Method for preparing protonated B-type Anderson-type heteropoly acid by aqueous phase method

A technology for protonation and heteropolyacids, which is applied in the field of synthesis and characterization of protonated B-type Anderson-type heteropolyacids by aqueous method, which can solve the problems of restricting the research of Anderson-type heteropolyacids, low stability, etc., and achieves a high yield High, high purity, economical effect
CN109847775AInactive Publication Date: 2019-06-07DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2019-06-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a universal method for preparing a protonated B-type Anderson-type heteropoly acid by an aqueous phase method. A commercialized water-soluble molybdate is used as the reaction raw material, the heteropoly acid is prepared by adjusting pH in a system through an inorganic acid and adding a corresponding central heteroatom metal salt, and the central heteroatom includes most oftransition metals and main group metals. The method is highly controllable, and simple and easy to operate, the yield is up to 95%, the purity is high, and the large-scale production in a kilogram scale can be achieved. The topological structure of the heteropoly acid is determined by single crystal diffraction. The B-type Anderson-type heteropoly acid (NH4)n[Hy(XO6)Mo6O18] can be used as a special solid acid catalyst, and has broad application prospects in the fields of chemistry, life, environmental science and the like. Different from traditional methods that organic solvents are used in the production process, the method uses water as the solvent, and the preparation is carried out under mild conditions, so that the method is environmentally friendly, has economic benefits, and is inline with the development direction of green production advocated by the state.
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Description

technical field

[0001] The invention belongs to the field of inorganic nano synthesis, in particular to the synthesis and characterization of protonated B-type Anderson type heteropolyacids by aqueous phase method. Background technique

[0002] Polyoxometalates, also known as polyoxometalates (ab.POMs), are composed of high-valence transition metal ions (such as Mo(VI), W(VI), V(V), Nb(V), Ta(V ), etc.) are highly polymerized with oxygen to form a "molecular state" inorganic nanocluster compound with a spatial network structure. Polyacid compounds have a wide variety, diverse structures, and rich and varied physical properties such as light, electricity, and magnetism. They are a class of shining star clusters, especially in catalytic oxidation, and are of great application value in fields such as energy chemistry. At present, it has important applications in academic basic research and industry.

[0003] According to whether there is a central heteroatom in the multi-acid...

Claims

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