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Tungsten oxide hydrate nanoplates with expanded surface area have been synthesized through the acid treatment of tungstate−aluminum keggin nanocomposite. According to powder X-ray diffraction and W L III -edge X-ray absorption spectroscopic analyses, X-ray amorphous nanocomposite is changed into crystalline WO 3 ·2H 2 O upon the acidic etching of alumina component. Nitrogen...
Homogeneous and stoichiometric lanthanum-modified lead zirconium titanate (Pb0.92La0.08)(Zr0.65Ti0.35)O3 (PLZT) particles with a nanometer size of 20–40 nm have been prepared by the citrate route. The solubility isotherms for individual metal-citric acid-H2O systems at 25 °C were calculated to predict the optimum pH condition, which was found to be 6.5 for preparing pure and stable citrate complexes...
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