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Production rates and destruction frequencies of ammonia in inductively coupled <scp>H<sub>2</sub>O</scp>/<scp>N<sub>2</sub></scp> and <scp>H<sub>2</sub></scp>/<scp>N<sub>2</sub></scp> plasmas
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- Jin Takahashi
- Division of Applied Quantum Science and Engineering Hokkaido University Sapporo Japan
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- Koichi Sasaki
- Division of Applied Quantum Science and Engineering Hokkaido University Sapporo Japan
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Description
<jats:title>Abstract</jats:title><jats:p>We compared the production rates and the destruction frequencies of ammonia in inductively coupled H<jats:sub>2</jats:sub>O/N<jats:sub>2</jats:sub> and H<jats:sub>2</jats:sub>/N<jats:sub>2</jats:sub> plasmas. We observed that the production rates of ammonia ranged between 4 and 7 μmol/s both in the H<jats:sub>2</jats:sub>O/N<jats:sub>2</jats:sub> and H<jats:sub>2</jats:sub>/N<jats:sub>2</jats:sub> plasmas generated at rf powers between 100 and 160 W, corresponding to the energy cost of 23–25 mol/MJ. Almost the same production rates suggest the usefulness of H<jats:sub>2</jats:sub>O as the resource for hydrogenation of atomic nitrogen adsorbed on surfaces. On the other hand, the destruction frequency was 2–4 times higher in the H<jats:sub>2</jats:sub>O/N<jats:sub>2</jats:sub> than H<jats:sub>2</jats:sub>/N<jats:sub>2</jats:sub> plasmas. Although the H<jats:sub>2</jats:sub>O/N<jats:sub>2</jats:sub> plasma has a drawback in the destruction frequency, the present work shows its potential for the direct synthesis of ammonia from water with skipping the production of hydrogen.</jats:p>
Journal
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- Contributions to Plasma Physics
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Contributions to Plasma Physics 64 (3), 2023-12-28
Wiley
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Details 詳細情報について
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- CRID
- 1360584340716943104
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- ISSN
- 15213986
- 08631042
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- Article Type
- journal article
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- Data Source
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- Crossref
- KAKEN
- OpenAIRE