Journal article
Multifunctional Ti 3 C 2 T x -alginate foams for energy harvesting and fire warning
Nanoscale horizons, v 10, pp 1084-1095
23 Apr 2025
PMID: 40266239
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Foams that combine seemingly opposite properties, such as high thermal insulation and electrical conductivity, are highly sought after for modern-day advanced applications. However, achieving a balance of these properties necessitates careful tuning of material compositions. Here, we prepared ice-templated Ti
C
T
-alginate composite foams and investigated the role of Ti
C
T
MXene in triboelectric energy production, thermal insulation, and flame retardancy. Our results show that adding 5 wt% Ti
C
T
enhances the triboelectric output of 6 mm thick foams (380 V, 7.7 μA, 43 mW m
) by 110%. Despite incorporating electrically conducting Ti
C
T
, these macroporous composite foams have a thermal conductivity of only 62 mW m
K
, while they also show flame-retardant properties, exhibiting self-extinguishing behavior. Finally, we demonstrate these composite foams for constructing smart fire alarm systems as they respond to small changes in electrical resistance induced by fire. Our findings prove that Ti
C
T
is a versatile filler for biopolymer foams, introducing complementary functionalities that can be exploited in energy and safety applications.
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Details
- Title
- Multifunctional Ti 3 C 2 T x -alginate foams for energy harvesting and fire warning
- Creators
- Bernd Wicklein - Instituto de Ciencia de Materiales de MadridHyunjoon Yoo - Korea Advanced Institute of Science and TechnologyGeetha Valurouthu - Drexel UniversityJi-Seok Kim - Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea. ikoh@kaist.ac.krMannan Khan - Korea Advanced Institute of Science and TechnologyManmatha Mahato - Korea Advanced Institute of Science and TechnologyFederico Carosio - Politecnico di TorinoYury Gogotsi - Drexel UniversityIl-Kwon Oh - Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea. ikoh@kaist.ac.kr
- Publication Details
- Nanoscale horizons, v 10, pp 1084-1095
- Publisher
- Royal Society of Chemistry
- Number of pages
- 12
- Grant note
- Ministry of Science and ICT, South Korea: 2022H1D3A2A01082141, PID2019-107022RJ-I00, RYC2021-034164-I, MCIN/AEI/10.13039/501100011033 National Research Foundation of Korea (NRF) - Korean government (MSIT)European Union NextGenerationEU/PRTR"Charles T. and Ruth M. Bach EndowmentDrexel University
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (2022H1D3A2A01082141). BW acknowledges the grants PID2019-107022RJ-I00 and RYC2021-034164-I, funded by MCIN/AEI/10.13039/501100011033 and by the "European Union NextGenerationEU/PRTR". YG acknowledges The Charles T. and Ruth M. Bach Endowment, Drexel University.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:001472676500001
- Scopus ID
- 2-s2.0-105003482664
- Other Identifier
- 991022048905904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology