Nanosecond and microsecond-pulsed plasma-in-liquid treated copper oxide surfaces
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912372937981952 |
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| author | Pottkämper, P. Unteregge, N. Weller, S. von Keudell, A. |
| author_facet | Pottkämper, P. Unteregge, N. Weller, S. von Keudell, A. |
| contents | Nanosecond and microsecond plasma-in liquid systems are explored to oxidize or regenerate a copper oxide surface in situ to serve as a catalyst for electrochemical CO$_2$ conversion. The plasma excitation generates H$_2$O$_2$ in the liquid, which induces the dissolution of Cu into Cu(OH)$_2$ and the recrystallization into Cu$_2$O nanocubes at the interface. The plasma performance of the two excitation schemes is analyzed, showing that the H$_2$O$_2$ production of nanosecond plasma is more efficient than of microsecond plasmas. The nature of the Cu$_2$O nanocubes is evaluated using electron microscopy and electrochemical characterization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08003 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nanosecond and microsecond-pulsed plasma-in-liquid treated copper oxide surfaces Pottkämper, P. Unteregge, N. Weller, S. von Keudell, A. Plasma Physics Nanosecond and microsecond plasma-in liquid systems are explored to oxidize or regenerate a copper oxide surface in situ to serve as a catalyst for electrochemical CO$_2$ conversion. The plasma excitation generates H$_2$O$_2$ in the liquid, which induces the dissolution of Cu into Cu(OH)$_2$ and the recrystallization into Cu$_2$O nanocubes at the interface. The plasma performance of the two excitation schemes is analyzed, showing that the H$_2$O$_2$ production of nanosecond plasma is more efficient than of microsecond plasmas. The nature of the Cu$_2$O nanocubes is evaluated using electron microscopy and electrochemical characterization. |
| title | Nanosecond and microsecond-pulsed plasma-in-liquid treated copper oxide surfaces |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2505.08003 |