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Method for preparing carbon-coated lithium zinc titanate nanoribbon

A technology of carbon-coated zinc titanate and nanobelts, which is applied to electrical components, electrochemical generators, battery electrodes, etc., can solve the problems of large influence of molecular sieves and poor selectivity, and achieve good reproducibility, less agglomeration, and dispersion uniform effect

Active Publication Date: 2016-01-27
CHINA TOBACCO FUJIAN IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are disadvantages such as poor selectivity of ordinary activated carbon to harmful components in mainstream smoke, and molecular sieves have a greater impact on the taste of tobacco.

Method used

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  • Method for preparing carbon-coated lithium zinc titanate nanoribbon
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  • Method for preparing carbon-coated lithium zinc titanate nanoribbon

Examples

Experimental program
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Effect test

Embodiment 1

[0055] A preparation method of carbon-coated zinc lithium titanate nanobelt, comprising the following steps:

[0056] 1) TiO 2 The particles were placed in a strongly alkaline 10M NaOH solution, heated at 170°C for 1 day, and the TiO 2 The mass / volume ratio of particles to NaOH solution is 0.1g / 20ml;

[0057] 2) with 0.1M acid (such as HCl or HNO 3 ) washing the hydrothermal product obtained in step 1) to weak acidity, then stirring with 0.05M hydrochloric acid for 3 hours and then centrifuging to obtain a precursor (hydrogenated titanate nanoribbons);

[0058] 3) Weigh 0.3g of the precursor obtained in step 2), mix the above-mentioned precursor with zinc acetate and lithium hydroxide, and in terms of titanium, lithium and zinc, the molar ratio between them is Ti:Li:Zn =3:2:1, and 0.049g of glucose was added, 25mL of ethanol was added to the above mixture, stirred until gelatinous, and dried in an air atmosphere at 70°C;

[0059] 4) After the dried material is ground evenl...

Embodiment 2

[0064] A preparation method of lithium zinc titanate and carbon composite, comprising the following steps:

[0065] 1) TiO 2 The particles were placed in a strongly alkaline 10M NaOH solution, heated at 170°C for 1 day, and the TiO 2 The mass / volume ratio of particles to NaOH solution is 0.5g / 20ml;

[0066] 2) with 0.1M acid (such as HCl or HNO 3 ) washing the hydrothermal product obtained in step 1) to weak acidity, then stirring with 0.05M hydrochloric acid for 3 hours and then centrifuging to obtain a precursor (hydrogenated titanate nanoribbons);

[0067] 3) Weigh 0.3g of the precursor obtained in step 2), according to the stoichiometric ratio of titanium, lithium and zinc, mix the above precursor with zinc acetate and lithium hydroxide according to Ti:Li:Zn=3:2 : 1 stoichiometric ratio mixing, and adding 0.099g of glucose, adding 25mL of ethanol to the above mixture, stirring until gelatinous, and drying at 70°C in an air atmosphere;

[0068] 4) After the dried materi...

Embodiment 3

[0071] A preparation method of lithium zinc titanate and carbon composite, comprising the following steps:

[0072] 1) TiO 2 The particles were placed in a strongly alkaline 10M NaOH solution, heated at 170°C for 1 day, and the TiO 2 The mass / volume ratio of particles to NaOH solution is 1g / 20ml;

[0073] 2) with 0.1M acid (such as HCl or HNO 3 ) washing the hydrothermal product obtained in step 1) to weak acidity, then stirring with 0.05M hydrochloric acid for 3 hours and then centrifuging to obtain a precursor (hydrogenated titanate nanoribbons);

[0074] 3) Weigh 0.3g of the precursor obtained in step 2), according to the stoichiometric ratio of titanium, lithium and zinc, mix the above precursor with zinc acetate and lithium hydroxide according to Ti:Li:Zn=3:2 : 1 stoichiometric ratio mixing, and adding 0.198g of glucose, adding 25mL of ethanol to the above mixture, stirring until gelatinous, and drying at 70°C in an air atmosphere;

[0075] 4) After the dried material...

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Abstract

The invention relates to a method for preparing a carbon-coated lithium zinc titanate nanoribbon. TiO2 particles are put in a NaOH solution for performing a hydrothermal reaction to obtain a precursor; and then the carbon-coated lithium zinc titanate nanoribbon is prepared, under the condition of the existence of glucose, by a high-temperature calcining method. The preparation method for the carbon-coated lithium zinc titanate nanoribbon is simple, low in cost, low in energy consumption and high in repeatability.

Description

technical field [0001] The invention belongs to the field of nanomaterial preparation, and in particular relates to a method for preparing carbon-coated lithium zinc titanate nanobelts. Background technique [0002] With the increasing anti-smoking movement in the world and consumers' increasing concern about smoking and health, the market has higher and higher requirements for the quality of cigarettes, especially in recent years, some countries have required the labeling of harmful substances listed in the Hoffmann list , making the tobacco industry face increasing pressure. In addition, the announcement of the findings that low tar does not mean low harm and the signing of the World Framework Convention on Tobacco have also brought unprecedented pressure on the international tobacco industry. Therefore, reducing tar and harm is necessary for the development trend and survival of the tobacco industry at home and abroad. [0003] The full name of NNK is 4-(methylnitrosami...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/485H01M10/0525
CPCH01M4/366H01M4/485H01M10/0525Y02E60/10
Inventor 谢卫蓝通斌邓其馨黄延俊张廷贵黄朝章魏明灯
Owner CHINA TOBACCO FUJIAN IND
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