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A preparation of pure phase SR 10 mn 19 co 1 as 20 compound method

A technology for sr10mn19co1as20 and compounds, which is applied in the field of preparing pure-phase Sr10Mn19Co1As20 compounds, and can solve problems such as difficult separation

Inactive Publication Date: 2020-07-31
TAIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Sr 2 mn 3 As 2 o 2 difficult to separate from the sample

Method used

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  • A preparation of pure phase SR <sub>10</sub> mn <sub>19</sub> co <sub>1</sub> as <sub>20</sub> compound method
  • A preparation of pure phase SR <sub>10</sub> mn <sub>19</sub> co <sub>1</sub> as <sub>20</sub> compound method

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Embodiment Construction

[0009] The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0010] The specific steps of this embodiment are as follows: use elemental Sr, Mn, Co, As as raw materials, first scrape off the oxide layer on the surface of the elemental block Sr and then cut the blocky Sr into pieces; elemental Co and elemental Mn respectively After reducing for half an hour at 300°C in an ammonia gas atmosphere, cool to room temperature; grind simple As into powder; mix the above four pretreated raw materials with a molar ratio of Sr:Mn:Co:As=10:19:1:20 Weigh the proportioning ratio, the total mass weighed is 1.5g, then grind and mix Co powder, Mn powder and As powder evenly, first pour half of the above-mentioned uniformly mixed powder into the tableting mold, and then add crushed Sr block, then pour the other half of the powder mixed evenly, and then press it to 5 MPa with a tablet machine, release the pressure after keeping i...

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Abstract

The invention discloses a method for preparing a pure-phase compound Sr10Mn19Co1As20. The method comprises steps as follows: pretreatment of raw materials; weighing and preforming of the raw materials; tube sealing; solid-phase reaction. The invention further discloses the compound Sr10Mn19Co1As20 which is prepared with the method.

Description

technical field [0001] The invention relates to a method for preparing pure phase Sr 10 mn 19 co 1 As 20 A method for the compound and a compound prepared by the method. [0002] technical background [0003] In the preparation of Sr 10 mn 19 co 1 As 20 (or expressed as SrMn 1.9 co 0.1 As 2 ) compounds and their analogs, there are often heterogeneous Sr in the product 2 mn 3 As 2 o 2 . The presence of impurity phases will interfere with the physical properties of samples. However, Sr 2 mn 3 As 2 o 2 Difficult to separate from samples. Therefore, there is an urgent need for a method that can remove Sr in the preparation stage. 2 mn 3 As 2 o 2 Miscellaneous. Contents of the invention [0004] The object of the present invention is to aim at being difficult to prepare pure phase Sr 10 mn 19 co 1 As 20 The problem of providing a way to prepare pure phase Sr 10 mn 19 co 1 As 20 Methods. [0005] The realization of the present invention comprises...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G51/00
CPCC01G51/006C01P2002/72
Inventor 申士杰钟文武陈基根林志萍王宗鹏詹白勺
Owner TAIZHOU UNIV