Wednesday, December 23, 2015

Intrinsically microporous polymer slows down fuel cell catalyst corrosion

Intrinsically microporous polymer slows down fuel cell catalyst corrosion

Type
Journal Article
Author
Daping He
Author
Yuanyang Rong
URL
Volume
59
Pages
72-76
Publication
Electrochemistry Communications
Date
October 2015
Abstract
The limited stability of fuel cell cathode catalysts causes a significant loss of operational cell voltage with commercial Pt-based catalysts, which hinders the wider commercialization of fuel cell technologies. Authors explain the beneficial effects of a highly rigid and porous polymer of intrinsic microporosity in accelerated catalyst corrosion experiments.
Porous films of PIM-EA-TB offer an effective protective matrix for the prevention of Pt/C catalyst corrosion without impeding flux of reagents. The results of electrochemical cycling tests show that the PIM-EA-TB protected Pt/C exhibit a significantly enhanced durability as compared to a conventional Pt/C catalyst.

No comments:

Post a Comment