Open Access
表2
数值模型的参数
| 参数 | 数值 | 参数 | 数值 | |
| 扩散层孔隙率 | 0.6 | 催化层孔隙率 | 0.5 | |
| 扩散层渗透率/m2 | 6.2×10-12 | 催化层渗透率/m2 | 6.2×10-13 | |
| 扩散层接触角/(°) | 100 | 催化层接触角/(°) | 100 | |
| 扩散层电导率/(S·m-1) | 300 | 催化层电导率/(S·m-1) | 300 | |
| H2参考浓度/(mol·m-3) | 40.88 | O2参考浓度/(mol·m-3) | 40.88 | |
| 阳极催化层比表面积/m-1 | 100 000 | 阴极催化层比表面积/m-1 | 100 000 | |
| 阳极化学计量 | 1.2 | 阴极化学计量 | 2.0 | |
| 阳极压力/Pa | 101 325 | 阴极压力/Pa | 101 325 | |
| PEM等效摩尔质量/(kg·mol-1) | 1.1 | PEM密度/(kg·m-3) | 1 980 | |
| 阳极传递系数 | 0.5 | 阴极传递系数 | 0.7 | |
| 阳极铂载量/(mg·cm-2) | 0.1 | 阴极铂载量/(mg·cm-2) | 0.4 |
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