抄録
The mass transfer characteristics of gas diffusion layer (GDL) are closely related to cell performance in PEFC. In this study, the oxygen diffusivity of paper and cloth type porous media used generally as GDL with respect to its liquid water content were measured by using an experimental apparatus consist of oxygen sensor based on Galvanic battery, and liquid water distribution in each porous medium is visualized by using Neutron Radiography. The relationship between oxygen diffusivity and liquid water distribution has been studied for paper and cloth type GDL, respectively.
