# MXene@C/SiO 2 composite films with layered heterostructures for high-temperature infrared stealth, electromagnetic interference shielding, and fire safety

“MXene@C/SiO 2 composite films with layered heterostructures for high-temperature infrared stealth, electromagnetic interference shielding, and fire safety” (2026), by Nan Pang et al. Materials Science research paper. Original abstract below, unchanged. A free PDF is available.

- Authors: Nan Pang, Xiaoqing Yin, Yi Lu, Xiao Cheng, 于美杰
- Published: October 28, 2026
- Field: Materials Science
- DOI: https://doi.org/10.26599/nr.2026.94909295
- Free PDF: https://www.sciopen.com/local/article_pdf/10.26599/NR.2026.94909295.pdf

## Abstract

Flexible materials integrating infrared stealth, electromagnetic interference (EMI) shielding, thermal management, and fire safety are highly desirable for aerospace and high-temperature electronics. Here, layered MXene@C/SiO2 composite films (MCSx) with tunable structural units were constructed by combining low-thermal-conductivity C/SiO2 nanofiber layers with highly conductive MXene layers. This heterogeneous architecture endows the films with pronounced anisotropic thermal transport and an ultralow through-plane thermal conductivity of 0.030 W m−1 K−1. Benefiting from the low emissivity of MXene and efficient thermal insulation, the films achieve infrared stealth over 50–500 °C and reduce the apparent surface temperature by 365.7 °C at a heat source temperature of 500 °C. The continuous MXene network enables rapid Joule heating from 29.5 to 149.6 °C at 0.5–3.0 V with an electrothermal conversion efficiency exceeding 99%. The conductive layers and heterogeneous interfaces jointly achieve an X-band EMI shielding effectiveness of 71.6 dB. The films also exhibit excellent flame retardancy, thermal insulation, and fire resistance while maintaining EMI shielding performance after flame exposure. This work provides a heterostructure engineering strategy for developing multifunctional protective materials under thermally demanding conditions.

Canonical page: https://nerdi.pages.dev/paper/W7224956057
Read three real papers a day in Nerdi (iPhone): https://apps.apple.com/app/apple-store/id6813826387?pt=128757794&ct=web-paper&mt=8