skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dehydrogenation of methanol to formaldehyde catalyzed by pristine and defective ceria surfaces

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/C6CP00151C· OSTI ID:1248781
 [1];  [2]
  1. Joint Institute for Computational Sciences, The Univ. of Tennessee, Oak Ridge (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division

We have explored the dehydrogenation of methoxy on pristine and defective (111), (100), and (110) ceria surfaces with density functional methods. Methanol conversion is used as a probe reaction to understand structure sensitivity of the oxide catalysis. Differences in reaction selectivity have been observed experimentally as a function of crystallographically exposed faces and degree of reduction. We find that the barrier for carbon-hydrogen cleavage in methoxy is similar for the pristine and defective (111), (100), and (110) surfaces. However, there are large differences in the stability of the surface intermediates on the different surfaces. The variations in experimentally observed product selectivities are a consequence of the interplay between barrier controlled bond cleavage and desorption processes. Ultimately, subtle differences in activation energies for carbon-hydrogen cleavage on the different crystallographic faces of ceria could not be correlated with structural or electronic descriptors.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
1248781
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Vol. 18, Issue 15; ISSN 1463-9076
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (53)

Variations in Reactivity on Different Crystallographic Orientations of Cerium Oxide journal July 2013
Activity versus Selectivity of the Methanol Oxidation at Ceria Surfaces: A Comparative First-Principles Study journal September 2015
A density functional theory study of formaldehyde adsorption on ceria journal November 2007
Oxygen Vacancy-Assisted Coupling and Enolization of Acetaldehyde on CeO 2 (111) journal October 2012
Surface structure dependence of selective oxidation of ethanol on faceted CeO2 nanocrystals journal October 2013
The Entropies of Adsorbed Molecules journal October 2012
Probing the Surface Sites of CeO 2 Nanocrystals with Well-Defined Surface Planes via Methanol Adsorption and Desorption journal September 2012
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
Many competing ceria (110) oxygen vacancy structures: From small to large supercells journal July 2012
Pathways for Ethanol Dehydrogenation and Dehydration Catalyzed by Ceria (111) and (100) Surfaces journal January 2015
Hybrid density functional theory description of oxygen vacancies in the CeO2 (110) and (100) surfaces journal October 2010
Biodistribution and biopersistence of ceria engineered nanomaterials: size dependence journal April 2013
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
Adsorption and Reaction of C 1 −C 3 Alcohols over CeO X (111) Thin Films journal July 2010
Hydrogen Cycle on CeO 2 (111) Surfaces:  Density Functional Theory Calculations journal October 2007
Adsorption and dissociation of methanol on the fully oxidized and partially reduced (111) cerium oxide surface: Dependence on the configuration of the cerium 4f electrons journal January 2008
A density functional theory study of formaldehyde adsorption and oxidation on CeO2(111) surface journal January 2010
Support Effect in Oxide Catalysis: Methanol Oxidation on Vanadia/Ceria journal October 2014
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Nudged elastic band method for finding minimum energy paths of transitions
  • JÓNsson, Hannes; Mills, Greg; Jacobsen, Karsten W.
  • Proceedings of the International School of Physics, Classical and Quantum Dynamics in Condensed Phase Simulations https://doi.org/10.1142/9789812839664_0016
conference November 2011
The surface chemistry of cerium oxide journal March 2015
CO Adsorption and Oxidation on Ceria Surfaces from DFT+U Calculations journal May 2008
Hydrogen and methoxy coadsorption in the computation of the catalytic conversion of methanol on the ceria (111) surface journal June 2016
Density Functional Theory Study of Methanol Decomposition on the CeO 2 (110) Surface journal February 2008
Unraveling the structure sensitivity in methanol conversion on CeO2: A DFT+U study journal July 2015
Oxygen Defects and Surface Chemistry of Ceria: Quantum Chemical Studies Compared to Experiment journal December 2012
Antioxidant Properties of Cerium Oxide Nanocrystals as a Function of Nanocrystal Diameter and Surface Coating journal October 2013
Controlled synthesis and assembly of ceria-based nanomaterials journal July 2009
Tuning LDA+U for electron localization and structure at oxygen vacancies in ceria journal December 2007
Adsorption and reaction of methanol on thin-film cerium oxide journal April 2006
The electronic structure of oxygen vacancy defects at the low index surfaces of ceria journal December 2005
Structure and reactivity of V 2 O 5 : bulk solid, nanosized clusters, species supported on silica and alumina, cluster cations and anions journal January 2004
Methanol Adsorption on the Clean CeO 2 (111) Surface:  A Density Functional Theory Study journal July 2007
Adsorption and Reaction of Methanol over CeO X (100) Thin Films journal March 2013
Reactions of Methanol with Pristine and Defective Ceria (111) Surfaces: A Comparison of Density Functionals journal October 2014
Development of Low Temperature Three-Way Catalysts for Future Fuel Efficient Vehicles journal January 2015
Isopropanol oxidation by pure metal oxide catalysts: number of active surface sites and turnover frequencies journal November 2002
Projector augmented-wave method journal December 1994
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Ab initiomolecular dynamics for liquid metals journal January 1993
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Generalized Gradient Approximation Made Simple journal October 1996
Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study journal January 1998
First-principles LDA + U and GGA + U study of cerium oxides: Dependence on the effective U parameter journal January 2007
Surface properties of CeO 2 from first principles journal February 2004
Origins and implications of the ordering of oxygen vacancies and localized electrons on partially reduced CeO 2 ( 111 ) journal October 2015
Thermal desorption of gases journal July 1962
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Voltage- and time-dependent valence state transition in cobalt oxide catalysts during the oxygen evolution reaction journal April 2020
Reducing Dzyaloshinskii-Moriya interaction and field-free spin-orbit torque switching in synthetic antiferromagnets journal May 2021
High-resolution X-ray luminescence extension imaging journal February 2021
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020

Cited By (2)


Similar Records

Pathways for Ethanol Dehydrogenation and Dehydration Catalyzed by Ceria (111) and (100) Surfaces
Journal Article · Thu Jan 08 00:00:00 EST 2015 · Journal of Physical Chemistry. C · OSTI ID:1248781

Adsorption and Reaction of Methanol over CeOX(100) Thin Films
Journal Article · Wed Mar 13 00:00:00 EDT 2013 · Langmuir · OSTI ID:1248781

Adsorption and Reaction of Methanol over CeOX(100) Thin Films
Journal Article · Wed Mar 13 00:00:00 EDT 2013 · Langmuir · OSTI ID:1248781