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Download file3D reconstruction of a gas diffusion layer and a microporous layer
journal contribution
posted on 2011-04-20, 14:12 authored by Hossein Ostadi, Kyle Jiang, Pratap Rama, Yu Liu, Rui ChenThe 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.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
OSTADI, H. 3D reconstruction of a gas diffusion layer and a microporous layer. Journal of Membrane Science, 351(1-2), pp. 69-74Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publication date
2010ISSN
0376-7388Publisher version
Language
- en