The Reconstruction of the 3D catalyst layer microstructure from 2D SEM images using stochastic methods. A random walk algorithm was implemented for obtaining the effective Knudsen diffusion coefficient from 3D reconstructed structures. Experimental characterization of catalyst layer structural properties such as pore size distribution, surface area, and effective transport coefficients. Modeling of mass transport in reconstructed structure using a pore-network approach and finite-volume method.
Pore and particle size distributions extracted from 2D SEM images using a local thickness image filter.
3D visualization of the reconstructed catalyst layer structure.
2D image slices of the model domain, (left), pore/particle size filter (middle), and medial axis transform (right)