001032270 001__ 1032270
001032270 005__ 20241209210500.0
001032270 0247_ $$2datacite_doi$$a10.34734/FZJ-2024-06109
001032270 0247_ $$2URN$$aurn:nbn:de:0001-20241209143003210-7245613-9
001032270 020__ $$a978-3-95806-779-0
001032270 037__ $$aFZJ-2024-06109
001032270 1001_ $$0P:(DE-Juel1)176327$$aPark, Seongeun$$b0$$eCorresponding author$$ufzj
001032270 245__ $$aDevelopment of Iridium-based Nanostructures for Oxygen Evolution Reaction in PEM Water Electrolysis$$f- 2024-05-22
001032270 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek, Verlag$$c2024
001032270 300__ $$a135
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001032270 3367_ $$0PUB:(DE-HGF)11$$2PUB:(DE-HGF)$$aDissertation / PhD Thesis$$bphd$$mphd$$s1732616699_17124
001032270 3367_ $$2DRIVER$$adoctoralThesis
001032270 4900_ $$aReihe Energie & Umwelt / Energy & Environment$$v642
001032270 502__ $$aDissertation, RWTH Aachen University, 2024$$bDissertation$$cRWTH Aachen University$$d2024
001032270 520__ $$aHydrogen is an important energy carrier in the coming future for sustainable energy systems. In particular, "green hydrogen" produced by water electrolysis is considered as an ultimate technology as it can greatly contribute to net-zero CO2 emission. Accordingly, many green hydrogen targets and policies are being set around the world. The EU has announced plans to install 40 GW of green hydrogen electrolysis capacity in Europe by 2030, and Germany plans to produce up to 14 TWh of green hydrogen by 2030.1,2 Polymer electrolyte membrane (PEM) water electrolysis is the most promising system in the field of water electrolyzers because it offers advantages such as a wide operating range, high current density, and compact system design. It is expected to contribute to the production of green hydrogen, but unfortunately, the cost still needs to be reduced tremendously. Electrocatalysts are the most important part to focus on as they are based on platinum group metals (PGMs) and have the potential to reduce the high cost. In particular, iridium, the electrocatalyst for the anode side, is one of the scarcest elements, and its price is continuously increasing with significant fluctuations due to demand and limited production, which may be a bottleneck for large-scale application of PEM water electrolyzers. In this work, the electrocatalysts for oxygen evolution reactions for PEM water electrolysis were explored. Novel nanostructures were synthesized and evaluated as electrocatalysts under acidic conditions. Since iridium is the only element that has reasonable electrocatalytic activity and stability, they are based on iridium as the main element and the research is focused on the better utilization of iridium in electrocatalysts from the structure point of view. The approach was followed by using transition metals to develop the catalyst structure, considering realistic conditions such as material cost. The electrocatalysts were analyzed and studied before and after electrochemical measurements.
001032270 536__ $$0G:(DE-HGF)POF4-1231$$a1231 - Electrochemistry for Hydrogen (POF4-123)$$cPOF4-123$$fPOF IV$$x0
001032270 8564_ $$uhttps://juser.fz-juelich.de/record/1032270/files/Energie_Umwelt_642.pdf$$yOpenAccess
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001032270 9141_ $$y2024
001032270 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)176327$$aForschungszentrum Jülich$$b0$$kFZJ
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001032270 920__ $$lyes
001032270 9201_ $$0I:(DE-Juel1)IET-4-20191129$$kIET-4$$lElektrochemische Verfahrenstechnik$$x0
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