Trends in the dissociative oxygen adsorption energy and oxygen vacancy formation energy on cubic LaBO3 and SrBO3 perovskite (001) surfaces (where B = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) and their dependence on strain, d-band filling, and oxidation state were examined using density functional theory in the generalized gradient approximation. The effects of strain were found to be small compared to the effects of d-band filling and oxidations state. Electronic structure descriptors such as the d-band center of the B-atom were identified for trends in the dissociative oxygen adsorption energy and for the oxygen vacancy formation energy. A chemical correlation between these two reaction energies was also identified showing the trends in these reaction energies are not independent of each other.
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28 August 2012
Research Article|
August 24 2012
Effects of strain, d-band filling, and oxidation state on the surface electronic structure and reactivity of 3d perovskite surfaces Available to Purchase
Sneha A. Akhade;
Sneha A. Akhade
Department of Chemical Engineering,
Carnegie Mellon University
, Pittsburgh, Pennsylvania 15213, USA
Search for other works by this author on:
John R. Kitchin
John R. Kitchin
a)
Department of Chemical Engineering,
Carnegie Mellon University
, Pittsburgh, Pennsylvania 15213, USA
Search for other works by this author on:
Sneha A. Akhade
Department of Chemical Engineering,
Carnegie Mellon University
, Pittsburgh, Pennsylvania 15213, USA
John R. Kitchin
a)
Department of Chemical Engineering,
Carnegie Mellon University
, Pittsburgh, Pennsylvania 15213, USA
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected].
J. Chem. Phys. 137, 084703 (2012)
Article history
Received:
May 22 2012
Accepted:
July 23 2012
Citation
Sneha A. Akhade, John R. Kitchin; Effects of strain, d-band filling, and oxidation state on the surface electronic structure and reactivity of 3d perovskite surfaces. J. Chem. Phys. 28 August 2012; 137 (8): 084703. https://doi.org/10.1063/1.4746117
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