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Preparation method for thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon

A nano-carbon material and in-situ polymerization technology, which is applied in the manufacture/processing of thermoelectric devices, and lead-out wire materials of thermoelectric devices, can solve the problems of low thermoelectric performance, and achieve short preparation time, simple and stable process, and good promotion. combined effect

Active Publication Date: 2016-07-20
HARBIN INST OF TECH
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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 solve the problem of low thermoelectric properties of existing polyaniline thermoelectric polymer materials, and to provide a method for preparing a thermoelectric composite material in which polyaniline is in-situ polymerized and coated with PEDOT modified nano-carbon

Method used

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  • Preparation method for thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon
  • Preparation method for thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon
  • Preparation method for thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon

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specific Embodiment approach 1

[0021] Embodiment 1: In this embodiment, the preparation method of polyaniline in-situ polymerization coated PEDOT modified nano-carbon thermoelectric composite material is realized according to the following steps:

[0022] 1. Add organic solvent to PEDOT:PSS solution, add nano-carbon material after stirring evenly, ultrasonically stir until uniformly dispersed, then add inorganic acid or organic acid, and obtain PEDOT-modified nano-carbon material suspension after stirring;

[0023] 2. Using a pipette, add aniline to the PEDOT-modified nano-carbon material suspension, and ultrasonically stir the reaction at a temperature of 0-30° C. to obtain a PEDOT-modified nano-carbon material suspension containing aniline;

[0024] Three, the oxidizing agent that is 1:1 with the molar ratio of aniline is dissolved in the protonic acid, obtains the protonic acid solution containing oxidant, then the protonic acid solution containing oxidant is dropped into the PEDOT modified nano-carbon ma...

specific Embodiment approach 2

[0027]Specific embodiment two: the difference between this embodiment and specific embodiment one is that the organic solvent described in step one is dimethyl sulfoxide (DMSO), ethylene glycol (EG), tetrahydrofuran (THF), One or more mixed solvents in N-N dimethylformamide (DMF), polyethylene glycol (PEG). Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0028] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 1, an organic solvent is added to the PEDOT:PSS solution, and after stirring evenly, nano-carbon materials are added in a ratio of 0.1-10 mg / mL. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a preparation method for thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon, belongs to the field of thermoelectric polymers, and aims at solving the problem of low thermoelectric performance of existing polyaniline thermoelectric polymer material. The preparation method comprises the steps that firstly, an organic solvent and nano-carbon material are added in a PEDOT:PSS solution, and acid is added and stirring is performed so that suspending liquid is obtained; secondly, aniline is added to the PEDOT modified nano-carbon material suspending liquid, and ultrasonic stirring reaction is performed under temperature of 0-30 DEG C so that the PEDOT modified nano-carbon material suspending liquid having aniline is obtained; and thirdly, a proton acid solution having an oxidizing agent is dropped in the suspending liquid, and compression molding is performed after stirring reaction so that the thermoelectric composite material is obtained. Preparation time of the thermoelectric composite material of polyaniline in-situ polymerization clad PEDOT modified nano-carbon is short, the PEDOT:PSS content is low, the percolation threshold of the nano-carbon particles in the base is low and the thermoelectric performance is great.

Description

technical field [0001] The invention belongs to the field of thermoelectric polymers, in particular to a method for preparing a thermoelectric composite material in which polyaniline is in-situ polymerized and coated with PEDOT-modified nano-carbon. Background technique [0002] Since the beginning of the 21st century, with the continuous deterioration of the environment and the increasing shortage of energy sources, sustainable development and environmental protection have gradually become a consensus. In order to meet people's increasing demand for energy, finding high-efficiency, non-polluting energy conversion methods has become one of the urgent problems to be solved in today's energy science. Thermoelectric materials are semiconductor functional materials that can directly convert heat and electricity. Thermoelectric devices made of thermoelectric materials can improve the utilization rate of traditional energy sources and are clean and environmentally friendly. Theref...

Claims

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Application Information

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IPC IPC(8): H01L35/12H01L35/24H01L35/34
CPCH10N10/85H10N10/856H10N10/01
Inventor 宋英张睿心孙秋刘福
Owner HARBIN INST OF TECH
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