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| 001 | 1046550 | ||
| 005 | 20250930202057.0 | ||
| 037 | _ | _ | |a FZJ-2025-03860 |
| 100 | 1 | _ | |a Hensen, Laurin |0 P:(DE-Juel1)194360 |b 0 |e Corresponding author |
| 111 | 2 | _ | |a 76th Annual Meeting of the International Society of Electrochemistry |c Mainz |d 2025-09-07 - 2025-09-12 |w Germany |
| 245 | _ | _ | |a Measuring hydrogen diffusion, solubility, and permeability of polymers |
| 260 | _ | _ | |c 2025 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
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| 520 | _ | _ | |a The rise of the hydrogen economy requires new materials for the storage, separation and transportation of hydrogen. Hereto, polymers display an outstanding role due to their unique properties, including mechanical strength, thermal stability and chemical resistance, while their permeability to hydrogen is relevant for their applicability. However, literature data on the hydrogen permeability (which is determined by the product of solubility and diffusion) of polymers are rare. To measure these physical properties, this study advanced the electrochemical measurement of the hydrogen transport dynamics and combines this high-quality experimental data with fits of Fick's second law to describe transient pressure variations. This technique is applied to polyether ether ketone (PEEK), polypropylene (PP), polyphenylene sulfide (PPS), and Polytetrafluoroethylene (PTFE) within a temperature range of 30–80 °C. In the permeation cell designed to measure hydrogen permeation, the polymer is coated with a sputtered palladium layer, while hydrogen is detected via electrochemical oxidation. To measure the hydrogen permeation dynamics, the applied hydrogen pressure is reduced instantly to atmospheric pressure at time = 0s. Thus, the permeation current switches from one equilibrium to another, while the dynamics of the transition between these states is used to determine the diffusion coefficient and the solubility of hydrogen. The determined diffusion coefficients and solubilities are analyzed as a function of temperature to determine activation energies and enthalpies of solution. |
| 536 | _ | _ | |a 1231 - Electrochemistry for Hydrogen (POF4-123) |0 G:(DE-HGF)POF4-1231 |c POF4-123 |f POF IV |x 0 |
| 536 | _ | _ | |a iNEW2.0 - Verbundvorhaben iNEW2.0: Im Zentrum des Inkubators Nachhaltige Elektrochemische Wertschöpfungsketten (iNEW 2.0) steht die Erforschung und Entwicklung neuartiger und leistungsfähiger Elektrolyse-verfahren zur Anwendung in nachhaltigen Power-to-X (P2X) Wertschöpfungsketten. (BMBF-03SF0627A) |0 G:(DE-Juel1)BMBF-03SF0627A |c BMBF-03SF0627A |x 1 |
| 536 | _ | _ | |a HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) |0 G:(DE-Juel1)HITEC-20170406 |c HITEC-20170406 |x 2 |
| 700 | 1 | _ | |a Schalenbach, Maximilian |0 P:(DE-Juel1)179453 |b 1 |
| 700 | 1 | _ | |a Tempel, Hermann |0 P:(DE-Juel1)161208 |b 2 |
| 700 | 1 | _ | |a Eichel, Rüdiger-A. |0 P:(DE-Juel1)156123 |b 3 |
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| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Energie |l Materialien und Technologien für die Energiewende (MTET) |1 G:(DE-HGF)POF4-120 |0 G:(DE-HGF)POF4-123 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-100 |4 G:(DE-HGF)POF |v Chemische Energieträger |9 G:(DE-HGF)POF4-1231 |x 0 |
| 914 | 1 | _ | |y 2025 |
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