Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient
Abstract Thermoelectric (TE) materials that directly convert heat to electricity are of great significance for sustainable development. However, TE generators (TEGs) made from electronic TE materials suffer from low Seebeck coefficient (10−2–100 mV K−1). While ionic TE capacitors based on ionic cond...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-01-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202406589 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832593524272398336 |
|---|---|
| author | Siqi Liu Mingxia Zhang Junhua Kong Hui Li Chaobin He |
| author_facet | Siqi Liu Mingxia Zhang Junhua Kong Hui Li Chaobin He |
| author_sort | Siqi Liu |
| collection | DOAJ |
| description | Abstract Thermoelectric (TE) materials that directly convert heat to electricity are of great significance for sustainable development. However, TE generators (TEGs) made from electronic TE materials suffer from low Seebeck coefficient (10−2–100 mV K−1). While ionic TE capacitors based on ionic conductors exhibit high thermovoltage (100–102 mV K−1), ionic TE capacitors provide power discontinuously only under variation of temperature gradient as ions cannot transport across electrodes to external circuits. Herein, an ionic/electronic hybrid nanocomposite TE converter (NCTEC) by integrating carbon nanotube/polylactic acid nanofibrous fabrics (CPNF) with gelatin ionogel is reported. The resulting NCTEC exhibits a record‐high output power density normalized by squared temperature gradient (Pave/ΔT2) of 1.72 mW m−2 K−2 and realizes continuous power output (over 12 h) at a constant temperature gradient, which is among the highest reported power output for TE converters and can be attributed to the combination of substantial increase in interfacial capacitive effect between ionogel and CPNF and an optimized electrical property of the CPNF. The work provides an effective strategy to overcome the limitations of both TEGs and ionic TE capacitors. |
| format | Article |
| id | doaj-art-1c2fd393d9ee45b48fcc55da843f1f2a |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-1c2fd393d9ee45b48fcc55da843f1f2a2025-01-20T13:04:18ZengWileyAdvanced Science2198-38442025-01-01123n/an/a10.1002/advs.202406589Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature GradientSiqi Liu0Mingxia Zhang1Junhua Kong2Hui Li3Chaobin He4Department of Materials Science & Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117574 SingaporeDepartment of Materials Science & Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117574 SingaporeInstitute of Materials Research and Engineering Agency for Science, Technology and Research, (A*STAR) Singapore 138634 SingaporeHubei Key Laboratory of Plasma Chemistry and Advanced Materials Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials School of Materials Science and Engineering Wuhan Institute of Technology Wuhan 430205 ChinaDepartment of Materials Science & Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117574 SingaporeAbstract Thermoelectric (TE) materials that directly convert heat to electricity are of great significance for sustainable development. However, TE generators (TEGs) made from electronic TE materials suffer from low Seebeck coefficient (10−2–100 mV K−1). While ionic TE capacitors based on ionic conductors exhibit high thermovoltage (100–102 mV K−1), ionic TE capacitors provide power discontinuously only under variation of temperature gradient as ions cannot transport across electrodes to external circuits. Herein, an ionic/electronic hybrid nanocomposite TE converter (NCTEC) by integrating carbon nanotube/polylactic acid nanofibrous fabrics (CPNF) with gelatin ionogel is reported. The resulting NCTEC exhibits a record‐high output power density normalized by squared temperature gradient (Pave/ΔT2) of 1.72 mW m−2 K−2 and realizes continuous power output (over 12 h) at a constant temperature gradient, which is among the highest reported power output for TE converters and can be attributed to the combination of substantial increase in interfacial capacitive effect between ionogel and CPNF and an optimized electrical property of the CPNF. The work provides an effective strategy to overcome the limitations of both TEGs and ionic TE capacitors.https://doi.org/10.1002/advs.202406589carbon nanotubeelectrospinningheat harvestingionogelthermoelectric converter |
| spellingShingle | Siqi Liu Mingxia Zhang Junhua Kong Hui Li Chaobin He Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient Advanced Science carbon nanotube electrospinning heat harvesting ionogel thermoelectric converter |
| title | Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient |
| title_full | Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient |
| title_fullStr | Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient |
| title_full_unstemmed | Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient |
| title_short | Giant Power Output from Ionic/electronic Hybrid Nanocomposite Thermoelectric Converter Under Constant Temperature Gradient |
| title_sort | giant power output from ionic electronic hybrid nanocomposite thermoelectric converter under constant temperature gradient |
| topic | carbon nanotube electrospinning heat harvesting ionogel thermoelectric converter |
| url | https://doi.org/10.1002/advs.202406589 |
| work_keys_str_mv | AT siqiliu giantpoweroutputfromionicelectronichybridnanocompositethermoelectricconverterunderconstanttemperaturegradient AT mingxiazhang giantpoweroutputfromionicelectronichybridnanocompositethermoelectricconverterunderconstanttemperaturegradient AT junhuakong giantpoweroutputfromionicelectronichybridnanocompositethermoelectricconverterunderconstanttemperaturegradient AT huili giantpoweroutputfromionicelectronichybridnanocompositethermoelectricconverterunderconstanttemperaturegradient AT chaobinhe giantpoweroutputfromionicelectronichybridnanocompositethermoelectricconverterunderconstanttemperaturegradient |