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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/8307

Title: 3D reconstruction of a gas diffusion layer and a microporous layer
Authors: Ostadi, Hossein
Jiang, Kyle
Rama, Pratap
Liu, Yu
Chen, Rui
Keywords: Gas diffusion layer
Microporous layer
FIB/SEM nano-tomography
X-ray nanotomography
Lattice Boltzmann numerical modeling
Issue Date: 2010
Publisher: © Elsevier
Citation: OSTADI, H. 3D reconstruction of a gas diffusion layer and a microporous layer. Journal of Membrane Science, 351(1-2), pp. 69-74
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 threedimensional 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, characteristics lengths and 3D pore size distribution are determined directly from the 3D digital representation. In addition to morphological parameters, the FIB/SEM nanotomography technique has been combined with lattice Boltzmann (LB) numerical modelling in order to calculate the tortuosity and permeability of the MPL.
Version: Accepted for publication
DOI: 10.1016/j.memsci.2010.01.031
URI: https://dspace.lboro.ac.uk/2134/8307
Publisher Link: http://dx.doi.org/10.1016/j.memsci.2010.01.031
ISSN: 0376-7388
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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