硅材料固载离子液体挂载金属催化剂应用研究进展

Progress in application of silica gel supported ionic liquids with metal complexes as catalysts

离子液体具有独特的性质,将具有高表面积的硅材料用离子液体进行改性,再挂载金属化合物,可制得集离子液体中均相催化和固体非均相催化体系于一身的新型催化剂,用于多种有机反应。这些催化剂具有高效、高选择性、离子液体用量少、产品易分离和催化剂易回收等优点,因有望用于化工过程的固定床反应器而受到关注。本文综述了2005年以来硅材料固载离子液体挂载金属催化剂的应用研究成果。

Ionic liquids have unique properties. Silica gels, being with high surface areas, were modified with ionic liquids and then were immobilized metal compounds. This could be produced a new-class catalysts, which combined the ad- vantages of homogeneous catalysis in ionic liquids with heterogeneous catalysts, and be used as effective catalysts in chemi- cal reactions. These catalysts have been attracted growing interests due to their advantages, such as excellent activity and selectiviy,minimum use of ionic liquid, easy separation of product and recovery of catalyst, more particularly, possibility of use in fixed-bed reactor. The progress since 2005 about the supported ionic liquid catalysts with metal complexes and their applications were reviewed.