The effect of neutralizing agent on the synthesis and characterization of Mn 3 O 4 nanoparticles

Z. Durmus, M. Tomas, A. Baykal*, H. Kavas, T. Gürkaynak Altınçekiç, M. S. Toprak

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We report on the synthesis of Mn 3 O 4 nanoparticles via a two-step hydrothermal route by using Mn(CH 3 COO) 2 as the only starting material and TMAOH and NaOH as hydrolysing agents. XRD and FT-IR analyses confirmed the composition and structure of Mn 3 O 4 . TEM images showed that spheroid Mn 3 O 4 nanostructures obtained by this method have average particle size of 6 and 14 nm for NaOH and TMAOH hydrolyzed samples respectively. Particle size analysis indicated a strong aggregation of nanoparticles and exhibited bi-modal distribution with average size of aggregates as ̃250 nm and 1.1 μm for both samples. Zeta potential analysis revealed adsorbed TMAOH species on the surface of Mn 3 O 4 nanoparticles hydrolyzed using TMAOH. ESR analyses resulted in broader lines and smaller g values than bulk Mn 3 O 4 nanoparticles, probably due to the exchange-coupled system with unlike spins such as canted spin at surface of high-surface-disordered nanoparticles.

Original languageEnglish
Pages (from-to)1947-1952
Number of pages6
JournalRussian Journal of Inorganic Chemistry
Issue number12
Publication statusPublished - Dec 2010
Externally publishedYes


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