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的Re氧化物催化剂，该催化剂能够高效、选择性地诱导端烯和内烯的烯烃歧化反应。以醇铝为原料，采用溶胶-凝胶法制备了比表面积高达562m^2/g、孔径分布集中在3 nm处的纳米多孔氧化铝，并用高铁酸根溶液浸渍氧化铝，然后进行焙烧。由于纳米氧化铝表面分散均匀、细小，因此在透射电子显微镜下未检测到纳米氧化铝表面的氧化Re颗粒。新型氧化铝负载Re催化剂在温和的反应条件下对1-辛烯和7-十六烯的歧化反应表现出比传统氧化铝负载Re催化剂更高的催化活性。