Abstract
Undoped and Al-doped ZnO (AZO) powders have been synthesized by hydrolytic and hydrothermal synthesis from Zn(NO3)2 , AlCl3 using KOH 1M concentraction like hydrolisis agent. The structural properties of prepared powders were studied using XRD and FTIR spectroscopy. Presence of aluminium in the hydrothermal powders is correlated with the presence of Zn-Al hydrotalcite like structure.
Highlights
Functional oxides especially as nanocrystalline materials are of particular interest due to their specific properties related with miniaturization tendency of the technological applications
Fourier transform infrared spectroscopy (FTIR) provides the information related to functional groups present in the sample, the molecular geometry, and intra or intermolecular interactions
FTIR was used to study the vibrational mode of the samples
Summary
Functional oxides especially as nanocrystalline materials are of particular interest due to their specific properties related with miniaturization tendency of the technological applications. Due to the high value of this ratio, the nanocrystalline material exhibits a much higher reactivity in the solid state reactions, which is important for the catalysts, and for the decomposition of the precursors in order to obtain functional oxides. Experimental part In the case of obtaining zinc oxide powders by hydrolytic synthesis we used zinc nitrate as a soluble precursor because the solubility of the inorganic salts of the same metal increases in the order of the perchlorate-perchloratenitrate. The co-precipitation process is based on the hydrolysis of mixed salt solutions: nitrates and chlorides, with hydrolysis agents (potassium hydroxide, KOH 1M), which allows molecular homogenization.
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