Synthesis and characterization of nanowires Hausmannite (Mn3O4) by solid-state thermal decomposition

International Journal of Nano Dimension

مقاله 6، دوره 6، شماره 2، تیر 2015، صفحه 153-156   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.7508/ijnd.2015.02.005

نویسندگان

A. A. Dehno Khalaji^* ؛ F. Malekan

Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran.

چکیده

In this study, we synthesis one-dimensional (1D) manganese(III) Schiff base coordination polymer [Mn(Brsalophen)(μ_1,3-N₃)]_n by reaction of MnCl₂·6H₂O and tetradentate Schiff base ligand Brsalophen at the presence of NaN₃ in methanol and characterized by elemental analyses (CHN) and FT-IR spectroscopy. It was used as a new precursor to prepare spinel type manganese oxide nanowires by a facile solid-state thermal decomposition in air at 400ºC for 3.5 h. The crystallinity, purity and morphology of the Mn₃O₄ products were characterized by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM). The powder X-ray diffraction and scanning electron microscopy confirmed that the prepared Mn₃O₄ nanowires are pure single phases. The present method allows preparation of the Mn₃O₄ nanowires without expensive or toxic organic solvent and complicated equipment. The nanowires have a diameter about ≈25 nm and length exceeding 1.5 μm. It has potential to be applied as a general method for preparation of other transition metal oxide nanoparticles.

کلیدواژه‌ها

Manganese (III)؛ nanowires؛ Thermal decomposition؛ XRD؛ SEM