Nitrogen oxidation on a plasma-exposed surface
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866916735026724864 |
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| author | Vervloedt, S. C. L. von Keudell, A. |
| author_facet | Vervloedt, S. C. L. von Keudell, A. |
| contents | The elementary processes during the fixation of nitrogen by plasma catalysis are studied in a low-pressure plasma experiment using N$_2$ and O$_2$ as source gases. The formation of surface groups on an iron oxide foil are monitored with infrared reflection spectroscopy. Surface nitrates (NO$_3$) are formed when the samples are exposed to a 1:1 N$_2$:O$_2$ plasma, as well as O$_3$, NO$_2$, NO, and N$_2$O in the gas phase. During plasma exposure, bidentate nitrates are formed. The structure of this surface group changes after plasma exposure. It is postulated that adsorption plasma created NO$_x$(g) yields the formation of these NO$_3$ species. This constitutes an intermediate step for NO$_x$ formation by plasma catalysis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08225 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nitrogen oxidation on a plasma-exposed surface Vervloedt, S. C. L. von Keudell, A. Plasma Physics The elementary processes during the fixation of nitrogen by plasma catalysis are studied in a low-pressure plasma experiment using N$_2$ and O$_2$ as source gases. The formation of surface groups on an iron oxide foil are monitored with infrared reflection spectroscopy. Surface nitrates (NO$_3$) are formed when the samples are exposed to a 1:1 N$_2$:O$_2$ plasma, as well as O$_3$, NO$_2$, NO, and N$_2$O in the gas phase. During plasma exposure, bidentate nitrates are formed. The structure of this surface group changes after plasma exposure. It is postulated that adsorption plasma created NO$_x$(g) yields the formation of these NO$_3$ species. This constitutes an intermediate step for NO$_x$ formation by plasma catalysis. |
| title | Nitrogen oxidation on a plasma-exposed surface |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2505.08225 |