THE DEVELOPMENT OF NANOPOROUS ALUMINA-SUPPORTED RHENIUM OXIDE CATALYST FOR OLEFIN METATHESIS

纳米孔氧化铝负载氧化铼烯烃复分解催化剂的研制

• 批准号: 11650805
• 负责人: ONAKA Makoto
• 金额: $ 2.3万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650805/
• 关键词: nanoporous alumina; rhenium oxide; olefin metathesis; heterogeneous catalysis; メタセシス; メソ多孔性; ゾルーゲル反応; オレフィン; α、ωージオレフィン; 分子内メタセシス反応; 大環状オレフィン; メソ多孔体シリカ

We developed a nanoporous alumina-supported rhenium oxide catalyst which is able to induce olefin metathesis of terminal and internal olefins in highly efficient and selective ways. We prepared nanoporous alumina which has a high specific surface area of 562 m^2/g and a narrow pore-size distribution centered at 3 nm using aluminum alkoxide through a sol-gel process, and impregnated the alumina with a perrhenate solution, followed by calcination. Since rhenium oxide was homogeneously and finely dispersed on the surface of the nanoporous alumina, no particles of rhenium oxide on the nanoporous alumina were detected by transmission electron microscopy. The new alumina-supported rhenium catalyst shows much higher catalytic activity for metathesis of 1-octene and 7-hexadecene under mild reaction conditions than conventional alumina-supported rhenium catalysts.

我们开发了一种纳米多孔氧化铝负载氧化铼催化剂，该催化剂能够高效、选择性地诱导末端烯烃和内部烯烃的复分解。采用溶胶-凝胶法制备了比表面积高达562 m^2/g、孔径分布以3nm为中心的窄孔氧化铝，并将其浸渍在过酸盐溶液中，然后煅烧。由于氧化铼在纳米多孔氧化铝表面分布均匀，透射电镜未检测到氧化铼颗粒。在温和反应条件下，新型铝负载铼催化剂对1-辛烯和7-十六烯的催化活性明显高于传统铝负载铼催化剂。