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Bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and synthesis method thereof

A synthesis method, bismuth telluride technology, applied in chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of limited application, high price, etc., achieve shortened reaction time, easy operation, and solution The effect of particle agglomeration

Inactive Publication Date: 2016-11-23
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The known catalytic materials of the anode are mainly some noble metals, but due to the high price, the application in various aspects is limited

Method used

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  • Bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and synthesis method thereof
  • Bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and synthesis method thereof
  • Bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and synthesis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 0.315gBiCl 3 , 0.34gNa 2 TeO 3 , 0.48g PVP (w = 40000), 0.58g NaOH in 36ml ethylene glycol, stirred at room temperature for 2h.

[0023] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0024] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0025] Take 0.07g of dried bismuth telluride nanoplatelets after alkali treatment and put them in the Co-Ni-Mo source mixed solution, the volume ratio of ethylene glycol: water in the mixed solution is 1:1, and the total amount of the solution is 20ml. The concentration of nickel sulfate in the solution is 0.0285M, the concentration of sodium molybdate is 0.00565M, the concentration of cobalt nitrate is 0.000694M, the concentration of trisodium citrate is 0.0249M, the concentration of PVP is 0.0000625M, stir at room temperature for 50min, and then directly Add 0.08...

Embodiment 2

[0028] Take 0.315gBiCl 3 , 0.34gNa 2 TeO 3 , 0.52g PVP (w = 40000), 0.62g NaOH in 36ml ethylene glycol, stirred at room temperature for 2h.

[0029] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0030] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0031] Take 0.07g of dried bismuth telluride nanoplatelets after alkali treatment and put them in the Co-Ni-Mo source mixed solution, the volume ratio of ethylene glycol: water in the mixed solution is 1:1, and the total amount of the solution is 20ml. The concentration of nickel sulfate in the solution is 0.0287M, the concentration of sodium molybdate is 0.00567M, the concentration of cobalt nitrate is 0.00694M, the concentration of trisodium citrate is 0.0251M, the concentration of PVP is 0.0000625M, stir at room temperature for 70min, and then directly Add 0.08g...

Embodiment 3

[0034] Take 0.315gBiCl 3 , 0.34gNa 2 TeO 3 , 0.50g PVP (w = 40000), 0.60g NaOH in 36ml ethylene glycol, stirred at room temperature for 2h.

[0035] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0036] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0037] Take 0.07g of dried bismuth telluride nanoplatelets after alkali treatment and put them in the Co-Ni-Mo source mixed solution, the volume ratio of ethylene glycol: water in the mixed solution is 1:1, and the total amount of the solution is 20ml. The concentration of nickel sulfate in the solution is 0.0286M, the concentration of sodium molybdate is 0.00566M, the concentration of cobalt nitrate is 0.0347M, the concentration of trisodium citrate is 0.0250M, the concentration of PVP is 0.0000625M, stir at room temperature for 60min, and then directly Add 0.08g ...

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Abstract

The invention discloses a bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and a synthesis method thereof. A bismuth telluride nanosheet is in a hexagonal shape. The cobalt nickel molybdenum particles are uniformly distributed on the surface of the bismuth telluride nanosheet. By means of a solvothermal method, the hexagonal bismuth telluride nanosheet is obtained by controlling the temperature, and loading of the cobalt nickel molybdenum particles is performed on the bismuth telluride nanosheet by means of a direct reduction method. The method is low in implementation cost, easy and convenient to implement, low in pollution, efficient and economic, and meanwhile the material particle distribution is more uniform, large in specific surface area and stronger in oxygen evolution performance.

Description

technical field [0001] The invention relates to a novel nanometer material and a synthesis method thereof, in particular to a bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and a synthesis method thereof. Background technique [0002] The known catalytic materials of the anode are mainly some noble metals, but due to the high price, the application in various aspects is limited. The present invention proposes to use Bi 2 Te 3 Semiconductor materials are used as anodes, and there has been no similar research before. This idea mainly considers the following points: (1) Bi 2 Te 3 The crystal structure is very similar to that of graphite, it is easy to dissociate into flakes, the dissociation surface is flat, has a metallic luster, and has good electrical conductivity. It is similar to the free electrons of metal materials, which is conducive to the transfer of electrons (2) Bi 2 Te 3 It has low thermal conductivity and high electrical conductiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/057
Inventor 尹凯梁砚琴崔振铎杨贤金朱胜利李朝阳
Owner TIANJIN UNIV
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