一酸化炭素の水素化反応中のFe1-xNix合金媒触の挙動

概要

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Behavior of Fe1-xNix alloy catalysts during the hydrogenation of CO was studied by Mossbauer spectroscopy and X-ray diffraction analysis. The behavior depends on the crystal structure and composition of the alloy. In a case x=0, α Fe was converted into ε Fe2.2C and χ Fe5C2, and after a long period of catalyst utilization χ Fe5C2 became a majority of the catalyst. Bcc Fe1-xNix (0<x≤0.20) was converted into ε (Fe1-xNix)2.2C, whereas no carbides were formed from fcc Fe1-xNix (0.55≤x≤0.85). Carbon atoms solved into the fcc lattice and formed a fcc solid solution, Fe1-xNixCy. Ni was stable during the catalyst utilization.
社団法人粉体粉末冶金協会の論文