Oxide-Supported Titanium Catalysts: Structure–Activity Relationship in Heterogeneous Catalysis, with the Choice of Support as a Key Step
The reactions of tetrakis(neopentyl)titanium, TiNp4 (1), with the surface of three solid oxides, silica, silica–alumina, and alumina, all partially dehydroxylated at 500 °C under vacuum were achieved. The resulting supported organometallic species react with dihydrogen to form the corresponding su...
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| Veröffentlicht in: | Organometallics 2020-12, Vol.39 (24), p.4608-4617 |
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| container_title | Organometallics |
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| creator | Larabi, Cherif Norsic, Sébastien Khrouz, Lhoussain Boyron, Olivier Szeto, Kai Chung Lucas, Christine Taoufik, Mostafa De Mallmann, Aimery |
| description | The reactions of tetrakis(neopentyl)titanium, TiNp4 (1), with the surface of three solid oxides, silica, silica–alumina, and alumina, all partially dehydroxylated at 500 °C under vacuum were achieved. The resulting supported organometallic species react with dihydrogen to form the corresponding supported hydrides. The preparation of supported titanium hydrides on alumina is described here in detail, and the species obtained were extensively characterized by FTIR, solid-state NMR and EPR spectroscopy, and mass-balance analysis. The supported titanium hydride species were tested in three important reactions for petrochemistry: epoxidation of 1-octene, depolymerization of Fischer–Tropsch waxes, and polymerization of ethylene. The activities of titanium hydrides supported on alumina were compared to those of their silica- and silica–alumina-supported analogues. |
| doi_str_mv | 10.1021/acs.organomet.0c00650 |
| format | Article |
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| source | Web of Science - Science Citation Index Expanded - 2020<img src="https://exlibris-pub.s3.amazonaws.com/fromwos-v2.jpg" />; American Chemical Society Journals |
| subjects | Catalysis Chemical Sciences Chemistry Chemistry, Inorganic & Nuclear Chemistry, Organic Coordination chemistry or physical chemistry Organic chemistry Physical Sciences Polymers Science & Technology Theoretical and |
| title | Oxide-Supported Titanium Catalysts: Structure–Activity Relationship in Heterogeneous Catalysis, with the Choice of Support as a Key Step |
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