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D10 transition metal acetylide two-dimensional nanosheet and preparation method thereof

A transition metal and two-dimensional nanotechnology, applied in the field of nanomaterials, can solve problems such as low output, difficulty in achieving low-cost mass production, and high energy consumption, and achieve good dispersion, large-scale industrial production value, and mass production. Effect

Active Publication Date: 2017-07-07
中科西卡思(苏州)科技发展有限公司
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Problems solved by technology

On the other hand, the method of preparing the above-mentioned two-dimensional nanomaterials is mainly the "top-down" physical or chemical exfoliation method, which has a low yield and usually requires the use of high-energy ultrasound, making most of the widely studied two-dimensional materials The preparation of nanomaterials is only suitable for laboratory research, and it is difficult to achieve low-cost mass production

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  • D10 transition metal acetylide two-dimensional nanosheet and preparation method thereof
  • D10 transition metal acetylide two-dimensional nanosheet and preparation method thereof
  • D10 transition metal acetylide two-dimensional nanosheet and preparation method thereof

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[0026] The invention provides a metal acetylide nanomaterial and a preparation method thereof, the material is d 10 The two-dimensional nanosheets of transition metal alkynides have a single crystal structure, uniform thickness, and good dispersion, and have potential application prospects in the fields of catalysis, optoelectronics, and biology. the d 10 Transition metals include, but are not limited to, Cu, Ag, Hg, Pd. the d 10 Alkyne sources in transition metal acetylides include, but are not limited to, acetylene, propyne, butyne. d 10 The molar ratio of transition metal to alkyne source is 2:1-1:2, preferably 1:1-1:1.2.

[0027] The preparation method of the present invention adopts a "bottom-up" homogeneous growth method. First, configuration d 10 The soluble metal salt solution of transition metal and the alkyne source solution that dissolves chelating agent, wherein, d 10 In the soluble metal salt solution of transition metal, the ratio of soluble metal salt to w...

Embodiment 1

[0035] Weigh 0.02mol of copper nitrate and dissolve it in 100ml of water, and stir well to obtain 0.2M copper ion solution A. Weigh 0.06mol PVP and ultrasonically dissolve it in 100ml ammonia solution containing 0.2mol / L acetylene to form a uniform solution B. Under the stirring condition of solution A, add solution B into the system at a rate of 2 ml / h through a syringe pump, and stir at room temperature for a certain period of time. After the reaction, the product was collected by centrifugal washing, and the obtained two-dimensional copper acetylene nanosheets were sealed and stored in ethanol solution.

[0036] figure 1 It is a digital photo of the copper acetylene two-dimensional nanosheets dispersed in the ethanol solution prepared in Example 1 of the present invention. It can be seen that the brown-red copper acetylene two-dimensional nanosheets prepared in the embodiment of the present invention are well dispersed in the solution. No precipitation.

[0037] figure...

Embodiment 2

[0042] Weigh 0.01mol of silver nitrate and dissolve it in 100ml of water, stir well to obtain 0.1M silver ion solution A. Weigh 0.08mol CTAB and ultrasonically dissolve it in 100ml ammonia solution containing 0.1mol / L butyne to form a uniform solution B. Under the stirring condition of solution A, add solution B into the system at a rate of 2 ml / h through a syringe pump, and stir at room temperature for a certain period of time. After the reaction, the product was collected by centrifugal washing, and the obtained two-dimensional silver butyne nanosheets were sealed and stored in ethanol solution.

[0043] Figure 6 It is a digital photo of the two-dimensional silver butyne nanosheets prepared in Example 2 of the present invention dispersed in ethanol solution. It can be seen that the milky white two-dimensional silver butyne nanosheets prepared in the embodiment of the present invention are well dispersed in the solution .

[0044] Figure 7 It is a TEM image of the two-d...

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Abstract

The invention relates to a d10 transition metal acetylide two-dimensional nanosheet and a preparation method thereof. The d10 transition metal acetylide two-dimensional nanosheet has a monocrystal structure, and the mole ratio of d10 transition metal and alkyne source in the d10 transition metal acetylide is 1: 1-1: 1.2. The d10 transition metal acetylide two-dimensional nanosheet has monocrystal structure, uniform thickness, and good dispersing property. Due to the specific conjugated structure of quasi-graphene, the structure makes that the material has high in-plane carrier concentration, and can be used as promoter for supporting electronic conduction or two-dimensional photoelectricity sensing material; the nanosheet is expected to apply to catalyst, photoelectricity, biology and other domains.

Description

technical field [0001] The present invention relates to a d 10 Transition metal acetylide two-dimensional nanosheet and its preparation method, the d 10 The two-dimensional nanosheet of a transition metal alkyne has a single crystal structure, uniform thickness and good dispersion, has potential application prospects in the fields of catalysis, photoelectricity and biology, and belongs to the technical field of nanomaterials. Background technique [0002] The development of nanoscience and nanotechnology is increasingly affecting the development of modern science and technology, and has a huge impact on people's daily life. Since graphene was successfully prepared experimentally, two-dimensional nanomaterials have attracted extensive research interest. Compared with traditional zero-dimensional nanoparticles and one-dimensional nanowires, two-dimensional planar nanomaterials have better processability and can process various complex structures on them. Therefore, various ...

Claims

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Application Information

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IPC IPC(8): C07F1/08C07F1/10C07F3/10C07F15/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C07F1/00C07F1/08C07F3/10C07F15/006
Inventor 张辰魏晨阳步文博施剑林
Owner 中科西卡思(苏州)科技发展有限公司
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