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

Title: Carbon Monoxide Poisoning Resistance and Structural Stability of Single Atom Alloys

Journal Article · · Topics in Catalysis

Platinum group metals (PGMs) serve as highly active catalysts in a variety of heterogeneous chemical processes. Unfortunately, their high activity is accompanied by a high affinity for CO and thus, PGMs are susceptible to poisoning. Alloying PGMs with metals exhibiting lower affinity to CO could be an effective strategy toward preventing such poisoning. In this work, we use density functional theory to demonstrate this strategy, focusing on highly dilute alloys of PGMs (Pd, Pt, Rh, Ir and Ni) with poison resistant coinage metal hosts (Cu, Ag, Au), such that individual PGM atoms are dispersed at the atomic limit forming single atom alloys (SAAs). We show that compared to the pure metals, CO exhibits lower binding strength on the majority of SAAs studied, and we use kinetic Monte Carlo simulation to obtain relevant temperature programed desorption spectra, which are found to be in good agreement with experiments. Additionally, we consider the effects of CO adsorption on the structure of SAAs. We calculate segregation energies which are indicative of the stability of dopant atoms in the bulk compared to the surface layer, as well as aggregation energies to determine the stability of isolated surface dopant atoms compared to dimer and trimer configurations. Our calculations reveal that CO adsorption induces dopant atom segregation into the surface layer for all SAAs considered here, whereas aggregation and island formation may be promoted or inhibited depending on alloy constitution and CO coverage. Furthermore, this observation suggests the possibility of controlling ensemble effects in novel catalyst architectures through CO-induced aggregation and kinetic trapping.

Research Organization:
Tufts Univ., Medford, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0004738
OSTI ID:
1502103
Journal Information:
Topics in Catalysis, Vol. 61, Issue 5-6; ISSN 1022-5528
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 83 works
Citation information provided by
Web of Science

References (68)

