Self-aggregating cationic-chains enable alkaline stable ion-conducting channels for anion-exchange membrane fuel cells

2021 ◽  
Vol 9 (1) ◽  
pp. 327-337
Author(s):  
Jianjun Zhang ◽  
Kaiyu Zhang ◽  
Xian Liang ◽  
Weisheng Yu ◽  
Xiaolin Ge ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Side Chains ◽  
Ion Transfer ◽  
Ion Conducting ◽  
Fast Ion ◽  
Exchange Membrane

Self-aggregated cationic side chains construct efficient ion-conducting channels for fast ion transfer.

Impact of side-chains in poly(diphenyl-co-terphenyl piperidinium) copolymers for anion exchange membrane fuel cells

2021 ◽  
pp. 120109
Author(s):  
Hae Min Kim ◽  
Chuan Hu ◽  
Ho Hyun Wang ◽  
Jong Hyeong Park ◽  
Nanjun Chen ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Side Chains ◽  
Exchange Membrane

scholarly journals Polystyrene-Based Hydroxide-Ion-Conducting Ionomer: Binder Characteristics and Performance in Anion-Exchange Membrane Fuel Cells

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 690
Author(s):  
Ji Eon Chae ◽  
So Young Lee ◽  
Sung Jong Yoo ◽  
Jin Young Kim ◽  
Jong Hyun Jang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
High Performance ◽  
Membrane Electrode Assembly ◽  
Exchange Capacity ◽  
Anion Exchange Membrane ◽  
Membrane Electrode ◽  
Hydroxide Ion ◽  
Ion Conducting ◽  
Exchange Membrane

Polystyrene-based polymers with variable molecular weights are prepared by radical polymerization of styrene. Polystyrene is grafted with bromo-alkyl chains of different lengths through Friedel–Crafts acylation and quaternized to afford a series of hydroxide-ion-conducting ionomers for the catalyst binder for the membrane electrode assembly in anion-exchange membrane fuel cells (AEMFCs). Structural analyses reveal that the molecular weight of the polystyrene backbone ranges from 10,000 to 63,000 g mol−1, while the ion exchange capacity of quaternary-ammonium-group-bearing ionomers ranges from 1.44 to 1.74 mmol g−1. The performance of AEMFCs constructed using the prepared electrode ionomers is affected by several ionomer properties, and a maximal power density of 407 mW cm−2 and a durability exceeding that of a reference cell with a commercially available ionomer are achieved under optimal conditions. Thus, the developed approach is concluded to be well suited for the fabrication of next-generation electrode ionomers for high-performance AEMFCs.

The Chalkboard: Anion Exchange Membrane Fuel Cells

2010 ◽  
Vol 19 (2) ◽  
pp. 31-35 ◽  
Author(s):  
Christopher G. Arges ◽  
Vijay K. Ramani ◽  
Peter N. Pintauro
Keyword(s):  
Fuel Cells ◽  
Anion Exchange ◽  
Anion Exchange Membrane ◽  
Exchange Membrane
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