Preparation method of polyacid-like late transition metal-organic network catalyst material

Abstract

The invention belongs to a chemical synthesis method and in particular relates to a preparation method of a polyacid-like late transition metal-organic network catalyst material. The polyacid-like late transition metal-organic network catalyst material has a (3,4,24)-connecting topological polyacid-like salt-organic compound structure, is a crystalline catalyst which is obtained by converting a late transition metal salt and an organic bridging ligand into a metal organic network under appropriate pH and temperature, and has a chemical component of [M16(HPO3)4]L3, wherein L is the organic bridging ligand, and M contains Zn, Cd, Cu, Co, Ni and the like. The polyacid-like late transition metal-organic network catalyst is a late transition metal oxygen cluster and breaks through the traditional polyacid limit; and as late transition metal ions are introduced into the catalyst, the stability, selectivity and catalytic activity of the catalyst can be effectively improved.

Description

technical field [0001] The invention belongs to a chemical synthesis method, in particular to a preparation method of a polyacid-like post-transition metal-organic network catalyst material. Background technique [0002] Polyacids, that is, anionic metal oxide clusters (POM), are a class composed of d 0 or d 1 Electron-configured early-transition metals and oxygen-formed polymetallic oxygen clusters. The chemistry of polyacids has attracted much attention in the past two decades, not only because of their fascinating structural and electronic properties, but also because of their wide-ranging applications ranging from catalysis to medicine. completely by d 10 The POM clusters constructed by late-transition metals in electronic configuration will be unstable due to high negative charge and difficult to be separated, although a series of late-transition metal ions (such as Fe 3+ , Co 2+ , Cu 2+ , Mn 2+ and Zn 2+ ) substituted polyacid clusters are often reported. Comp...

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Problems solved by technology

However, the catalysts obtained by the above methods may encounter the following unfavorable factors: homogeneous form, difficult to control the synthesis, active sites fall off from the support, preventing substrates from accessing catalytic active sites, etc.

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