Improvement of proton exchange membrane fuel cell electrical performance by optimization of operating parameters and electrodes preparation

摘要: The effect of operating parameters (cell temperature, humidifiers gases flows and pressures) on the performance a 25 cm 2 surface area fuel cell is performed. After optimization, homemade MEA fitted with electrodes prepared via colloidal route leads to achieve reproducibly maximum power densities higher than 1.2 W −2 total catalyst loading 0.7 mgPt (corresponding 1. 7k g −1 Pt ). This electrical that obtained commercial provided by store (total platinum mg density close 1 , corresponding 0.75 kW Based this experience, two different MEAs are tested under optimal conditions compared one. final goal decrease significantly preserving at least equivalent PEMFC performance. method deposition plasma sputtering used further down 0.45 . Very interesting performances (close ) were low-platinum 6k However, it was shown in cathode from 0.35 0.1 affects