NEGATIVE CLUSTER ION FORMATION FROM WATER ICE IN HIGH ELECTRIC-FIELDS

被引：13
|
作者：
STINTZ, A
PANITZ, JA
机构：
[1] Department of Physics and Astronomy, University of New Mexico, Albuquerque
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1994年 / 133卷 / 01期
关键词：
FIELD DESORPTION MICROSCOPY; FIELD ELECTRON EMISSION; NEGATIVE WATER CLUSTER IONS; AMORPHOUS ICE;
D O I：
10.1016/0168-1176(94)03947-X
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The first experimental observation of negative water ion clusters by field desorption is presented. Ions of the form (H2O)n.OH-, with n = 1-8, are detected. The ions are produced by desorbing thin layers of water ice from a metal substrate in the presence of a high electric field by increasing the temperature of the substrate. The electric field strength is below the minimum field required for detectable electron emission from the clean metal substrate surface. Ion emission occurs from localized areas of the surface, and an electrohydrodynamic ion emission mechanism is proposed.
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页码：59 / 64
页数：6
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