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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Kim, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Revisiting the use of the EORTC QLQ-STO22 to assess health-related quality of life of patients with gastric cancer: incorporating updated treatment options and cross-cultural perspectives
- 2023Compressive effects in melting of palladium thin films studied by ultrafast x-ray diffraction
- 2023Thin solid electrolyte separators for solid-state lithium–sulfur batteriescitations
- 2022Multiple proliferation signaling pathways are modulated by octacalcium phosphate in osteoblasts.citations
- 2022A tag-and-count approach for quantifying surface silanol densities on fused silica based on atomic layer deposition and high-sensitivity low-energy Ion scatteringcitations
- 2022Analysis of the Microstructure Role in the Yield Asymmetry of Extruded Mg-LPSO Alloys Using In Situ Diffraction Experimentscitations
- 2021Exfoliated bentonite/alginate nanocomposite hydrogel enhances intestinal delivery of probiotics by resistance to gastric pH and on-demand disintegration.citations
- 2020Strong Metal-Adsorbate Interactions Increase the Reactivity and Decrease the Orientational Order of OH-Functionalized N-Heterocyclic Carbene Monolayerscitations
- 2020Materials for hydrogen-based energy storage – past, recent progress and future outlookcitations
- 2020Mechanically interlocked 3D multi-material micromachinescitations
- 2016Luminescence from single CdSe nanocrystals embedded in ZnO thin films using atomic layer depositioncitations
- 2016Photoemission and electron-energy-loss-spectroscopy study of BaRuO3.citations
- 2015Reverse tension /compression asymmetry of a Mg–Y–Zn alloyscitations
- 2015Plasticity analysis by synchrotron radiation in a $Mg_{97}Y_{2}Zn_{1}$ alloy with bimodal grain structure and containing LPSO phasecitations
- 2012Measurements of the T2K neutrino beam properties using the INGRID on-axis near detectorcitations
- 2011Quantification of Temperature Driven Flow in a Polymer Electrolyte Fuel Cell Using High-Resolution Neutron Radiographycitations
- 2010Polymerization of lignosulfonates by the laccase-HBT (1-hydroxybenzotriazole) system improves dispersibilitycitations
- 2009Integrated wireless neural interface based on the Utah electrode arraycitations
- 2008Oxygen diffusion in nanocrystalline yttria-stabilized zirconia: the effect of grain boundaries
- 2007System integration of the utah electrode array using a biocompatible flip chip under bump metallization schemecitations
- 2006Direct evidence of electron accumulation in the grain boundary of yttria doped nanocrystalline zirconia ceramics
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article
Quantification of Temperature Driven Flow in a Polymer Electrolyte Fuel Cell Using High-Resolution Neutron Radiography
Abstract
<jats:p>In this study, the effect of a controlled temperature gradient on water transport across a single fuel cell was quantitatively investigated using high-resolution neutron imaging. The direction of liquid water transport under isothermal and non-isothermal conditions was observed in both hydrophilic and hydrophobic diffusion media (DM). The change in distribution of liquid saturation with time revealed two different mechanisms of water transport; capillary driven flow and phase-change induced (PCI) flow, in which a water vapor concentration gradient is created by condensation at a colder location. This concentration gradient drives diffusion flow toward the colder location. A maximum liquid saturation plateau of <jats:italic>ca.</jats:italic> 30% was shown for all conditions tested, indicating a critical transition between pendular and funicular modes of liquid water storage was captured. Based on this, it is suggested that PCI-flow may be the main mode of liquid transport below this critical transition threshold, above which, capillary flow dominates. As expected, both average cell temperature and the magnitude of temperature gradient were shown to significantly affect the rate of condensation within the DM. Experimental results were compared with water saturation distribution model predictions from literature and show reasonable qualitative agreement. Finally, it was concluded that current available models significantly over predict vapor phase diffusive transport in saturated fuel cell media using a Bruggeman type model.</jats:p>