Method for preparing rhenium disulfide nanosheets

A technology of rhenium disulfide and nanosheets, applied in chemical instruments and methods, rhenium compounds, inorganic chemistry, etc., can solve problems such as high reaction temperature, complex control conditions, and danger, and achieve simple operation process, good repeatability, low cost effect

Inactive Publication Date: 2017-01-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

[0004] At present, the synthesis method of rhenium disulfide nanosheets has the following reports: T.Fujita et al. in the literature titled "Chemically exfoliated ReS 2 nanosheets" ("ReS prepared by chemical exfoliation method 2 Nanosheets") were prepared by chemical exfoliation technology rhenium disulfide nanosheets, this method needs to be carried out in an inert gas protection environment, and the lithium compound used is flammable in the air, which brings inconvenience and danger to the operation
N.Al-Dulaimi etc. in literature titled "Sequential bottom-up and top-down processing for the synthesis of transitionmetal dichalcogenide nanosheets: the case of rhenium disulfide (ReS 2 )" ("Sequential bottom-up and top-down processing to synthesize transition metal dichalcogenide nanosheets: rhenium disulfide (ReS 2 )...

Method used

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  • Method for preparing rhenium disulfide nanosheets
  • Method for preparing rhenium disulfide nanosheets
  • Method for preparing rhenium disulfide nanosheets

Examples

Experimental program
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Embodiment 1

[0018] Take by weighing 0.5360 gram of ammonium perrhenate, 0.4170 gram of hydroxylamine hydrochloride and 0.6850 gram of thiourea and be dissolved in 60 milliliters of water and stir for 30 minutes, and the concentration of ammonium perrhenate, hydroxylamine hydrochloride and thiourea total substance is 0.28mol / L. Mixed solution; transfer the mixed solution to a 100 ml hydrothermal reactor liner, then put the hydrothermal reactor into an oven with a temperature of 240°C, and keep it warm for 24 hours to maintain the chemical reaction; after the reaction, Stop heating in the oven, take out the hydrothermal reaction kettle and cool it down to room temperature, then clean the product in the hydrothermal reaction kettle with water and alcohol, and dry it at 60°C to finally prepare rhenium disulfide nanosheets.

[0019] figure 1 For the X-ray diffraction pattern of the rhenium disulfide nanosheets prepared in this embodiment, from figure 1 It can be seen that the final synthesize...

Embodiment 2

[0021] Take by weighing 0.5360 gram of ammonium perrhenate, 0.1040 gram of hydroxylamine hydrochloride and 0.3045 gram of thiourea were dissolved in 60 milliliters of water and stirred for 30 minutes, and the amount concentration of ammonium perrhenate, hydroxylamine hydrochloride, and thiourea total substance was obtained as 0.13mol / L Mixed solution; transfer the mixed solution to a 100 ml hydrothermal reactor liner, then put the hydrothermal reactor into an oven with a temperature of 240°C and keep it warm for 6 hours to maintain the chemical reaction; after the reaction, Stop heating in the oven, take out the hydrothermal reaction kettle and cool it down to room temperature, then clean the product in the hydrothermal reaction kettle with water and alcohol, and dry it at 60°C to finally prepare rhenium disulfide nanosheets.

[0022] figure 2 The Raman spectrogram of the rhenium disulfide nanosheet prepared for this embodiment, from figure 2 It can be seen in the 161.7cm ...

Embodiment 3

[0024] Take by weighing 0.5360 gram of ammonium perrhenate, 0.6950 gram of hydroxylamine hydrochloride and 0.7612 gram of thiourea and be dissolved in 60 milliliters of water and stir for 30 minutes, and the concentration of ammonium perrhenate, hydroxylamine hydrochloride and thiourea total substance is 0.37mol / L. Mixed solution; transfer the mixed solution to a 100 ml hydrothermal reactor liner, then put the hydrothermal reactor into an oven with a temperature of 160°C, and keep it warm for 24 hours to maintain the chemical reaction; after the reaction, Stop heating in the oven, take out the hydrothermal reaction kettle and cool it down to room temperature, then clean the product in the hydrothermal reaction kettle with water and alcohol, and dry it at 60°C to finally prepare rhenium disulfide nanosheets.

[0025] image 3 The X-ray photoelectron spectrum of rhenium disulfide prepared for the embodiment of the present invention can be seen from figure (a): the 4f valence sta...

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Abstract

The invention discloses a method for preparing rhenium disulfide nanosheets, and belongs to the field of preparation of novel two-dimensional nanomaterials. The method includes the steps that ammonium perrhenate serves as a rhenium source, thiourea serves as a sulfur source, hydroxylamine hydrochloride serves as a reducing agent, the three reactants are dissolved in solvent water, and a chemical reaction is carried out by regulating the reaction temperature and reaction time; then, a product is cleaned and dried; finally, rhenium disulfide nanosheets are synthesized. The method is simple in operation process, high in efficiency, good in repeatability and low in cost, and high-quality rhenium disulfide nanosheets can be papered in a large batch; meanwhile, the method provides a reliable sample preparation method for application of rhenium disulfide nanosheets in electrics and optics.

Description

technical field [0001] The invention belongs to the field of preparation of novel two-dimensional nanometer materials, in particular to a method for preparing rhenium disulfide nanosheets. Background technique [0002] Two-dimensional semiconductor is an emerging electronic material with graphene-like structure, which has excellent electrical, optical, magnetic, mechanical and other properties, and can be applied in different technical fields, so it has become one of the hotspots in the field of material science research today. . Among many two-dimensional semiconductor materials, rhenium (Re) sulfide ReS 2 It is a recently discovered two-dimensional semiconductor material with weak interlayer coupling and a unique twisted 1T structure. The symmetry of the lattice structure is one of the important factors determining the properties of materials. Most of the studied 2D materials have high lattice symmetry and thus exhibit isotropy. Reducing lattice symmetry in transition ...

Claims

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Application Information

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IPC IPC(8): C01G47/00
CPCC01G47/00C01P2002/72C01P2002/82C01P2002/85C01P2004/04
Inventor 陈远富戚飞郑斌杰李萍剑周金浩王新强张万里
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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