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The effect of neutralizing agent on the synthesis and characterization of Mn3O4 nanoparticles
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2010 (English)In: Russian Journal of Inorganic Chemistry, ISSN 0036-0236, Vol. 55, no 12, 1947-1952 p.Article in journal (Refereed) Published
Abstract [en]

We report on the synthesis of Mn3O4 nanoparticles via a two-step hydrothermal route by using Mn(CH3COO)(2) as the only starting material and TMAOH and NaOH as hydrolysing agents. XRD and FT-IR analyses confirmed the composition and structure of Mn3O4. TEM images showed that spheroid Mn3O4 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 similar to 250 nm and 1.1 mu m for both samples. Zeta potential analysis revealed adsorbed TMAOH species on the surface of Mn3O4 nanoparticles hydrolyzed using TMAOH. ESR analyses resulted in broader lines and smaller g values than bulk Mn3O4 nanoparticles, probably due to the exchange-coupled system with unlike spins such as canted spin at surface of high-surface-disordered nanoparticles.

Place, publisher, year, edition, pages
2010. Vol. 55, no 12, 1947-1952 p.
Keyword [en]
LOW-TEMPERATURE SYNTHESIS, CATALYTIC COMBUSTION, MANGANESE OXIDE, OXIDATION, NANOCRYSTALS, HAUSMANNITE, ROUTE, CO3O4
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-28178DOI: 10.1134/S0036023610120211ISI: 000285097100021Scopus ID: 2-s2.0-78650656399OAI: oai:DiVA.org:kth-28178DiVA: diva2:385269
Funder
Knut and Alice Wallenberg Foundation, UAW2004.0224
Note
QC 20110111Available from: 2011-01-11 Created: 2011-01-10 Last updated: 2011-01-11Bibliographically approved

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Toprak, Muhammet S.

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