| 초록 |
To date, most research for automotive applications has focused on proton exchange membrane fuel cells (PEMFCs), because these systems have demonstrated the highest power density. Recently, however, an alternative technology, alkaline exchange membrane fuel cells (AEMFCs), has gained significant attention, because of the possibility to use stable platinum-group-metal-free catalysts and more inexpensive hydrocarbon-based membranes. In this talk, we discuss the AEM challenges include mechanical stability, high conductivity, improved water transport, and environmentally-friendly, low cost synthesis routes. In addition, we also discuss catalyst development needs for AEMFCs and set catalyst activity targets to achieve performance parity with state-of-the-art automotive PEMFCs. Meeting these targets requires careful optimization of nanostructures to pack high surface areas into a small volume, while maintaining high area-specific activity and favourable pore-transport properties. |
