The effect of neutralizing agent on the synthesis and characterization of Mn3O4 nanoparticles

被引：8

作者：

Durmus, Z. ^{[1
]}

Tomas, M. ^{[1
]}

Baykal, A. ^{[1
]}

Kavas, H. ^{[2
]}

Altincekic, T. Gurkaynak ^{[3
]}

Toprak, M. S. ^{[4
]}

机构：

[1] Fatih Univ, Dept Chem, TR-34500 Istanbul, Turkey

[2] Fatih Univ, Dept Phys, TR-34500 Istanbul, Turkey

[3] Istanbul Univ, Dept Chem Engn, TR-34320 Avcilar, Turkey

[4] Royal Inst Technol KTH, Div Funct Mat, SE-16440 Stockholm, Sweden

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2010年 / 55卷 / 12期

关键词：

LOW-TEMPERATURE SYNTHESIS; OXIDATION; OXIDES; HAUSMANNITE; ROUTE;

D O I：

10.1134/S0036023610120211

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

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.

引用

页码：1947 / 1952

页数：6

共 32 条

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