Sonochemical synthesis and chracterization of Mn3O4 nanoparticles |
| |
Authors: | Abdulhadi Baykal Hüseyin Kavas Zehra Durmu? Mine Demir Sinan Kazan Ramazan Topkaya and Muhammet S Toprak |
| |
Institution: | (1) Institute of Nuclear Sciences, Ege University, Izmir, Turkey;(2) Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey |
| |
Abstract: | We report on the synthesis of Mn3O4 nanoparticles (NPs) using a novel sonochemical method without requiring any pH adjustment. Synthesized material was identified
as tetragonal hausmannite crystal structure model of Mn3O4 from XRD analysis. Crystallite size was estimated from x-ray line profile fitting to be 17±5 nm. FTIR analysis revealed stretching
vibrations of metal ions in tetrahedral and octahedral coordination confirming the crystal structure. TEM analysis revealed
a dominantly cubic morphology of NPs with an average size of ∼20 nm. Magnetic evaluation revealed a blocking temperature,
T
B of 40 K above which the material behaves paramagnetic. Asymmetric coercive field is attributed to the interaction between
ferromagnetic Mn3O4 and antiferromagnetic Mn oxide at the surface of nanoparticles.
![MediaObjects/11532_2010_37_Fig1_HTML.jpg](/content/W555676123837317/MediaObjects/11532_2010_37_Fig1_HTML.jpg) |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|