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Method for preparing germanium material with germanate ion water-soluble precursor

A technology of germanic acid and ions, which is applied in metal material coating process, liquid chemical plating, coating, etc., can solve the problems of complex process, high cost, and many safety hazards, and achieve the effect of cheap price and mild reaction process

Active Publication Date: 2014-10-15
敬承斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing germanium materials, which can solve the problems of high cost, too complicated process and many potential safety hazards in the existing germanium material preparation methods

Method used

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  • Method for preparing germanium material with germanate ion water-soluble precursor
  • Method for preparing germanium material with germanate ion water-soluble precursor
  • Method for preparing germanium material with germanate ion water-soluble precursor

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Embodiment 1

[0030] The preparation method of germanium nanopowder of the present invention, carries out according to the following steps successively:

[0031] (1) dissolving 0.3g of germanium dioxide into 10ml of ammonia solution with a mass concentration of 3% under heating conditions to obtain a germanate ion water-soluble precursor;

[0032] (2) Add 0.542g of sodium borohydride to the above-mentioned precursor, stir evenly and let stand for 24 hours;

[0033] (3) Centrifuge and wash the above reaction product several times until the pH value of the supernatant in the centrifuge tube is 7, collect the sediment in the lower part of the centrifuge tube and heat it at 120°C for 4 hours in an air atmosphere to obtain a gray-black powder. The X-ray of the product Diffraction spectrum see figure 1 , the diffraction peak shown belongs to the diffraction peak of face-centered cubic germanium, and the SEM photo of the product is shown in figure 2 . figure 1 combine figure 2 It shows that ...

Embodiment 2

[0036] The preparation method of germanium nanopowder of the present invention, carries out according to the following steps successively:

[0037] (1) dissolving 0.3g of germanium dioxide into 10ml of ammonia solution with a mass concentration of 3% under heating conditions to obtain a germanate ion water-soluble precursor;

[0038] (2) Add 0.365g of sodium borohydride to the above-mentioned precursor, stir evenly and let stand for 24 hours;

[0039] (3) The above reaction product was centrifuged and washed several times until the pH value of the supernatant in the centrifuge tube was 7, and the lower part of the centrifuge tube was collected and heated at 180° C. for 4 hours in an air atmosphere to obtain crystalline germanium nanopowder.

Embodiment 3

[0041] The preparation method of germanium nanopowder of the present invention, carries out according to the following steps successively:

[0042] (1) dissolving 0.3g of germanium dioxide into 10ml of ammonia solution with a mass concentration of 3% under heating conditions to obtain a germanate ion water-soluble precursor;

[0043] (2) Add 0.645g of sodium borohydride to the above precursor, stir evenly and let stand for 48 hours;

[0044] (3) The above reaction product was centrifuged and washed several times until the pH value of the supernatant in the centrifuge tube was 7, and the lower part of the centrifuge tube was collected and heated at 160° C. for 4 hours in an air atmosphere to obtain crystalline germanium nanopowder.

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Abstract

The invention relates to a preparation method for Ge (germanium) material, particularly relates to the preparation for Ge nanometer powder and Ge film, and belongs to the technical field of inorganic material. Ge material comprises Ge nanometer power, Ge film, Ge porous film material and the like, wherein the preparation method for Ge nanometer powder comprises the following steps: firstly, Ge acid radical ion water-solubility precursor is reacted with sodium borohydride, then the reaction product is centrifuged, washed, and dried, and finally receives heat treatment. The Ge acid radical ion water-solubility precursor adopted in the invention to prepare Ge material can be obtained only by dissolving germanium dioxide into alkaline solution, the price of the germanium dioxide is low, and no toxicity or pollution is generated, so that germanium dioxide is particularly suitable for industrialized production. In the invention, compared with other reducing agents such as Na (Natrium) and metal Naphthalene chemical compound, sodium borohydride being adopted as the reducing agent can enable the reaction to be mild, the reaction can be generated under the ordinary temperature and the normal pressure, and the problems in the Ge material preparation such as high cost, excessively complicated technology and potential safety hazard are solved.

Description

technical field [0001] The invention relates to a preparation method of germanium material, in particular to the preparation of germanium nanopowder and germanium film, belonging to the technical field of inorganic materials. Background technique [0002] The electron and hole mobility of germanium is higher than that of silicon, the saturation resistance is very small, and the performance in high-frequency and high-power semiconductor devices is better than that of silicon. In addition, germanium transistors have good low-voltage performance, low power consumption, and almost no heat radiation, so they are also suitable for battery-powered devices or micro-electric devices that require no heat. Germanium has excellent detection properties, with high resolution for gamma rays, infrared radiation and temperature. In recent years, the strong photoluminescence of nanoscale germanium crystals has attracted widespread attention and has been applied to biological imaging techniqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B82Y40/00C23C18/31
Inventor 敬承斌聂荣志臧晓丹单海洋王伟姜迎静李毅褚君浩
Owner 敬承斌