| Budget Amount *help |
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2001: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2000: ¥2,900,000 (Direct Cost: ¥2,900,000)
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| Research Abstract |
In the present study, first of all, the preparation method was established and then as-prepared catalysts were tested for industrial use. In the first year, in order to establish the selective deposition technique onto the support particles, the research project on the selective deposition of metallic nanoparticles, such as Ru, Rh, Pd, Ir, and Pt from, its solution was investigated. Namely, first of all, target complexes of metal, such as Ru, Rh, Pd, Ir, and Pt, was prepared in the solution phase under the precise control of conditions, mainly pH, in order to form their oxide or hydroxide selectively on surfaces of the support particles. In the next, noble metal hydroxide was selectively generated on the solid surfaces by dispersing and aging support powders, such as monodispersed particles of titania, hematite, and silica. Finally, metallic noble nanoparticles were formed by the hydrogen reduction. In the second year, based on the results obtained in the first year, application of noble nanoparticles as a catalyst was mainly investigated. First of all, the activity of hydrogenation of 1-octent to octane was investigated. As-prepared noble nanoparticulate catalysts were compared with a conventional catalyst in this regard. From this point of view, our catalyst exhibited remarkably high activity for the hydrogenation. Hereafter, the selectivity of the catalysts was tested. Taking it into the consideration that nonporous support powders were used in the present study, the hydrogenation of benzene to cyclohexene was tested as an example of successive hydrogenation reaction. Finally, CO hydrogenation to form organic compounds was investigated over the noble nanoparticulate catalysts prepared by the present method.
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