| Autor: |
Yasuo Miki, Kosaku Honna, Nobuyuki Matsubayashi, Hiromichi Shimada, Yoshiki Iwata, Yasuhiro Araki |
| Rok vydání: |
1999 |
| Předmět: |
|
| DOI: |
10.1016/s0167-2991(99)80394-2 |
| Popis: |
The present paper introduced the preparation and characterization of a highly active unsupported MoS 2 catalyst for hydrogenation of aromatic rings. In the present method, ammonium-tetrathiomolybdate was decomposed in an autoclave under water and a high pressure of H 2 . The high hydrogenation activity of the catalyst was attributed to very low stacking of MoS 2 layers with much curvature that was confirmed by transmission electron microscopic observation, low (002) reflection peak intensity by X-ray diffraction, and other spectroscopic techniques. The surface area of the freshly prepared catalyst was 250 m 2 /g, but significantly reduced after the reaction at a high temperature. The hydrogenation activity of the present catalyst was further enhanced by the addition of a Ni promoter and exceeded that of oil-soluble MoDTC in the reaction of tetralin. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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