TDS study of ethylene on clean and Cs pre-covered Ru(0001) surface

Authors
Zhuang, YY Wu, Y Zhang, JH Zhang, HJ Li, B Li, HY He, PM Bao, SN
Citation
Yy. Zhuang et al., TDS study of ethylene on clean and Cs pre-covered Ru(0001) surface, ACT PHY C E, 50(6), 2001, pp. 1185-1188
Citations number
14
Categorie Soggetti
Physics
Journal title
ACTA PHYSICA SINICA
ISSN journal
10003290 → ACNP
Volume
50
Issue
6
Year of publication
2001
Pages
1185 - 1188
Database
ISI
SICI code
1000-3290(200106)50:6<1185:TSOEOC>2.0.ZU;2-U
Abstract
The ethylene( Ct H,)adsorbed on Ru(0001)surface has been studied by using t hermal desorption spectroscopy( TDS). The results show that ethylene (C2H4) absorbs in molecular state on Ru(0001)surface stably below 200 K. The dehyd rogenation of ethylene occurs st 200 K. The main product of the dehydrogena tion of the absorbed ethylene(C2H4) is acetylene (C2H2). The Te are two ads orption states of ethylene on the clean Ru(0001) surface. Their desorption temperature is 275 K and 360 K respectively. The desorption temperature of acetylene is 350 K. The desorption temperature of both acetylene and ethyle ne rises with increasing Cs coverage.