Benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with reversible transition structure and preparation method thereof

A benzoate and transition metal technology is applied in the field of benzoate intercalated layered transition metal hydroxide one-dimensional nanomaterials and their preparation, and can solve the problems of low yield, complex one-dimensional hydroxide nanomaterials, and the like, Achieve the effect of good repeatability, large-scale industrial production and low cost

Inactive Publication Date: 2014-08-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing methods for preparing one-dimensional hydroxide nanomaterials are very complicated and have low yields

Method used

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  • Benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with reversible transition structure and preparation method thereof
  • Benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with reversible transition structure and preparation method thereof
  • Benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with reversible transition structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 1. Weigh 5.8206g of Co(NO 3 ) 2 ·6H 2 O to join to CO 2 Deionized water is configured into a 100ml divalent transition metal salt solution, and 5.7640g of sodium benzoate is weighed and added to remove CO 2 Deionized water is configured into 100ml salt solution;

[0023] 2. Pour the sodium benzoate solution and the divalent transition metal salt solution into a four-necked flask, react at 95°C for 48 hours, and stir at a speed of 200r / min;

[0024] 3. After the reaction is over, the slurry is cooled and filtered to remove CO 2 Washing with deionized water three times, centrifuging, and drying the obtained product at room temperature for 12 hours to obtain a benzoate intercalated layered cobalt hydroxide one-dimensional nanomaterial with reversible structural transformation properties.

[0025] The product was characterized by SEM as a one-dimensional nanorod with a length of 7 μm and a diameter of 70-90 nm. Put the product at a high temperature of 60-230°C or unde...

Embodiment 2

[0027] 1. Weigh 1.4551g of Co(NO 3 ) 2 ·6H 2 O to join to CO 2 Prepare 100ml of divalent transition metal salt solution with deionized water, weigh 1.4410g of sodium benzoate and add to remove CO 2 Deionized water is configured into a 100ml solution;

[0028] 2. Pour the sodium benzoate solution and the divalent transition metal salt solution into a four-necked flask, react at 60°C for 48 hours, and stir at a speed of 200r / min;

[0029] 3. After the reaction is over, the slurry is cooled and filtered to remove CO 2 Washing with deionized water three times, centrifuging, and drying the obtained product at room temperature for 12 hours to obtain a benzoate intercalated layered cobalt hydroxide one-dimensional nanomaterial with reversible structural transformation properties.

[0030] The product was characterized by SEM as a one-dimensional nanofiber with a length of 170 μm and a diameter of 125 nm. Put the product at a high temperature of 60-230°C or under vacuum conditio...

Embodiment 3

[0032] 1. Weigh 29.08g of Ni(NO 3 ) 2 ·6H 2 O to join to CO 2 Prepare 100ml of divalent transition metal salt solution with deionized water, weigh 28.82g of sodium benzoate and add to remove CO 2 Deionized water is configured into a 150ml solution;

[0033] 2. Pour the sodium benzoate solution and the divalent transition metal salt solution into a four-necked flask, react at 95°C for 48 hours, and stir at a speed of 200r / min;

[0034] 3. After the reaction is over, the slurry is cooled and filtered to remove CO 2Washing with deionized water three times, centrifuging, and drying the obtained product at room temperature for 12 hours to obtain a benzoate-intercalated layered nickel hydroxide one-dimensional nanomaterial with reversible structural transformation properties.

[0035] The product was characterized by SEM as a one-dimensional nanorod with a length of 2 μm and a diameter of 70 nm. Put the product at a high temperature of 60-230°C or under vacuum conditions, the ...

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Abstract

The invention belongs to the technical field of nano materials, and particularly relates to a benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with a reversible transition structure and a preparation method thereof. The preparation method comprises the following steps: divalent transition metal salt and benzoate are taken as raw materials; the pH value is adjusted by sodium hydroxide; then divalent transition metal salt and benzoate are reacted at the temperature of 25 to 150 DEG C; and the benzoic acid-intercalated laminated transition metal hydroxide one-dimensional nano material with the reversible transition structure can be obtained finally. The method is simple in process, and low in cost, and can achieve large-scale industrial production; and one-dimensional material has anisotropic special characters, thereby being widely applied in fields of magnetics, optics, electrics and the like.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a benzoate-intercalated layered transition metal hydroxide one-dimensional nanomaterial with reversible structural transformation properties and a preparation method thereof. Background technique [0002] Anionic supramolecular compounds with layered structure have attracted extensive attention due to their unique layered structure and the tunable properties of layered elements and interlayer ions. The introduction of organic anions into the interlayer can not only be used as an adsorbent to increase the adsorption capacity of organic pollutants, but also make the material have magnetic, electrochemical and excellent catalytic properties, making it suitable for the preparation of conventional and nano-organic-inorganic composite materials, biological Sensors and other aspects have unique advantages. [0003] Since the discovery of carbon nanotubes, o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B13/14C01G51/04C01G53/04B82Y30/00
Inventor 王连英郭晓迪何静
Owner BEIJING UNIV OF CHEM TECH
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