2021 Fiscal Year Annual 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 Institution | Tokyo Metropolitan University |
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Principal Investigator |
林 明月 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 | Au-PVP colloid / Ag catalyst / size effect / ammonia / selective / catalytic oxidaiton / N2 selectivity |
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| Outline of Annual Research Achievements |
(1) A water/ethanol soluble Au-PVP colloid was developed as the gold precursor. The prepared Au(-PVP)/Nb2O5 showed high activity for both gas-phase CO oxidation and liquid-phase furfural oxidation. This work provides a more eco-friendly preparation method of highly active Au/solid catalysts.
(2) Ag size/structure was found to play an essentail role in controlling the N2 selectivity and the type of byproduct in NH3-SCO. Ag/MnO2 with Ag particles of 2.4 nm diameter showed the highest density of Ag particles which would be favorable for the formation of N2 and H2O. This work provides a new angle in designing highly active catalysts.
(3) Ag/Al2O3 that showed high catalytic activity and high N2 selectivity for NH3-SCO was developed, and the reaction mechanism was studied in detail.
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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
Peer Reviewed / Int'l Joint Research
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