Abstract
In the presence of 1,12-diaminododecane (DADD), tetragonal ZrO 2 nanoparticles (ca. 10 nm) with high phase purity (monoclinic volume content: less than 0.1) and large surface area (100 m 2/g) and pure monoclinic ZrO 2 nanorods (aspect ratio of ca. 10) have been successfully prepared upon hydrothermal processing at 230 °C for 3 days of zirconyl nitrate-derived hydrous zirconia gels at different pH values. The complementary data from FTIR, Raman, TGA/DTG confirm the presence of hydrocarbon fragments (1–3 wt%) on the surface of DADD-derived zirconia nanocrystals. These organic residues account for their features in the phase composition, particle size and morphology, and surface wettability.
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