2023 Fiscal Year Final Research Report
Development of alloy nanosheet catalysts using interlayers in stacked graphene oxide
| Project/Area Number |
20H02526
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 27030:Catalyst and resource chemical process-related
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| Research Institution | Doshisha University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | Ptナノシート |
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| Outline of Final Research Achievements |
Precious metals are used as catalysts for various chemical reactions. However, since precious metals are expensive, there is a need to improve their activity. In order to improve the catalytic activity of precious metals, controlling the electronic structure are being considered. On the other hand, the catalytic activity of precious metals strongly depends on the degree of coordination unsaturation of the surface atoms of the precious metal sample, so it is necessary to control the degree of coordination unsaturation of the surface atoms. In this study, we focused on nanosheets, which are nanoscale materials with a uniform degree of coordination unsaturation. We succeeded in making nanosheets of Pt, Rh, Pt-based alloys, etc. The obtained nanosheet samples also showed higher catalytic activity compared to spherical nanoparticles.
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| Free Research Field |
触媒化学
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| Academic Significance and Societal Importance of the Research Achievements |
化石資源に依存した現行のエネルギー社会から，水素などを利用する新しいエネルギー社会への移行が求められ，その際に触媒が果たす役割は大きい．多くの化学反応で貴金属が触媒活性成分として利用されるが，貴金属は埋蔵量が少なく，また埋蔵地域も限られるため，貴金属触媒の触媒作用を正しく理解し，そのうえで貴金属の触媒活性向上が求められる．本研究では，貴金属の触媒作用を正しく理解するために有効な貴金属系ナノシートの調製に成功した．これらナノシートの触媒作用を検討することで，表面原子の配位不飽和度が関与しない触媒作用を評価できる．
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