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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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | air purification / gold catalyst / solid acid / high catalytic activity / NH3 oxidation / high N2 selectivity / Au-PVP colloid / Ag catalyst / size effect / ammonia / selective / catalytic oxidaiton / N2 selectivity / selective oxidation / precious metals / acid sites / niobium oxide / catalytic oxidation / nitrogen selectivity / catalyst / gold naoparticles / acid metal oxides |
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| Outline of Research at the Start |
To solve the ammonia emission problems and improve the living quality for human beings, developing efficient catalysts with high catalytic activity and high selectivity to nitrogen at low temperatures is necessary and important.
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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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| 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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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Defective NiO as a Stabilizer for Au Single-Atom Catalysts2022
Author(s)
Chihiro Mochizuki, Yusuke Inomata, Shunsaku Yasumura, Mingyue Lin, Ayako Taketoshi, Tetsuo Honma, Norihito Sakaguchi, Masatake Haruta, Ken-ichi Shimizu, Tamao Ishida, and Toru Murayama*
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Journal Title
ACS Catalysis
Volume: 12, 6149-6158
Pages: 6149-6158
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Ultra-Low-Temperature CO Oxidation Activity of Octahedral Site Cobalt Species in Co3O4 Based Catalysts: Unravelling the Origin of the Unique Catalytic Property2019
Author(s)
Baidya T, Murayama T, Nellaiappan S, Katiyar NK, Bera P, Safonova O, Lin M, Priolkar KR, Kundu S, Srinivasa Rao B, Steiger P.
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Journal Title
The Journal of Physical Chemistry C
Volume: 123
Issue: 32
Pages: 19557-19557
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Effects of solid acidity of the support on the selective catalytic oxidation of NH3 by the niobium oxide supported precious metals catalysts2020
Author(s)
Mingyue Lin,Baoxiang An, Yohei Jikihara, Fukui Yoko, Tsuruo Nakayama,Toru Murayama, Masatake Haruta, Tamao Ishida, Sadao Yasui, Takashi Takei,Tetsuya Shishido,
Organizer
第126回触媒討論会
Related Report
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