Reactions of azomethane on a clean, H-covered, and O-covered Pt(111) surface

P. Berlowitz, B. L. Yang, J. B. Butt, Harold H Kung

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)69-82
Number of pages14
JournalSurface Science
Volume171
Issue number1
DOIs
Publication statusPublished - May 1 1986

Fingerprint

Hydrogen
hydrogen
products
Diazomethane
cyanogen
Acetylene
Methane
Dehydrogenation
Carbon Monoxide
Temperature programmed desorption
dehydrogenation
acetylene
Ethylene
ethylene
methane
desorption
azomethane
Oxygen
oxygen
temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Reactions of azomethane on a clean, H-covered, and O-covered Pt(111) surface. / Berlowitz, P.; Yang, B. L.; Butt, J. B.; Kung, Harold H.

In: Surface Science, Vol. 171, No. 1, 01.05.1986, p. 69-82.

Research output: Contribution to journalArticle

Berlowitz, P. ; Yang, B. L. ; Butt, J. B. ; Kung, Harold H. / Reactions of azomethane on a clean, H-covered, and O-covered Pt(111) surface. In: Surface Science. 1986 ; Vol. 171, No. 1. pp. 69-82.
@article{1c4ea98f1ba548808acc30111caadc8a,
title = "Reactions of azomethane on a clean, H-covered, and O-covered Pt(111) surface",
abstract = "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.",
author = "P. Berlowitz and Yang, {B. L.} and Butt, {J. B.} and Kung, {Harold H}",
year = "1986",
month = "5",
day = "1",
doi = "10.1016/0039-6028(86)90562-5",
language = "English",
volume = "171",
pages = "69--82",
journal = "Surface Science",
issn = "0039-6028",
publisher = "Elsevier",
number = "1",

}

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, Harold H

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 -