Mössbauer and EXAFS studies of amorphous iron produced by thermal decomposition of carbonyl iron in liquid phase |
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Authors: | Kiyoshi Nomura Junichi Tanaka Yusuke Ujihira Tamotu Takahashi Yasuzo Uchida |
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Institution: | (1) Faculty of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyoku, 113 Tokyo, Japan |
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Abstract: | Decomposition of iron carbonyl Fe(CO)5 and Fe2(CO)9 in liquid phase gave amorphous and crystalline iron powders in the absence and presence of catalyst, respectively. The hyperfine
fields were large in amorphous phases prepared from Fe(CO)5 than from Fe2(CO)9. Crystalline iron, iron carbide and a trace amount of Fe3O4 were detected in the decomposition products of the amorphous phase prepared from Fe(CO)5, and iron carbide was mainly included in the decomposition products of the amorphous phase prepared from Fe2(CO)9. |
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