Preparation method of ferromanganese component fine adjustable Prussian white mesomorphic material

A mesocrystalline and fine technology, applied in the direction of manganese halide, ferricyanide, metal cyanide, etc., can solve the problems of difficult to control the size and shape of Prussian white, the disordered size of Prussian white particles, uneven stability, etc., to achieve short cycle time, Non-perishable and low-cost effects

Active Publication Date: 2018-11-16
FUJIAN XINSEN CARBON
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Problems solved by technology

[0003] However, the ferrous iron in Prussian white is unstable in the air, and is easily oxidized to ferric iron, thereby converting to Prussian blue, so it needs to be carried out under a protective atmosphere during preparation and use, and the reaction rate is generally slower in the synthesis process. Fast, difficult to control the size and shape of the prepared Prussian white, the prepared Prussian white particle size is mostly disordered, uneven and poorly stable, thus limiting the application of Prussian white

Method used

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  • Preparation method of ferromanganese component fine adjustable Prussian white mesomorphic material
  • Preparation method of ferromanganese component fine adjustable Prussian white mesomorphic material
  • Preparation method of ferromanganese component fine adjustable Prussian white mesomorphic material

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Embodiment 1

[0027] Ferromanganese component finely adjustable Prussian white (Mn II -PBA) Mesogenic material preparation:

[0028] (1) Dissolve 0.12 g of potassium ferrocyanide and 3.8 g of polyvinylpyrrolidone in 50 mL of 0.1M dilute hydrochloric acid solution, and stir at room temperature until the solid is completely dissolved to obtain a ferrous ion solution;

[0029] (2) Add 0.0358 g of manganese chloride solid to the above solution, Fe:Mn=1:1, stir until completely dissolved, and place in an ultrasonic machine for ultrasonic treatment for 30 minutes;

[0030] (3) Pour the ultrasonicated solution into a high-pressure reactor, heat it in water at 80°C for 24 hours, remove the supernatant after natural cooling, wash and centrifuge the precipitate with deionized water and ethanol three times each to obtain manganese-doped Prussia White;

[0031] (4) Vacuum-dry the Prussian white doped with manganese chloride for 12 h until the water evaporates completely at 60 °C to obtain Mn II -PBA...

Embodiment 2

[0034] The preparation method of this example is the same as that of Example 1, the low-valent manganate added is manganese formate, and the bimetallic Prussian mesogen is synthesized under other conditions unchanged.

[0035] Table 1 is the manganese chloride doping Prussian white (Mn II -PBA) spectral data

[0036]

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Abstract

The invention belongs to the technical field of material science and chemical preparation and discloses a preparation method of a ferromanganese component fine adjustable Prussian white mesomorphic material. The preparation method comprises the following steps: dissolving potassium ferrocyanide and a stabilizer into a dilute hydrochloric acid solution and then adding divalent manganate into a mixed solution; after ultrasonic treatment is carried out for 30 minutes, carrying out 80 DEG C hydrothermal treatment for 24 hours; then carrying out natural cooling, washing and centrifugally separatingthe obtained precipitate and drying for 12 hours to obtain a cubic Prussian white mesomorphic nano-composite material. The cubic Prussian white mesomorphic nano-composite material with the characteristics of stable presence at room temperature and uniform size and morphology is synthesized by controlling the doping amount of low-valence manganate; the preparation method has the advantages of simple technology and low cost, and provides certain guidance for shape control synthesis and stability improvement of Prussian white.

Description

technical field [0001] The invention belongs to the technical field of material science and chemical preparation, and in particular relates to a preparation method of Prussian mesocrystalline material with finely adjustable ferromanganese components. Background technique [0002] Nowadays, metal-organic frameworks (MOFs) have received widespread attention due to their variety, tunable pore size, large specific surface area, and easy functionalization of the structure. They have good applications in the fields of gas adsorption and separation, catalysis, magnetism, and biomedicine. prospect. Among them, there are a large number of voids in the Prussian white space structure, which is conducive to the intercalation and deintercalation of ions, so it has excellent performance in electrocatalysis and sensors, and is gradually favored by researchers. [0003] However, the ferrous iron in Prussian white is unstable in the air, and is easily oxidized to ferric iron, thereby conver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01C3/12C01G45/06
CPCC01C3/12C01G45/06C01P2002/01C01P2002/72C01P2002/80C01P2004/03C01P2006/12C01P2006/16
Inventor 于岩莫乔铃许优庄赞勇
Owner FUJIAN XINSEN CARBON
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