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Transition metal-based hybrid material nanotube as well as preparation method and application thereof

A transition metal and transition metal salt technology, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc. The problem of harsh reaction conditions, etc., achieves the effect of simple and efficient synthesis method, improved energy utilization rate, and high controllability.

Active Publication Date: 2021-08-20
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current synthesis method of transition metal-based one-dimensional materials is solvothermal synthesis, which has the characteristics of high risk, low energy utilization rate, harsh reaction conditions, and low repetition rate, making it difficult to produce on a large scale.

Method used

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  • Transition metal-based hybrid material nanotube as well as preparation method and application thereof
  • Transition metal-based hybrid material nanotube as well as preparation method and application thereof
  • Transition metal-based hybrid material nanotube as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A transition metal-based hybrid material nanotube and a preparation method thereof, comprising the following steps:

[0033] S1, weigh 404mg iron nitrate Fe (NO 3 ) 3 9H 2 O was dissolved in 8 mL of deionized water and stirred for 1 min to form a homogeneous solution; 300 mg of melamine was uniformly dispersed in the above solution; 900 mg of anhydrous citric acid was added and stirred for 5 min to form a homogeneous mixed solution. The pH of the test solution was 5-6, and then continuously Stir for 2 hours to obtain a yellow turbid solution, then centrifuge the yellow turbid solution at a speed of 3000 rpm for 5 minutes to obtain a precipitate;

[0034] S2. The precipitate of S1 is washed with deionized water until the system becomes neutral, and freeze-dried overnight to obtain transition metal iron-based hybrid material nanotubes in the form of yellow powder.

Embodiment 2

[0036] A transition metal-based hybrid material nanotube and a preparation method thereof, comprising the following steps:

[0037] S1, weigh 240mg copper nitrate Cu(NO 3 ) 2 ·3H 2 O was dissolved in 8 mL of deionized water and stirred for 1 min to form a homogeneous solution; 300 mg of melamine was uniformly dispersed in the above solution; 900 mg of anhydrous citric acid was added and stirred for 5 min to form a homogeneous mixed solution. The pH of the test solution was 5-6, and then continuously Stir for 2 hours to obtain a blue turbid solution, then centrifuge the blue turbid solution at a speed of 5000 rpm for 3 minutes to obtain a precipitate;

[0038] S2. The precipitate of S1 is washed with deionized water until the system becomes neutral, and freeze-dried overnight to obtain transition metal copper-based hybrid material nanotubes in the form of blue powder.

Embodiment 3

[0040] A transition metal-based hybrid material nanotube and a preparation method thereof, comprising the following steps:

[0041] S1, weigh 404mg iron nitrate Fe (NO 3 ) 3 9H 2 O and 290mg nickel nitrate Ni(NO 3 ) 2 ·6H 2 O was dissolved in 8 mL of deionized water and stirred for 1 min to form a homogeneous solution; 300 mg of melamine was uniformly dispersed in the above solution; 900 mg of anhydrous citric acid was added and stirred for 5 min to form a homogeneous mixed solution. The pH of the test solution was 5-6, and then continuously Stir for 2 hours to obtain a yellow turbid solution, then centrifuge the yellow turbid solution at a speed of 4000 rpm for 4 minutes to obtain a precipitate;

[0042] S2. The precipitate of S1 was washed with deionized water until the system became neutral, and freeze-dried overnight to obtain transition metal iron-nickel-based hybrid material nanotubes in the form of yellow powder.

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Abstract

The invention provides a transition metal-based hybrid material nanotube as well as a preparation method and application thereof, belongs to the technical field of synthesis of nano materials, and relates to a hybrid material and a one-dimensional nano material synthesis method. Organic ligands and metal ions provided by a transition metal salt aqueous solution are used; the acid-base property of a system is simply adjusted, continuous stirring is carried out at normal temperature, so that the transition metal ions, the organic ligands and a carbon source are promoted to be subjected to a coordination reaction; and simple centrifugal treatment is carried out to obtain a target product. The preparation method provided by the invention has the following advantages that: (1) the raw materials are cheap and easy to obtain, the transition metal-based hybrid material nanotube is synthesized in one step, the cost is low, and the application prospect is good; and (2) the reaction can be carried out at normal temperature, compared with the performance of a traditional solvothermal method, the efficiency of the preparation method is higher, the energy loss of the preparation method is lower, and the repeatability of the preparation method is higher, and the method is more environment-friendly, and a new strategy is provided for the preparation of the transition metal-based hybrid material nanotube.

Description

technical field [0001] The invention relates to the technical field of hybrid materials and nanomaterial synthesis, and more specifically relates to a transition metal-based hybrid material nanotube and its preparation method and application. Background technique [0002] In recent years, hybrid materials have been widely used in energy storage, catalysis, electronics, optics, and sensing due to their mild synthesis methods, controllable nanostructure synthesis, and excellent performance in subsequent applications. Among them, metal-inorganic-organic hybrid materials have also attracted attention in recent years due to their superior electrochemical properties. Because different components are combined to form complex and diverse composite materials, they can be formed with different properties after simple subsequent processing. high-performance materials. [0003] On the other hand, the first report of carbon nanotubes by Iijima's research group in 1991 broke through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/166B01J23/745B01J23/72B01J23/755B01J23/75B01J23/80B01J23/889B01J23/883B01J23/888B01J21/18B01J37/08B01J37/32
CPCC01B32/166B01J23/745B01J23/72B01J23/755B01J23/75B01J23/80B01J23/8892B01J23/883B01J23/888B01J21/185B01J37/084B01J37/086B01J37/32
Inventor 杨勇赵泽军李思佳秦依钒
Owner NORTHWESTERN POLYTECHNICAL UNIV
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