Ultrasonically assisted hydrothermal synthesis of nanocrystalline ZrO2, TiO2, NiFe2O4 and Ni0.5Zn0.5Fe2O4 powders
نویسندگان
چکیده
منابع مشابه
Hydrothermal synthesis and characterization of Bi4Ti3O12 powders
The Bi4Ti3O12 powders were synthesized by a hydrothermal route. The influence of hydrothermal conditions on crystal structures and morphologies of Bi4Ti3O12 particles was studied. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), fourier transform infrared (FT–IR) spectroscopy and ultraviolet visible (UV-vis) spectroscopy. These results r...
متن کاملHydrothermal Synthesis of Dy-Doped BaTiO3 Powders
strict and expensive processes, which were commonly required for the removal of free CO2 present in the atmosphere. The prepared powders were found to be crystalline, pure, and contained no BaCO3 as an impurity phase. Pure and Dy-doped BaTiO3 powders synthesized at 90 8C had the pseudocubic (space group: Pm-3m) crystal structure. Grain growth characteristics of pure and Dy-doped BaTiO3 pellets ...
متن کاملElectrical Properties of Nb-, Ga-, and Y-Substituted Nanocrystalline Anatase TiO2 Prepared by Hydrothermal Synthesis
TiO2 Prepared by Hydrothermal Synthesis E. Mitchell Hopper, Frédéric Sauvage,§,¶,k Aravind Kumar Chandiran, Michael Grätzel, Kenneth R. Poeppelmeier,k and Thomas O. Mason Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208 Laboratory of Photonics and Interfaces, Institute of Chemistry and Chemical Engineering, Swiss Federal Institute of Technology (EPFL)...
متن کاملAqueous ZrO2 and YSZ Colloidal Systems through Microwave Assisted Hydrothermal Synthesis
In this paper, the formation of ZrO₂ and yttria-stabilised-zirconia (YSZ) aqueous colloidal systems via microwave assisted hydrothermal synthesis is studied. Microwave synthesis allows a fast screening of the influence of different parameters such as time and temperature. The temperature varied from 140 °C up to 180 °C and the used reaction time varied from 5 min up to 1 h. The synthesised zirc...
متن کاملSynthesis and Characterization of Hexagonal Shaped Nanocrystalline Zinc Oxide Powders
Nanocrystalline ZnO powders are synthesized using a quick, simple and inexpensive combustion method. Glycine and zinc nitrate, used as fuel and oxidant/cation sources respectively, were mixed together at room temperature to form a slurry or gel. A series of experiments were performed to synthesize nanoparticles for different fuel to oxidant ratios. The rate of heating and stirring greatly influ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ultrasonics Sonochemistry
سال: 2006
ISSN: 1350-4177
DOI: 10.1016/j.ultsonch.2004.12.002