镁基水滑石催化材料的研究进展

Research progress of catalytic materials based on Mg-based layered double hydroxides

我国盐湖镁资源丰富,合理利用镁资源制备高性能、高附加值的功能性材料,是镁资源可持续性开发与利用的重要导向标。镁基水滑石是指层板结构包含镁的二元、三元或多元水滑石,具有层板金属元素呈原子级分散、层板组成比例可调、插层阴离子可交换、结构拓扑转变以及记忆效应等结构特点,其在现代石油化工、煤化工、精细化工以及环境净化等领域具有广阔的应用前景。本文重点综述近几年基于镁基水滑石催化材料的研究进展,并总结其结构调控规律,为后续镁基水滑石催化材料的应用提供借鉴。

Salt lakes are well developed in China,which possess rich magnesium resources.The preparation of magnesium based functional materials with high-performance and high-value chemicals is an effective means to realize the sustainable development of magnesium resources in salt lake.Magnesium based layered double hydroxides(LDHs)is an important type of magnesium functional material.By virtue of the unique structural characteristics(e.g.,tunability of layer metal ions and interlayer guest anions,and structure topological transformation),magnesium based LDHs have shown potential applications in petroleum,coal,fine chemistry and environmental pollution fields as precursors or supports.This article focuses on reviewing the research progress of magnesium-based hydrotalcite catalytic materials in recent years,and summarizes its structural regulation rules,so as to provide reference for the subsequent application of magnesium-based hydrotalcite catalytic materials.