INFLUENCE OF OXYGEN ON CRYSTALLINE FULLERENE C-60 - A DSC STUDY

被引：33

作者：

DWORKIN, A ^{[1
]}

SZWARC, H ^{[1
]}

CEOLIN, R ^{[1
]}

机构：

[1] FAC PHARM TOURS,CHIM PHYS LAB,F-37042 TOURS,FRANCE

来源：

EUROPHYSICS LETTERS | 1993年 / 22卷 / 01期

关键词：

D O I：

10.1209/0295-5075/22/1/007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A C60 sample has been submitted to a 18 MPa oxygen pressure at room temperature and DSC thermograms have been recorded as a function of the evacuating time under a primary vacuum at 315 K. These thermograms exhibit the well-known phase transition at 258 K and also a lower-temperature broad effect whose temperature and enthalpy seem to depend on the oxygen concentration in the C60 powder. These observations support previous NMR work according to which the octahedral sites of C60 cubic lattice can be reversibly occupied by oxygen molecules; they reveal the resulting thermodynamic counterpart.

引用

页码：35 / 38

页数：4

共 5 条

[1] INTERCALATION OF MOLECULAR-SPECIES INTO THE INTERSTITIAL SITES OF FULLERENE [J].