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Peer-reviewedCC BYAdvanced Electronic Materials

3D MXene Aerogel Frameworks With In Situ‐Grown BiFeO3 for Synergistically Enhanced Thermoelectric Performance

  • Oju Kwon1
  • Jinhyun Park1
  • Minsu Kim1
  • Dabin Park2
  • Jooheon Kim1
  1. 1School of Chemical Engineering Chung‐Ang University Seoul Republic of Korea
  2. 2Department of Mechanical and Aerospace Engineering University of California Irvine California USA
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Abstract

Three‐dimensional BiFeO3@MXene aerogel composites with enhanced thermoelectric performance were developed through in situ interfacial engineering. The MXene aerogel provides continuous electrical transport pathways and intrinsically low thermal conductivity, while uniformly grown BiFeO3 delivers high thermopower and modulates carrier transport via heterointerfaces. As a result, the composites exhibit a significantly enhanced Seebeck coefficient while maintaining moderate electrical conductivity and reduced thermal conductivity. The optimized composite with a BiFeO3‐to‐MXene mass ratio of 1:1 (B1M1) exhibited a Seebeck coefficient of 192.7 µV/K, an electrical conductivity of 181.3 S/cm, and a low thermal conductivity of 0.32 W/m∙K, leading to a maximum power factor of 612.1 µW/m∙K2 and a peak figure of merit (ZT) of 0.53 at 400 K. In addition, the composite showed good environmental stability under humid air conditions and stable thermoelectric output at the device level. This study demonstrates that in situ growth of oxide phases within a 3D MXene aerogel is an effective strategy for overcoming thermoelectric trade‐offs and enabling the development of lightweight, high‐performance thermoelectric materials.

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Cite

BibTeXRIS
BibTeX
@article{kwon2026mxene,
  title = {{3D MXene Aerogel Frameworks With In Situ‐Grown BiFeO3 for Synergistically Enhanced Thermoelectric Performance}},
  author = {Oju Kwon and Jinhyun Park and Minsu Kim and Dabin Park and Jooheon Kim},
  journal = {Advanced Electronic Materials},
  year = {2026},
  month = oct,
  doi = {10.1002/aelm.70477},
  url = {https://doi.org/10.1002/aelm.70477},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - 3D MXene Aerogel Frameworks With In Situ‐Grown BiFeO3 for Synergistically Enhanced Thermoelectric Performance
AU  - Oju Kwon
AU  - Jinhyun Park
AU  - Minsu Kim
AU  - Dabin Park
AU  - Jooheon Kim
PY  - 2026
DA  - 2026/10/26
JO  - Advanced Electronic Materials
DO  - 10.1002/aelm.70477
UR  - https://doi.org/10.1002/aelm.70477
AB  - Three‐dimensional BiFeO3@MXene aerogel composites with enhanced thermoelectric performance were developed through in situ interfacial engineering. The MXene aerogel provides continuous electrical transport pathways and intrinsically low thermal conductivity, while uniformly grown BiFeO3 delivers high thermopower and modulates carrier transport via heterointerfaces. As a result, the composites exhibit a significantly enhanced Seebeck coefficient while maintaining moderate electrical conductivity and reduced thermal conductivity. The optimized composite with a BiFeO3‐to‐MXene mass ratio of 1:1 (B1M1) exhibited a Seebeck coefficient of 192.7 µV/K, an electrical conductivity of 181.3 S/cm, and a low thermal conductivity of 0.32 W/m∙K, leading to a maximum power factor of 612.1 µW/m∙K2 and a peak figure of merit (ZT) of 0.53 at 400 K. In addition, the composite showed good environmental stability under humid air conditions and stable thermoelectric output at the device level. This study demonstrates that in situ growth of oxide phases within a 3D MXene aerogel is an effective strategy for overcoming thermoelectric trade‐offs and enabling the development of lightweight, high‐performance thermoelectric materials.
SN  - 2199-160X
ER  -