Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of modified silver nanotube, ag-ag2se composite nanotube and preparation method thereof

A technology of ag-ag2se and nanotubes, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of difficult control, complicated preparation and release process, etc., and achieve low phase transition temperature, Good application potential, promising effect

Active Publication Date: 2018-04-10
UNIV OF SCI & TECH OF CHINA
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But CSe 2 The preparation and release process are complex and difficult to control, CSe 2 Steam should be prepared by thermally decomposing AgNCSe at 250-300°C, CSe 2 The release of Se sources requires sustained light induction

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of modified silver nanotube, ag-ag2se composite nanotube and preparation method thereof
  • A kind of modified silver nanotube, ag-ag2se composite nanotube and preparation method thereof
  • A kind of modified silver nanotube, ag-ag2se composite nanotube and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0048] The present invention also provides a kind of Ag-Ag described in the above technical scheme 2 The preparation method of Se composite nanotube, comprises the following steps:

[0049] Under stirring conditions, Ag nanowires, ZnSe-Amine organic-inorganic hybrid nanomaterials and acid solution are mixed and reacted to obtain Ag-Ag 2 Se composite nanotubes.

[0050] In the present invention, the Ag nanowires serve as templates. The present invention has no special limitation on the source of the Ag nanowires, and the Ag nanowires well-known to those skilled in the art can be used. Technical proposals are self-prepared. In the present invention, Ag nanowires are preferably prepared according to the synthesis method reported in literature (Advanced Materials, 2011, volume 23, pages 3052-3056).

[0051] The present invention has no special limitation on the type and source of the ZnSe-Amine organic-inorganic hybrid nanomaterial, and the ZnSe-Amine organic-inorganic hybrid ...

Embodiment 1

[0059] According to this embodiment figure 1 The route shown to prepare Ag-Ag 2 Se composite nanotubes, figure 1 The reaction schematic diagram of the preparation method provided by the present invention:

[0060] In Example 1, Ag nanowires were prepared according to the synthesis method reported in the literature (Advanced Materials, 2011, Volume 23, Pages 3052-3056);

[0061] The obtained solid product sample Ag nanowires were characterized by JEOL JEM-2011 transmission electron microscope (TEM), Shimadzu UV-240 ultraviolet absorption spectrometer, and PW1710 X-ray diffractometer (XRD).

[0062] figure 2 The transmission electron microscope TEM picture of the Ag nanowire prepared for Example 1 of the present invention, from figure 2 It can be seen that the statistical diameter of the Ag nanowire is 55nm; image 3 The ultraviolet-visible light (UV-vis) absorption spectrum of Ag nanowire and Ag-AgSe composite nanotube prepared for the embodiment of the present invention...

Embodiment 2

[0073] Synthesis of Ag-Ag Using Nitric Acidified Slow-release Se Source 2 Se composite nanotubes:

[0074] In 40mL deionized water, add 0.075mmol [ZnSe](DETA) 0.5 Nanosheets, stirred evenly by magnetic force, added 24mg of Ag nanowires according to the ratio of atomic molar ratio Ag:Se=3:1, after stirring evenly, added 0.2mL nitric acid, the mass fraction of nitric acid was 69%, and reacted for 6 days. Carry out at room temperature, maintain strong and continuous (>700rpm) magnetic stirring to obtain Ag-Ag 2 Se composite nanotube; the Ag-Ag 2 The middle of the Se composite nanotube is hollow, the inner layer is Ag nanotube and the outer layer composited on the surface of the inner layer is Ag 2 Se layer.

[0075] The present invention respectively adopts JEOL JEM-2011 transmission electron microscope (TEM, HRTEM, EDS), PW1710X-ray diffractometer (XRD) to the obtained solid product sample Ag-Ag 2 Se composite nanotubes were characterized.

[0076] Figure 9 The 100000-fo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a modified silver nanotube, a preparation method for the modified silver nanotube, an Ag-Ag2Se composite nanotube and a preparation method for the Ag-Ag2Se composite nanotube. The Ag-Ag2Se composite nanotube comprises an Ag nanotube body and an Ag2Se layer compounded on the surface of the Ag nanotube body. The modified silver nanotube and the Ag-Ag2Se composite nanotube have a wide ultraviolet-visible absorption spectrum range, so that the nanotubes utilize much solar light and have good utilization potentiality to photocatalysis and photovoltaic conversion. Besides, the phase inversion temperature of the Ag-Ag2Se composite nanotube is low relatively, so that the nanotube has wide application prospects on the aspect of phase change memory under mild conditions. Experimental results show that the Ag-Ag2Se composite nanotube has high absorption capacity in the wave length interval from 200 nm to 800 nm; and the phase-transition temperature for heating is near 100 DEG C while the phase-transition temperature for annealing is near 90 DEG C.

Description

technical field [0001] The invention relates to the technical field of nanomaterial synthesis, in particular to a modified silver nanotube, Ag-Ag 2 Se composite nanotube and its preparation method. Background technique [0002] Germany "Advanced Materials" (Advanced Materials, 2011, volume 23, pages 3052-3056) reported a large-scale preparation of Ag nanowires using a modified polyol reduction system, and the prepared Ag nanowires were used as recyclable materials. And foldable electronic devices. [0003] Se is a very good template material in the field of nanomaterial synthesis technology. "Advanced Materials" (Advanced Materials, 2002, volume 14, page 1749) reported a method for the synthesis and crystallization of Se elemental nanoparticles into nanowires. "Materials Chemical Impurities" (Journal of Materials Chemistry, 2006, volume 16, pages 3893-3897) summarizes the synthesis technology of selenide nanomaterials using Se simple nanomaterials as templates. Selenide ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F9/24B82Y40/00B82Y30/00
Inventor 俞书宏胡增文徐亮王智华
Owner UNIV OF SCI & TECH OF CHINA