عنوان : ( The Effect of Temperature on Synthesizing Nickel nanoparticles and SiO2/Ni core/shell structure and investigation their physical properties )
نویسندگان: فاطمه جعفری-دانشجو , الهام خراشادی زاده , هادی عربی ,
Full Textچکیده
The synthesis of nickel nanoparticles by chemical reduction in aqueous solution without using nitrogen or argon was studied. By the analyses of x-ray diffraction and using Scherrer formula, it was observed fcc structure and average particle size of 30nm. Spherical particles are in accordance with TEM pictures. Magnetic measurements was done by vibrating sample magnetometer(VSM). The size of particles increased with increasing temperature and calcination at 370° C didn’t need vaccum conditions. Then core/shell structure was synthesized by controlling surface charge in aqueous solutions. Oxidizing of core/shell structure is less than Ni nanoparticles. According to magnetic measurements saturation magnetization of core/shell structure is less than Ni nanoparticles
کلمات کلیدی
, nickel nanoparticles, core/SiO2/Ni core/shellm , Magnetic, Magnetic, Physical properties
@inproceedings{paperid:1038983,
author = {فاطمه جعفری-دانشجو and الهام خراشادی زاده and عربی, هادی},
title = {The Effect of Temperature on Synthesizing Nickel nanoparticles and SiO2/Ni core/shell structure and investigation their physical properties},
booktitle = {کنفرانس فیزیک ایران 1392},
year = {2013},
location = {بیرجند, ايران},
keywords = {nickel nanoparticles; core/SiO2/Ni core/shellm ; Magnetic; Magnetic; Physical properties},
}
%0 Conference Proceedings
%T The Effect of Temperature on Synthesizing Nickel nanoparticles and SiO2/Ni core/shell structure and investigation their physical properties
%A فاطمه جعفری-دانشجو
%A الهام خراشادی زاده
%A عربی, هادی
%J کنفرانس فیزیک ایران 1392
%D 2013
