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(KxNa1−x)NbO3 (KNN) powders with sheet-like morphologies were successfully prepared by the hydrothermal synthesis route combined with subsequent heat-treatment processes. When the heat-treated temperature was 600°C, the (KxNa1−x) NbO3 (0.6≤x≤0.7) perovskite sheets were obtained in the KNN powders. The surface morphology and crystal structure of the KNN sheets were investigated by scanning electron...
Monoclinic (KxNa1−x)NbO3 (0.05≤x≤0.15) rods were prepared successfully by the hydrothermal synthesis method combined with dissolution–precipitation and subsequent heat-treatment processes. At first, the primary precipitate of the niobate precursor was obtained using Nb2O5, KOH and NaOH as the initial reactants, and deionized water as the solvent for the hydrothermal synthesis. Interestingly, when...
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