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Two-dimensional multi-shell hollow sphere ordered structure array and preparation method thereof

A technology of ordered structure and hollow sphere, which is applied in the field of two-dimensional multi-shell hollow sphere ordered structure array and its preparation, can solve the problems of inability to obtain hollow spheres, limit superior performance and unique use, and achieve excellent performance, The effect of scientific preparation methods

Inactive Publication Date: 2013-05-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are deficiencies in both the two-dimensional ordered nanostructured metal material and its preparation method. First, the hollow metal spheres that constitute the two-dimensional ordered nanostructured metal material are only single-walled structures, rather than inner and outer walls. Hollow spheres with different structures, which limit its possible superior performance and unique uses; secondly, the preparation method cannot obtain hollow spheres with different structures on the inner and outer walls

Method used

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  • Two-dimensional multi-shell hollow sphere ordered structure array and preparation method thereof
  • Two-dimensional multi-shell hollow sphere ordered structure array and preparation method thereof
  • Two-dimensional multi-shell hollow sphere ordered structure array and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The concrete steps of preparation are:

[0025] Step 1, placing the conductive substrate with a single-layer colloidal crystal template made of polystyrene colloidal spheres with a diameter of 2000nm on it under a pressure of 5Pa, and depositing a layer of gold film with a thickness of 5nm by ion sputtering, get approximate figure 1 The gold film wall array shown; wherein, the conductive substrate is conductive glass.

[0026] Step 2, first place the conductive substrate with the gold film wall array on it in the electrolyte, use it as the working electrode, and deposit it at a current density of -1.0mA / cm 2 Next, the three-electrode method was used for electrodeposition for 10 s to obtain a single-layer composite array; wherein, the electrolyte was a metal gold electrolyte, the counter electrode was a graphite electrode, and the reference electrode was a saturated calomel electrode. Then, the single-layer composite array was placed in the polypyrrole electrolyte, and...

Embodiment 2

[0029] The concrete steps of preparation are:

[0030] Step 1, place the conductive substrate with a single-layer colloidal crystal template composed of polystyrene colloidal spheres with a diameter of 2000nm on it under a pressure of 6.5Pa, and deposit a layer of gold film with a thickness of 8nm by ion sputtering , getting approximately figure 1 The gold film wall array shown; wherein, the conductive substrate is conductive glass.

[0031] Step 2, first place the conductive substrate with the gold film wall array on it in the electrolyte, use it as the working electrode, and deposit it at a current density of -0.4mA / cm 2 Next, the three-electrode method was used for electrodeposition for 200 s to obtain a single-layer composite array; wherein, the electrolyte was a metal gold electrolyte, the counter electrode during the three-electrode deposition was a graphite electrode, and the reference electrode was a saturated calomel electrode. Then, the single-layer composite array...

Embodiment 3

[0034] The concrete steps of preparation are:

[0035] Step 1, placing the conductive substrate with a single-layer colloidal crystal template composed of polystyrene colloidal spheres with a diameter of 2000nm on it under a pressure of 8Pa, and depositing a layer of gold film with a thickness of 10nm by ion sputtering, get as figure 1 The gold film wall array shown; wherein, the conductive substrate is conductive glass.

[0036] Step 2, first place the conductive substrate with the gold film wall array on it in the electrolyte, use it as the working electrode, and deposit it at a current density of -0.025mA / cm 2 The three-electrode method was used to electrodeposit 30 min to obtain a single-layer composite array; wherein, the electrolyte was a metal gold electrolyte, the counter electrode was a graphite electrode during the three-electrode deposition, and the reference electrode was a saturated calomel electrode. Then, the single-layer composite array is placed in different...

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Abstract

The invention discloses a two-dimensional multi-shell hollow sphere ordered structure array and a preparation method thereof. The array is a single-layer hollow sphere array orderly and hexagonally arranged on a conductive substrate, wherein the outer diameter of each hollow sphere is between 230 nanometers and 10.7 mu m; the outer surface of each hollow sphere is a rough surface; each hollow sphere consists of a metal gold inner wall and more than two layers of different materials alternatively covered on the metal gold inner wall; and the rough surface consists of particles. The method comprises the following steps of: performing ion sputtering on the conductive substrate on which a single-layer colloidal crystal template is arranged to deposit a gold film; putting the conductive substrate to which a gold film wall is adhered into an electrolyte; electrically depositing under the deposition current density of between -1.0 mA / cm<2> and 1.0 mA / cm<2> for 10 seconds to 3 hours to obtaina single-layer composite array; putting the single-layer composite array into different electrolytes for more than one time; electrically depositing under the same technological condition; and putting the single-layer composite array into a methylene dichloride solvent to remove polystyrene colloidal spheres to obtain a product. The array and the method can be widely applied to the fields of pharmaceutical engineering, cosmetics, biotechnology, photo-catalysis, photonic devices and the like.

Description

technical field [0001] The invention relates to a hollow sphere ordered structure array and a preparation method thereof, in particular to a two-dimensional multi-shell hollow sphere ordered structure array and a preparation method thereof. Background technique [0002] Hollow sphere structures, such as carriers and inner containers, micro-reaction chambers, etc., have attracted widespread attention due to their special structure and surface properties, and they are of great importance in pharmaceutical engineering, cosmetics, biotechnology, photocatalysis and photonic devices. application value. The application of hollow spheres is related to its material type and structure size, and is also closely related to the fine structure of the spherical shell. Hierarchically structured hollow spheres, whose shells are composed of nanoscale small units, will play an important role in the construction of nanomaterial devices. Recently, the synthesis of hierarchical structure system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B82B1/00B81B7/04B82B3/00B81C1/00
Inventor 段国韬罗媛媛刘广强吕方景蔡伟平
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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