سال انتشار: ۱۳۸۶
محل انتشار: دومین کنفرانس نانوساختارها
تعداد صفحات: ۲
Azam Nasirian – Department of Chemistry,Iran University of Science
Mehdi Kashani – Department of Chemistry,Iran University of Science
Abdolhamid Nasirian – Department of Biology , Islamic Azad university of Parand
In this paper Cu nanoparticles were prepared by reducing Cu salt with ethanol as the reducing agent and solvent in the presence of multidentate ligand poly vinyl pyrrolidone (PVP) under different conditions. The morphologies and the crystalline structures of the products were characterized by using scanning electron microscopy (SEM) , transmission electron microscopy (TEM) , and powder X-ray diffraction (XRD) . In particular, the influences of the solvothermal reaction temperature and alkalinity on the products were investigated. A lower temperature and a lower alkali concentration favor the formation of the Cu2O phase, whereas a higher temperature- and a higher alkali concentration generally lead to the formation of the Cu phase.