| 초록 |
Proton exchange membranes (PEMs) should satisfy stringent requirements in relation to proton conductivity, fuel permeability, and mechanical strength. In addition to these basic properties, chemical stability is one of most important factors for maintaining the reliability of electrochemical performances based on the PEMs, since fuel cell is a complex system containing numerous chemicals such as novel metal catalysts, fuel molecules, oxidants, and free radicals. Up to now, a lot of effort has been made to enhance resistances of PEMs to the aggressive chemicals. In this present study, an approach to improve membrane stability to peroxide radicals was investigated via the incorporation of organometallic complex including Al2O3 and MnO2. The effect of the organometallic fillers on the membrane performances as well as resistance to free radical attack was discussed considering the availability of the fillers as radical scavengers. |
