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New Bonding Model of Radical Adsorbate on Lattice Oxygen of Perovskites

Journal Article · · Journal of Physical Chemistry Letters

In this paper, a new model of bonding between radical adsorbates and lattice oxygens is proposed that considers both the adsorbate–oxygen bonding and the weakening of the metal–oxygen bonds. Density functional calculations of SrMO3 perovskites for M being 3d, 4d, and 5d transition metals are used to correlate the bulk electronic structure with the surface-oxygen reactivity. Occupation of the metal–oxygen antibonding states, examined via the crystal orbital Hamilton population (COHP), is found to be a useful bulk descriptor that correlates with the vacancy formation energy of the lattice oxygen and its hydrogen adsorption energy. Analysis of density-of-states and COHP indicates that H adsorption energy is a combined result of formation of the O–H bond and the weakening of the surface metal–oxygen bond due to occupation of the metal–oxygen antibonding states by the electron from H. Lastly, this insight will be useful in understanding the trends in surface reactivity of perovskites and transition-metal oxides in general.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
1502543
Journal Information:
Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Journal Issue: 21 Vol. 9; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (34)

Trends in Stability of Perovskite Oxides journal September 2010
Fast Prediction of Adsorption Properties for Platinum Nanocatalysts with Generalized Coordination Numbers journal June 2014
Trends of Alkane Activation on Doped Cobalt (II, III) Oxide from First Principles journal November 2017
On Shustorovich's Bond-Order conservation method as applied to chemisorption journal January 1990
Methane Oxidation by Lanthanum Oxide Doped with Cu, Zn, Mg, Fe, Nb, Ti, Zr, or Ta: The Connection Between the Activation Energy and the Energy of Oxygen-Vacancy Formation journal March 2013
Chemisorption phenomena: Analytic modeling based on perturbation theory and bond-order conservation journal July 1986
Theory of surface chemistry and reactivity of reducible oxides journal April 2015
Periodic trends of oxygen vacancy formation and C–H bond activation over transition metal-doped CeO2 (111) surfaces journal September 2012
Electrolysis of water on oxide surfaces journal September 2007
Oxygen vacancies in transition metal and rare earth oxides: Current state of understanding and remaining challenges journal June 2007
Reactivity and Selectivity Descriptors for the Activation of C–H Bonds in Hydrocarbons and Oxygenates on Metal Oxides journal July 2016
General Structure–Reactivity Relationship for Oxygen on Transition-Metal Oxides journal May 2017
Electronic Origin and Kinetic Feasibility of the Lattice Oxygen Participation During the Oxygen Evolution Reaction on Perovskites journal March 2018
Activation of Surface Oxygen Sites in a Cobalt-Based Perovskite Model Catalyst for CO Oxidation journal July 2018
Correlation of Methane Activation and Oxide Catalyst Reducibility and Its Implications for Oxidative Coupling journal February 2016
Why Is Bulk Thermochemistry a Good Descriptor for the Electrocatalytic Activity of Transition Metal Oxides? journal January 2015
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations journal August 1993
Super-Reduced Polyoxometalates: Excellent Molecular Cluster Battery Components and Semipermeable Molecular Capacitors journal June 2014
Trends in Metal Oxide Stability for Nanorods, Nanotubes, and Surfaces journal December 2010
Why gold is the noblest of all the metals journal July 1995
Design principles for oxygen-reduction activity on perovskite oxide catalysts for fuel cells and metal–air batteries journal June 2011
Towards the computational design of solid catalysts journal April 2009
Introducing structural sensitivity into adsorption–energy scaling relations by means of coordination numbers journal April 2015
Understanding trends in C–H bond activation in heterogeneous catalysis journal October 2016
Exploring perovskites for methane activation from first principles journal January 2018
Prediction of solid oxide fuel cell cathode activity with first-principles descriptors journal January 2011
Generalized trends in the formation energies of perovskite oxides journal January 2013
Influence of the exchange screening parameter on the performance of screened hybrid functionals journal December 2006
A comparative study of Hamilton and overlap population methods for the analysis of chemical bonding journal August 2000
Density functional theory in surface chemistry and catalysis journal January 2011
Formation energies of rutile metal dioxides using density functional theory journal January 2009
Generalized Gradient Approximation Made Simple journal October 1996
A chemical and theoretical way to look at bonding on surfaces journal July 1988
Solids and Surfaces: A Chemist's View of Bonding in Extended Structures report July 1988

Cited By (5)

Asymmetric Oxygen Vacancies: the Intrinsic Redox Active Sites in Metal Oxide Catalysts journal November 2019
Facile CO Oxidation on Oxygen‐functionalized MXenes via the Mars‐van Krevelen Mechanism journal December 2019
Screening highly active perovskites for hydrogen-evolving reaction via unifying ionic electronegativity descriptor journal August 2019
Effect of the oxygen coordination environment of Ca–Mn oxides on the catalytic performance of Pd supported catalysts for aerobic oxidation of 5-hydroxymethyl-2-furfural journal January 2019
Key role of antibonding electron transfer in bonding on solid surfaces journal September 2019

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