10.1021/nl1022018.s003
Zhihai Cheng
Zhihai
Cheng
Miaomiao Luo
Miaomiao
Luo
Jonathan Wyrick
Jonathan
Wyrick
Dezheng Sun
Dezheng
Sun
Daeho Kim
Daeho
Kim
Yeming Zhu
Yeming
Zhu
Wenhao Lu
Wenhao
Lu
Kwangmoo Kim
Kwangmoo
Kim
T. L. Einstein
T. L.
Einstein
Ludwig Bartels
Ludwig
Bartels
Power of Confinement: Adsorbate Dynamics on Nanometer-Scale Exposed Facets
American Chemical Society
2010
adsorption sites
pore
dislocation lines
terrace
adsorbate population
adsorbate diffusivity
Confinement
Adsorbate Dynamics
CO adsorbates
reactive adsorption configurations
copper surface
uniform films
confinement CO molecules
scanning tunneling microscopy
contrast
2010-09-08 00:00:00
Dataset
https://acs.figshare.com/articles/dataset/Power_of_Confinement_Adsorbate_Dynamics_on_Nanometer_Scale_Exposed_Facets/2733655
The diffusion and arrangements of CO adsorbates within nanometer-scale pores on a copper surface are investigated by low-temperature scanning tunneling microscopy. In contrast to extended terraces, confinement stabilizes dislocation lines that expose more than one-fourth of the adsorbate population to potentially more reactive adsorption configurations. Confinement allows correlation between adsorbate diffusivity and the number of adsorbates in the pore. A marked increase is found that coincides with the absence of dense films on the exposed facets. In combination, we find that in confinement CO molecules are much more likely to be at adsorption sites that allow lateral access, in contrast to the dense and uniform films on extended terraces.