焙烧水滑石酸碱双功能催化剂及反应特点

Calcined hydrotalcite acid-base dual-function catalyst and its reaction characteristics

焙烧水滑石是水滑石类物质受热分解形成的复合氧化物催化剂,具有层板结构和不同种类的酸和碱位点,可以通过改变层板金属阳离子、层间阴离子、负载其他金属改变催化剂的酸碱位点,在羟醛缩合、羰基化、加成、烷基化、酯化等多种反应体系中均表现出较好的催化性能。对近年来具有酸碱双功能的焙烧水滑石催化剂体系、反应特点等方面的研究进展进行归纳和评述,并对焙烧水滑石催化剂的应用前景以及进一步的研究工作进行展望。

Calcined hydrotalcite is a composite oxide formed by the thermal decomposition of hydrotalcite materials.It has a layered structure and different types of acid and base sites.The acid and base sites of the catalyst can be changed by changing the layer metal cations,interlayer anions,and loading other metals.Calcined hydrotalcite show good catalytic performance in various reaction systems,such as aldol condensation,carbonylation,addition,alkylation,and esterification.This article mainly summarizes the calcined hydrotalcite catalyst system and reaction system with acid-base dual functions in recent years,and prospects the development trend of calcined hydrotalcite catalyst.