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Theoretical proposal: a tunable heterogeneous catalyst
Journal article   Peer reviewed

Theoretical proposal: a tunable heterogeneous catalyst

Karl Sohlberg, Sokrates T. Pantelides and Stephen J. Pennycook
Surface science, v 470(1), pp L88-L92
2000

Abstract

Aluminum oxide Catalysis Density functional calculations Surface relaxation and reconstruction
First principle calculations predict that the massive surface reconstruction of cubic alumina can be switched on or off by controlling the bulk H content and temperature. In one state the surface contains highly valence unsaturated Al atoms, the source of surface acidity central to catalysis. In the other state, these Al atoms bury themselves below the surface, giving a weaker surface acidity and a softer catalyst. These results evince a surface catalytic activity of alumina that can be tuned by switching between these two modes, opening the way for tunable heterogeneous catalysis.

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Collaboration types
Domestic collaboration
Web of Science research areas
Chemistry, Physical
Physics, Condensed Matter
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