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mos2 nanosheet/graphene composite nanomaterial with holes and preparation method thereof

A composite nanomaterial and graphene composite technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of enhancing electrocatalytic performance, enhancing electrochemical lithium storage performance, and increasing contact area

Inactive Publication Date: 2016-06-29
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 Composite nanomaterials with holes and graphene and their preparation have not been reported yet

Method used

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  • mos2 nanosheet/graphene composite nanomaterial with holes and preparation method thereof
  • mos2 nanosheet/graphene composite nanomaterial with holes and preparation method thereof
  • mos2 nanosheet/graphene composite nanomaterial with holes and preparation method thereof

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Embodiment 1

[0023] 1) Ultrasonic disperse 2.5mmol of graphene oxide in 60mL of deionized water, then add 0.16mmol of cationic column[5]arene supermolecule, and stir well;

[0024] 2) Then add 0.76g (6.25mmol) L-cysteine ​​and 0.3g (1.25mmol) 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;

[0025] 3) Transfer the obtained mixed solution into a 100mL hydrothermal reaction kettle, put the reaction kettle into a constant temperature oven, and after hydrothermal reaction at 240°C for 24 hours, let it cool down to room temperature naturally, and collect the solid product by centrifugation. And fully washed with deionized water, vacuum dried at 100 ° C;

[0026] 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 was 10%, to prepare MoS 2 Composite nanomaterials w...

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Abstract

The invention discloses a MoS2 perforated nanosheet / graphene composite nanomaterial and a preparation method thereof. The MoS2 perforated nanosheet / graphene composite nanomaterial is composited by a single layer or a few layers of MoS2 perforated nanosheets and graphene, and a substance ratio of MoS2 to graphene is (1:1)-(1:3). The preparation method of the MoS2 perforated nanosheet / graphene composite nanomaterial comprises the steps as follows: graphene oxide is ultrasonically dispersed in deionized water firstly, added with cationoid pillar [5] arene supermolecules, sufficiently stirred and then sequentially added with L-cysteine and sodium molybdate, and L-cysteine and sodium molybdate are sufficiently stirred and dissolved; and the hybrid dispersion is transferred to a hydrothermal reaction kettle to have a hydrothermal reaction for 20-24 hours at the temperature of 230-250 DEG C and is naturally cooled to the room temperature and solid products are collected centrifugally, sufficiently washed by deionized water, dried and subjected to thermal treatment in nitrogen / hydrogen atmosphere to prepare the MoS2 perforated nanosheet / graphene composite nanomaterial. The method has the advantages of simplicity and convenience.

Description

technical field [0001] The present invention relates to composite nanomaterials and preparation methods thereof, in particular to MoS 2 The invention relates to a nanosheet / graphene composite nanomaterial with holes and a hydrothermal preparation method thereof, belonging 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 porous 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 mic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/58B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/366H01M4/5815H01M4/625H01M2004/021Y02E60/10
Inventor 陈卫祥叶剑波马琳马英杰
Owner ZHEJIANG UNIV
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