Silver Cluster Catalysts for Green Organic Synthesis
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- Shimizu Ken-ichi
- Catalysis Research Center, Hokkaido University
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- Satsuma Atsushi
- Dept. of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
Bibliographic Information
- Other Title
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- 銀クラスター触媒によるグリーン有機合成
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Abstract
Development of platinum-group-metal (PGM)-free catalysts for green chemical synthesis is an important topic in synthetic catalysis, because PGM will soon be in short supply in the near future. Our group has paid attention to the catalytic functions of Ag clusters. Here, we summarize our recent work on size- and support-specific catalysis of Ag clusters for green organic synthesis. Ag clusters supported on Al2O3 act as effective heterogeneous catalysts for (1) oxidant-free dehydrogenation of alcohols to carbonyl compounds, (2) coupling of alcohols with amines to form amides and H2, (3) N-alkylation of anilines with alcohols, (4) C–C cross-coupling reaction of alcohols, (5) selective hydrogenation of nitroaromatics, and (6) direct synthesis of N-substituted anilines from nitroaromatics and alcohols. To establish a catalyst design concept, effects of Ag particle size and acid-base character of support oxides are investigated. The structure-activity relationships for all reactions show similar tendencies; metallic Ag clusters with smaller size and acid-base bifunctional nature of the support oxide are preferable. We propose that cooperation between coordinatively unsaturated Ag sites of Ag clusters and acid-base pair sites at the metal-support interface is a key concept for the design of Ag cluster catalysts for the above reactions.
Journal
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- Journal of the Japan Petroleum Institute
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Journal of the Japan Petroleum Institute 54 (6), 347-360, 2011
The Japan Petroleum Institute
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Details 詳細情報について
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- CRID
- 1390001205188633984
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- NII Article ID
- 10030180479
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- NII Book ID
- AA11590615
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- COI
- 1:CAS:528:DC%2BC3MXhsVGqsbvI
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- ISSN
- 1349273X
- 13468804
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- HANDLE
- 2115/50807
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- NDL BIB ID
- 11291560
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed