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Smelting method and patterning method of nano metal particles

A technology of nano-metal particles and smelting methods, which is applied in the direction of nanotechnology, nanotechnology, metal material coating technology, etc., and can solve problems such as inability to adapt, micron or nanoscale, and complex preparation processes

Active Publication Date: 2019-06-14
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former can prepare ordered self-assembled structures of nano-metal particles at the micro-nano scale, and the pattern obtained depends on factors such as synthesis conditions and ligands, and pattern regulation is extremely difficult, and it is difficult to design and obtain arbitrary patterns, and the pattern size is often in the range of Micron or nanoscale, cannot adapt to large-scale, large-scale production needs
The latter is a technology based on modern photolithography. It is necessary to graft photosensitive organic ligands on nano metal particles in advance, and finally obtain the required pattern by exposure and development. The formation of the pattern is also highly dependent on the required mask. Preparation The process is complex and expensive
In addition, due to the high activity of nano-metal particles, the air stability is poor, especially for non-precious nano-metal particles, which are easily oxidized in the air.
At present, there is no relevant technology and report that can obtain high-quality nano-metal particles and their patterns in the next step in the air environment

Method used

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  • Smelting method and patterning method of nano metal particles
  • Smelting method and patterning method of nano metal particles
  • Smelting method and patterning method of nano metal particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A nano metal particle smelting device: composed of a laser, a metal-organic compound 5, a vibrating mirror 2 and a concentrating mirror 3;

[0057] Laser: emit light beam 1 as a light source to provide localized efficient heating and reduction heat source; other light sources can also be used;

[0058] Metal-organic compound 5: as a metal source for smelting nano-metal particles and as a reducing agent for the reduction of metals;

[0059] Substrate 4: used to carry the metal-organic compound 5, and provide a carrier for the deposition of the prepared nano-metal particles or the pattern 6 of the nano-metal particles;

[0060] Vibrating mirror 2: It can precisely control the direction of the beam 1 to realize the precise deposition of nano-metal particles during the laser scanning process; the vibrating mirror 2 includes various automatic or manual optical lenses that can deflect the laser or other parallel beams and One or a combination of several lens groups; the vibr...

Embodiment 2

[0063] The metal organic framework compound HKUST-1 micron crystal powder containing Cu2+ was prepared by solvothermal method. After the impurities were removed by solvent washing, the solvent in the channels of HKUST-1 was removed by heating to obtain a dry HKUST-1 powder sample. X-ray powder diffraction demonstrated that the obtained HKSUT-1 crystal powder diffraction peaks perfectly matched their simulated diffraction peaks, thus demonstrating the pure phase of the obtained MOFs.

[0064] The obtained HKUST-1 powder is uniformly filled in a metal foil with a circular cavity, the thickness of the metal foil is 10 μm, and the diameter of the cavity is 16 mm, and 8 mg of HKUST-1 powder is evenly pressed with two glass sheets Between two glass sheets, both ends of the glass sheet are fixed with adhesive tape to form a sample of a sandwich structure.

[0065]The HKUST-1 powder layer sample prepared above was placed on the sample stage for irradiation scanning with a nanosecond p...

Embodiment 3

[0068] Metal-organic framework compound crystal powders containing Bi3+, Cd2+, Zn2+, Pb3+, In3+, Fe3+, Co2+ and Ni2+ were prepared by solvothermal method. After the impurities were removed by solvent washing, the solvent in the powder was removed by heating to obtain a dry powder sample. The crystal powder diffraction peaks obtained by X-ray powder diffraction were matched with the simulated diffraction peaks corresponding to the respective crystal models, and it was verified that the metal organic framework compound obtained was a pure phase.

[0069] Fill the obtained metal organic framework material powder in a metal foil with a circular cavity according to the method in Example 2, the thickness of the metal foil is 10 μm, and the diameter of the cavity is 16 mm, and 8 mg of Metal-organic framework compound powder is evenly pressed between two glass sheets, and the two ends of the glass sheets are fixed with adhesive tape to form a sample with a sandwich structure.

[0070]...

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Abstract

The invention belongs to the field of nano metal particles materials and devices thereof, particularly relates to a smelting method and a patterning method of nano metal particles. The smelting methodof the nano metal particles include the following steps that (A1) metal organic compounds uniformly cover the surface of a substrate to form a metal organic compound layer; and (A2) the metal organiccompound layer is irradiated by light sources, and the nano metal particles deposited on the substrate are prepared. The smelting method of the nano metal particles has the advantages of being low incost and high in producing efficiency; the nano metal particles produced by the smelting method is adjustable in particle size and particle space and good in chemical stability in air; and the patterning method of the nano metal particles has the advantages that the producing cost is low, the producing efficiency is high, the produced nano metal particles are good in stability, patterns can be customized randomly and the like, and the patterning method of the nano metal particles is more suitable for the next generation of large-scale producing of micro-electronic devices, sensors, optoelectronic devices and the like based on the nano metal particles.

Description

technical field [0001] The invention belongs to the field of nanometer metal particle materials and device preparation thereof, and in particular relates to a method for smelting nanometer metal particles and a patterning method thereof. Background technique [0002] Metal smelting has played a pivotal role in the development of human civilization. Traditional metal smelting processes produce ton-scale metal products, often of enormous size. Nano-metal particles are nano-sized (<200nm) metal materials. Due to their large surface-to-volume ratio, they have broad application prospects in the fields of energy, catalysis, and optoelectronic materials [Science 2016, 352, 1565-1569. ]. The traditional metal smelting process cannot prepare nano metal particles. At present, the synthesis of nano-metal particle materials is mainly based on bottom-up "wet-chemistry" and top-down physical fragmentation methods. In the wet chemical method, the metal salt is dissolved in the solve...

Claims

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Application Information

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IPC IPC(8): B22F9/30B22F1/00C23C16/18C23C16/48B82Y30/00B82Y40/00
Inventor 邓鹤翔江浩庆程佳瑞
Owner WUHAN UNIV
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