目前,在各类催化反应中,多相催化体系占有主要地位,多相催化反应使用的固体催化剂大多数是由活性组分、助催化剂及载体三部分组成。活性组分对催化剂的活性起着决定性作用,但对载体在催化剂制备中的作用长期以来是认识不清的。载体用于催化剂制备上,原先的目的是为了节约贵重材料的消耗,而使用强度大的载体还可以使制成 At present, the heterogeneous catalytic system occupies a major position in all kinds of catalytic reactions. Most of the solid catalysts used in the heterogeneous catalytic reaction consist of three components: an active component, a cocatalyst and a carrier. The active ingredient plays a decisive role in the activity of the catalyst, but the role of the support in the preparation of the catalyst has long been unknown. The carrier is used in the preparation of the catalyst, the original purpose is to save the expensive material consumption, and the use of a strong carrier can also make