Poly(fluorenyl aryl piperidinium) membranes and ionomers for anion exchange membrane fuel cells.

ABSTRACT: Low-cost anion exchange membrane fuel cells have been investigated as a promising alternative to proton exchange membrane fuel cells for the last decade. The major barriers to the viability of anion exchange membrane fuel cells are their unsatisfactory key components-anion exchange ionomers and membranes. Here, we present a series of durable poly(fluorenyl aryl piperidinium) ionomers and membranes where the membranes possess high OH^- conductivity of 208 mS cm^-1 at 80 °C, low H₂ permeability, excellent mechanical properties (84.5 MPa TS), and 2000 h ex-situ durability in 1 M NaOH at 80 °C, while the ionomers have high water vapor permeability and low phenyl adsorption. Based on our rational design of poly(fluorenyl aryl piperidinium) membranes and ionomers,

SUBMITTER: Chen N 

PROVIDER: S-EPMC8062622 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature