Preparation method of three-dimensional carbon-boron nitride nanometer material

A nanomaterial, boron nitride technology, applied in chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., to achieve uniform morphology, simple method and low price.

Inactive Publication Date: 2016-05-18
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no efficient and safe preparation method to prepare three-dimensional carbon-boron nitride nanomaterials with low

Method used

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  • Preparation method of three-dimensional carbon-boron nitride nanometer material
  • Preparation method of three-dimensional carbon-boron nitride nanometer material
  • Preparation method of three-dimensional carbon-boron nitride nanometer material

Examples

Experimental program
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Embodiment 1

[0033] (1) Weigh 20.9g of diboron trioxide and 29.8g of triethanolamine, and mix the two into a 50ml water-heated tank. At this time, the boron / nitrogen molar ratio of diboron trioxide and triethanolamine in the reaction material is 3:1, and the volume of the mixture accounts for about 80% of the capacity of the inner tank. Add a magnet and stir rapidly on a magnetic stirrer for 1 hour to fully mix the reactants;

[0034] (2) Place the reactor liner equipped with the reaction material in step 1 in the reactor, seal it, and heat it at 180° C. for 10 hours to carry out solvent heat treatment (triethanolamine plays the role of reactant and solvent at the same time), and then let The reaction kettle is naturally cooled to room temperature, and the mixed colloid of diboron trioxide-triethanolamine is obtained after unloading the kettle;

[0035] (3) Take 2.52 grams of boric acid and 2.47 grams of melamine and add them to 100 ml of deionized water respectively, stir for 1 hour and th...

Embodiment 2、 example 3

[0041] In embodiment 1 step (1), the weighing amount of diboron trioxide is respectively determined as: 6.96g, 2.32g, is about to change the consumption of diboron trioxide and triethanolamine into respectively according to boron atom and nitrogen atom molar ratio as 1:1 and 1:3 were mixed and added to the inner tank of the reactor, and other operations were the same as in Example 1, and the obtained product was the same as in Example 1.

Embodiment 4、 example 5

[0043] The weighing amount of boric acid in the embodiment 1 step (3) is set as 0.5g, 5g respectively; The amount of maintaining melamine is constant. Promptly only change the concentration of boric acid in the reactant to contain 0.005 gram, 0.05 gram of boric acid in every milliliter of water respectively, keep other each operation all identical with embodiment 1, the product that obtains is with embodiment 1.

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Abstract

The invention relates to a preparation method of a three-dimensional carbon-boron nitride nanometer material. The preparation method adopts a three-step synthesis method, comprising the following steps: step 1, preparation of precursor colloid of diboron trioxide triethanolamine through thermosynthesis of solvent; step 2, preparation of precursor powder of melamine hypoboric acid through synthesis by a hydrothermal method; step 3, mixing of the precursor obtained in step 1 with the precursor obtained in step 2, uniform grinding and high temperature pyrolysis under reaction atmosphere, so as to obtain the three-dimensional carbon-boron nitride nanometer material with high specific surface area and uniform morphological structure. The preparation method has the advantages of low cost, high yield, no pollution, strong application and the like, and a novel three-dimensional carbon-boron nitride nanometer material with high specific surface area, high quality, high purity and high performances of both carbon and boron nitride, which can not be obtained by the existing method, can be obtained by the preparation method disclosed by the invention.

Description

technical field [0001] The technical solution of the present invention relates to the technical synthesis field of carbon and boron nitride nanomaterials, specifically a synthesis method and application of a three-dimensional carbon-boron nitride nanomaterial. Background technique [0002] Nanotechnology is an emerging technology that has emerged and developed rapidly in modern times. Nanomaterials are widely used in fine ceramics, medicine, energy, environment, sensors and other fields. Carbon nanomaterials have a unique microstructure and exotic electrical, mechanical, mechanical properties, and quantum size effects, and exhibit many excellent properties in the fields of new energy, environment, biology, medicine, information, and aerospace. Hexagonal boron nitride (h-BN) nanomaterials, which are isoelectronics with graphite, have excellent high temperature oxidation resistance, chemical stability, excellent lubrication performance, high thermal conductivity, good wave tra...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28
CPCB01J20/0248B01J20/205B01J20/28045C02F1/281C02F1/288
Inventor 唐成春贾惠超刘振亚李杰徐学文
Owner HEBEI UNIV OF TECH
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