Sign in  |  Register
Cart

CSJ Journals

▾
  • -

2020, Vol.93, No.3

338-344

Sulfonated Poly(arylene perfluoroalkylene) Terpolymers as Novel Proton Exchange Membranes for High Performance Fuel Cells

Zhi Long ,1Junpei Miyake ,2 and Kenji Miyatake *2,3
1Interdisciplinary Graduate School of Medicine, Engineering, and Agricultural Sciences, University of Yamanashi, 4 Takeda, Kofu, Yamanashi 400-8510, Japan
2Clean Energy Research Center, University of Yamanashi, 4 Takeda, Kofu, Yamanashi 400-8510, Japan
3Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan
https://doi.org/10.1246/bcsj.20190351

Tools
PDF (3954K)
Abstract

We herein report a series of sulfonated poly(arylene perfluoroalkylene) terpolymers (SPAF-P) containing sulfophenylene, perfluoroalkylene, and meta- or para-phenylene groups in the main chain. The SPAF-P terpolymers with reasonable molecular weight and various ion exchange capacity (IEC = 1.85–3.18 meq g−1) provided transparent and flexible membranes. Compared with our previous membrane sharing the same perfluoroalkylene groups (SPAF-MM, IEC = 1.59 meq g−1), SPAF-P achieved higher proton conductivity over a wide range of humidity because of their higher IEC values. A fuel cell with SPAF-pP 1.85 membrane exhibited slightly higher performance than that of SPAF-MM at 30% RH with H2/air because of the improved proton conductivity. After the open-circuit voltage (OCV) hold test for 1000 h, the SPAF-pP fuel cell retained high OCV value (>0.94 V), similar polarization curves, ohmic resistance curves, molecular weight and chemical structure, indicating the excellent chemical stability of the SPAF-pP 1.85 membrane.

figure

The novel sulfonated poly(arylene perfluoroalkylene) terpolymer membranes exhibited mechanical toughness, high proton conductivity, and excellent fuel cell performance and durability outperforming previous ionomer membranes.

<< Previous Transfer Semihydrogenation of Alkynes Catalyzed by Imidazo[1,5-a]pyrid-3-ylidene–Pd Complexes: Positive Effects of Electronic and Steric Features on N-Heterocyclic Carbene Ligands Next >> Room-Temperature Activation of Methane and Direct Formations of Acetic Acid and Methanol on Zn-ZSM-5 Zeolite: A Mechanistic DFT Study

Select Issues

▾
  • -

Search for Articles

Advanced

Saved Search

Please login to view your saved searches.

Top Accessed Articles

Most Cited

Related Articles

  1. Effect of Sulfonated Triphenylphosphine Oxide Groups in Aromatic Block Copolymers as Proton-exchange Membranes
  2. Synthesis, Properties, and Fuel Cell Performance of Perfluorosulfonated Poly(arylene ether)s
  3. Synthesis and Properties of Sulfonated Poly(arylene ether) Block Copolymers as Proton Conductive Membranes
  4. Synthesis and Properties of Sulfonated and Brominated Poly(arylene ether)s as Proton Conductive Membranes
  5. Anion-exchange Membranes Containing Fluorinated Poly(arylene ether)s: Properties and Application in Pt-free Hydrazine Fuel Cell
MANAGE YOUR ALERTS
RECOMMEND TO LIBRARY