Graphite intercalation compounds of lanthanide metals prepared in molten chlorides

被引:31
作者
Hagiwara, R [1 ]
Ito, M [1 ]
Ito, Y [1 ]
机构
[1] KYOTO UNIV,DEPT NUCL ENGN,SAKYO KU,KYOTO 60601,JAPAN
关键词
graphite; intercalation; lanthanide; molten salt; disproportionation; neodymium; samarium; dysprosium; erbium; ytterbium;
D O I
10.1016/S0008-6223(96)00109-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Graphite intercalation compounds of several lanthanide metal donors (Nd, Sm, Dy, Er and Yb) have been prepared by interacting graphite and metals in molten chlorides. These lanthanide metals are suspended in molten chlorides at lower than 400 degrees C in the presence of their trichlorides via disproportionation equilibrium: 3Ln(II) = Ln(O) + 2Ln(III). In this condition, one can avoid the formation of carbides in the reaction product. The X-ray powder diffraction patterns for all the lanthanide GICs prepared suggest they belong to the hexagonal EuC6-structure type. Copyright (C) 1996 Elsevier Science Ltd
引用
收藏
页码:1591 / 1593
页数:3
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