H2O2 photoproduction inside H2O and H2O:O2 ices at 20–140 K
We report the results of laboratory measurements of H 2 O 2 production inside thin (50 nm thickness) H 2 O and H 2 O:O 2 ice samples irradiated by 121.6 nm photons at different temperatures. In the case of H 2 O ice, H 2 O 2 is formed at the temperatures below 60 К. In the case of H 2 O:O 2 ice, H 2...
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| Veröffentlicht in: | Scientific reports 2019-08, Vol.9 (1), p.1-9, Article 11375 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We report the results of laboratory measurements of H
2
O
2
production inside thin (50 nm thickness) H
2
O and H
2
O:O
2
ice samples irradiated by 121.6 nm photons at different temperatures. In the case of H
2
O ice, H
2
O
2
is formed at the temperatures below 60 К. In the case of H
2
O:O
2
ice, H
2
O
2
is formed in the 20–140 К range. For H
2
O:O
2
= 9:1 ice, we derived H
2
O
2
photochemical quantum yield as a function of sample irradiation temperature. The obtained data can be used for evaluation of H
2
O
2
photoproduction at the surface of astrophysical water ice bodies and inside the particles of Noctilucent Clouds in the Earth’s atmosphere. |
|---|---|
| ISSN: | 2045-2322 2045-2322 |
| DOI: | 10.1038/s41598-019-47915-w |