Progress in the Preparation and Catalytic Performance Research of Encapsulated Polyoxometalate-based POMs@MOFs Materials

Abstract

The composition, structure and size of the polyoxometalates are easy to be controlled in their synthetic process, and they have good electronic storage and redox capabilities. They are favored by chemists due to their broad application prospects in the development of clean, green and environmentally efficient catalysts. Encapsulating polyoxometalates into metal-organic framework materials can solve some problems such as deactivation due to agglomeration during the catalytic reaction process, difficulty in catalysts recycling in homogeneous system, and their low specific surface area. In this paper, the preparation methods of polyoxometalate-based metal-organic framework materials, namely, in-situ synthesis, immersion synthesis and mechanical grinding synthesis, are summarized, and the advantages and disadvantages of each method are discussed respectively. We further summarized the research progress of polyoxometalate-based metal-organic framework materials in the field of catalysis, and looked forward to their development trends in future.