DEHYDROGENATION OF METHYLCYCLOHEXANE ON PT(111)

Authors
XU C KOEL BE NEWTON MA FREI NA CAMPBELL CT
Citation
C. Xu et al., DEHYDROGENATION OF METHYLCYCLOHEXANE ON PT(111), Journal of physical chemistry, 99(45), 1995, pp. 16670-16675
Citations number
37
Categorie Soggetti
Chemistry Physical
Journal title
Journal of physical chemistry → ACNP
ISSN journal
00223654
Volume
99
Issue
45
Year of publication
1995
Pages
16670 - 16675
Database
ISI
SICI code
0022-3654(1995)99:45<16670:DOMOP>2.0.ZU;2-K
Abstract
The mechanism of the dehydrogenation of methylcyclohexane (MCH) on Pt( 111) has been studied using HREELS, TPD, and BPTDS. Upon warming a mon olayer of MCH dosed at 100 K,congruent to 55% desorbs and congruent to 45% dehydrogenates to a pi-allylic species at congruent to 240 K. Thi s pi-allylic intermediate dehydrogenates further to a benzyl species a t congruent to 310 K. Adsorbed benzyl is stable up to congruent to 450 K on Pt(111), but at higher temperatures further dehydrogenation occu rs.