INTERACTION OF CCL4 WITH THE SURFACE OF AMORPHOUS ICE

被引：36

作者：

BLANCHARD, JL ^{[1
]}

ROBERTS, JT ^{[1
]}

机构：

[1] UNIV MINNESOTA,DEPT CHEM,MINNEAPOLIS,MN 55455

来源：

LANGMUIR | 1994年 / 10卷 / 09期

关键词：

D O I：

10.1021/la00021a064

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The temperature programmed desorption of CCl4 from amorphous ice films is described. Two distinct desorption states are observed, near 130 and 145 K. In contrast to most thermal desorption systems, the lower temperature state fills exclusively at low coverages, followed by the 145 K state at higher coverages. The two states are assigned to thermal desorption of CCl4 from ice and to sublimation of the condensed CCl4 phase, respectively. Both the frequency factor and the activation energy for CCl4 desorption from ice are greater than the frequency factor and activation energy for CCl4 sublimation. This difference is attributed to hydrophobic interactions between adsorbed CCl4 and the underlying ice layer.

引用

页码：3303 / 3310

页数：8

共 34 条

[1] INTERACTION OF HCL VAPOR WITH WATER-ICE - IMPLICATIONS FOR THE STRATOSPHERE [J].