The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA CHEMIA - Issue no. 4 / 2016  
         
  Article:   SYNTHESIS OF COBALT FERRITE NANOPARTICLES VIA A SOL-GEL COMBUSTION METHOD .

Authors:  RAREȘ-ADRIAN BORTNIC, FIRUTA GOGA, AMALIA MESAROȘ, MIRCEA NASUI, BOGDAN STEFAN VASILE, ROXANA DUDRIC, ALEXANDRA AVRAM.
 
       
         
  Abstract:  VIEW PDF: Synthesis of Cobalt Ferrite Nanoparticles via a Sol-Gel Combustion Method

This paper presents the synthesis of CoFe2O4 nanoparticles via a sol-gel combustion method. Nanoparticles with the grain size in the range of 20-70 nm were synthesized using hydrated nitrates of cobalt and iron, sucrose and pectin. Sucrose was used as a polycondensation agent for the formation of the gel. The reaction mechanism for the gel formation is discussed in the paper. The addition of pectin facilitated the formation of a hard gel through the drying of the precursor solution at 200oC. Through a thermogravimetric analysis on the gel, the temperature at which the entire organic part has decomposed is concluded. The fine black nanopowder was obtained after a thermal treatment of the gel at a temperature of 700oC. Infrared spectroscopy (FT-IR) highlighted the presence, respectively the absence of organic compounds before and after the thermal treatment. Structural, morphological and magnetic measurements were conducted using X-ray diffraction (XRD), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM).

Keywords: CoFe2O4, Sol-gel, nanoparticles, magnetic, ferrite

Published Online: 2016-12
 
         
     
         
         
      Back to previous page