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Process for preparing molybdenum trioxide/polyaniline laminated composite material

A molybdenum trioxide and polyaniline layer technology is applied in the field of preparation of molybdenum trioxide/polyaniline layered composite materials, and can solve the problems of complex pollution, impurity of the complex, restriction of reaction conditions and the like, and achieves simple preparation process, Avoid contamination products, low cost effect

Inactive Publication Date: 2008-08-20
南通万宝磁石制造有限公司
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Problems solved by technology

[0007] The above-mentioned methods all need to be carried out in aqueous solution, and there are great restrictions on the reaction conditions; in addition, the above preparation schemes all use FeCl 3 or (NH 4 ) 2 S 2 o 8 As an initiator for oxidative polymerization of aniline, the external reagents can easily pollute the complex during such a process, especially (NH 4 ) 2 S 2 o 8 Ammonium ions often replace aniline and enter the interlayer to occupy interlayer vacancies, resulting in the impurity of the complex.

Method used

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  • Process for preparing molybdenum trioxide/polyaniline laminated composite material
  • Process for preparing molybdenum trioxide/polyaniline laminated composite material

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Embodiment 1

[0027] Embodiment one: raw material is MoO 3 / DDA powder, aniline of analytical grade and anhydrous acetic acid of analytical grade.

[0028] a. Weigh MoO 3 / DDA powder 0.5g and analytical pure aniline 10mL were added to 50mL anhydrous acetic acid at the same time, ultrasonically oscillated to form a uniform suspension;

[0029] b. Seal the above suspension and transfer it to a 70°C water bath, and react at a constant temperature for 7 days to obtain a pink precipitate;

[0030]c. Wash the above pink precipitate twice with absolute ethanol, transfer it to a muffle furnace at room temperature, gradually heat it to 150°C for 5 days, and then cool it slowly to obtain a dark green product with crystal luster, which is polyaniline intercalation Molybdenum trioxide complex.

[0031] The obtained product is characterized by X-ray diffraction, differential thermal analysis, scanning electron microscope scanning and the like. Referring to Figure 1, the position of the 010 diffracti...

Embodiment 2

[0032] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that in step c, the monomer intercalation product is directly placed in a muffle furnace heated to 150° C. for heat treatment, and then cooled rapidly. Please refer to FIG. 4 and FIG. 5 for the X-ray diffraction pattern and the scanning electron microscope image of the molybdenum trioxide / polyaniline layered composite obtained in this embodiment.

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Abstract

The invention relates to a preparation method of a molybdenum trioxide / polyaniline layer-shaped composite material and the method is that: an aniline monomer intercalation molybdenum trioxide composition is synthesized in a waterless acetic acid firstly, and then the molybdenum trioxide / polyaniline layer-shaped composite material can be obtained by triggering the aniline monomer polymerization at 150DEG C. The prepared molybdenum trioxide / polyaniline layer-shaped composite material has regular ordered layered structure, the even layer interval is 1.127nm, and the heat stability is high. The prepared molybdenum trioxide / polyaniline layer-shaped composite material is characterized in that the modified MoO3 of lauryl amine is used as an intermediate, and molybdenum need not to be reduced during the intercalation process; the waterless acetic acid is used as a solvent when the monomer is intercalated, and the whole reaction is carried out in a non-water system; air is used as an initiator during the polymerization stage, and no other impurity ions are introduced, therefore, the products prepared by the preparation method are high in purity, thus improving the product quality.

Description

technical field [0001] The invention relates to a method for preparing a molybdenum trioxide / polyaniline layered composite material. technical background [0002] Inorganic / organic layered composites have attracted extensive attention due to their unique microstructures and their potential applications in chemical sensors, field-effect transistors, and secondary batteries. Due to its unique doping phenomenon, good electrochemical reversibility, chemical stability, easy access to raw materials, and simple synthesis methods, polyaniline has been widely used as an organic guest to intercalate between various inorganic layers in recent years, forming a polyaniline with special properties. layered composite materials. As an important layered transition metal oxide, molybdenum trioxide can be recombined with polyaniline at the molecular level after being inserted into it: on the one hand, the layer barrier effect of inorganic nano-layered materials reduces the interaction between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/02C08K9/04C08K3/22
Inventor 向怡弦董晓雯潘庆谊秦利鹏张娟
Owner 南通万宝磁石制造有限公司
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