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Process for preparing controllable hollow nanometer gold ball based on polymeric vesicle mold plates

A hollow nano, polymeric technology, which is applied in the preparation of microspheres, the method of granulating raw materials, and the preparation of microcapsules, can solve the problems of poor stability and high cost of non-polymeric vesicle templates, and achieve the surface coating rate. Good controllability, simple preparation and high stability

Inactive Publication Date: 2006-02-08
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to avoid the high cost and complicated preparation process caused by the dissolution template in the traditional preparation method, and at the same time overcome the disadvantage of poor stability of the non-polymeric vesicle template, and provide a polymeric vesicle template based on covalent bond formation A method for preparing controllable hollow nano-gold spheres, which has the advantages of simple preparation and low cost

Method used

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  • Process for preparing controllable hollow nanometer gold ball based on polymeric vesicle mold plates
  • Process for preparing controllable hollow nanometer gold ball based on polymeric vesicle mold plates
  • Process for preparing controllable hollow nanometer gold ball based on polymeric vesicle mold plates

Examples

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Embodiment 1

[0018] (1) Synthesis of lipid monomers: according to the literature "German Applied Chemistry" magazine, 2003, vol. 42, page 3264 (I.Gill et al., Angew.Chem.Int.Ed.2003, vol. 42, page 3264), 10 mL, 2.4 mM C 6 h 11 N=C=NC 6 h 11 A solution of dichloromethane was added to 10 mL of 2.45 mM 10,12-pentacosyldiynoic acid [CH 3 -(CH 2 ) n -C≡C-C≡C-(CH 2 ) l -COOH wherein l=8, n=11] in the dichloromethane solution, the mixed solution was placed in a dark room and stirred (300 rpm) at room temperature to react for 1 hour, and then the mixed solution was added dropwise in 20 minutes Add it to 10 mL, 4 mM ethylenediamine in dichloromethane solution and continue to stir (300 rpm) to react for 1 hour. The reacted solution was diluted with 20 mL of petroleum ether and filtered, the filtrate was evaporated to dryness with a rotary evaporator, and the dried product was purified with a silica gel column (Kieselgel 60, the solvent was chloroform-methanol with a volume ratio of 5:1) to o...

Embodiment 2

[0022] (1) Synthesis of lipid monomers: according to the literature "German Applied Chemistry" magazine, 2003, vol. 42, page 3264 (I.Gill et al., Angew.Chem.Int.Ed.2003, vol. 42, page 3264), 10 mL, 2.4 mM C 6 h 11 N=C=NC 6 h 11 A solution of dichloromethane was added to 10 mL of 2.45 mM 10,12-tricosyldiynoic acid [CH 3 -(CH 2 ) n -C≡C-C≡C-(CH 2 ) l -COOH wherein l=8, n=9] in dichloromethane solution, the mixed solution was placed in a dark room and stirred (300 rpm) at room temperature to react for 1 hour, then the mixed solution was added dropwise in 20 minutes Add it to 10 mL, 4 mM ethylenediamine in dichloromethane solution and continue to stir (300 rpm) to react for 1 hour. The reacted solution was diluted with 20 mL of petroleum ether and filtered, the filtrate was evaporated to dryness with a rotary evaporator, and the dried product was purified with a silica gel column (Kieselgel 60, the solvent was chloroform-methanol with a volume ratio of 5:1) to obtain Lipi...

Embodiment 3

[0026] (1) Synthesis of lipid monomers: according to the literature "German Applied Chemistry" magazine, 2003, vol. 42, page 3264 (I.Gill et al., Angew.Chem.Int.Ed.2003, vol. 42, page 3264), 10 mL, 2.4 mM C 6 h 11 N=C=NC 6 h 11 A solution of dichloromethane was added to 10 mL of 2.45 mM 2,4-tricosyldiynoic acid [CH 3 -(CH 2 ) n -C≡C-C≡C-(CH 2 ) l -COOH wherein l=0, n=17] in the dichloromethane solution, the mixed solution was placed in a dark room and stirred (300 rpm) at room temperature to react for 1 hour, then the mixed solution was added dropwise in 20 minutes Add to 10 mL, 4 mM dichloromethane solution of hexamethylenediamine and continue to stir (300 rpm) to react for 1 hour. The reacted solution was diluted with 20 mL of petroleum ether and filtered, the filtrate was evaporated to dryness with a rotary evaporator, and the dried product was purified with a silica gel column (Kieselgel 60, the solvent was chloroform-methanol with a volume ratio of 5:1) to obtain ...

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Abstract

The invention discloses a method of preparing controlled hollow gold nanoball based on synangium mold plates. The invention comprises the following steps: mixing nano-gold solution with acetylene polymer vesicle; shaking, stewing and centrifuging it; removing upper solution; adding deionized water to the bottom; scattering solution at the bottom by supersound and repeating said centrifuging and scattering courses to get hollow gold nanoball. Further more said gold nanoball is added into aqueous solution containing HAuCl4.4H2O and NH2OH.HCl under the condition of stirring and is subject to centrifuging and scattering courses. The invention has the advantages of preparing simplicity, low cost, high stability, good controllability of surface coverage and so on, so can be used in domains such as adsorption and catalysis.

Description

technical field [0001] The invention relates to a method for preparing controllable hollow nano-gold spheres based on polymerized vesicle templates. Background technique [0002] It is known that hollow nano-gold spheres are widely used in adsorption and catalysis because of their light weight, high specific surface area, and low cost, which are different from bulk metals. [0003] The traditional methods of preparing hollow gold nanospheres mostly use resin microspheres as templates, chemically modify the surface of the templates, modify functional groups with the ability to adsorb gold sols, and then adsorb nano-gold particles to adsorb on the templates. The nano-gold particles are continuously amplified as seeds to produce nano-gold spheres with different surface coverages. Finally, the central resin template is dissolved by chemical corrosion and other methods to form hollow nano-gold spheres. For a typical preparation example, see "Chemical Materials" 2003, Vol. 15, p....

Claims

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Application Information

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IPC IPC(8): B01J13/02B01J2/00
Inventor 江龙鲁闻生苏延磊
Owner INST OF CHEM CHINESE ACAD OF SCI
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