Preparation of nanostructured NiFe2O4 catalysts by combustion reaction

被引：67
|
作者：
Costa, A. C. F. M.
Lula, R. T.
Kiminami, R. H. G. A.
Gama, L. F. V.
de Jesus, A. A.
Andrade, H. M. C.
机构：
[1] Univ Fed Sao Carlos, Dept Mat Engn, Sao Carlos, SP, Brazil
[2] Fed Univ Campina Grande, Dept Mat Engn, Campina Grande, PB, Brazil
[3] Univ Fed Bahia, Inst Chem, Salvador, BA, Brazil
来源：
JOURNAL OF MATERIALS SCIENCE | 2006年 / 41卷 / 15期
关键词：
D O I：
10.1007/s10853-006-0048-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanosize nickel ferrite powders (NiFe2O4) have been prepared by combustion reaction using nitrates and urea as fuel. The resulting powders were characterized by X-ray diffraction (XRD), nitrogen physical adsorption (BET), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and catalytic activity. The results showed nanosize nickel ferrite powders with high specific surface area (55.21 m(2)/g). The powders showed extensive XRD line broadening and the crystallite size calculated from the XRD line broadening was 18.0 nm. The nickel ferrite powder presented significant activity as catalyst for the water gas shift reaction, over the temperature range of 250-450 degrees C.
引用
收藏
页码：4871 / 4875
页数：5
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