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Title: Simulated Temperature Programmed Desorption of Acetaldehyde on CeO2(111): Evidence for the Role of Oxygen Vacancy and Hydrogen Transfer

Journal Article · · Topics in Catalysis
 [1];  [1]
  1. Louisiana State University, Baton Rouge, LA (United States). Department of Chemical Engineering

The temperature programmed desorption of acetaldehyde adsorbed on partially reduced CeO2(111) has been studied in detail using microkinetic modeling based on self-consistent, periodic density functional theory calculations at the GGA-PW91+U level. Previous experimental studies (Chen et al. J. Phys. Chem. C 115: 3385, 2011; Calaza et al. J. Am. Chem. Soc. 134: 18034, 2012) have shown that, whereas on fully oxidized CeO2(111) acetaldehyde desorbs molecularly with a peak temperature of 210 K, the polymerization and enolization of acetaldehyde dominate the surface reactivity on partially reduced CeO2(111), resulting in acetaldehyde desorption at higher temperatures. Here we propose a comprehensive reaction mechanism that is consistent with the spectroscopic evidence of the identities of the surface intermediates and with the observed desorption activities, including the formation of ethylene and acetylene. Besides acetaldehyde (CH3CHO) and its enolate (CH2CHO), several other C2HxO species are proposed as key intermediates which are not seen spectroscopically, including ethoxy (CH3CH2O), ethyleneoxy (CH2CH2O), and formylmethylene (CHCHO). Our study suggests that oxygen vacancies play the critical role of activating the carbonyl bond and thereby facilitating b C–H bond scissions in acetaldehyde, leading to enolization, intermolecular hydrogen transfer, deoxygenation, and potentially C–C coupling reactions.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
DOE Contract Number:
AC02-05CH11231.
OSTI ID:
1461885
Journal Information:
Topics in Catalysis, Vol. 60, Issue 6-7; ISSN 1022-5528
Publisher:
Springer
Country of Publication:
United States
Language:
English

References (60)

Catalytic Conversion of Biomass to Monofunctional Hydrocarbons and Targeted Liquid-Fuel Classes journal October 2008
Thermal desorption of gases journal July 1962
Role of CeO2 in Ni/CeO2–Al2O3 catalysts for carbon dioxide reforming of methane journal December 1998
Catalytic purification of waste gases containing VOC mixtures with Ce/Zr solid solutions journal June 2006
Variations in Reactivity on Different Crystallographic Orientations of Cerium Oxide journal July 2013
Reactivity of Hydroxyls and Water on a CeO 2 (111) Thin Film Surface: The Role of Oxygen Vacancy journal March 2013
Structure sensitivity of the methanation reaction: H2-induced CO dissociation on nickel surfaces journal April 2008
Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties journal January 1998
Role of oxygen vacancies in the surface evolution of H at CeO 2 (111): a charge modification effect journal January 2015
Van der Waals density functionals applied to solids journal May 2011
Activity of CeOx and TiOx Nanoparticles Grown on Au(111) in the Water-Gas Shift Reaction journal December 2007
Synthesis of Transportation Fuels from Biomass: Chemistry, Catalysts, and Engineering journal September 2006
Effects of hydrogen and water on the activity and selectivity of acetic acid hydrogenation on ruthenium journal January 2014
Molecular-Level Understanding of CeO 2 as a Catalyst for Partial Alkyne Hydrogenation journal January 2014
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Calibration of the DFT/GGA+U Method for Determination of Reduction Energies for Transition and Rare Earth Metal Oxides of Ti, V, Mo, and Ce journal June 2011
Integration of C–C coupling reactions of biomass-derived oxygenates to fuel-grade compounds journal February 2010
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
Use of CeO2-based oxides in the three-way catalysis journal April 1999
Oxygen Vacancy-Assisted Coupling and Enolization of Acetaldehyde on CeO 2 (111) journal October 2012
Reactivity and reaction intermediates for acetic acid adsorbed on CeO2(1 1 1) journal September 2015
Rationalization of the Hubbard U parameter in CeO x from first principles: Unveiling the role of local structure in screening journal February 2014
Adsorption and Reaction of Acetaldehyde on Shape-Controlled CeO 2 Nanocrystals: Elucidation of Structure–Function Relationships journal June 2014
Hydrogen activation, diffusion, and clustering on CeO 2 (111): A DFT+ U study journal July 2014
DFT-driven multi-site microkinetic modeling of ethanol conversion to ethylene and diethyl ether on γ-Al2O3(1 1 1) journal March 2015
A dimer method for finding saddle points on high dimensional potential surfaces using only first derivatives journal October 1999
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
Polymerization and decarbonylation reactions of aldehydes on the Pd(111) surface journal March 1989
Periodic Density Functional Theory Study of VO n Species Supported on the CeO 2 (111) Surface journal March 2011
Pathways for Ethanol Dehydrogenation and Dehydration Catalyzed by Ceria (111) and (100) Surfaces journal January 2015
Improved initial guess for minimum energy path calculations journal June 2014
Heterogeneous Catalytic Transfer Hydrogenation as an Effective Pathway in Biomass Upgrading journal January 2016
Catalytic conversion of biomass to biofuels journal January 2010
Reactions of Acetaldehyde on CeO2 and CeO2-Supported Catalysts journal September 1995
Adsorption and surface reactions of acetaldehyde on TiO2, CeO2 and Al2O3 journal June 2005
Renewable Hydrogen from Ethanol by Autothermal Reforming journal February 2004
Efficient methods for finding transition states in chemical reactions: Comparison of improved dimer method and partitioned rational function optimization method journal December 2005
Adsorption and Reaction of C 1 −C 3 Alcohols over CeO X (111) Thin Films journal July 2010
Oxygen Vacancies versus Fluorine at CeO 2 ( 111 ) : A Case of Mistaken Identity? journal April 2014
What Should We Demand from the Catalysts Responsible for Upgrading Biomass Pyrolysis Oil? journal August 2011
Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review journal May 2006
Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2 journal July 2014
Reactions of Carboxylic Acids on Oxides journal June 1997
Special points for Brillouin-zone integrations journal June 1976
Adsorption and Reaction of Acetaldehyde over CeO X (111) Thin Films journal February 2011
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
VESTA : a three-dimensional visualization system for electronic and structural analysis journal May 2008
Homolytic Products from Heterolytic Paths in H 2 Dissociation on Metal Oxides: The Example of CeO 2 journal May 2014
Oxygen Defects and Surface Chemistry of Ceria: Quantum Chemical Studies Compared to Experiment journal December 2012
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation journal September 1992
Comment on “Taming multiple valency with density functionals: A case study of defective ceria” journal December 2005
Electron Localization Determines Defect Formation on Ceria Substrates journal July 2005
Promotional effect of rare earths and transition metals in the combustion of diesel soot over CeO2 and CeO2–ZrO2 journal April 2006
Growth and Characterization of Rh and Pd Nanoparticles on Oxidized and Reduced CeO x (111) Thin Films by Scanning Tunneling Microscopy journal May 2008
Adsorbate-substrate and adsorbate-adsorbate interactions of Na and K adlayers on Al(111) journal December 1992
Interaction of Hydrogen with Cerium Oxide Surfaces:  a Quantum Mechanical Computational Study journal October 2006
Ketonization of Carboxylic Acids: Mechanisms, Catalysts, and Implications for Biomass Conversion journal October 2013
Electronic and Atomistic Structures of Clean and Reduced Ceria Surfaces journal December 2005
Temperature evolution of structure and bonding of formic acid and formate on fully oxidized and highly reduced CeO2(111) journal January 2009

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