التفاصيل البيبلوغرافية
| العنوان: |
Hydrogen and helium trapping in hcp beryllium |
| المؤلفون: |
Zimber, Nikolai, Lammer, Judith, Vladimirov, Pavel, Kothleitner, Gerald, Keast, Vicki J., Dürrschnabel, Michael, Klimenkov, Michael |
| المساهمون: |
The University of Newcastle. College of Engineering, Science & Environment, School of Information and Physical Sciences |
| بيانات النشر: |
Nature Publishing Group |
| سنة النشر: |
2023 |
| المجموعة: |
NOVA: The University of Newcastle Research Online (Australia) |
| مصطلحات موضوعية: |
hydrogen, bubbles, beryllium, fusion power plants, SDG 7, Sustainable Development Goals |
| الوصف: |
Even though hydrogen-metal surface interactions play an important role in energy technologies and metal corrosion, a thorough understanding of these interactions at the nanoscale remains elusive due to obstructive detection limits in instrumentation and the volatility of pure hydrogen. In the present paper we use analytical spectroscopy in TEM to show that hydrogen adsorbs directly at the (0001) surfaces of hexagonal helium bubbles within neutron irradiated beryllium. In addition to hydrogen, we also found Al, Si and Mg at the beryllium-bubble interfaces. The strong attraction of these elements to (0001) surfaces is underlined with ab-initio calculations. In situ TEM heating experiments reveal that hydrogen can desorb from the bubble walls at T ≥ 400 °C if the helium content is reduced by opening the bubbles. Based on our results we suggest the formation of a complex hydride consisting of up to five elements with a remarkably high decomposition temperature. These results therefore promise novel insights into metal-hydrogen interaction behavior and are invaluable for the safety of future fusion power plants. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| تدمد: |
2399-3669 |
| العلاقة: |
Communications Chemistry Vol. 6, no. 76; http://hdl.handle.net/1959.13/1488733Test; uon:52520 |
| الإتاحة: |
http://hdl.handle.net/1959.13/1488733Test |
| حقوق: |
x |
| رقم الانضمام: |
edsbas.E4BC3930 |
| قاعدة البيانات: |
BASE |
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