A method for preparing silver micron hollow frame structure material

A frame structure and hollow technology, which is applied in the field of metal silver material preparation, can solve the problems of lack of preparation methods for silver micron hollow frame structure materials, etc.

Active Publication Date: 2021-08-24
合肥龙智机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that a variety of micro-nano silver with different shapes and structures can be prepared by using the existing technology; but in the prior art, there is still a lack of preparation methods for silver micro-hollow frame structure materials.

Method used

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  • A method for preparing silver micron hollow frame structure material

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Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Prepare silver micron hollow frame structure material according to the following steps

[0020] (1) At room temperature, configure AgNO with a concentration of 0.002mol / L 3 Aqueous solution; according to preset HF, FeSO 4 and AgNO 3 The molar ratio of 5:1.1:1 to AgNO 3 Add HF and FeSO to aqueous solution 4 , the stirring speed is set at 200 rpm, and the stirring is performed to obtain a clear mixed solution;

[0021] (2) The above mixed solution was placed in a water bath at a temperature of 35°C, and the reaction time was maintained for 1 h, and the resulting product was centrifuged, washed, and dried to obtain a silver micron hollow frame structure material.

Embodiment 2

[0022] Embodiment 2: Prepare silver micron hollow frame structure material according to the following steps

[0023] (1) At room temperature, configure AgNO with a concentration of 0.006 mol / L 3 Aqueous solution; according to preset HF, FeSO 4 and AgNO 3 The molar ratio of 15:1.1:1, to AgNO 3 Add HF and FeSO to aqueous solution 4 , the stirring speed is set at 200 rpm, and the stirring is performed to obtain a clear mixed solution;

[0024] (2) Put the above mixed solution in a water bath at a temperature of 50°C, and keep the reaction time for 0.75h, centrifuge, wash, and dry the resulting product to obtain a silver micron hollow frame structure material.

Embodiment 3

[0025] Embodiment 3: Prepare silver micron hollow frame structure material according to the following steps

[0026] (1) At room temperature, configure AgNO with a concentration of 0.01 mol / L 3 Aqueous solution; according to preset HF, FeSO 4 and AgNO 3 The molar ratio of 25:1.1:1, to AgNO 3 Add HF and FeSO to aqueous solution 4 , the stirring speed is set at 200 rpm, and the stirring is performed to obtain a clear mixed solution;

[0027] (2) The above mixed solution was placed in a water bath at a temperature of 65°C, and the reaction time was kept for 0.5h, and the resulting product was centrifuged, washed, and dried to obtain a silver micron hollow frame structure material.

[0028] The scanning electron microscope picture of the silver micron hollow frame structure material of embodiment 1-3 gained is as figure 1 shown.

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Abstract

The invention discloses a method for preparing a silver micron hollow frame structure material. The present invention is obtained through the following steps: first, configure a certain concentration of AgNO at room temperature 3 aqueous solution; then, to AgNO 3 Add appropriate amount of structure-directing agent HF and reducing agent FeSO to the aqueous solution 4 , forming a mixed solution; then, the above mixed solution is placed in a water bath at a certain temperature, and kept for a period of reaction time, and the resulting product is centrifuged, washed, and dried to obtain a silver micron hollow frame structure material. The invention provides a simple method for preparing the silver micron hollow frame structure material, and realizes the large-scale production of the silver micron hollow frame structure material.

Description

technical field [0001] The invention relates to the field of preparation of metallic silver materials, in particular to a structure-directing agent using HF and utilizing FeSO 4 reduced AgNO 3 A method for obtaining silver micron hollow frame structure materials. . Background technique [0002] Micro-nano silver has a wide range of applications. It is an important conductive medium for high-performance conductive coatings, basic materials such as flexible circuit boards, contact switches, and membrane switches, as well as various high-end electrodes and electromagnetic compatibility materials. [0003] The application performance of micro-nano silver is closely related to its morphology and structure. Therefore, the preparation of micro-nano silver with different morphology and structure has become a research hotspot in recent years. Liu Chunyan et al. (CN100531975C) adopted the chemical reduction method under acidic conditions, using water as the dispersion medium, dire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24
CPCB22F9/24
Inventor 程志鹏殷竟洲褚效中周翔戴本林赵伟仲慧张莉莉徐继明
Owner 合肥龙智机电科技有限公司
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