TY - JOUR T1 - Effect of capping agent on the optical and structural properties of cobalt oxide nanoparticles TT - تاثیر عامل پوششی بر روی خواص اپتیکی و ساختاری نانوذرات اکسید کبالت JF - opsi JO - opsi VL - 21 IS - 0 UR - http://opsi.ir/article-1-525-en.html Y1 - 2015 SP - 333 EP - 336 KW - Cobalt oxide KW - capping agent KW - optical properties N2 - In this research, Cobalt oxide nanoparticles have been prepared in different sizes using ultrasound waves by adding different concentrations of oleic acid as a capping agent. The structural properties of the prepared compounds have been investigated using X- ray diffraction (XRD). The mean particle size was calculated using Debye-Scherer equation. Optical properties of the prepared nanostructures have been investigated using ultraviolet-visible (UV-Vis) and Fourier transform infrared (FTIR) spectroscopies. The surface morphology of the prepared nanostructure has been investigated using scanning electron microscopy, which shows formation of spherical cobalt oxide nanoparticles M3 ER -