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a mos 2 Nanowatt/graphene composite nanomaterial and preparation method thereof

A composite nanomaterial and graphene composite technology, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of strong hydrophobicity and strong electrostatic interaction

Inactive Publication Date: 2016-08-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, so far, MoS 2 Nanowatt / graphene composite nanomaterials and their preparation have not been reported yet

Method used

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  • a mos <sub>2</sub> Nanowatt/graphene composite nanomaterial and preparation method thereof
  • a mos <sub>2</sub> Nanowatt/graphene composite nanomaterial and preparation method thereof
  • a mos <sub>2</sub> Nanowatt/graphene composite nanomaterial and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Ultrasonically disperse 2.5 mmol of graphene oxide in 60 mL of deionized water, then add 0.8 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;

[0027] 2) Then add 0.76 g (6.25 mmol) L-cysteine ​​and 0.3 g (1.25 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine ​​and sodium molybdate, adjust the volume to about 80mL with deionized water;

[0028] 3) Transfer the obtained mixed solution to a 100 mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 230 °C for 24 h, let it cool down to room temperature naturally, and collect the solid by centrifugation The product was washed thoroughly with deionized water and dried under vacuum at 100°C;

[0029] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere, and the volume fraction of hydrogen in the mixed gas ...

Embodiment 2

[0037] 1) Ultrasonically disperse 2.5 mmol of graphene oxide in 60 mL of deionized water, then add 0.8 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;

[0038] 2) Then add 1.50g (12.5 mmol) L-cysteine ​​and 0.6 g (2.5 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine ​​and sodium molybdate, adjust the volume to about 80mL with deionized water;

[0039] 3) Transfer the obtained mixture to a 100 mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 220 °C for 24 h, let it cool down to room temperature naturally, and collect the solid by centrifugation The product was washed thoroughly with deionized water and dried under vacuum at 100°C;

[0040] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere to prepare MoS 2 Nanowatt / graphene composite nanomaterial, t...

Embodiment 3

[0043] 1) Ultrasonically disperse 3.75 mmol of graphene oxide in 60 mL of deionized water, then add 1.2 mmol of gemini surfactant N-dodecylpropylenediamine diammonium bromide, and stir thoroughly;

[0044] 2) Then add 0.76g (6.25 mmol) L-cysteine ​​and 0.3 g (1.25 mmol) sodium molybdate (Na 2 MoO 4 2H 2 O), and keep stirring to completely dissolve L-cysteine ​​and sodium molybdate, adjust the volume to about 80mL with deionized water;

[0045] 3) Transfer the obtained mixed solution to a 100 mL hydrothermal reaction kettle, and add deionized water to adjust the volume to 80 mL, put the reaction kettle in a constant temperature oven, and react hydrothermally at 240 °C for 24 h, let It was naturally cooled to room temperature, and the solid product was collected by centrifugation, washed thoroughly with deionized water, and dried under vacuum at 100°C;

[0046] 4) The solid product obtained above was heat-treated at 800 °C for 2 h in a nitrogen / hydrogen mixed atmosphere to pr...

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Abstract

The invention discloses a MoS2 nanotile and graphene composite nanomaterial and a preparation method thereof. The composite nanomaterial is formed by compounding graphene and a MoS2 nanotile with few layers and a lamellar layer, wherein the MoS2 nanotile mainly has 3-6 layers, and the mass ratio of the MoS2 nanotile to the graphene ranges from 1 to 1-1 to 4. The preparation method comprises the following steps of firstly, ultrasonically dispersing graphene oxide into deionized water; then, adding a gemini surfactant, and sufficiently stirring; next, sequentially adding L-cysteine and sodium molybdate, and sufficiently stirring to dissolve L-cysteine and sodium molybdate; and transferring the mixed dispersion system into a hydrothermal reaction kettle to carry out hydrothermal reaction at the temperature of 230-250 DEG C for 20-24h, then, naturally cooling to the room temperature, centrifuging to collect a solid hydrothermal product, washing, drying and carrying out heat treatment to obtain the MoS2 nanotile and graphene composite nanomaterial. The method disclosed by the invention has the advantages of simplicity, convenience and easiness for industrial expanded application.

Description

technical field [0001] The present invention relates to composite nanomaterials and preparation methods thereof, in particular to MoS 2 A nanowatt / graphene composite nanomaterial and a hydrothermal preparation method thereof belong to the technical field of inorganic composite nanomaterials. Background technique [0002] Two-dimensional nanomaterials have many excellent properties due to their unique morphology, and their research has aroused great interest. Graphene is the most typical two-dimensional nanomaterial. Its unique two-dimensional nanosheet structure gives it many unique physical, chemical and mechanical properties. It has important scientific research significance and broad technical application prospects. Graphene has extremely high specific surface area, high electrical and thermal conductivity, high charge mobility, and excellent mechanical properties. These excellent properties make graphene widely used in micro-nano electronic devices, energy storage mater...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/38H01M4/60H01M4/58
CPCB82Y30/00H01M4/366H01M4/5815H01M4/625Y02E60/10
Inventor 陈卫祥马琳黄国创王臻叶剑波
Owner ZHEJIANG UNIV
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