A novel approach to synthesize mixed-metal oxides via direct metal combustion
A high-surface-area, magnetic iron‑aluminum spinel has been synthesized via direct combustion of iron and aluminum powders in a laminar dust burner. Characterization of the combustion products by SEM, EDAX, XRD, and BET revealed spherical nanoparticles comprised of hercynite (FeAl 2 O 4 ) and gamma-alumina ( γ -Al 2 O 3 ), formed due to high flame temperatures. The products exhibit a high specific surface areas (800 m 2 /g) and high porosity, indicating strong catalytic potential. • A laminar metal-air flame is used to synthesize spinel nanoparticles. • The obtained nanoparticles are porous and have a very high specific surface area. • The proposed method is a one-step, clean process.
Authors
- Eric McCalla (ORCID: https://orcid.org/0000-0002-0557-608X)
- Evgeny Shafirovich (ORCID: https://orcid.org/0000-0002-3632-2349)
- Samuel Goroshin (ORCID: https://orcid.org/0000-0003-4335-7053)
- Jeffrey M. Bergthorson (ORCID: https://orcid.org/0000-0003-2924-7317)
- Kartik Mangalvedhe
- Ethan Anderson
- Zachary A. Chanoi (ORCID: https://orcid.org/0000-0003-2688-2673)
- Victoria Reyes
Institutions
- The University of Texas at El Paso (US)
- McGill University (CA)
Publication Details
- Journal
- Materials Letters
- Published
- 2025-11-15
- DOI
- https://doi.org/10.1016/j.matlet.2025.139802
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 0.00