Hollow and filled rectangular parallelopiped carbon nanocapsules catalyzed by calcium and strontium

被引:4
作者
Saito, Y [1 ]
Matsumoto, T [1 ]
机构
[1] Mie Univ, Dept Elect & Elect Engn, Tsu, Mie 514, Japan
关键词
nanoparticle; carbon nanocapsule; graphite; calcium; strontium;
D O I
10.1016/S0022-0248(98)00013-X
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
A new form of graphitic cages in nanometer scale, rectangular parallelopiped (or cube), was produced by are evaporation of a carbon electrode containing calcium or strontium. Both the empty and the filled rectangular nanocapsules averaging 20-100 nm in size were formed, though the empty ones were dominant. The rectangular cages were made up of multi-walled (5-20 layers) graphitic carbon. The encapsulated materials were beta-CaC2(tetragonal), gamma-CaC2(cubic) and delta-CaC2 (monoclinic) for C/Ca evaporation, and beta-SrC2 (tetragonal) and metallic Sr for C/S revaporation. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:402 / 409
页数:8
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