This open access book presents a thorough look at tortuosity and microstructure effects in
porous materials. The book delivers a comprehensive review of the subject, summarizing all …

We have shown in our former study [1] that ordered microstructures can improve the effective
electrical conductivity and permeability in the gas diffusion layer (GDL). However, the effect …

Within the past decade, X-ray micro computed tomography (µCT) has become an advanced
non-destructive tool to analyse the internal structure of opaque materials. In addition to high …

High-resolution X-ray computed tomography (micro-CT) has been widely used to
characterise fluid flow in porous media for different applications, including in gas diffusion …

The formation of discrete water clusters in polymer electrolyte fuel cell gas diffusion layers
(GDL) can lead to increased resistance for oxygen transport in the catalyst layer. This study …

Polymer electrolyte fuel cells are a key technology for future green energy systems for
transport applications and for balancing the intermittency of renewable energies. For wider …

This study utilises computational fluid dynamics simulations with the OpenFOAM
computational framework to investigate and compare the in-plane and through-plane …

Gas diffusion layers (GDLs) are commonly known as one of the critical water management
components in polymer electrolyte fuel cells with significant impact on the electrochemical …

Extending the operating range of fuel cells to higher current densities is limited by the ability
of the cell to remove the water produced by the electrochemical reaction, avoiding flooding …

We use fast synchrotron x-ray microtomography to investigate the pore-scale dynamics of
water injection in an oil-wet carbonate reservoir rock at subsurface conditions. We measure …