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Preparation method of high-stability amorphous manganous silicate

A high-stability, manganese silicate technology, applied in chemical instruments and methods, silicon compounds, non-metallic elements, etc., to achieve the effects of high production efficiency, easy cleaning and removal, and simple reaction process

Active Publication Date: 2016-06-15
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, there is no report about the preparation of high-stability amorphous manganese silicate in the prior art. Therefore, it is important to develop a method for efficiently preparing high-stability amorphous manganese silicate material for the further application of manganese silicate material. the meaning of

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  • Preparation method of high-stability amorphous manganous silicate

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Effect test

Embodiment 1

[0028] Amorphous manganese silicate is prepared by reacting sodium silicate and manganese chloride. Take 7.55g of manganese chloride and 10.85g of sodium silicate and dissolve them in 50mL of deionized water respectively. Under stirring, slowly add the manganese chloride solution into the sodium silicate solution, and mix well. The mixture was heated and boiled for 4 hours, cooled to room temperature, washed with deionized water three times, and then dried at 120°C to obtain 5.0 g of dark brown powder with a yield and purity close to 100%. According to X-ray diffraction pattern analysis (such as figure 1 Shown), the product is amorphous manganese silicate.

Embodiment 2

[0030] Weigh 1.0 g of the dark brown powder prepared in Example 1, heat in a tube furnace to 600° C. for 5 hours under a nitrogen atmosphere, and cool to room temperature to obtain a black powder. According to X-ray diffraction pattern analysis (such as figure 2 shown), the product is crystal phase composite manganese silicate Mn 2+ mn 3+ 6 SiO 12 (JCPDS41-1367).

Embodiment 3

[0032] Weigh 1.5g of the dark brown powder prepared in Example 1 and 1.05g of glucose, add deionized water to dissolve the glucose, stir and mix evenly, put it into a tube furnace after drying at 120°C, and react in a nitrogen atmosphere at 600°C for 5 Hours later, it was naturally cooled to room temperature to obtain a black powder. According to X-ray diffraction pattern analysis (such as image 3 Shown), the product is amorphous manganese silicate.

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Abstract

The invention discloses a preparation method of high-stability amorphous manganous silicate. The method comprises the steps that sodium silicate and manganese chloride are used as raw materials, and amorphous manganous silicate powder is obtained through boiling water processing; the amorphous manganous silicate powder and glucose are mixed to be subjected to a reaction under the temperature of 600-700 DEG C. According to the preparation method of the amorphous manganous silicate, the reaction time is short, the reaction temperature is low, the production efficiency is high, and the method is suitable for mass production. The obtained amorphous manganous silicate is high in purity and amorphous structural stability.

Description

technical field [0001] The invention relates to a preparation method of high-stability amorphous manganese silicate, belonging to the technical field of inorganic material preparation. Background technique [0002] Amorphous materials have the characteristics of long-range disorder, short-range order, and macroscopic isotropy, and exhibit some special physical and chemical properties, such as porous structure, large specific surface area, good mechanical properties, soft magnetic properties, and optical properties, etc. , Has been widely used in many fields, such as solar cells, permanent magnetic thin film materials, superconducting materials, sensitive functional materials, etc. [0003] According to recent research reports, amorphous materials have a uniform and loose structure, which is conducive to the diffusion and migration of lithium ions, and can accommodate volume expansion during charge and discharge, relax stress, and generate capacitive energy storage at the sam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/58H01M4/139C01B33/20
CPCC01B33/20H01M4/139H01M4/5825Y02E60/10
Inventor 白玉俊王月娅伦宁亓永新
Owner SHANDONG UNIV
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