Intermetallic Compound Nanoparticles Dispersed on the Surface of Oxide Support as Active and Selective Catalysts
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- Komatsu Takayuki
- Department of Chemistry and Materials Science, Tokyo Institute of Technology
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- Furukawa Shinya
- Department of Chemistry, Tokyo Institute of Technology
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Preparation of nanoparticles of intermetallic compounds and their application to various catalytic reactions are summarized. On the surface of silica support, single-phase nanoparticles of intermetallics with various combinations of elements were obtained by co-impregnation and/or successive impregnation procedures. On alumina support, its strong interaction with metal species requires another preparation procedure, liquid-phase reduction, to obtain intermetallic nanoparticles with high phase purity. Most of the particles formed on both supports had diameters of 3∼20 nm. Thus prepared intermetallic nanoparticles were used as catalysts for various reactions such as H2-D2 equilibration, selective hydrogenation, dehydrogenation, oxidation and isomerization. The catalytic activity and selectivity of nanoparticles differed from each other depending on the combination and composition of two elements. In some cases, the intermetallic catalysts gave much higher activity and/or selectivity than their component monometallic catalysts. The unique catalytic properties of intermetallic compounds were discussed in terms of the electronic and geometric factors compared with pure metals.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 56 (4), 460-467, 2015
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204254003328
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- NII論文ID
- 40020413679
- 130005129269
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 026286567
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
- KAKEN
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- 使用不可