Sonochemical synthesis and chracterization of Mn3O4 nanoparticles

QC 20100525
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 similar to 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.

Kavas, Hueseyin (författare)
Durmus, Zehra (författare)
Demir, Mine (författare)
Kazan, Sinan (författare)
Topkaya, Ramazan (författare)
Toprak, Muhammet S.KTH,Funktionella material, FNM(Swepub:kth)u1u3m5a2 (författare)
KTHFunktionella material, FNM (creator_code:org_t)

Ingår i:Central European Journal of Chemistry: Walter de Gruyter GmbH8:3, s. 633-6381895-1066
Ingår i:Open Chemistry: Walter de Gruyter GmbH8:3, s. 633-6382391-5420

Av författaren/redakt...: Baykal, Abdulhad ...; Kavas, Hueseyin; Durmus, Zehra; Demir, Mine; Kazan, Sinan; Topkaya, Ramazan; visa fler...; Toprak, Muhammet ...; visa färre...

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