CARBON ONIONS PRODUCED BY HEAT-TREATMENT OF CARBON SOOT AND THEIR RELATION TO THE 217.5 NM INTERSTELLAR ABSORPTION FEATURE

被引：262
|
作者：
DEHEER, WA
UGARTE, D
机构：
[1] Institut de Physique Expérimentale, Ecole Polytechnique Fédérale de Lausanne
来源：
CHEMICAL PHYSICS LETTERS | 1993年 / 207卷 / 4-6期
关键词：
D O I：
10.1016/0009-2614(93)89033-E
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：
A new material containing macroscopic quantities of hollow nanometric carbon onions with from 2 to about 8 graphitic shells, with outer diameters ranging from 3 to 10 nm (characterized by high-resolution electron microscopy), is produced by heat treatment of pure carbon soot. Other structures (i.e. nanotubes) are also formed. Ultraviolet spectra of suspensions of this material in water reveal an absorption band with a peak absorption at 264 nm +/- 3 nm and with widths from 1.4 to 2.0 mum-1. Several features of the absorption spectra closely resemble the interstellar absorption band at 217 nm.
引用
收藏
页码：480 / 486
页数：7
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