Figure 5
From: Structure and conductivity of ionomer in PEM fuel cell catalyst layers: a model-based analysis
(a) Simulation results of proton conductivity for the variation of \(x_{agg}\) and ionomer coverage \(a_{ion}\). Ionomer film thickness was held constant (\(t = 10~\text{nm}\)). (b) The observed trend can be described using Eq. (23) for the percolation interfacial surface area between agglomerates and secondary pores. (c) The underlying structural images are illustrated.
