| Citation: |
Lijuan Yang, Cheng-Gong Han. Perspective and advances on ionic thermoelectric energy conversion[J]. Materials Lab, 2023, 2(3): 230010. doi: 10.54227/mlab.20230010
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Perspective and advances on ionic thermoelectric energy conversion
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Abstract
Ionic thermoelectric energy conversion uses ions as carriers to convert heat into electricity. The high temperature-induced voltage of several millivolts per degree Kelvin has attracted more attention to the application of self-powered sensors in IoTs. In this perspective, the thermogalvanic and thermodiffusion effects are illustrated, together with the research advances on ionic thermoelectric gels. However, the status in recent 3 years is high temperature-induced voltage but low output power. The authors propose that the synergy of two effects, electrode design and structure optimization are believed to be effective ways to improve ionic thermoelectric properties.
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Author Biographies
Lijuan Yang received her B.E. degree from Guangxi normal University, China, in 2022. She is now a master degree candidate at the School of Chemistry and Chemical Engineering, Guangzhou University, China, under the supervision of Prof. Cheng-Gong Han. Currently, her research mainly focuses on ions regulation for the high-performance ionic thermoelectric gels. 
Cheng-Gong Han is a Professor at the School of Chemistry and Chemical Engineering, Guangzhou University, China, since 2021. He received his Master degree in materials science and engineering from University of Science and Technology Beijing, China, in 2013. And then, He received his PhD. degree in materials science and engineering from Hokkaido University, Japan, in 2017. Afterward, he spent two years as a postdoctoral researcher at the Southern University of Science and Technology, China, and then he continued to engage in the research as a research assistant professor. Currently, his research interests are mainly focused on the development of the high performance ionic thermoelectric energy conversion and the related ionic sensors. -
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Lijuan Yang, Cheng-Gong Han. Perspective and advances on ionic thermoelectric energy conversion[J]. Materials Lab, 2023, 2(3): 230010. doi: 10.54227/mlab.20230010
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Figure 1.
a Schematic of the thermogalvanic effect and thermodiffusion effect; b Schematic of the thermodiffusion, redox reaction, and interaction between the ions in Gelatin-KCl-FeCN4−/3− gels.[10] Copyright 2020, American Association for the Advancement of Science; Comparison of absolute ionic thermopower for the redox couple contained gels c and redox couple free gels d; e Comparison of normalized maximum output power (Pmax/(ΔT)2) for the redox couple contained gels.
