Interaction of acetylene with the Ru(001) surface

Journal Article · Wed Jun 25 00:00:00 EDT 1986 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00273a003· OSTI ID:5583557

Parmeter, J E; Hills, M M; Weinberg, W H

The adsorption and decomposition of acetylene on the hexagonally close-packed Ru(001) surface has been studied by using high-resolution electron energy loss spectroscopy and thermal desorption mass spectrometry. Below 230 K, acetylene is molecularly adsorbed on this surface with rehybridization of the acetylenic carbon atoms to nearly sp/sup 3/ occurring. Between 230 and 250 K, the acetylene undergoes both dehydrogenation and hydrogenation reactions, resulting in the formation of two stable surface intermediates, ethylidyne (CCH/sub 3/) and acetylide (CCH). Both the ethylidyne and the acetylide decompose near 350 K, accompanied by hydrogen desorption and leaving only methylidyne (CH) and carbon adatoms on the surface. The methylidyne decomposes with hydrogen evolution into the gas phase between approximately 480 and 700 K.

• Research Organization: California Institute of Technology, Pasadena
• OSTI ID: 5583557
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:13; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ACETYLENE
ALKYNES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CRYSTALS
DATA
DESORPTION
DEUTERIUM COMPOUNDS
ELEMENTS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
ISOTOPE EFFECTS
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
MONOCRYSTALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PLATINUM METALS
RUTHENIUM
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENTS