Niobium Dioxide
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Niobium dioxide, is the chemical compound with the formula NbO2. It is a bluish black non-stoichiometric solid with a composition range of NbO1.94-NbO2.09. It can be prepared by reacting Nb2O5 with H2 at 800-1350 °C. An alternative method is reaction of Nb2O5 with Nb powder at 1100 °C. The room temperature form NbO2 has a tetragonal, rutile-like structure with short Nb-Nb distances indicating Nb-Nb bonding. High temp form also has a rutile-like structure with short…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Niobium dioxide, is the chemical compound with the formula NbO2. It is a bluish black non-stoichiometric solid with a composition range of NbO1.94-NbO2.09. It can be prepared by reacting Nb2O5 with H2 at 800-1350 °C. An alternative method is reaction of Nb2O5 with Nb powder at 1100 °C. The room temperature form NbO2 has a tetragonal, rutile-like structure with short Nb-Nb distances indicating Nb-Nb bonding. High temp form also has a rutile-like structure with short Nb-Nb distances. Two high pressure phases have been reported one with a rutile-like structure, again with short Nb-Nb distances, and a higher pressure with baddeleyite-related structure.