria Mahimai ◽  
Gandhimathi Sivasubramanian ◽  
Poonkuzhali Kulasekaran ◽  
Paradesi Deivanayagam

New series of polymer composite membranes were prepared from sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block polystyrene (S-PSEBS) and copper oxide loaded in graphitic carbon nitride (g-C3N4) embedded with an ionic liquid 2,4,6-triphenylpyrylium tetrafluoroborate (TPTB)....


2012 ◽  
Vol 66 (12) ◽  
Author(s):  
Chumphol Yunphuttha ◽  
Win Bunjongpru ◽  
Supanit Porntheeraphat ◽  
Atchana Wongchaisuwat ◽  
Charndet Hruanun ◽  
...  

AbstractA direct-methanol fuel cell containing three parts: microchannels, electrodes, and a proton exchange membrane (PEM), was investigated. Nafion resin (NR) and polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (PS) were used as PEMs. Preparation of PEMs, including compositing with other polymers and their solubility, was performed and their proton conductivity was measured by a four point probe. The results showed that the 5 % Nafion resin has lower conductivity than the 5 % PS solution. The micro-fuel cell contained two acrylic channels, PEM, and two platinum catalyst electrodes on a silicon wafer. The assembled micro-fuel cells used 2 M methanol at the flow rate of 1.5 mL min−1 in the anode channel and 5 × 10−3 M KMnO4 at the flow rate of 1.5 mL min−1 in the cathode channel. The micro-fuel cell with the electrode distance of 300 μm provided the power density of 59.16 μW cm−2 and the current density of 125.60 μA cm−2 at 0.47 V.


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