3D reconstruction of a gas diffusion layer and a microporous layer

By H. Ostadi, P. Rama, Y. Liu, Rui Chen, Xiaoxian Zhang, K. Jiang. 2010

177 citations recorded by the source corpus.

Abstract The focus of the current study is on a state-of-the-art twin-layer gas diffusion layer (GDL) which consists of carbon tissues with a fibre diameter of 5–20 μm, and contains a microporous layer (MPL) coating which has sub-micron porous features. In the current study, real-world digital three-dimensional images of the GDL-MPL assembly are created through X-ray nano-tomography with a 680 nm pixel resolution for the GDL and focused ion beam/scanning electron microscopy (FIB/SEM) nano-tomography with a 14 nm pixel resolution for the MPL. The critical nano-structural features including porosity, characteristic lengths and 3D pore size distribution are determined directly from the 3D digital representation. In addition to morphological parameters, the FIB/SEM nano-tomography technique has been combined with lattice Boltzmann (LB) numerical modelling in order to calculate the tortuosity and permeability of the MPL.

Subfields: Biomedical Engineering, Computational Mechanics

View Paper: https://www.semanticscholar.org/paper/6b13775d7c9f0f0d2d364da66d563882da8bbde5

Citations in the corpus

• Tortuosity of porous media: Image analysis and physical simulation (2021, unknown): “The LBM models the fluid particles through a time-dependent distribution propagating on a regular lattice (Krüger et al., 2017).”