Resistance to sulfur poisoning of Ni-based alloy with coinage (IB) metals journal December 2015
Generalized Gradient Approximation Made Simple journal October 1996
Thermal desorption of gases journal July 1962
CO induced surface segregation as a means of improving surface composition and enhancing performance of CuPd bimetallic catalysts journal September 2015
Projector augmented-wave method journal December 1994
Tackling CO Poisoning with Single-Atom Alloy Catalysts journal May 2016
A graph-theoretical kinetic Monte Carlo framework for on-lattice chemical kinetics journal June 2011
Extraction of kinetic parameters in temperature programmed desorption: A comparison of methods journal December 1987
Preparation, Structure, and Surface Chemistry of Ni–Au Single Atom Alloys journal June 2016
The carbon-tolerance mechanism of Ni-based alloy with coinage metals journal November 2013
Reaction pathways and poisons—II journal January 1975
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Selective hydrogenation of 1,3-butadiene on platinum–copper alloys at the single-atom limit journal October 2015
DFT study of the M segregation on MAu alloys (M=Ni, Pd, Pt) in presence of adsorbed oxygen O and O2 journal January 2012
Parallel kinetic Monte Carlo simulation framework incorporating accurate models of adsorbate lateral interactions journal December 2013
Ag Alloyed Pd Single-Atom Catalysts for Efficient Selective Hydrogenation of Acetylene to Ethylene in Excess Ethylene journal May 2015
Ab initiomolecular dynamics for liquid metals journal January 1993
Water co-catalyzed selective dehydrogenation of methanol to formaldehyde and hydrogen journal August 2016
Molecular-Scale Perspective of Water-Catalyzed Methanol Dehydrogenation to Formaldehyde journal June 2013
Reactivity of Bimetallic Systems Studied from First Principles journal March 2006
The adsorption of Xe and CO on Ag(111) journal March 1976
Equilibrium Constants and Rate Constants for Adsorbates: Two-Dimensional (2D) Ideal Gas, 2D Ideal Lattice Gas, and Ideal Hindered Translator Models journal May 2016
STM studies of ordered ( 31 × 31 ) R 9 ° CO islands on Ag(111) journal April 2005
Surface segregation and ordering of alloy surfaces in the presence of adsorbates journal November 2005
Chemisorbed atomic oxygen inducing Pd segregation in PdAu(111) alloy: Energetic and electronic DFT analysis journal February 2011
The adsorption of CO, O2, and H2 on Pt journal December 1977
Unraveling the Complexity of Catalytic Reactions via Kinetic Monte Carlo Simulation: Current Status and Frontiers journal November 2012
On the CO tolerance of novel colloidal PdAu/carbon electrocatalysts journal March 2001
Density functional theory study of CO-induced segregation in gold-based alloys journal August 2014
Adsorption of CO on Surfaces of 4d and 5d Elements in Group VIII journal January 2007
Isolated Metal Atom Geometries as a Strategy for Selective Heterogeneous Hydrogenations journal March 2012
Pd on carbon nanotubes-supported Ag for formate oxidation: The effect of Ag on anti-poisoning performance journal August 2016
The oxidation of carbon monoxide on the Au(110) surface journal January 1987
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Supported Palladium–Gold Alloy Catalysts for Efficient and Selective Hydrosilylation under Mild Conditions with Isolated Single Palladium Atoms in Alloy Nanoparticles as the Main Active Site journal January 2017
CO adsorption studies on pure and Ni-covered Cu(111) surfaces journal November 1986
First-principles study of Au–Cu alloy surface changes induced by gas adsorption of CO, NO, or O 2 journal July 2016
Chemisorption of H on Pd(111): An ab initio approach with ultrasoft pseudopotentials journal July 1996
First-Principles-Based Kinetic Monte Carlo Simulation of the Structure Sensitivity of the Water–Gas Shift Reaction on Platinum Surfaces journal November 2011
Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals journal March 1999
Evidence of Pd segregation and stabilization at edges of AuPd nano-clusters in the presence of CO: A combined DFT and DRIFTS study journal December 2013
Atomic-Scale Imaging and Electronic Structure Determination of Catalytic Sites on Pd/Cu Near Surface Alloys journal March 2009
Atomic Scale Surface Structure of Pt/Cu(111) Surface Alloys journal January 2014
Surface segregation energies in transition-metal alloys journal June 1999
Controlling a spillover pathway with the molecular cork effect journal April 2013
Single atom alloy surface analogs in Pd0.18Cu15 nanoparticles for selective hydrogenation reactions journal January 2013
Carbon monoxide poisoning of proton exchange membrane fuel cells journal January 2001
Surface segregation in bimetallic Pt3M (M=Fe, Co, Ni) alloys with adsorbed oxygen journal January 2009
Surface energies of elemental crystals journal September 2016
Dual role of CO in the stability of subnano Pt clusters at the Fe 3 O 4 (001) surface journal July 2016
Poisoning of Pt/C catalysts by CO and its consequences over the kinetics of hydrogen chemisorption journal November 2009
A review of PEM hydrogen fuel cell contamination: Impacts, mechanisms, and mitigation journal March 2007
Significance of single-electron energies for the description of CO on Pt(111) journal August 2003
The CO/Pt(111) Puzzle journal May 2001
Controlling Hydrogen Activation, Spillover, and Desorption with Pd–Au Single-Atom Alloys journal January 2016
An Atomic-Scale View of Palladium Alloys and their Ability to Dissociate Molecular Hydrogen journal October 2010
Dependence of effective desorption kinetic parameters on surface coverage and adsorption temperature: CO on Pd(111) journal June 1989
CO adsorption studies on pure and Ni-covered Cu(111) surfaces journal November 1986
Carbon monoxide poisoning of proton exchange membrane fuel cells journal July 2002
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
The oxidation of carbon monoxide on the Au(110) surface journal January 1987
Reactivity of Bimetallic Systems Studied from First Principles journal August 2006
A facile route to monodisperse MPd (M = Co or Cu) alloy nanoparticles and their catalysis for electrooxidation of formic acid journal January 2014
Surface restructuring of Cu-based single-atom alloy catalysts under reaction conditions: the essential role of adsorbates journal January 2017
Hydrogen Dissociation and Spillover on Individual Isolated Palladium Atoms journal December 2009
Theoretical analysis of doped graphene as cathode catalyst in Li-O2 and Na-O2 batteries -- the impact of the computational scheme preprint January 2020

Cited By (5)

Intermetallic Compounds as an Alternative to Single‐atom Alloy Catalysts: Geometric and Electronic Structures from Advanced X‐ray Spectroscopies and Computational Studies journal January 2020
The Synergy of Dilute Pd and Surface Oxygen Species for Methane Upgrading on Au 3 Pd(111) journal September 2019
Single atom alloy catalyst for SO 3 decomposition: enhancement of platinum catalyst's performance by Ag atom embedding journal January 2018
Predicting aggregation energy for single atom bimetallic catalysts on clean and O* adsorbed surfaces through machine learning models journal January 2020
Elucidating the composition of PtAg surface alloys with atomic-scale imaging and spectroscopy journal October 2019

Figures / Tables (9)


Similar Records

Carbon Monoxide Mediated Hydrogen Release from PtCu Single-Atom Alloys: The Punctured Molecular Cork Effect
Journal Article · Wed Mar 27 00:00:00 EDT 2019 · Journal of Physical Chemistry. C · OSTI ID:1502103

Periodic Trends in Adsorption Energies around Single-Atom Alloy Active Sites
Journal Article · Mon Oct 11 00:00:00 EDT 2021 · Journal of Physical Chemistry Letters · OSTI ID:1502103

Tackling CO Poisoning with Single Atom Alloy Catalysts
Journal Article · Sun May 01 00:00:00 EDT 2016 · Journal of the American Chemical Society · OSTI ID:1502103