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Process for preparing silver/polypyrrole composite nano materials

A technology for composite nanomaterials and polypyrrole, which is applied in the field of preparing silver/polypyrrole composite nanomaterials, can solve the problem of high cost, and achieve the effects of low production cost and low reaction environment requirements.

Inactive Publication Date: 2005-06-29
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since this technology uses plasma technology, there are high requirements on the equipment and reaction environment atmosphere when preparing composite materials, and there is a problem of high cost when used in production.

Method used

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  • Process for preparing silver/polypyrrole composite nano materials
  • Process for preparing silver/polypyrrole composite nano materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] As mentioned above, take 360mg of silver nitrate and 0.2ml of pyrrole and dissolve them in 1ml of DMF respectively, then mix them and place them in the dark for reaction. After more than 24 hours of reaction, observe that the color of the solution turns blue, and measure its absorption spectrum at 620nm A strong absorption peak was obtained nearby, indicating the formation of silver / polypyrrole composite sol. figure 1 The absorption spectrum curve and color diagram of the silver / polypyrrole composite sol obtained by femtosecond laser irradiation are given in . The sol is stable for several months when stored in the refrigerator.

Embodiment 2

[0026] As described above, take 360 ​​mg of silver nitrate and 0.2 ml of pyrrole and dissolve them in 1 ml of DMF solution and mix them, and then irradiate them under light sources such as ultra-short pulse lasers such as ultraviolet light or femtosecond laser until the color of the solution turns purple, and then After aging the solution for about 6 hours, a blue sol can be obtained, and its absorption spectrum has an absorption peak near 620 nm. figure 2 The morphology of the silver / polypyrrole composite sol prepared by femtosecond laser irradiation is given, figure 2 a is a FESEM photo enlarged by 10,000×, figure 2 b is a FESEM image enlarged at 100,000×. The sol is stable for several months when stored in the refrigerator.

Embodiment 3

[0028] As described above, take 3.6g of silver nitrate and 0.5ml of pyrrole and dissolve them in 1ml of DMF respectively, then mix them and place them under dark conditions for reaction. After about 15 hours, observe that the color of the solution turns blue, and measure its absorption spectrum at A strong absorption peak was obtained near 620nm, indicating the formation of silver / polypyrrole composite sol.

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Abstract

A method for preparing silver / polypyrrole compound nm material includes the following step: (1) dissolve some monomer of pyrrole and silver nitrate in the suitable solvent; (2) mix the silver nitrate solution and pyrrole solution above; (3) place the mixture in darkness and indoor temperature, or under violet ray or super short impulse laser radiation, stop the refrigerator. The method needs no expensive equipment, has fewer requirement to the environment and simpler steps, so that it also has low productive cost.

Description

technical field [0001] The invention relates to silver / polypyrrole composite nanomaterials, in particular to a method for preparing silver / polypyrrole composite nanomaterials. Background technique [0002] Noble metal / conducting polymers have important potential applications in electrocatalysis, chemical sensors, microelectronics, photonics, optoelectronics, and optics, and thus have attracted extensive research. However, previous studies focused on the structure of composite materials, and there were few studies on the properties of composite materials. Although the embedding of precious metal particles such as gold and silver in polymers has enhanced the conductivity of materials to some extent. However, there are few studies on the optical properties of composite materials. In the prior art (A.Helmann, A.Kiesow, M.Gruner, U.Kreibig, Optical and electrical properties of embedded silver nanoparticles at low temperatures, Thin Solid Films 343-344 (1999) 175-178.) adopt plas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00C08K3/08C08L79/00
Inventor 赵崇军赵启涛赵全忠邱建荣陈庆希朱从善
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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