English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Direct observation of surface isocyanate (NCO) formation during the CO+NO reaction on Pt{100}

Miners, J. H., Bradshaw, A. M., & Gardner, P. (1999). Direct observation of surface isocyanate (NCO) formation during the CO+NO reaction on Pt{100}. Physical Chemistry Chemical Physics, 1(20), 4909-4912. doi:10.1039/A905548G.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Miners, James H.1, Author           
Bradshaw, Alexander M.1, 2, Author           
Gardner, Peter3, Author
Affiliations:
1Fritz Haber Institute, Max Planck Society, ou_24021              
2Max-Planck Institute für Plasmaphysik, Garching, Germany, ou_persistent22              
3Department of Chemistry, Faraday Building, UMIST, UK, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: The NO+CO reaction on Pt{100} has been studied using in-situ vibrational spectroscopy (IRAS) under low reaction rate, non-oscillatory conditions. Using a total pressure of 7.5×10-7 mbar and a NO:CO ratio of 2:1, isocyanate (NCO) formation, characterised by an infrared absorption band at 2180 cm-1, is observed over a narrow temperature range, 400–380 K. We propose that NCO formation becomes favourable once the concentration of N atoms on the surface is low and, more importantly, when the diffusion of these atoms becomes severely hindered by the high coverage of CO. The stability of the NCO, above its normal dissociation temperature, is due to the vacant site requirement for the dissociation reaction. The fact that recombination to NCO occurs, after dissociation at 453 K, and in the absence of gas phase NO, indicates that the diffusion of N atoms is hindered even at this higher temperature.

Details

show
hide
Language(s): eng - English
 Dates: 1999-07-091999-08-201999
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1039/A905548G
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Chemistry Chemical Physics
  Abbreviation : Phys. Chem. Chem. Phys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Cambridge, England : Royal Society of Chemistry
Pages: 4 Volume / Issue: 1 (20) Sequence Number: - Start / End Page: 4909 - 4912 Identifier: ISSN: 1463-9076
CoNE: https://pure.mpg.de/cone/journals/resource/954925272413_1