Abstract
Nanostructured Ti(IV)-doped γ-Fe2O3 was prepared via a sol-gel method, and the effect of doping on the phase stability, textural properties, and catalytic activity was investigated. Well-dispersed 10% Ti in γ-Fe2O3 structure was found to significantly suppress its conversion to α-Fe2O3. While undoped product contained both phases, γ- and α-Fe2O3, at 400 °C, its doped counterpart contained γ-Fe2O3 as the sole phase at temperatures as high as 500 °C and partial conversion started only at 550 °C. Doping also resulted in modified textural properties, including smaller particles, larger surface areas, and higher mesoporosity, as well as enhanced reducibility and catalytic activity.
Original language | English |
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Pages (from-to) | 91-97 |
Number of pages | 7 |
Journal | Journal of Solid State Chemistry |
Volume | 259 |
DOIs | |
Publication status | Published - Mar 2018 |
Keywords
- Metal oxides
- Nanoparticles
- Oxidation catalysis
- Sol-gel preparation
- γ-FeO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry