Enhanced physical stability and chemical durability of sulfonated poly(arylene ether sulfone) composite membranes having antioxidant grafted graphene oxide for polymer electrolyte membrane fuel cell applications

2017 ◽  
Vol 525 ◽  
pp. 125-134 ◽  
Author(s):  
Kihyun Kim ◽  
Jungmoon Bae ◽  
Min-Young Lim ◽  
Pilwon Heo ◽  
So-Won Choi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Physical Stability ◽  
Composite Membranes ◽  
Chemical Durability ◽  
Electrolyte Membrane ◽  
Arylene Ether ◽  
Sulfonated Poly

scholarly journals Polymer Electrolyte Membrane Fuel Cell Performance of a Sulfonated Poly(Arylene Ether Benzimidazole) Copolymer Membrane

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Hasan Ferdi Gerçel ◽  
Çağla Gül Tosun ◽  
Levent Akyalçın
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Proton Exchange ◽  
Cell Performance ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Electrolyte Membrane ◽  
Arylene Ether ◽  
Sulfonated Poly

Disodium-3,3′-disulfonate-4,4′-dichlorodiphenylsulfone (SDCDPS) and 5,5′-bis[2-(4-hydroxyphenyl)benzimidazole] (HPBI) monomers were synthesized. Binding these monomers via nucleophilic aromatic polycondensation reaction, a sulfonated poly(arylene ether benzimidazole) copolymer was synthesized. Structures of monomers and copolymer were confirmed by proton nuclear magnetic resonance spectroscopy (1H NMR) and Fourier transform infrared (FTIR) spectroscopy analyses. Proton exchange membrane was prepared by dissolving copolymer in dimethylacetamide (DMAc) and casting onto a glass plate. Copolymer membrane was doped with sulfuric acid to ensure proton exchange character. Single cell performance of the copolymer membrane was tested in a polymer electrolyte membrane fuel cell test station. The highest power density of the membrane was measured as 23.7 mW cm−2 at 80°C. Thermogravimetric analysis (TGA) showed that as the degree of disulfonation is increased thermal stability of the copolymer is increased.

Novel composite membranes of triazole modified graphene oxide and polybenzimidazole for high temperature polymer electrolyte membrane fuel cell applications

RSC Advances ◽  
2015 ◽  
Vol 5 (122) ◽  
pp. 101049-101054 ◽  
Author(s):  
Jingshuai Yang ◽  
Chao Liu ◽  
Liping Gao ◽  
Jin Wang ◽  
Yixin Xu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
High Temperature ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Composite Membranes ◽  
Electrolyte Membrane ◽  
Modified Graphene Oxide ◽  
Modified Graphene

Novel acid-doped membranes possessing improved proton conductivity and enhanced mechanical properties were prepared from polybenzimidazole and triazole modified graphene oxide.

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