Hydrothermal synthesis of nano-size zirconia using commercial zirconia powder: process optimization through response surface methodology
作者： Soosan Rowshanzamir , Ashkan Esmaeilifar , Amin Behbahani
关键词: Transmission electron microscopy 、 Hydrothermal circulation 、 Tetragonal crystal system 、 Crystallography 、 Mole fraction 、 Hydrothermal synthesis 、 Chemical engineering 、 Materials science 、 Cubic zirconia 、 Monoclinic crystal system 、 Scanning electron microscope
摘要: A hydrothermal method for preparation of nano-size zirconia has been studied to optimize the effective parameters (precursor concentration, temperature and time) using response surface methodology (RSM). The synthesized samples were characterized through X-ray diffraction (XRD), scanning electron microscope (SEM) transmission microscopy (TEM) analyses identify mean nanoparticles size powders molar fraction monoclinic tetragonal (or cubic) crystalline phases. Since, cubic phases are more valuable technological applications than phase, improving synthesis considered. analysis primary experimental data RSM optimization showed that a precursor concentration about 0.0092 mol L –1 , reaction 150 °C time 83.18 h optimum process conditions which give ~23 nm high (~70%) simultaneously.
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