Thermogravimetry in a gradient magnetic field as an efficient quasi <i>in situ</i> method for studying magnetic phase formation: optimizing ε-Fe <sub>2</sub> O <sub>3</sub> synthesis
In this study, we present a principal methodology for semi-quantitative analysis of magnetic phase composition during thermogravimetry under a gradient magnetic field, specifically in cycling mode. This approach is demonstrated using Fe-Si-O xerogels, in which magnetic nanophases such as ε-, γ-, and α-Fe<sub>2</sub>O<sub>3</sub> can coexist and transform into each other. We introduce a novel, time-efficient quasi <i>in situ</i> approach to identify and optimize heat treatment conditions for synthesizing ε-Fe<sub>2</sub>O<sub>3</sub> as a single phase, a material with significant industrial demand. Our results provide a valuable framework for advancing the controlled synthesis of magnetic compounds.
Authors
- Roy Nygaard (ORCID: https://orcid.org/0000-0002-0989-0826)
- Evgeny A. Gorbachev (ORCID: https://orcid.org/0000-0001-6503-2968)
- Lev A. Trusov (ORCID: https://orcid.org/0000-0002-0618-5216)
- Ekaterina S. Kozlyakova (ORCID: https://orcid.org/0000-0002-9860-8721)
- Jingtong Duan (ORCID: https://orcid.org/0000-0002-5548-4618)
- Yifan Wang (ORCID: https://orcid.org/0000-0001-9966-682X)
Institutions
- Lomonosov Moscow State University (RU)
- Shenzhen Technology University (CN)
- Shenzhen MSU-BIT University
Publication Details
- Journal
- Materials Horizons
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5mh01134e
- Citations
- 1
- Primary Topic
- Iron oxide chemistry and applications
- Type
- article
- Field-Weighted Citation Impact
- 0.36