Chemically modified proton-conducting membranes based on sulfonated polyimides: Improved water stability and fuel-cell performance

2006 ◽  
Vol 44 (12) ◽  
pp. 3751-3762 ◽  
Author(s):  
Yan Yin ◽  
Otoo Yamada ◽  
Shunsuke Hayashi ◽  
Kazuhiro Tanaka ◽  
Hidetoshi Kita ◽  
...  
2006 ◽  
Vol 11-12 ◽  
pp. 149-152
Author(s):  
Thanganathan Uma ◽  
Masayuki Nogami

Sol-gel derived high proton conducting P2O5-SiO2-PMA (phosphomolybdic acid, H3PMo12O40 nH2O) glasses as electrolyte were used for the H2/O2 fuel cell performance at 30 °C under humidification with H2- based gas at the anode and O2- based gas at the cathode. The performance of the electrode was evaluated by the measurement of cell potential-current density plots. While the polarization curve yields data related to basic cell performance, more detailed information can be found by electrochemical measurements with an impedance analyzer. The power density shows a similar pattern to current density. The maximum power density value of 16.2 mW/cm2 was achieved with 0.1 mg/cm2 of Pt/C loading electrode and P2O5-SiO2-PMA (4-92-4 mol %) at 30°C with 30 % humidity. The glass membrane here plays a key role as electrolyte medium for proton transport and barrier to avoid the direct contact between fuel and oxygen.


2010 ◽  
Vol 195 (1) ◽  
pp. 170-174 ◽  
Author(s):  
N. Gourdoupi ◽  
J.K. Kallitsis ◽  
S. Neophytides

Author(s):  
Junya Yagyu ◽  
M. Saidul Islam ◽  
Yuta Shudo ◽  
Masahiro Fukuda ◽  
Hideto Ushijima ◽  
...  

2013 ◽  
Vol 31 ◽  
pp. 120-124 ◽  
Author(s):  
So Young Lee ◽  
Dong Won Shin ◽  
Chenyi Wang ◽  
Kang Hyuck Lee ◽  
Michael D. Guiver ◽  
...  

2021 ◽  
Vol 4 (3) ◽  
pp. 2307-2317
Author(s):  
Aki Kobayashi ◽  
Takahiro Fujii ◽  
Chie Harada ◽  
Eiichi Yasumoto ◽  
Kenyu Takeda ◽  
...  

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