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Preparation method of FeOCl

A ferric oxychloride, fully grinding technology, used in chemical instruments and methods, iron compounds, inorganic chemistry, etc., can solve problems such as nitrogen waste, and achieve the effect of pure phase and good crystal shape

Inactive Publication Date: 2012-06-13
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires to be carried out in a tube furnace and under the protection of nitrogen, resulting in a large waste of nitrogen

Method used

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  • Preparation method of FeOCl

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] a. Take a certain amount of FeCl 3 ·6H 2 O, put into an agate mortar and grind thoroughly, transfer to a crucible.

[0011] b. Put the above substances in an oven, hydrolyze at 220°C for 4 hours, and cool down to room temperature naturally.

[0012] c. Then take out the crucible, put the sample in a mortar and grind it thoroughly, rinse it with a large amount of acetone to remove the unreacted FeCl 3 ·6H 2 0, then put it into a vacuum drying oven for vacuum drying at 80°C.

[0013] The XRD figure of the ferric oxychloride that the present embodiment obtains is figure 1 In a, it can be seen from the figure that the obtained sample has a pure phase and a good crystal form.

Embodiment 2

[0015] a. Take a certain amount of FeCl 3 ·6H 2 O, put into an agate mortar and grind thoroughly, transfer to a crucible.

[0016] b. Put the above substances in an oven, hydrolyze at 230°C for 2.5 hours, and cool down to room temperature naturally.

[0017] c. Then take out the crucible, put the sample in a mortar and grind it thoroughly, rinse it with a large amount of acetone to remove the unreacted FeCl 3 ·6H 2 0, then put it into a vacuum drying oven for vacuum drying at 80°C.

[0018] The XRD figure of the ferric oxychloride that the present embodiment obtains is figure 1 In b, it can be seen from the figure that the obtained sample has a pure phase and a good crystal form.

Embodiment 3

[0020] a. Take a certain amount of FeCl 3 ·6H 2 O, put into an agate mortar and grind thoroughly, transfer to a crucible.

[0021] b. Put the above substances in an oven, hydrolyze at 240°C for 90 minutes, and cool down to room temperature naturally.

[0022] c. Then take out the crucible, put the sample in a mortar and grind it thoroughly, rinse it with a large amount of acetone to remove the unreacted FeCl 3 ·6H 2 0, then put it into a vacuum drying oven for vacuum drying at 80°C.

[0023] The XRD figure of the ferric oxychloride that the present embodiment obtains is figure 1 In c, it can be seen from the figure that the obtained sample has a pure phase and a good crystal form.

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Abstract

The invention discloses a preparation method of FeOCl. The preparation method is characterized in that the preparation method comprises the following steps: 1, putting analytically pure FeCl3.6H2O into an agate mortar, fully grinding, and dumping the ground FeCl3.6H2O into a crucible; 2, heating FeCl3.6H2O for 1-4h at 220-250DEG C to electrolyze FeCl3.6H2O, and naturally cooling to room temperature; and 3, putting the obtained substance into the mortar, fully grinding, fully leaching the ground substance with waterless acetone, putting the leached substance into a vacuum drying box, and vacuum-drying at 80DEG C to obtain FeOCl. The preparation method has the advantages of simplicity, high efficiency, low energy consumption, low cost, and realization of environmental protection of a chemical reaction; and obtained FeOCl which has the advantages of pure phase and good crystal form is suitable for the large scale industrial production.

Description

technical field [0001] The invention relates to the preparation of inorganic functional materials, in particular to a method for rapidly preparing ferric oxychloride (FeOCl). Background technique [0002] Ferric oxychloride is a kind of MOCl (M=Fe,Ti,V,Cr,In) compound, which has a special layered structure and unique electrochemical properties, and is often used as a cathode material for lithium primary batteries. The discharge capacity is about 3 times larger than that of MnO2, and it is a new type of functional material that is widely used at present. Since FeOCl is a layered compound with an interlayer distance of about 0.8 nm, it is very easy to intercalate. It has been reported in the literature that it is modified with aniline, pyrrole, etc., so that its properties as a cathode material for lithium secondary electrodes are more stable. It has good charge and discharge performance and is a very potential functional material. [0003] There are many reports on the prep...

Claims

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Application Information

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IPC IPC(8): C01G49/00
CPCY02P20/10
Inventor 李强郭军李彩霞郇昌天吕晴
Owner EAST CHINA NORMAL UNIV
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