The historical development and current status of gas diffusion electrodes for polymer electrolyte fuel cells (PEFCs) are presented. Two and three-layer electrodes are compared. The effects of both the characteristics and the amount of the materials composing the electrode on the cell performance are presented. These include: the characteristics of the porous substrate; the wettability of the diffusion layer; the characteristics of the catalyst, which is commonly platinum supported on carbon (Pt loading, Pt particle size, Pt/C ratio, Pt deposition method); the presence of perfluorosulfonate ionomer; and the way that the catalytic layer is filled. Attention is also given to the fabrication process of the electrodes and thermal treatments. ©1998 Matrice Technology Ltd.
|Pages (from-to)||67 - 68|
|Number of pages||2|
|Publication status||Published - Jun 1998|
All Science Journal Classification (ASJC) codes
- Materials Science(all)