Journal article · Conference paper
Environmental TEM investigation of the reduction of α-Fe2O3 nanorods under H2 atmosphere
The thermal reduction of hydrothermally synthesised α-Fe2O3 nanorods (NRs) to Fe3O4 NRs under hydrogen is investigated. Complete reduction of α-Fe2O3 NRs to Fe3O4 NRs was achieved during in situ XRD under 1 bar H2 atmosphere at 360°C. Complementary environmental transmission electron microscope investigation at high resolution, during in situ heating under an H2 pressure of 5 mbar at 500°C, provided evidence for the very first stages of transformation, supporting a model for the migration of oxygen along favoured α-Fe2O3 lattice planes during the templated thermal reduction of α-Fe2O3 NRs to Fe3O4 NRs.
Language: | English |
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Publisher: | IOP Publishing |
Year: | 2012 |
Pages: | 012049 (4pp) |
Proceedings: | Electron Microscopy and Analysis Group Conference (EMAG 2011) |
ISSN: | 17426588 and 17426596 |
Types: | Journal article and Conference paper |
DOI: | 10.1088/1742-6596/371/1/012049 |
ORCIDs: | Hansen, Thomas Willum |