Nanosized copper ferrite materials: Mechanochemical synthesis and characterization

被引：48

作者：

Manova, Elina ^{[2
]}

Tsoncheva, Tanya ^{[1
]}

Paneva, Daniela ^{[2
]}

Popova, Margarita ^{[1
]}

Velinov, Nikolay ^{[2
]}

Kunev, Boris ^{[2
]}

Tenchev, Krassimir ^{[2
]}

Mitov, Ivan ^{[2
]}

机构：

[1] Bulgarian Acad Sci, Ctr Phytochem, Inst Organ Chem, BU-1113 Sofia, Bulgaria

[2] Bulgarian Acad Sci, Inst Catalysis, BU-1113 Sofia, Bulgaria

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 05期

关键词：

Mechanochemical synthesis; Copper ferrite; Mossbauer spectroscopy; Methanol decomposition; Toluene oxidation; MAGNETIC-PROPERTIES; CUFE2O4; NANOPARTICLES; HYDROGEN-PRODUCTION; DIMETHYL ETHER; SPINEL; REDUCTION; MOSSBAUER; CATALYST; DECOMPOSITION; PARTICLES;

D O I：

10.1016/j.jssc.2011.03.035

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanodimensional powders of cubic copper ferrite are synthesized by two-steps procedure of co-precipitation of copper and iron hydroxide carbonates, followed by mechanochemical treatment. X-ray powder diffraction, Mossbauer spectroscopy and temperature-programmed reduction are used for the characterization of the obtained materials. Their catalytic behavior is tested in methanol decomposition to hydrogen and CO and total oxidation of toluene. Formation of nanosized ferrite material is registered even after one hour of milling time. It is established that the prolonging of treatment procedure decreases the dispersion of the obtained product with the appearance of Fe2O3. It is demonstrated that the catalytic behavior of the samples depends not only on their initial phase composition, but on the concomitant ferrite phase transformations by the influence of the reaction medium. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：1153 / 1158

页数：6

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