Surface chemistry of alkyl and perfluoro ethers: a Fourier transform infrared study of adsorption and decomposition of CF3OCF2OCF3 on Al2O3 surface

Authors
Li, P Ng, LM Liang, J
Citation
P. Li et al., Surface chemistry of alkyl and perfluoro ethers: a Fourier transform infrared study of adsorption and decomposition of CF3OCF2OCF3 on Al2O3 surface, SURF SCI, 469(1), 2000, pp. 1-8
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
469
Issue
1
Year of publication
2000
Pages
1 - 8
Database
ISI
SICI code
0039-6028(200012)469:1<1:SCOAAP>2.0.ZU;2-T
Abstract
The interaction of CF3OCF2OCF3 on Al2O3 surface was investigated by Fourier transform infrared (FTIR) under both 'vacuum' and 'pressure' conditions. I t was found that CF3OCF2OCF3 decomposed only under 'pressure' conditions. F luoroformate FCOO (ads) was formed and stayed adsorbed on the surface up to 550 K. The reactivities of CF3OCF2OCF3 and CF3OCF3 on Al2O3 surface are co mpared and the reaction mechanisms are also discussed. (C) 2000 Elsevier Sc ience B.V. All rights reserved.