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Issue 22, 2014
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Alkane activation on crystalline metal oxide surfaces

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Abstract

Advances in the fundamental understanding of alkane activation on oxide surfaces are essential for developing new catalysts that efficiently and selectively promote chemical transformations of alkanes. In this tutorial review, we discuss the current understanding of alkane activation on crystalline metal oxide surfaces, and focus mainly on summarizing our findings on alkane adsorption and C–H bond cleavage on the PdO(101) surface as determined from model ultrahigh vacuum experiments and theoretical calculations. These studies show that alkanes form strongly-bound σ-complexes on PdO(101) by datively bonding with coordinatively-unsaturated Pd atoms and that these molecularly adsorbed species serve as precursors for C–H bond activation on the oxide surface. In addition to discussing the binding and properties of alkane σ-complexes on PdO(101), we also summarize recent advances in kinetic models to predict alkane dissociation rates on solid surfaces. Lastly, we highlight computations which predict that the formation and facile C–H bond activation of alkane σ-complexes also occurs on RuO2 and IrO2 surfaces.

Graphical abstract: Alkane activation on crystalline metal oxide surfaces

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Publication details

The article was received on 18 Nov 2013 and first published on 30 Jan 2014


Article type: Tutorial Review
DOI: 10.1039/C3CS60420A
Author version available: Download Author version (PDF)
Citation: Chem. Soc. Rev., 2014,43, 7536-7547
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    Alkane activation on crystalline metal oxide surfaces

    J. F. Weaver, C. Hakanoglu, A. Antony and A. Asthagiri, Chem. Soc. Rev., 2014, 43, 7536
    DOI: 10.1039/C3CS60420A

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