TY - JOUR
T1 - Reactions of azomethane on a clean, H-covered, and O-covered Pt(111) surface
AU - Berlowitz, P.
AU - Yang, B. L.
AU - Butt, J. B.
AU - Kung, H. H.
N1 - Funding Information:
This work was supported by the Basic Research Department, Gas Research Institute. We thank one of the referees for the suggestion to look for cyanogen as a product.
PY - 1986/5/1
Y1 - 1986/5/1
N2 - The reactions of azomethane were studied on a clean, H-covered, and O-covered Pt(111) surface at different coverages of azomethane, and ratios of hydrogen or oxygen to azomethane, by temperature programmed desorption. On a clean surface, dehydrogenetion, together with breaking of the NN bond to produce HCN and H2 were the major reactions. Small amounts of methylamine and cyanogen were also observed. On an H-covered surface at high hydrogen coverage, methane was the dominant product, in addition to H2. This adsorbed hydrogen promoted breaking of the CN bond. In addition, the dehydrogenation product HCN was also observed, as was methylamine. On the O-covered surface, CO, CO2, H2O, and small amounts of NO were observed together with the products typical for a clean surface. Comparison of the results with those for acetylene, ethylene, and diazomethane is made.
AB - The reactions of azomethane were studied on a clean, H-covered, and O-covered Pt(111) surface at different coverages of azomethane, and ratios of hydrogen or oxygen to azomethane, by temperature programmed desorption. On a clean surface, dehydrogenetion, together with breaking of the NN bond to produce HCN and H2 were the major reactions. Small amounts of methylamine and cyanogen were also observed. On an H-covered surface at high hydrogen coverage, methane was the dominant product, in addition to H2. This adsorbed hydrogen promoted breaking of the CN bond. In addition, the dehydrogenation product HCN was also observed, as was methylamine. On the O-covered surface, CO, CO2, H2O, and small amounts of NO were observed together with the products typical for a clean surface. Comparison of the results with those for acetylene, ethylene, and diazomethane is made.
UR - http://www.scopus.com/inward/record.url?scp=0002143515&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0002143515&partnerID=8YFLogxK
U2 - 10.1016/0039-6028(86)90562-5
DO - 10.1016/0039-6028(86)90562-5
M3 - Article
AN - SCOPUS:0002143515
VL - 171
SP - 69
EP - 82
JO - Surface Science
JF - Surface Science
SN - 0039-6028
IS - 1
ER -