Low-cost fe2o3 nanowire aerogel for high thermal resistance materials
Introducing Fe2O3 nanowire aerogel (FONA), a low-cost, high thermal resistance material with enhanced mechanical strength. With its fire-resistant properties and scalable fabrication, FONA is ideal for insulation applications across diverse temperature ranges.
Overview
Fe2O3 nanowire aerogel (FONA) represents a breakthrough in thermal insulation materials, offering an innovative solution with high thermal resistance and fire-retardant properties. These aerogels are developed using Fe2O3 nanowires, assembled into a highly porous structure that introduces multiple thermal contact resistances, enhancing insulation capabilities. The use of Fe2O3, a material abundant and cost-effective, ensures a scalable production process, making FONA a promising alternative for diverse applications requiring thermal stability and mechanical robustness.
Technical specifications
- Composition: Fe2O3 nanowires form the core of the aerogel, providing fire resistance and thermal insulation.
- Structure: Highly porous, ultralight aerogel with a density of approximately 10 mg/cm³ and compressive strengths around 10 MPa per unit density.
- Temperature Range: Exhibits thermal stability from -200°C to 800°C, making it suitable for extreme temperature environments.
- Fabrication Process: Involves hydrothermal synthesis of Fe2O3, freeze-drying to form aerogel green foam, and thermal calcination at 500°C.
- Characterization: Comprehensive analysis using XRD, SEM, TEM, XCT, Raman, and FTIR to assess microstructure and mechanical properties.
Technology readiness level
Currently, the Fe2O3 nanowire aerogel is at Technology Readiness Level 3. It has been proven in a laboratory environment, with ongoing efforts focused on further validation through fabrication and mechanical testing, as well as thermal characterization and modeling.
About University of Tennessee, Knoxville
The University of Tennessee, Knoxville is a comprehensive public land‑grant research university—the flagship of the UT System—classified as R1 and serving more than 40,000 students. Industry engagement is anchored by the UT Research Park at Cherokee Farm, where corporate R&D and joint university–national lab facilities sit just across the river from campus, including assets such as the Volkswagen Innovation Hub and an AT&T 5G testbed. UT’s long‑standing partnership with Oak Ridge National Laboratory—via UT‑Battelle and the UT–Oak Ridge Innovation Institute—gives companies streamlined access to national lab capabilities, talent, and joint programs. A statewide Extension network and established co‑op programs connect companies to faculty expertise and student talent across Tennessee and into federal labs. Research is supported by competitive federal sponsors such as the National Science Foundation and the U.S. Department of Energy. Commercialization is managed by the University of Tennessee Research Foundation, which handles IP, licensing, and startup formation.
Inquire about this partnering listing
Industry applications
delivered to your inbox.