Mechanosynthesis of Fe-doped SnO2 nanoparticles

✍ Scribed by A.F. Cabrera; A.M. Mudarra Navarro; C.E. Rodríguez Torres; F.H. Sánchez

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 176 KB
• Volume: 398
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2007.04.019

✦ Synopsis

Fe-doped nanosized SnO 2 powders were prepared by mechanosynthesis using rutile SnO 2 and hematite Fe 2 O 3 as starting materials. The estimated grain size of the obtained rutile structure was between 10 and 20 nm. Mo¨ssbauer spectroscopy shows the presence of two interactions corresponding to 3+ and 2+ iron oxidation states with similar relative fractions. The magnetic measurements exhibit ferromagnetic-(FML) and superparamagnetic-like (SML) behavior. Evidence of a system of strongly interacting particles was found.