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Organic thermoelectric material based on poly[Kx(Ni-ett)], preparing method for organic thermoelectric material and application of organic thermoelectric material

A polyethylene tetrathiol and organic solvent technology, which is applied in the fields of thermoelectric device junction lead-out material, thermoelectric device manufacturing/processing, etc., can solve the problems of uncertain structure, affecting processing and preparation performance, insoluble and infusible

Active Publication Date: 2014-12-24
INST OF CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of this type of material is that its structure is uncertain, and it is insoluble and infusible, which seriously affects its processing and preparation performance.

Method used

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  • Organic thermoelectric material based on poly[Kx(Ni-ett)], preparing method for organic thermoelectric material and application of organic thermoelectric material
  • Organic thermoelectric material based on poly[Kx(Ni-ett)], preparing method for organic thermoelectric material and application of organic thermoelectric material
  • Organic thermoelectric material based on poly[Kx(Ni-ett)], preparing method for organic thermoelectric material and application of organic thermoelectric material

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Embodiment 1, the preparation of the polyethylene tetramercaptan nickel of different oxidation degrees

[0051] In an argon atmosphere, dissolve 0.5g of 1,3,4,6-tetrathiopentene-2,5-dione and 0.778g of potassium methylate in 300ml of methanol, and stir at room temperature for 24h;

[0052] Use a solid injector to add 0.437g of nickel chloride dispersed in methanol suspension, and stir at room temperature for 24h;

[0053] Under an inert atmosphere, filter, and transfer the filtrate to an electrolytic cell. The working electrode and the counter electrode are platinum electrodes, and the reference electrode is an Ag / AgCl electrode. A three-electrode system is used to measure the cyclic voltammetry curve, and then the oxidation potential is determined to be 0.6V. Use the constant potential oxidation method to oxidize for 24 hours to regulate the oxidative polymerization of nickel ethylene tetrathiol;

[0054] After the end, centrifuge the obtained suspension (10500r / min) ...

Embodiment 2

[0062] Embodiment 2, the preparation of polyethylene tetramercaptan nickel film material

[0063] In an argon atmosphere, dissolve 0.5g of 1,3,4,6-tetrathiopentene-2,5-dione and 0.778g of potassium methylate in 300ml of methanol, and stir at room temperature for 24h;

[0064] Use a solid injector to add 0.437g of nickel chloride dispersed in methanol suspension, and stir at room temperature for 24h;

[0065] In an inert atmosphere, filter and transfer the filtrate to the electrolytic cell. The working electrode and the counter electrode are platinum electrodes. In addition, a polytetrafluoroethylene film is fixed around the platinum sheet of the working electrode by electrode clamps. The reference electrode is an Ag / AgCl electrode. , using a three-electrode system to measure the cyclic voltammetry curve, and then determine the oxidation potential of 0.6V, and use the constant potential oxidation method to oxidize for 24 hours to control its oxidation polymerization on the surf...

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Abstract

The invention discloses an organic thermoelectric material based on poly[Kx(Ni-ett)], a preparing method for the organic thermoelectric material and application of the organic thermoelectric material. The preparing method comprises the steps of dissolving potassium methoxide and 1,3,4,6-tetrathiapentalene-2,5-dione in methyl alcohol, stirring the materials in the normal temperature, then adding nickel chloride, stirring the materials in the normal temperature, filtering the materials, transferring filter liquor into an electrolytic tank and using an electrochemical constant-potential oxidizing method to adjust oxidization coordination polymerization of the poly[Kx(Ni-ett)] to obtain the organic thermoelectric material. After being subjected to different oxidation potentials, the thermoelectric performance of the material is obviously changed. When the oxidation potential is 1.6V, the power factor of the material can reach 38muW / mK2, and higher thermoelectric performance can be obtained. Meanwhile, the power factor of the film material can reach 311muW / mK2 in the room temperature, and the higher thermoelectric performance can be achieved. The film formation, the insolubility and the infusibility of the film material are favorable of the processing of thermoelectric devices and improvement of the stability. Thus, the organic thermoelectric material has good application prospect.

Description

technical field [0001] The invention belongs to the field of organic thermoelectric materials, and relates to an organic thermoelectric material based on nickel ethylene tetramercaptide, a preparation method and application thereof. Background technique [0002] With the acceleration of the global industrialization process, the world's energy shortage and depletion have become problems that cannot be ignored by every country, seriously restricting the long-term stable development of society. Research and development of new energy has become the trend of global energy development. Thermoelectric materials have become a promising functional material due to their unique properties, and their applications include thermoelectric power generation and thermoelectric refrigeration. The Seebeck effect discovered in 1823 and the Peltier effect discovered in 1834 provided a theoretical basis for the application of thermoelectric energy converters and thermoelectric refrigeration. The...

Claims

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Application Information

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IPC IPC(8): H01L35/24H01L35/34
Inventor 孙源慧徐伟孙祎萌朱道本
Owner INST OF CHEM CHINESE ACAD OF SCI
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