| 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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Cherevko, Serhiy
Forschungszentrum Jülich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Operando Fe dissolution in Fe–N–C electrocatalysts during acidic oxygen reduction: Impact of local pH changecitations
- 2023Isopropanol electro-oxidation on Pt-Ru-Ircitations
- 2022Graphene-derived carbon support boosts proton exchange membrane fuel cell catalyst stabilitycitations
- 2022Atomistic Insights into Activation and Degradation of La0.6Sr0.4CoO3-δElectrocatalysts under Oxygen Evolution Conditionscitations
- 2022Catalyst Dissolution Analysis in PEM Water Electrolyzers during Intermittent Operationcitations
- 2022Hydrogen evolution in alkaline medium on intratube and surface decorated PtRu catalystcitations
- 2022Atomistic Insights into Activation and Degradation of La0.6Sr0.4CoO3−δ Electrocatalysts under Oxygen Evolution Conditionscitations
- 2022High-throughput exploration of activity and stability for identifying photoelectrochemical water splitting materialscitations
- 2021Electrocatalytic oxidation of 2-propanol on PtxIr100-x bifunctional electrocatalysts - aA thin-film materials library studycitations
- 2020Evolution of the PtNi Bimetallic Alloy Fuel Cell Catalyst under Simulated Operational Conditionscitations
- 2020Insight into the Mechanisms of High Activity and Stability of Iridium Supported on Antimony-Doped Tin Oxide Aerogel for Anodes of Proton Exchange Membrane Water Electrolyzerscitations
- 2020Fabrication of a Robust PEM Water Electrolyzer Based on Non‐Noble Metal Cathode Catalyst: [Mo<sub>3</sub>S<sub>13</sub>]<sup>2−</sup> Clusters Anchored to N‐Doped Carbon Nanotubescitations
- 2020The Dissolution Dilemma for Low Pt Loading Polymer Electrolyte Membrane Fuel Cell Catalystscitations
- 2020Fabrication of a Robust PEM Water Electrolyzer Based on Non‐Noble Metal Cathode Catalyst: [Mo3S13]2− Clusters Anchored to N‐Doped Carbon Nanotubes
- 2020Improved Hydrogen Oxidation Reaction Activity and Stability of Buried Metal-Oxide Electrocatalyst Interfacescitations
- 2020Improved Hydrogen Oxidation Reaction Activity and Stability of Buried Metal-Oxide Electrocatalyst Interfacescitations
- 2018Using Instability of a Non-stoichiometric Mixed Oxide Oxygen Evolution Catalyst As a Tool to Improve Its Electrocatalytic Performancecitations
- 2018The stability number as a metric for electrocatalyst stability benchmarkingcitations
- 2017Electrocatalytic synthesis of hydrogen peroxide on Au-Pd nanoparticles: from fundamentals to continuous productioncitations
- 2016Activity and stability of electrochemically and thermally treated iridium for the oxygen evolution reactioncitations
- 2016Oxygen and hydrogen evolution reactions on Ru, RuO2, Ir, and IrO2 thin film electrodes in acidic and alkaline electrolytes: A comparative study on activity and stabilitycitations
- 2014Hierarchical nanoporous films obtained by surface cracking on Cu-Au and ethanethiol on Au(001)citations
Places of action
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article
The Dissolution Dilemma for Low Pt Loading Polymer Electrolyte Membrane Fuel Cell Catalysts
Abstract
<p>Cost and lifetime currently hinder widespread commercialization of polymer electrolyte membrane fuel cells (PEMFCs). Reduced electrode Pt loadings lower costs; however, the impact of metal loading (on the support) and its relation to degradation (lifetime) remain unclear. The limited research on these parameters stems from synthetic difficulties and lack of in situ analytics. This study addresses these challenges by synthesizing 2D and 3D Pt/C model catalyst systems via two precise routes and systematically varying the loading. Pt dissolution was monitored using on-line inductively coupled plasma mass spectrometry (on-line-ICP-MS), while X-ray spectroscopy techniques were applied to establish the oxidation states of Pt in correlation with metal loading. Dissolution trends emerge which can be explained by three particle proximity dependent mechanisms: (1) shifts in the Nernst dissolution potential, (2) redeposition, and (3) alteration of Pt oxidation states. These results identify engineering limitations, which should be considered by researchers in fuel cell development and related fields. </p>