Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/75818
Title: Coordination and reaction mechanism of furan on Ru(001)
Authors: Yan, F.Q.
Qiao, M.H.
Wei, X.M. 
Liu, Q.P. 
Deng, J.F.
Xu, G.Q. 
Issue Date: 1-Nov-1999
Citation: Yan, F.Q.,Qiao, M.H.,Wei, X.M.,Liu, Q.P.,Deng, J.F.,Xu, G.Q. (1999-11-01). Coordination and reaction mechanism of furan on Ru(001). Journal of Chemical Physics 111 (17) : 8068-8076. ScholarBank@NUS Repository.
Abstract: The surface chemistry of furan adsorbed on Ru(001) at 80 K has been explored using thermal desorption spectroscopy, x-ray and ultraviolet photoelectron spectroscopies and high resolution electron energy loss spectroscopy (HREELS). Furan adsorption follows a three-dimensional island growth mode. Three desorption peaks, corresponding to multilayer, second layer, and monolayer were identified at 117, 142 and 220 K, respectively. Monolayer species strongly bind to the surface, showing a much lower O(1 s) binding energy (532.9 eV) as compared to the physisorbed furan (534.8 eV). HREELS reveals that within the monolayer, there are two different chemisorbed species with molecular rings oriented either tilted or parallel to the surface. By annealing the surface to 180 K, the parallel furan π complex undergoes α-C electrophilic addition and H elimination, forming the tilted α-furyl species and Ru-H. The α-furyl can either recombine with hydrogen to form furan desorbing between 180 and 250 K, or decompose to give adsorbed oxygen atoms and a metallocyclelike intermediate through a direct oxygen abstraction mechanism. Further thermal annealing leads to the formation of carbon monoxide and hydrogen desorbing from the surface. © 1999 American Institute of Physics.
Source Title: Journal of Chemical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/75818
ISSN: 00219606
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

26
checked on Nov 3, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.