| People | Locations | Statistics |
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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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Brightman, Edward
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2018Localised electrochemical impedance measurements of a polymer electrolyte fuel cell using a reference electrode array to give cathode-specific measurements and examine membrane hydration dynamicscitations
- 2017Degradation study by start-up/shut-down cycling of superhydrophobic electrosprayed catalyst layers using a localized reference electrode techniquecitations
- 2016Study of superhydrophobic electrosprayed catalyst layers using a localized reference electrode techniquecitations
- 2015Reduction dynamics of doped ceria, nickel oxide, and cermet composites probed using in situ Raman spectroscopycitations
- 2013In situ measurement of active catalyst surface area in fuel cell stackscitations
- 2011The effect of current density on H2S-poisoning of nickel-based solid oxide fuel cell anodescitations
- 2009The development of phenylethylene dendrons for blue phosphorescent emitterscitations
Places of action
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article
In situ measurement of active catalyst surface area in fuel cell stacks
Abstract
<p>Measurement of electrochemical surface area (ECSA) of fuel cell electrodes is a key diagnostic of performance and gives a useful parameter for monitoring degradation and state of health in polymer electrolyte membrane fuel cells (PEMFCs). However, conventional methods for determining ECSA require potentiostatic control of the cell, which is impractical in a fuel cell stack. Here we demonstrate for the first time the practical application of a galvanostatic technique that enables in situ monitoring of ECSA in each cell throughout the lifetime of a stack. The concept is demonstrated at single cell level using both H adsorption and CO stripping, and the H adsorption (cathodic current) method is extended to stack testing. The undesirable effects of H <sub>2</sub> crossover on the measurement may be minimised by appropriate selection of current density and by working with dilute H<sub>2</sub> on the anode electrode. Good agreement is achieved with ECSA values determined using conventional single cell voltammetry across a range of MEA designs. The technique is straightforward to implement and provides an invaluable tool for state of health monitoring during PEMFC stack lifetime studies.<br/></p>