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Weakly-agglomerated nanocrystalline (ZrO 2 ) 1−x (Yb 2 O 3 ) x (x=0.02–0.2) powders with high surface area (109–151 m 2 g −1 ) were synthesized by a two-step hydrothermal process in the presence of urea: a stock solution of metal nitrates and urea was heated at 80°C for 24 h and then at 180°C for 48 h. For x=0.04–0.2, the as-derived powders were...
Weakly-agglomerated and homogeneous (ZrO 2 ) 0.92 (Y 2 O 3 ) 0.08 (YSZ) nanocrystallites in pure cubic fluorite structure were synthesized by a hydrothermal method in the presence of urea. The adsorption of poly(vinyl alcohol) (PVA) and poly(ethylene glycol) (PEG) onto the surface of the as-synthesized YSZ nanocrystallites was measured...
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