TiO2-based nanomaterials doped with transition metals, eg. Fe, Co, Mn etc., play an important role in modern applications like photocatalysis, magnetism or nanomedicine. We report on the synthesis of amorphous Co-doped TiO2 xerogels by solution-chemistry methods and their nanocrystallization. The structural changes of the solgel-derived nanomaterials were investigated by in-situ high-temperature powder diffraction using synchrotron radiation and by differential scanning calorimetry. The densification of Co-doped titania nanopowders to full density nanocrystalline bulk solids by spark plasma sintering is described in detail.

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