Ion Exchange Membrane for PEFC

The structure of an ion exchange membrane for a polymer electrolyte fuel cell (PEFC) was studied using a NANOViewer and a Mettler hot stage.

RESULTS:

structure of an ion exchange membrane for a polymer electrolyte fuel cell (PEFC)
SAXS profile (left) and WAXS profile (right)



1st and 2nd peaks

The 1st and 2nd peaks come from the branched chains and inverted micelle (mainly water), respectively. This result of microscopic structure study indicates that the structure at 80°C is ideal.

1st, 2nd, and 3rd peaks

The 1st, 2nd, and 3rd peaks come from the periodic structure. The peak broadening of "wet" indicates disordering of the structure. This result of macroscopic structure indicates that the periodic structure shows disordering in humid environment.


The S-MAX3000 pinhole SAXS camera design is available with a choice of conventional or high brilliance X-ray sources. A 3-meter, fully evacuated camera length provides both high intensity and high resolution. Coupled with a fully integrated 2-dimensional multi-wire proportional counter, the system is capable of making highly sensitive measurements from both isotropic and anisotropic materials. A wide range of sample stage attachments provide maximum flexibility in controlling environmental sample conditions during measurement. Read more...