Solvent thermal synthesizing method of lead fluoride hollow nano sphere

A synthesis method and technology of nanospheres, applied in the direction of lead halide, etc., to achieve the effect of safe operation, controllable size and shape

Inactive Publication Date: 2009-03-25
天津佰腾生产力促进中心有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For the preparation method of lead fluoride hollow nanospheres, there are few reports at present

Method used

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  • Solvent thermal synthesizing method of lead fluoride hollow nano sphere
  • Solvent thermal synthesizing method of lead fluoride hollow nano sphere
  • Solvent thermal synthesizing method of lead fluoride hollow nano sphere

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0015] Add 20.75mL cyclohexane and 1mL n-pentanol to an 80mL beaker, add 1g of cetyltrimethylammonium bromide under stirring, and stir until the solution is transparent (water and cetyltrimethylammonium bromide The molar ratio of ammonium is 5). Prepare two parts of the above-mentioned microemulsion, add 0.25mL0.5mol / L hydrogen fluoride and 0.5mol / L lead nitrate aqueous solution respectively, mix the two microemulsions together after stirring for 30min, continue stirring for 30min, transfer to 80mL reaction kettle, in 120 After aging at ℃ for 12 hours, it was naturally cooled to room temperature. The obtained white precipitate was washed with isopropanol and deionized water, and dried in a vacuum oven at 80℃ for 12 hours to obtain the final product.

Embodiment approach 2

[0017] The molar ratio of water and cetyltrimethylammonium bromide in Embodiment 1 is changed to 15, and other conditions remain unchanged.

Embodiment approach 3

[0019] The molar ratio of water and cetyltrimethylammonium bromide in Embodiment 1 is changed to 20, and other conditions remain unchanged.

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Abstract

The invention relates to a method for hot preparation of hollow lead fluoride nanometer spheres by micro-emulsion assisted solvent, belonging to the technical field of preparation technology of inorganic nanometer materials. Adopting cyclohexane as the solvent, the method for hot preparation of hollow lead fluoride nanometer spheres by micro-emulsion assisted solvent uitlizes the precipitation reaction between hydrogen fluoride and lead ions and takes a surfactant as a soft template, to prepare the hollow lead fluoride nanometer spheres; wherein, the soft template is made from a plurality of surfactants, and the lead ions come from the soluble lead salts; the synthesized magnesium carbonate nanometer rods are provided with a diameter roughly between 30 and 100nm. Through the method for hot preparation of hollow lead fluoride nanometer spheres by micro-emulsion assisted solvent, the synthesized hollow lead fluoride nanometer spheres have the advantages of controllable size, low cost, simple preparation equipment, safe and easy operation, excellent performance of technique repeatability and stable products quality, and are suitable for the large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of inorganic nanometer material preparation technology, and relates to a preparation method of inorganic nanometer material, specifically a method for synthesizing lead fluoride hollow nanospheres. It can be applied to solid electrolytes, diaphragms, chemical sensors, microelectronics and optoelectronic device materials, etc. Background technique [0002] PbF 2 Crystals are important superionic conductors with wide applications in microelectronic and optoelectronic devices. For example, it can be used as solid electrolyte, separator and chemical sensor material. In addition, PbF 2 The crystal has the characteristics of high density, short radiation length, large average atomic number and light transmission range extending to the ultraviolet region, so it is expected to become the most ideal Cherenkov radiator. Studies have shown that PbF 2 The performance of the material is directly related to the reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G21/16
Inventor 宋立民张淑娟陈斌
Owner 天津佰腾生产力促进中心有限公司
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