Electrochemical properties of PEM fuel cells based on Nafion–polybenzimidazole–imidazole hybrid membranes

Nafion‐115/aromatic poly(etherimide) with isopropylidene groups/imidazole membranes for polymer fuel cells

“…It is clearly seen that decomposition temperatures of the composed membranes were about 40°C higher than that of Nafion‐115. Similar results were found in our previous works and in Refs. and .…”

“…In our knowledge this is the first example of modification of Nafion membrane properties by immersion in five‐membered ring polyimide. Finally, electrochemical properties obtained in this work for Nafion‐115/PI were compared with Nafion‐115/Im, Nafion‐115/BAPBI and Nafion‐115/PBICF 3 described in details in our previous studies . We have discovered that applying PI in Nafion‐115 membrane caused the increase of the maximum power density (171 mW/cm 2 at 60°C) in comparison to other investigated by us Nafion‐115 membranes …”

“…In our previous work, we have investigated influence of polybenzimidazole (PBICF 3 ), imidazole and 2,2′‐bis(4‐aminophenyl)−5,5′‐bibenzimidazole (BAPBI) on the electrochemical properties of Nafion‐115 membrane. In the last decade acid‐base blend membranes consisting of polymer with sulfonic groups and a basic compound with N‐heterocycle groups are one of the most promising directions for development of PEMFCs …”

Bio‐inspired proton conducting phytagel derived zwitterionic complex membranes for fuel cells

“…[25][26][27][28] However, these generally exhibit high production cost, low thermal stability, water dependent proton conductivity, and relatively low operational temperatures. 29,30 Therefore, many studies have considered alternative materials for Nafion membranes. 31,32 Natural carbohydrate polymers could be the suitable alternatives for energy generation and storage devices, particularly for PEMFCs due to their high abundance, cost effectiveness, and eco-friendly nature.…”

Novel octopus shaped organic–inorganic composite membranes for PEMFCs

“…Polybenzimidazoles (PBIs) have motivated extensive research activities with great progresses in recent years, because of their excellent chemical and thermal stabilities [12][13][14][15]. ABPBI [16] which is the simplest polybenzimidazole type polymer possessing comparable thermal and conducting properties as that of PBIs has also attracted the attention of many research groups in recent years [17][18][19][20][21][22][23].…”