Air-dried high-strength black MXene aerogel for spatiotemporal infrared information management.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41193427.
- Also identified by DOI 10.1038/s41467-025-64754-8 and PMC identifier 12589439.
- Licence recorded as CC BY-NC-ND.
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Abstract
Great efforts have been made to control the energy interaction between objects and environments by the effective regulation of infrared (IR) radiation of materials with low-thermal-conductivity aerogels or electrical-/thermal- triggered functional films, which would bring heavy burden associated with system complexity for objects in dynamical environments. Herein, a bone-like lightweight and high-strength black Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> aerogel is developed, which demonstrates an easily mechanically-regulated IR radiation management capacity for high-temperature objects with backgrounds of dramatic temperatures fluctuations. An air-drying strategy allows inner wrinkled and porous structure of this lightweight (60 mg cm<sup>-3</sup>) Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> aerogel with the record 159.9 MPa g<sup>-1</sup> cm<sup>3</sup> specific compressive modulus and 1.6 MPa g<sup>-1</sup> cm<sup>3</sup> specific compressive stress. IR emissivity of Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> aerogel can be modulated widely from 0.17 to 0.98 by surface microstructure construction for IR letters or numbers information transmission, although which appear to be indistinguishable black to naked eyes.