AVS 55th International Symposium & Exhibition
    Surface Science Thursday Sessions
       Session SS-ThP

Paper SS-ThP4
Low Energy Electron Microscopy Study of Adsorbed C on Pt(111)

Thursday, October 23, 2008, 6:00 pm, Room Hall D

Session: Poster Session
Presenter: G.W. Cushing, University of Virginia
Authors: G.W. Cushing, University of Virginia
V. Johánek, University of Virginia
I. Harrison, University of Virginia
Correspondent: Click to Email

Methane reforming rates on supported transition metal nanocatalysts at temperatures near 1000 K are apparently limited, in part, by the build-up and dynamics of adsorbed C.1 We report on the use of a SPECS low energy electron microscope (LEEM) to examine the dynamics and reactivity of adsorbed C on Pt(111) at reforming temperatures. The adsorbed C coverage can be controlled by dosing hydrocarbons and/or oxygen at pressures as high as ~5 x 10-8 Torr whilst imaging with LEEM.

1H. L. Abbott and I. Harrison, "Methane dissociative chemisorption on Ru(0001) and comparison to metal nanocatalysts", J. Catal. 254, 27-38 (2008).