High Thermopower of Agarose-Based Ionic Thermoelectric Gel Through Micellization Effect Decoupling the Cation/Anion Thermodiffusion

Li，Qikai1,2; Yu，Dangkai1,3; Wang，Shuaihua1,3; Zhang，Xinbo1,3; Li，Yuchen1,3; Feng，Shien Ping2,4; Liu，Weishu1,3

2023

10.1002/adfm.202305835

Advanced Functional Materials   影响因子和分区

1616-301X

1616-3028

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 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.

agarose decoupling effects Ionic thermoelectric gels micellization thermodiffusion

SCI ; EI

英语

NI论文

第一 ; 通讯

Guangdong Innovative and Entrepreneurial Research Team Program Project[2016ZT06G587] ; Shenzhen Sci-Tech Fund[KYTDPT20181011104007] ; Shenzhen DRC project[[2018]1433]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001032655400001

WILEY-V C H VERLAG GMBH

20233014426634

Enthalpy ; Gels ; Micelles ; Micellization ; Positive ions

Thermodynamics:641.1 ; Colloid Chemistry:801.3 ; Chemical Products Generally:804

MATERIALS SCIENCE

2-s2.0-85165247844

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
2.Department of Mechanical Engineering,The University of Hong Kong,Pokfulam Road,999077,Hong Kong
3.Shenzhen Engineering Research Center for Novel Electronic Information Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Advanced Design and Systems Engineering,City University of Hong Kong,Kowloon,999077,Hong Kong

Li，Qikai,Yu，Dangkai,Wang，Shuaihua,et al. High Thermopower of Agarose-Based Ionic Thermoelectric Gel Through Micellization Effect Decoupling the Cation/Anion Thermodiffusion[J]. Advanced Functional Materials,2023,33(49).

Li，Qikai.,Yu，Dangkai.,Wang，Shuaihua.,Zhang，Xinbo.,Li，Yuchen.,...&Liu，Weishu.(2023).High Thermopower of Agarose-Based Ionic Thermoelectric Gel Through Micellization Effect Decoupling the Cation/Anion Thermodiffusion.Advanced Functional Materials,33(49).

Li，Qikai,et al."High Thermopower of Agarose-Based Ionic Thermoelectric Gel Through Micellization Effect Decoupling the Cation/Anion Thermodiffusion".Advanced Functional Materials 33.49(2023).