Thermoelectric conversion material, thermoelectric conversion element, article for thermoelectric generation using same, and power source for sensor
A thermoelectric conversion material and thermoelectric conversion technology, applied in the manufacture/processing of thermoelectric devices, thermoelectric device node lead-out materials, etc., can solve the problems of harmfulness and complicated processing technology, and achieve the effect of high thermoelectric potential and performance maintenance
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[0321]
[0322] The thermoelectric conversion material of the present invention can be produced by mixing the above-mentioned components. Preferably, it is prepared by adding and mixing a nano conductive material and a conductive polymer containing at least the structure represented by the above general formula (1) as a repeating structure to a solvent, and dissolving or dispersing each component. At this time, among the components in the thermoelectric conversion material, it is preferable that the nano-conductive material is in a dispersed state, and other components such as a conductive polymer are in a dispersed or dissolved state, and it is more preferable that components other than the nano-conductive material are in a dissolved state. When the components other than the nano-conductive material are in a dissolved state, the effect of suppressing the decrease in electrical conductivity can be obtained through the crystal grain boundaries, which is preferable. It should ...
Synthetic example 1
[0365] Synthesis Example 1: Synthesis of Conductive Polymer 1
[0366] 4-({4-[(4-Hydroxyphenyl)-m-tolylamino]phenyl}-m-tolylamino)phenol (6 mmol) was mixed with 4,4'-difluorobenzophenone (6 mmol) was dissolved in 80 ml of NMP (N-methylpyrrolidone), potassium carbonate (48 mmol) was added, and the mixture was reacted at 140° C. for 20 hours in a nitrogen atmosphere. After cooling naturally, 4 ml of acetic acid was added to the reaction liquid, poured into methanol, and the obtained solid was filtered and washed with water. After drying under reduced pressure at 60° C., the solid was dissolved in chloroform, poured into methanol, and reprecipitated. The resulting solid was filtered off, suspended and washed with acetone, and filtered to obtain a conductive polymer 1 (4 g) composed of repeating units shown below. The weight average molecular weight (Mw) of this conductive polymer was 15,000. The molecular weight was determined by GPC measurement using THF as a solvent and usin...
Synthetic example 2
[0369] Synthesis Example 2: Synthesis of Conductive Polymer 2
[0370] 4-n-butylaniline (2g), N,N-bis(4-bromophenyl)aniline (4g), sodium tert-butoxide (1.5g) and toluene (30ml) were put into the reaction vessel, and the system Nitrogen replacement was performed sufficiently, and the mixture was heated to 65°C. Tris(dibenzylideneacetone)dipalladium chloroform complex (40 mg) and 60 mg of tri-tert-butylphosphine were added thereto, and a heating-reflux reaction was carried out for 4 hours. The reaction solution was naturally cooled, poured into 500 mL of ethanol, and the precipitated solid was filtered out. The obtained solid was dissolved in chloroform, and reprecipitated with 500 mL of ethanol. After filtration, it was suspended with acetone and filtered to obtain a conductive polymer 2 (4 g) composed of repeating units shown below. The weight average molecular weight (Mw) of this conductive polymer was 23,000.
[0371] 【Chemical 35】
[0372] Conductive Polymer 2
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