Amorphous iron oxide prepared by microwave heating

被引:42
作者
Palchik, O [1 ]
Felner, I
Kataby, G
Gedanken, A
机构
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
[2] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[3] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
关键词
D O I
10.1557/JMR.2000.0313
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Amorphous iron oxide (Fe2O3) was prepared by the pyrolysis of iron pentacarbonyl [Fe(CO),I in a modified domestic microwave oven in refluxing chlorobenzene as a solvent under air. The reaction time was 20 min. Partially separated particles of iron oxide, 2-3 nm in diameter, were obtained. The other part showed aggregated spheres with a diameter of 25-40 nm. Differential scanning calorimetry measurements showed an amorphous/crystalline phase transition at about 250 degrees C.
引用
收藏
页码:2176 / 2181
页数:6
相关论文
共 33 条
[1]  
BATE G, 1980, FERROMAGNETIC MAT, V2, P405
[2]  
Bose AK, 1997, CHEMTECH, V27, P18
[3]   MICROWAVE-ASSISTED ORGANIC-REACTIONS [J].
CADDICK, S .
TETRAHEDRON, 1995, 51 (38) :10403-10432
[4]   HIGHLY EFFICIENT HETEROGENEOUS PHOTOOXIDATION OF 2-PROPANOL TO ACETONE WITH AMORPHOUS MANGANESE OXIDE CATALYSTS [J].
CAO, H ;
SUIB, SL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (12) :5334-5342
[5]   Synthesis of pure amorphous Fe2O3 [J].
Cao, X ;
Prozorov, R ;
Koltypin, Y ;
Kataby, G ;
Felner, I ;
Gedanken, A .
JOURNAL OF MATERIALS RESEARCH, 1997, 12 (02) :402-406
[6]  
Cornell R. M., 1996, The Iron Oxides
[7]   SELECTIVE CATALYTIC REDUCTION OF NITRIC-OXIDE OVER AMORPHOUS AND CRYSTALLINE CHROMIA .1. COMPARATIVE-STUDY OF ACTIVITIES [J].
CURRYHYDE, HE ;
MUSCH, H ;
BAIKER, A .
APPLIED CATALYSIS, 1990, 65 (02) :211-223
[8]   Sonochemical preparation and characterization of ultrafine chromium oxide and manganese oxide powders [J].
Dhas, NA ;
Koltypin, Y ;
Gedanken, A .
CHEMISTRY OF MATERIALS, 1997, 9 (12) :3159-3163
[9]   Characterization of sonochemically prepared unsupported and silica-supported nanostructured pentavalent molybdenum oxide [J].
Dhas, NA ;
Gedanken, A .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (46) :9495-9503
[10]  
ELLIOTT SR, 1984, PHYSICS AMORPHOUS MA, P350