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.
|Book series||Journal of Physics: Conference Series (Online)|
|Publication status||Published - 2012|
|Event||Electron Microscopy and Analysis Group Conference (EMAG 2011) - Birmingham, United Kingdom|
Duration: 6 Sep 2011 → 9 Sep 2011
|Conference||Electron Microscopy and Analysis Group Conference (EMAG 2011)|
|Period||06/09/2011 → 09/09/2011|