Synthesis method of PEDOT loaded graphene

Abstract

The invention provides a synthesis method of PEDOT loaded grapheme. The synthesis method of PEDOT loaded graphene is characterized in that the synthesis method of the PEDOT loaded grapheme comprises the following steps that EDOT monomer is dissolved in isopropanol, graphite oxide is added, ultrasonically stirring and dispersing are carried out to form sol; ferric trichloride is dissolved in a deionized water solution, the mixture is slowly added into first sol, and continuously stirring is carried out during the adding process to obtain mixed mother liquor; a potassium iodide solution is added, continuously stirring and reacting at room temperature for 8-24 hours are carried out to obtain precipitate, the precipitate is washed and dried to obtain PEDOT loaded graphene powder. All the raw materials are common cheap chemicals, are synthesized by adopting a green process, PEDOT obtained by in-situ polymerization in the graphite oxide sol is uniformly modified on graphene oxide, then KI isused for reducing graphite oxide, and a product I2 is absorbed by PEDOT, so that uniform modification of the PEDOT on the surface of reduced highly conductive graphene is achieved, and the effect ofsynergistically increasing conductivity is achieved.

Description

Technical field [0001] The invention belongs to the technical field of material chemistry, and relates to a method for synthesizing PEDOT-loaded graphene. Background technique [0002] PEDOT has the characteristics of simple molecular structure, small energy gap, and high conductivity. It is widely used in the research of organic thin-film solar cell materials, OLED materials, and secondary batteries. The conductivity of intrinsic state PEDOT is very low, and the conductivity can be greatly improved by doping. Organic acids such as PSS, hydrochloric acid, iodine molecule, p-toluenesulfonic acid, camphorsulfonic acid, etc. are all dopants that can effectively improve the conductivity. Since Novoselov and Geim discovered a two-dimensional carbon allotrope composed of a single layer of atoms-graphene, its excellent electrical conductivity, mechanical properties and thermal stability have attracted widespread attention. Graphene is used as a matrix and PEDOT composite shows broad ap...

AI Technical Summary

Problems solved by technology

The original discoverers Novoselov and Geim used mechanical exfoliation to prepare graphene. At present, graphene is usually prepared in large quantities by chemical reduction or thermal reduction of graphene oxide, but the dispersion is poor and the compatibility with polymers is poor.

If graphene and polymer nanoparticles are prepared separately and then compounded, serious aggregation and phase separation will occur, and it is difficult to obtain nanocomposites with uniform dispersion at the nanoscale

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