Preparation and characterisation of tin-doped α-FeOOH (goethite)

The influence of Zn-dopant on the precipitation of α-FeOOH in highly alkaline media

“…Specifically, this technique showed its potentials in the investigations of Al 3+ [20][21][22][23], Ga 3+ [24] and Sn 4+ [25] substitutions for Fe in ␣-FeOOH.…”

Influence of ruthenium ions on the precipitation of α-FeOOH, α-Fe2O3 and Fe3O4 in highly alkaline media

“…Berry et al [11] prepared Sn-doped ␣-FeOOH by the hydrothermal method. Mössbauer spectroscopy showed that originally added Sn 2+ ions were oxidized to Sn 4+ , whereas Fe 3+ reduction was not noticed.…”

Influence of Ni-dopant on the properties of synthetic goethite

“…Dos Santos et al [10] reported that up to 10 mol% of gallium could be incorporated into the ␣-FeOOH structure, and it was concluded that the main effect of Gadoping was a reduced ␣-FeOOH crystallite size. Berry et al [11] prepared tin-doped ␣-FeOOH by the hydrothermal method. The authors found that originally added Sn 2+ ions were oxidized to Sn 4+ during the preparation procedure, and because the Fe 3+ reduction was not noticed it was concluded that the charge balance in tin-doped goethite was achieved by the formation of cation vacancies.…”