Double-filler composite sulfonated poly(aryl ether ketone) membranes with graphite carbon nitride and graphene oxide as polyelectrolyte for fuel cells

Polymer ◽  
2022 ◽  
Vol 238 ◽  
pp. 124426
Author(s):  
Yuhao Wang ◽  
Lili Liu ◽  
Yue Liu ◽  
Na Li ◽  
Zhaoxia Hu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Carbon Nitride ◽  
Aryl Ether ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

The preparation of novel sulfonated poly(aryl ether ketone sulfone)/TiO2 composite membranes with low methanol permeability for direct methanol fuel cells

2020 ◽  
pp. 095400832095804
Author(s):  
Chengyun Yuan ◽  
Yinghan Wang
Keyword(s):  
Sulfonic Acid ◽  
Direct Methanol Fuel Cells ◽  
Composite Membranes ◽  
Methanol Permeability ◽  
Aryl Ether ◽  
Direct Methanol ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonic Acid Groups ◽  
Sulfonated Poly

A sulfonated poly(aryl ether ketone sulfone) (SPAEKS) with locally dense sulfonic acid groups is synthesized and different amounts of TiO2 is doped into SPAEKS matrix to prepare composite membranes (SPAEKS/TiO2-x). SEM shows that TiO2 in the composite membranes has good dispersibility when TiO2 content is not higher than 3%. The composite membranes show good mechanical properties, dimensional stability and oxidative stability. The proton conductivity of composite membranes is near to that of Nafion 117 membrane and methanol permeability of composite membranes is much lower than that of Nafion 117 membrane. Therefore, the proton selectivity of composite membranes is higher than that of Nafion 117 membrane. In particular, proton selectivity of SPAEKS/TiO2-3% (12.8 × 104 S s cm−3) is four times higher than that of Nafion 117 membrane (3.2 × 104 S s cm−3).

Crosslinking effect in nanocrystalline cellulose reinforced sulfonated poly(aryl ether ketone) proton exchange membranes

2018 ◽  
Vol 323 ◽  
pp. 5-15 ◽  
Author(s):  
Chuangjiang Ni ◽  
Hanbing Wang ◽  
Qi Zhao ◽  
Baijun Liu ◽  
Zhaoyan Sun ◽  
...  
Keyword(s):  
Proton Exchange Membranes ◽  
Nanocrystalline Cellulose ◽  
Proton Exchange ◽  
Aryl Ether ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly
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