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  4. Structural aspects of oxygen evolution reaction catalyst support materials: Identifying the most important factors for catalytic performance
 
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March 2025
Journal Article
Title

Structural aspects of oxygen evolution reaction catalyst support materials: Identifying the most important factors for catalytic performance

Abstract
Proton exchange membrane water electrolyzers have emerged as promising energy conversion and storage systems in the global pursuit of climate goals. However, in order to have a broad market ramp-up for this technology, the catalyst materials especially for the rate determining reaction, the oxygen evolution reaction (OER), need to be optimized to reduce the amount of critical raw materials. In this work, we investigated various antimony doped tin oxides (ATO) structures to identify the optimal configuration that maximizes support functionality. Through systematic physical as well as electrochemical investigations, the results of this work indicate that specific ATO structures exhibit superior performance and provide enhanced conductivity and activity for OER catalysts. This research highlights the importance of tailoring the ATO structure to achieve optimal support characteristics that ultimately contribute to the overall efficiency and durability of the catalyst system.
Author(s)
Maletzko, Annabelle  orcid-logo
Fraunhofer-Institut für Chemische Technologie ICT  
Kintzel, Birgit  
Fraunhofer-Institut für Chemische Technologie ICT  
Bornet, Aline
University of Bern
Arenz, Matthias
University of Bern
Melke, Julia  
Fraunhofer-Institut für Chemische Technologie ICT  
Journal
International journal of hydrogen energy  
Open Access
File(s)
Download (6.62 MB)
Rights
CC BY 4.0: Creative Commons Attribution
DOI
10.1016/j.ijhydene.2025.02.446
10.24406/publica-4377
Additional full text version
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Language
English
Fraunhofer-Institut für Chemische Technologie ICT  
Keyword(s)
  • ATO

  • Electrocatalyst

  • Hydrogen

  • OER

  • PEM electrolyzer

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