| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a practical carbon layer coated transition metal nano structure. <P>SOLUTION: Anhydrous chloride expressed by a general expression MCl<SB>2</SB>(M=Fe, Co, or Ni) and calcium carbide fine powder are heated (first heat treatment) in an acetonitrile solvent, thus manufacturing nano powder that has M-C<SB>2</SB>-M bonding, shows a tetragonal structural skeleton, and is made of a transition metal acetylide compound (M=Fe, Co, or Ni) expressed by a general expression comprising MC<SB>2</SB>. Then, the nano powder is heated to at least heating temperature in the first heat treatment for performing second heat treatment, thus forming the carbon layer coated transition metal nano structure having a metal core made of the transition metal of Fe, Co, or Ni and a carbon layer formed while the periphery of the metal core is coated. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
