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Hydrogen adsorption on gallium nanoclusters
Journal article   Peer reviewed

Hydrogen adsorption on gallium nanoclusters

D.J. Henry
The Journal of Physical Chemistry C, Vol.117(49), pp.26269-26279
2013
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Abstract

The reactivity of metal nanoclusters can vary significantly as a function of the valence electronic configuration of the cluster. Hydrogen adsorption provides a simple probe to investigate variations in reactivity of nanoclusters and identify factors that contribute to regioselectivity of interactions. In this study density functional theory is used to investigate the structures, stabilities, and electronic properties of doped gallium nanocluster hydrides, Ga12XH (X = B, C, Al, Si, P, Ga, Ge, and As). Hydrogen adsorption is found to be energetically favorable, but there is significant isomerization with respect to adsorption site. Consequently, adsorption energies vary not only with valence electronic configuration, but also with adsorption site. This regioselectivity of hydrogen adsorption is analyzed in terms of cluster bonding and frontier orbital interactions.

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Citation topics
2 Chemistry
2.15 Physical Chemistry
2.15.647 Metal Clusters
Web Of Science research areas
Chemistry, Physical
Materials Science, Multidisciplinary
Nanoscience & Nanotechnology
ESI research areas
Chemistry
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