Abstract
The performance of PEMFC with pure oxygen or air as oxidant is experimentally compared. The reaction area of the PEMFC is 9 cm2, and the conventional parallel flow field is used. The experimental results show that the performance and limited current density of the PEMFC are enhanced with increasing operational temperature. Under the condition of present experiment, the anode stoichiometry/cathode stoichiometry should be larger than 1.5/3.0 with oxygen as oxidant, and the two parameters should be larger than 3.0/6.0 with air as oxidant. Compared with the condition of air as oxidant, the PEMFC performance can be significant improved with pure oxygen as oxidant. Therefore, it is suggested that the pure oxygen should be the preferred oxidant.
| Original language | English |
|---|---|
| Pages (from-to) | 496-498 |
| Number of pages | 3 |
| Journal | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics |
| Volume | 28 |
| Issue number | 3 |
| State | Published - May 2007 |
Keywords
- Oxidant
- Parallel flow field
- Performance of PEMFC
- Stoichiometry