Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies
Solid oxide cell technologies play a pivotal role in the realm of renewable energy storage, guiding us through the journey toward decarbonization. Understanding how electrocatalytic materials behave under high‐temperature conditions is an absolute necessity to push these technologies forward. Operan...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2024-04-01
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| Series: | Small Structures |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/sstr.202300414 |
| _version_ | 1797219304388689920 |
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| author | Christoph W. Thurner Leander Haug Daniel Winkler Victoria Zarth Johannes Glätzle Kevin Ploner Jonathan Schäfer Simon Penner Bernhard Klötzer |
| author_facet | Christoph W. Thurner Leander Haug Daniel Winkler Victoria Zarth Johannes Glätzle Kevin Ploner Jonathan Schäfer Simon Penner Bernhard Klötzer |
| author_sort | Christoph W. Thurner |
| collection | DOAJ |
| description | Solid oxide cell technologies play a pivotal role in the realm of renewable energy storage, guiding us through the journey toward decarbonization. Understanding how electrocatalytic materials behave under high‐temperature conditions is an absolute necessity to push these technologies forward. Operando spectroscopic investigations, such as near‐ambient pressure X‐ray photoelectron spectroscopy (NAP–XPS), offer insights into the chemical nature of active working electrodes, including the dynamic response of redox states and adsorbate chemistry to changing electrochemical conditions. Mixed ceramic–metallic electrodes exhibit a limited region with electrochemically active triple‐phase‐boundary (TPB) sites, which are located close to the electrolyte/electrode interface. To monitor this specific region spectroscopically, metallic (Ni) and bimetallic (NiCu) network‐like structures are synthesized on a yttria‐stabilized zirconia electrolyte and the electrochemical state and performance are studied by using operando NAP–XPS. In the experiments, the surface oxidation states under different polarizations are revealed, the gas composition dependent Nernst shift is confirmed, electrocatalytic activities are unraveled, and hydrogen evolution is correlated with the applied potential. The findings demonstrate, the effectiveness of thin‐film model cells with spectroscopically accessible TPB regions for probing interfacial states and electrochemical processes. The obtained fundamental knowledge can provide valuable insights for the advancement of renewable energy storage technologies. |
| first_indexed | 2024-04-24T12:31:31Z |
| format | Article |
| id | doaj.art-35aab3bfcb4e444babf5cdd9bc788adf |
| institution | Directory Open Access Journal |
| issn | 2688-4062 |
| language | English |
| last_indexed | 2024-04-24T12:31:31Z |
| publishDate | 2024-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Structures |
| spelling | doaj.art-35aab3bfcb4e444babf5cdd9bc788adf2024-04-08T02:35:51ZengWiley-VCHSmall Structures2688-40622024-04-0154n/an/a10.1002/sstr.202300414Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic StudiesChristoph W. Thurner0Leander Haug1Daniel Winkler2Victoria Zarth3Johannes Glätzle4Kevin Ploner5Jonathan Schäfer6Simon Penner7Bernhard Klötzer8Institute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaR&D Department Ceratizit Austria GmbH Metallwerk-Plansee-Strasse 71 6600 Reutte AustriaAnalytical Department Plansee SE Metallwerk-Plansee-Strasse 71 6600 Reutte AustriaR&D Department Ceratizit Austria GmbH Metallwerk-Plansee-Strasse 71 6600 Reutte AustriaInstitute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaInstitute of Physical Chemistry University of Innsbruck Innrain 52c 6020 Innsbruck AustriaSolid oxide cell technologies play a pivotal role in the realm of renewable energy storage, guiding us through the journey toward decarbonization. Understanding how electrocatalytic materials behave under high‐temperature conditions is an absolute necessity to push these technologies forward. Operando spectroscopic investigations, such as near‐ambient pressure X‐ray photoelectron spectroscopy (NAP–XPS), offer insights into the chemical nature of active working electrodes, including the dynamic response of redox states and adsorbate chemistry to changing electrochemical conditions. Mixed ceramic–metallic electrodes exhibit a limited region with electrochemically active triple‐phase‐boundary (TPB) sites, which are located close to the electrolyte/electrode interface. To monitor this specific region spectroscopically, metallic (Ni) and bimetallic (NiCu) network‐like structures are synthesized on a yttria‐stabilized zirconia electrolyte and the electrochemical state and performance are studied by using operando NAP–XPS. In the experiments, the surface oxidation states under different polarizations are revealed, the gas composition dependent Nernst shift is confirmed, electrocatalytic activities are unraveled, and hydrogen evolution is correlated with the applied potential. The findings demonstrate, the effectiveness of thin‐film model cells with spectroscopically accessible TPB regions for probing interfacial states and electrochemical processes. The obtained fundamental knowledge can provide valuable insights for the advancement of renewable energy storage technologies.https://doi.org/10.1002/sstr.202300414model electrodesnear-ambient pressure X-ray photoelectron spectroscopy (NAP–XPS)NiCusolid oxide cellsthin-films |
| spellingShingle | Christoph W. Thurner Leander Haug Daniel Winkler Victoria Zarth Johannes Glätzle Kevin Ploner Jonathan Schäfer Simon Penner Bernhard Klötzer Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies Small Structures model electrodes near-ambient pressure X-ray photoelectron spectroscopy (NAP–XPS) NiCu solid oxide cells thin-films |
| title | Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies |
| title_full | Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies |
| title_fullStr | Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies |
| title_full_unstemmed | Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies |
| title_short | Preparation of Ni and NiCu/Yttria‐Stabilized Zirconia Model Electrodes with Optimized Triple‐Phase Boundary Geometry for Fundamental Operando Spectroscopic Studies |
| title_sort | preparation of ni and nicu yttria stabilized zirconia model electrodes with optimized triple phase boundary geometry for fundamental operando spectroscopic studies |
| topic | model electrodes near-ambient pressure X-ray photoelectron spectroscopy (NAP–XPS) NiCu solid oxide cells thin-films |
| url | https://doi.org/10.1002/sstr.202300414 |
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