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Application of bismuth telluride nanosheet loaded with cobalt-nickel-molybdenum particles in field of oxygen reduction

A technology of bismuth telluride and nanosheets is applied in the field of bismuth telluride nanosheets loaded with cobalt, nickel and molybdenum particles and its synthesis, which can solve the problems of high price and limited application, and achieves simple operation, shortened reaction time, and solves particle agglomeration. Effect

Inactive Publication Date: 2018-06-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 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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  • Application of bismuth telluride nanosheet loaded with cobalt-nickel-molybdenum particles in field of oxygen reduction
  • Application of bismuth telluride nanosheet loaded with cobalt-nickel-molybdenum particles in field of oxygen reduction
  • Application of bismuth telluride nanosheet loaded with cobalt-nickel-molybdenum particles in field of oxygen reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 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.

[0024] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0025] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0026] 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

[0029] 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.

[0030] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0031] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0032] 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

[0035] 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.

[0036] Transfer the above to a polytetrafluoroethylene high-temperature reactor, and keep the temperature at 220° C. for 36 hours.

[0037] The samples were taken out, washed by centrifugation with deionized water and absolute ethanol three times, and then dried for use.

[0038]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 o...

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Abstract

The invention discloses application of a bismuth telluride nanosheet loaded with cobalt-nickel-molybdenum particles in the field of oxygen reduction. According to the application, a solvothermal method is utilized, the hexagonal bismuth telluride nanosheet is prepared by controlling the temperature, loading of the cobalt-nickel-molybdenum particles is carried out on the bismuth telluride nanosheetby utilizing a direct reduction method, the bismuth telluride nanosheet is in a hexagonal shape, and the cobalt-nickel-molybdenum particles are uniformly distributed on the surface of the bismuth telluride nanosheet. The application has the advantages that the cost is low, operation is simple and convenient, pollution is low, the method is an efficient and economic synthesis method, the materialparticles are more uniform in distribution, the specific surface area is large, and the oxygen evolution performance is higher.

Description

[0001] The application of the present invention is a divisional application of the parent application "a bismuth telluride nanosheet loaded with cobalt nickel molybdenum particles and its synthesis method". The application date of the parent application is April 8, 2015, and the application number is 2015101633218. technical field [0002] 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 [0003] 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 graph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/02C25B11/06B22F9/24C01B19/04B82Y40/00
Inventor 梁砚琴尹凯崔振铎杨贤金朱胜利李朝阳
Owner TIANJIN UNIV
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