A FOURIER-TRANSFORM MASS-SPECTROMETER FOR SURFACE-ANALYSIS BY LASER-INDUCED THERMAL-DESORPTION OF MOLECULAR ADSORBATES

被引：27
|
作者：
LAND, DP [1 ]
PETTIETTEHALL, CL [1 ]
SANDER, D [1 ]
MCIVER, RT [1 ]
HEMMINGER, JC [1 ]
机构：
[1] UNIV CALIF IRVINE,INST SURFACE & INTERFACE SCI,IRVINE,CA 92717
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 1990年 / 61卷 / 06期
关键词：
D O I：
10.1063/1.1141131
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A Fourier transform mass spectrometer (FTMS) for ultrahigh-vacuum surface studies is described. The instrument incorporates standard surface analysis techniques such as Auger electron spectroscopy (AES), low-energy electron diffraction (LEED), and Ar ion sputtering, along with laser-induced thermal desorption (LITD) and thermal desorption spectroscopy (TDS) using FTMS detection, to perform surface analysis of metal samples. The manipulator allows temperature control of the samples between 110 and 1300 K. Using the LITD/FTMS surface reaction intermediates and kinetics are studied for the dehydrogenation of ethylene and cyclohexane on Pt(111). Relative sensitivities between AES and LITD/FTMS are discussed.
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页码：1674 / 1684
页数：11
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