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One-step-method preparation technology of high-crystallinity rhenium disulfide circular nanocrystal

A technology of rhenium disulfide and nanocrystals, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., to achieve the effect of uniform size, small size and good dispersion

Inactive Publication Date: 2019-08-13
YUNNAN NORMAL UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nevertheless, strict control of ReS 2 Nanocrystal thickness and lateral dimensions to achieve ReS 2 The controllable preparation of circular nanocrystals still faces great challenges

Method used

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  • One-step-method preparation technology of high-crystallinity rhenium disulfide circular nanocrystal
  • One-step-method preparation technology of high-crystallinity rhenium disulfide circular nanocrystal
  • One-step-method preparation technology of high-crystallinity rhenium disulfide circular nanocrystal

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: Take 0.5 gram of ReS with balance 2 Put the solid powder in an agate mortar and grind it fully for about 1.5 hours, then transfer the ground powder to a beaker, add 50 ml of 1-methyl-2-pyrrolidone (NMP) solvent to it, mix and seal it, and the obtained mixture Ultrasound for 4 hours. Take the ultrasonic solution and place it in a centrifuge for 25 minutes at a speed of 5000 rpm. After centrifugation, take the upper layer of the clear solution to obtain ReS 2 round nanocrystals.

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Abstract

Disclosed is a one-step-method preparation technology of a high-crystallinity rhenium disulfide circular nanocrystal. The technology is characterized in that the ReS2 circular nanocrystal with good dispersibility, a small size, high crystallinity and fluorescence characteristics is prepared by means of a one-step method. For the current situations that there are few current researches on the new two-dimensional material rhenium disulfide nanocrystal, the requirement for process equipment is high, and the operation procedures are complicated, the ReS2 circular nanocrystal is prepared by means of the one-step method, the product has absorption peaks of 288 nm and 376 nm in an ultraviolet-visible light spectrum, and it is indicated according to an absorption value that the band gap of the product is adjustable; a high-resolution transmission electron micrograph shows that the lattice spacing of the ReS2 circular nanocrystal is 0.273 nm and the average particle diameter of 2.7 nm, which indicates that the one-step-method preparation technology of the ReS2 circular nanocrystal is efficient and feasible; meanwhile, an image also indicates that the ReS2 circular nanocrystal prepared by means of the one-step method has high crystallinity.

Description

technical field [0001] The invention relates to a one-step preparation technology of rhenium disulfide circular nanocrystals, a highly crystalline two-dimensional material, in particular to the preparation of size-controllable rhenium disulfide circular nanocrystals with a simple technique, which promotes its use in materials, energy, The development and application of biology and medicine. Background technique [0002] As an important member of the family of two-dimensional atomic crystal materials, rhenium disulfide (ReS 2 ) has a structure and properties different from traditional two-dimensional materials. The low lattice symmetry endows it with unique two-dimensional in-plane anisotropic optical and electrical properties. It has great potential in field effect transistors, photodetectors and new concept devices. great application value. In addition, ReS 2 Having semiconducting properties and a bandgap suitable for device applications make them promising complements t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G47/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G47/00C01P2002/78C01P2004/04C01P2004/32C01P2004/64
Inventor 李学铭唐利斌周亮亮潘峰杨艳波钱福丽鲁朝宇梁晶
Owner YUNNAN NORMAL UNIV
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