Preparation method and application of polypyrrole nanometer microspheres

A technology of polypyrrole nano- and microspheres, which is applied in the field of green preparation of polypyrrole microspheres, can solve the problems of unsatisfactory nanostructure and performance, and achieve the effect of large-scale commercial production, simple process conditions and uniform size

Active Publication Date: 2015-02-25
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the preparation method of the conductive polymer of nanostructure, the attempt of adopting mild green oxidant has been in progress, H.V.R.Dias et al. have prepared polyaniline (H.V.R.Dias, X.Y.Wang, R.M.G.Rajapakse) of nanostructure by using acetic acid / noble metal as oxidant and R.L.Elsenbaumer, Chem.Commun., 2006, 976.), S.P.Surwade et al. adopt HCl / NaCl / H 2 o 2 System prepared polyaniline oligomers and nanofibers (S.P.Surwade, S.R.Agnihotra, V.Dua, N.Manohar, S.Jain, S.Ammu and S.K.Manohar, J.Am.Chem.Soc., 2009, 131, 12528.), SP. Palaniappan et al. use K 2 S 2 o 8 Polypyrrole microspheres were synthesized as an oxidant (SP.Palaniappan, P.Manisankar, Mater.Chem.Phys., 2010, 122, 15.), but some of the above synthetic routes failed to meet the requirements of green synthesis, and some obtained The nanostructure and properties of the product are not ideal

Method used

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  • Preparation method and application of polypyrrole nanometer microspheres

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Experimental program
Comparison scheme
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Embodiment 1

[0020] Measure 0.5ml of pyrrole monomer and put it in a 100ml round bottom flask, then add 50ml of H 2 O, and then add 0.05g FeCl to it 2 , after stirring evenly by magnetic force, add 4ml H 2 o 2 , and the reaction was stirred at 25°C for 24 hours. After the reaction is finished, wash and filter with acetone, and then dry in a vacuum oven at 60° C. for 24 hours to obtain polypyrrole powder.

Embodiment 2

[0022] Measure 1ml of pyrrole monomer and put it in a 250ml round bottom flask, then add 80ml of H 2 O, and then add 0.05g FeCl to it 2 , after stirring evenly by magnetic force, add 8ml H 2 o 2 , Stir the reaction at -5°C for 36 hours. After the reaction is finished, wash and filter with acetone, then dry in a vacuum oven at 60°C for 24 hours to obtain the powder of polypyrrole, the SEM picture of which is as follows: figure 1 shown.

Embodiment 3

[0024] Measure 0.5ml of pyrrole monomer and put it in a 100ml round bottom flask, then add 50ml of H 2 O, and then add 0.1 g FeCl to it 2 , after stirring evenly by magnetic force, then add 1ml H 2 o 2 , and the reaction was stirred at 5°C for 12 hours. After the reaction is finished, wash and filter with acetone, and then dry in a vacuum oven at 60° C. for 24 hours to obtain polypyrrole powder.

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Abstract

The invention relates to a preparation method and application of polypyrrole nanometer microspheres. A FeCI2 / H2O2 / H2O composite system serves as an oxidation system, and the polypyrrole nanometer microspheres are synthesized by using a chemical oxidation method. The preparation method includes that pyrrole monomer and FeCI2 are measured according to the molar ratio of 1:0.01-1:5; one part of pyrrole monomer and FeCI2 in corresponding proportion are added in a reactor containing 1-100 parts of water and mixed fully and evenly; a certain amount of H2O2 is added, oxidation reaction is performed at the reaction temperature between -30 DEG C and 35 DEG C, and the reaction time is 6-48 hours; and finally products obtained after the reaction is filtered, washed and dried. The polypyrrole nanometer microspheres serve as electrode materials of a supercapacitor in an energy storage system or serve as load media of catalyst. The preparation method is simple in process condition and environment-friendly in circuit, the prepared polypyrrole microspheres are perfect in structures and uniform in dimensions, and large-scale commercialized production can be achieved.

Description

technical field [0001] The invention relates to a preparation method and application of polypyrrole microspheres, in particular to a green preparation method and application of polypyrrole microspheres with unique nanostructures. Background technique [0002] Nanostructured Conducting Polymers (NCPs) have special structures and excellent optical, electronic, and electrochemical properties, and have important applications in energy, information storage, optoelectronic devices, sensors, etc., and are irreplaceable emerging functions Material. As the most common member of the nanoconductive polymer family, polypyrrole has attracted much attention due to its advantages of easy preparation, adjustable conductivity, reversible redox performance, biocompatibility and environmental stability, and has broad application prospects. . [0003] In order to prepare polypyrrole with special nanostructure, a variety of synthetic routes have been developed, mainly including template polyme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06H01G9/042B01J32/00B01J31/06
Inventor 葛子义路亮彭瑞祥欧阳新华刘颖
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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