Preparation method for flexible fabric composite thermoelectric material

A technology of thermoelectric materials and fabrics, applied in the field of materials science, can solve the problems of less research and achieve the effects of huge market potential, stable thermoelectric performance, broad application prospects and market value

Active Publication Date: 2017-08-11
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few studies in this area, especially the flexible Bi 2 Te 3 / PEDOT:PSS / fabric composite thermoelectric material, which has not been reported so far

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method for flexible fabric composite thermoelectric material
  • Preparation method for flexible fabric composite thermoelectric material
  • Preparation method for flexible fabric composite thermoelectric material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Bi 2 Te 3 / PEDOT:PSS / Fabric Flexible Composite Thermoelectric Material

[0027] (1) Ingredients: firstly mix 0.025 mol C 4 h 4 Na 2 o 6 , 0.005 mol Bi(NO 3 ) 3 ·5H 2 O, 0.0075 molTeO 2 , 0.1 mol KOH, put into a beaker containing 100mL deionized water, stir until dissolved, put a cotton fabric with a size of 2cm*2cm into the solution and continue to stir for 1h. Add 0.05 mol KBH 4 After that, stirring was continued for 1 h. After stopping stirring, control water-bath temperature is 75 DEG C, reacts 24h;

[0028] (2) Washing: Alternately wash with deionized water and absolute ethanol 3 times each;

[0029] (3) Drying: Bi 2 Te 3 / The fabric is vacuum dried at 70°C for 12 hours;

[0030] (4) Treatment: use DMSO-doped PEDOT:PSS solution (the mass ratio of DMSO and PEDOT:PSS is 1:19) to Bi 2 Te 3 / The fabric is soaked for 0.5h;

[0031] (5) Drying: Bi 2 Te 3 / PEDOT:PSS / The fabric was vacuum dried at 130°C for 0.5h.

[0032] figure 1 a and b are the ...

Embodiment 2

[0034] Bi 2 Te 3 / PEDOT:PSS / Fabric Flexible Composite Thermoelectric Material

[0035] (1) Ingredients: firstly mix 0.025 mol C 4 h 4 Na 2 o 6 , 0.004 mol Bi(NO 3 )3 ·5H 2 O, 0.006 molTeO 2 , 0.12 mol KOH, put into a beaker containing 100mL deionized water, stir until dissolved, put a cotton fabric with a size of 2.5cm*2.5cm into the solution and continue to stir for 2h. Add 0.04 mol KBH 4 After that, the stirring was continued for 2h. After stopping the stirring, control the temperature of the water bath to 80°C and react for 36 hours;

[0036] (2) Washing: Alternately wash with deionized water and absolute ethanol 3 times each;

[0037] (3) Drying: Bi 2 Te 3 / The fabric is vacuum dried at 60°C for 12 hours;

[0038] (4) Treatment: use DMSO-doped PEDOT:PSS solution (the mass ratio of DMSO and PEDOT:PSS is 1:18) to Bi 2 Te 3 / The fabric is soaked for 0.2h;

[0039] (5) Drying: Bi 2 Te 3 / PEDOT:PSS / The fabric was vacuum dried at 130°C for 1h.

[0040] ...

Embodiment 3

[0042] Bi 2 Te 3 / PEDOT:PSS / Fabric Flexible Composite Thermoelectric Material

[0043] (1) Ingredients: Firstly mix 0.01 mol C 4 h 4 Na 2 o 6 , 0.002 mol Bi(NO 3 ) 3 ·5H 2 O, 0.003 molTeO 2 , 0.04 mol KOH, put into a beaker containing 80mL deionized water, stir until dissolved, put a cotton fabric with a size of 0.1cm*0.1cm into the solution and continue to stir for 1.5h. Add 0.02mol KBH 4 After that, stirring was continued for 1 h. After stopping the stirring, control the temperature of the water bath to 70°C and react for 12 hours;

[0044] (2) Washing: Alternately wash with deionized water and absolute ethanol 3 times each;

[0045] (3) Drying: Bi 2 Te 3 / The fabric is vacuum dried at 60°C for 6 hours;

[0046] (4) Treatment: use DMSO-doped PEDOT:PSS solution (the mass ratio of DMSO and PEDOT:PSS is 1:49) to Bi 2 Te 3 / The fabric is soaked for 0.2h;

[0047] (5) Drying: Bi 2 Te 3 / PEDOT:PSS / The fabric was vacuum dried at 120°C for 0.5h.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention belongs to the field of material science and provides a preparation method for flexible Bi2Te3 / PEDOT: PSS / fabric composite thermoelectric material. The preparation method comprises the following steps: weighing tartrate, bismuth nitrate pentahydrate, tellurium dioxide, potassium hydroxide and deionized water according to the material ratio, and adding the same to a container to form a mixed solution; then putting the fabric into the solution, performing stirring, adding potassium borohydride, performing continuous stirring for a period of time, stopping stirring and placing and heating the container in a thermostatic waterbath for reaction; after the reaction is completed, repeatedly washing the obtained Bi2Te3 / fabric composite material with deionized water and ethanol and then subjecting the obtained material to vacuum drying, and placing a dried product in dimethyl sulfoxide doping PEDOT: PSS mixed solution for processing; and finally performing vacuum drying to obtain Bi2Te3 / PEDOT: PSS / fabric composite thermoelectric material. The flexible fabric thermoelectric material prepared by the method has a broad application prospect in the field of wearable electronics, and has huge market potential.

Description

technical field [0001] The invention belongs to the field of materials science and relates to a flexible fabric thermoelectric material, specifically a flexible Bi 2 Te 3 Preparation method of / PEDOT:PSS / fabric composite thermoelectric material. Background technique [0002] With the development of science and technology, the energy crisis and environmental pollution are becoming more and more serious, so the development of green energy is imminent. Thermoelectric materials are materials that can directly convert thermal energy to electrical energy through the transport of carriers (holes or electrons) in the solid state. They have been used in the fields of power generation and refrigeration. Devices prepared using thermoelectric materials have many significant advantages, such as: no noise, no pollution, no moving parts, etc., and have broad market prospects. [0003] The performance index of thermoelectric materials is generally measured by the dimensionless ZT figur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L35/34H01L35/16H01L35/24B82Y40/00B82Y30/00
CPCB82Y30/00B82Y40/00H10N10/856H10N10/852H10N10/01
Inventor 杜永李云扬徐家跃
Owner SHANGHAI INST OF TECH
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