scholarly journals Activity of Pdn (n = 1–5) Clusters on Alumina Film on Ni3Al(111) for CO Oxidation: A Molecular Beam Study

2021 ◽  
Author(s):  
Georges Sitja ◽  
Claude R. Henry
Keyword(s):  
Co Oxidation ◽  
Molecular Beam ◽  
Alumina Film

Molecular beam study of CO oxidation on a (111) platinum surface

1974 ◽  
Vol 60 (4) ◽  
pp. 1453-1463 ◽  
Author(s):  
Robert L. Palmer ◽  
Joe N. Smith
Keyword(s):  
Co Oxidation ◽  
Molecular Beam ◽  
Platinum Surface

Molecular Beam Studies of Co Oxidation on Rh(110)

1991 ◽  
pp. 409-416 ◽  
Author(s):  
M. Bowker ◽  
Q. Guo ◽  
P.D.A. Pudney ◽  
R.W. Joyner
Keyword(s):  
Co Oxidation ◽  
Molecular Beam

CO oxidation on Pd(110): a high-resolution XPS and molecular beam study

1999 ◽  
Vol 439 (1-3) ◽  
pp. 235-248 ◽  
Author(s):  
Isabel Z. Jones ◽  
Roger A. Bennett ◽  
Michael Bowker
Keyword(s):  
High Resolution ◽  
Co Oxidation ◽  
Molecular Beam

Infrared Chemiluminescence Study of Excited CO2Produced by Molecular-Beam CO Oxidation on Pt(111)

1995 ◽  
Vol 24 (8) ◽  
pp. 633-634 ◽  
Author(s):  
Hiroshi Uetsuka ◽  
Koji Watanabe ◽  
Kimio Kunimori
Keyword(s):  
Co Oxidation ◽  
Molecular Beam

scholarly journals Carbon Monoxide Oxidation over Gold Nanoparticles Deposited onto Alumina Film Grown on Mo(110) Substrate: An Effect of Charge Tunneling through the Oxide Film

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 485
Author(s):  
Tamerlan Magkoev
Keyword(s):  
Carbon Monoxide ◽  
Oxide Film ◽  
Co Oxidation ◽  
Electron Tunneling ◽  
High Vacuum ◽  
Oxide System ◽  
Ultra High Vacuum ◽  
Excess Charge ◽  
Alumina Film ◽  
Oxidation Efficiency

Formation of gold nanosized particles supported by aluminum oxide film grown on Mo(110) substrate and oxidation of carbon monoxide molecules on their surface have been in-situ studied in ultra-high vacuum by means of Auger electron spectroscopy (AES), reflection-absorption infrared spectroscopy (RAIRS), low energy electron diffraction (LEED), atomic force microscopy (AFM), temperature-programmed desorption (TPD), and work function measurements. The main focus was to follow how the thickness of the alumina film influences the efficiency of CO oxidation in an attempt to find out evidence of the possible effect of electron tunneling between the metal substrate and the Au particle through the oxide interlayer. Providing the largest degree of surface identity of the studied metal/oxide system at different thicknesses of the alumina film (two, four, six, and eight monolayers), it was found that the CO oxidation efficiency, defined as CO2 to CO TPD peaks intensity ratio, exponentially decays with the oxide film thickness growth. Taking into account the known fact that the CO oxidation efficiency depends on the amount of excess charge acquired by Au particle, the latter suggests that electron tunneling adds efficiency to the oxidation process, although not significantly.

Sign in / Sign up

Export Citation Format

Share Document