2021 Fiscal Year Final Research Report
Developing efficient catalysts for elimination of ammonia at room temperature for air quality improvement
| Project/Area Number |
19K15363
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 27030:Catalyst and resource chemical process-related
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
LIN MINGYUE 東京都立大学, 都市環境科学研究科, 特任助教 (30813357)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | air purification / gold catalyst / solid acid / high catalytic activity / NH3 oxidation / high catalytic activity / high N2 selectivity |
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| Outline of Final Research Achievements |
Highly active Au/solid catalysts were successfully developed. 100% catalytic activity for CO oxidation at room temperature was achieved over Au/Nb2O5 and Au/Ta2O5 catalysts. Reaction temperature for selective catalytic oxidation of NH3 was successfully decreased to room temperature and meanwhile the N2 selectivity was increased to more than 90% over Au/Nb2O5. More importantly, the detailed reaction mechanisms were investigated and guided the design and synthesis of more excellent catalysts.The research results offer great scopes for both basic science and applications related to air quality improvement.
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| Free Research Field |
Environmental Catalysis
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| Academic Significance and Societal Importance of the Research Achievements |
アンモニアは特有の強い刺激臭を有することで知られ、人間の健康と環境に悪影響を及ぼす。 国連の持続可能な開発目標（SDGs）の目標6（きれいな水と衛生）と目標11（持続可能な都市とコミュニティ）の達成に適した都市生活の質を向上させるために、室内の空気浄化の需要がより一層高まっている。
我々の研究成果は、NH3-SCOの反応温度を室温まで下げ、その一方でN2選択性を90％以上に上げることができた。これは科学的に重要であるだけでなく、低エネルギー消費で安全性の高い空気浄化システム開発に技術革新をもたらすことができる。これは、将来的に健全な社会システムを構築する上で大いに貢献できる。
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