| 초록 |
Anion exchange membrane fuel cells (AEMFCs) are, in principle, a viable alternative to PEMFCs and are currently garnering renewed attention. In an AEMFC, an anion exchange membrane conducts hydroxide anions during current flow, which results in several advantages. In particular, the oxygen reduction reaction (ORR) is much more facile in alkaline environments than in acidic environments. This could potentially facilitate the use of less expensive non-PGM catalysts with high stability in alkaline environments. In this talk, I will discuss the properties and performance of Pt-free nanomaterials and composites AEMFCs, particularly the ORR mechanisms of Pt-free nanomaterials near the surface and interface, with comparisons to those in bulk Pt, as well as the surface and interface effects on the anode and cathode performance, such as oxidation/reduction reaction rate and stability |
