Abstract
Abstract Ultrafine powders of Nb2O5 were prepared by hydrothermal H2O2 oxidation of metallic Nb, resulting in the formation of the high pressure pseudo-hexagonal phase. After annealing at 600 °C for 24 h, a transformation to the orthorhombic L-phase Nb2O5 occurred, which is also a high pressure phase.
Published Version
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