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High Thermopower of Agarose‐Based Ionic Thermoelectric Gel Through Micellization Effect Decoupling the Cation/Anion Thermodiffusion.
- Source :
-
Advanced Functional Materials . Dec2023, Vol. 33 Issue 49, p1-8. 8p. - Publication Year :
- 2023
-
Abstract
- Ionic thermoelectric (i‐TE) gels can have a high thermopower, if the thermodiffusion of mobile cation/anion is decoupled, attracting increasing attentions. Herein, it is shown a high p‐type i‐TE thermopower of 41.8 mV K−1 in agarose‐based ionic thermoelectric gels of AG‐x Na:DBS (AG: agarose, Na:DBS: sodium dodecyl benzene sulfonate). The exclusively high thermopower is relative to the successfully decoupling the thermodiffusion of cation Na+ and anion DBS−. A unique porous structure is formed due to the micellization of the amphiphilic DBS− with the hydrophilic benzenesulfonic group attached to the hydrous agarose gel chains, while the hydrophobic alkyl chain point to the pore centers. As a result, the DBS− micelles are almost immobile as compared with Na+, which can be reconsidered as a part of the gel matrix. The work shines a light on decoupling of cation/anion thermodiffusion through tailoring the microstructure of the quasi‐solid i‐TE materials. [ABSTRACT FROM AUTHOR]
- Subjects :
- *THERMOPHORESIS
*ANIONS
*CATIONS
*AGAROSE
*HYDROUS
*THERMOELECTRIC power
Subjects
Details
- Language :
- English
- ISSN :
- 1616301X
- Volume :
- 33
- Issue :
- 49
- Database :
- Academic Search Index
- Journal :
- Advanced Functional Materials
- Publication Type :
- Academic Journal
- Accession number :
- 173975012
- Full Text :
- https://doi.org/10.1002/adfm.202305835