The effect of chelating/combustion agent on catalytic activity and magnetic properties of Dy doped Ni-Zn ferrite

被引：48

作者：

Samoila, P. ^{[1
]}

Slatineanu, T. ^{[1
]}

Postolache, P. ^{[2
]}

Iordan, A. R. ^{[1
]}

Palamaru, M. N. ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Chem, Iasi 700506, Romania

[2] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2012年 / 136卷 / 01期

关键词：

Nanostructures; Fourier transform infrared spectroscopy; X-ray diffraction; Electron microscopy; Magnetic properties; HYDROGEN-PEROXIDE DECOMPOSITION; OXIDATIVE DEHYDROGENATION; COMBUSTION SYNTHESIS; PRECURSOR METHOD; ZNFE2O4; ZINC; NANOCRYSTALS; CO; SM; NANOPARTICLES;

D O I：

10.1016/j.matchemphys.2012.06.059

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spinet ferrite Ni0.8Zn0.2Fe1.98Dy0.02O4 was prepared by sol-gel low temperature autocombustion method using four different chelating/combustion agents: citric acid, tartaric acid, urea and cellulose. Infrared spectroscopy (IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET) specific surface area measurement, the catalytic H2O2 decomposition and the magnetic behavior were employed to investigate the influence of the combustion agents on structural characteristics, catalytic activity and magnetic properties. Spinel-type phase in the nano-scale domain was accomplished during sol-gel synthesis and was confirmed by XRD and IR. The best catalytic activity is belonging to the sample obtained using urea, which shows the smallest grain size (SEM), the highest specific surface area (BET measurements) and DyFeO3 phase (XRD), while ferrimagnetic behavior prevails for all the samples independently of fuel agent. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：241 / 246

页数：6

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