Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

doi:10.1038/S41467-019-09308-5

Title: Tuning Pt-CeO₂ interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Abstract

In this work, we compare the CO oxidation performance of Pt single atom catalysts (SACs) prepared via two methods: (1) conventional wet chemical synthesis (strong electrostatic adsorption–SEA) with calcination at 350 °C in air; and (2) high temperature vapor phase synthesis (atom trapping–AT) with calcination in air at 800 °C leading to ionic Pt being trapped on the CeO₂ in a thermally stable form. As-synthesized, both SACs are inactive for low temperature (<150 °C) CO oxidation. After treatment in CO at 275 °C, both catalysts show enhanced reactivity. Despite similar Pt metal particle size, the AT catalyst is significantly more active, with onset of CO oxidation near room temperature. A combination of near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) and CO temperature-programmed reduction (CO-TPR) shows that the high reactivity at low temperatures can be related to the improved reducibility of lattice oxygen on the CeO₂ support.

Authors:

^[1]; DeLaRiva, Andrew ^[2]; Muravev, Valery ^[3]; Kunwar, Deepak ^[2];

^[2]; Sudduth, Berlin ^[1];

^[4]; Kovarik, Libor ^[4];

^[3]; Wang, Yong ^[5];

^[2]

Washington State Univ., Pullman, WA (United States)
Univ. of New Mexico, Albuquerque, NM (United States)
Eindhoven Univ. of Technology, Eindhoven (The Netherlands)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Washington State Univ., Pullman, WA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Publication Date:: 2019-03-25

Research Org.:: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1507543

Report Number(s):: PNNL-SA-132985
Journal ID: ISSN 2041-1723

Grant/Contract Number:: AC05-76RL01830

Resource Type:: Accepted Manuscript

Journal Name:: Nature Communications

Additional Journal Information:: Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Pereira-Hernández, Xavier Isidro, DeLaRiva, Andrew, Muravev, Valery, Kunwar, Deepak, Xiong, Haifeng, Sudduth, Berlin, Engelhard, Mark, Kovarik, Libor, Hensen, Emiel J. M., Wang, Yong, and Datye, Abhaya K. Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen.  United States: N. p., 2019. 
        Web.  doi:10.1038/S41467-019-09308-5.

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                    Pereira-Hernández, Xavier Isidro, DeLaRiva, Andrew, Muravev, Valery, Kunwar, Deepak, Xiong, Haifeng, Sudduth, Berlin, Engelhard, Mark, Kovarik, Libor, Hensen, Emiel J. M., Wang, Yong, & Datye, Abhaya K. Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen.  United States.  doi:10.1038/S41467-019-09308-5.

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                    Pereira-Hernández, Xavier Isidro, DeLaRiva, Andrew, Muravev, Valery, Kunwar, Deepak, Xiong, Haifeng, Sudduth, Berlin, Engelhard, Mark, Kovarik, Libor, Hensen, Emiel J. M., Wang, Yong, and Datye, Abhaya K. Mon .  
        "Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen".  United States.  doi:10.1038/S41467-019-09308-5.  https://www.osti.gov/servlets/purl/1507543.

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@article{osti_1507543,

  title        = {Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen},

  author       = {Pereira-Hernández, Xavier Isidro and DeLaRiva, Andrew and Muravev, Valery and Kunwar, Deepak and Xiong, Haifeng and Sudduth, Berlin and Engelhard, Mark and Kovarik, Libor and Hensen, Emiel J. M. and Wang, Yong and Datye, Abhaya K.},

  abstractNote = {In this work, we compare the CO oxidation performance of Pt single atom catalysts (SACs) prepared via two methods: (1) conventional wet chemical synthesis (strong electrostatic adsorption–SEA) with calcination at 350 °C in air; and (2) high temperature vapor phase synthesis (atom trapping–AT) with calcination in air at 800 °C leading to ionic Pt being trapped on the CeO2 in a thermally stable form. As-synthesized, both SACs are inactive for low temperature (<150 °C) CO oxidation. After treatment in CO at 275 °C, both catalysts show enhanced reactivity. Despite similar Pt metal particle size, the AT catalyst is significantly more active, with onset of CO oxidation near room temperature. A combination of near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) and CO temperature-programmed reduction (CO-TPR) shows that the high reactivity at low temperatures can be related to the improved reducibility of lattice oxygen on the CeO2 support.},

  doi          = {10.1038/S41467-019-09308-5},

  journal      = {Nature Communications},

  number       = 1,

  volume       = 10,

  place        = {United States},

  year         = {2019},

  month        = {3}

}

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Works referenced in this record:

Adsorption sites, metal-support interactions, and oxygen spillover identified by vibrational spectroscopy of adsorbed CO: A model study on Pt/ceria catalysts
journal, May 2012

Happel, M.; Mysliveček, J.; Johánek, V.
Journal of Catalysis, Vol. 289
DOI: 10.1016/j.jcat.2012.01.022

Counting electrons on supported nanoparticles
journal, December 2015

Lykhach, Yaroslava; Kozlov, Sergey M.; Skála, Tomáš
Nature Materials, Vol. 15, Issue 3
DOI: 10.1038/nmat4500

Introducing Time Resolution to Detect Ce ³⁺ Catalytically Active Sites at the Pt/CeO ₂ Interface through Ambient Pressure X-ray Photoelectron Spectroscopy
journal, December 2016

Artiglia, Luca; Orlando, Fabrizio; Roy, Kanak
The Journal of Physical Chemistry Letters, Vol. 8, Issue 1
DOI: 10.1021/acs.jpclett.6b02314

Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties
journal, January 1998

Bunluesin, T.; Gorte, R. J.; Graham, G. W.
Applied Catalysis B: Environmental, Vol. 15, Issue 1-2
DOI: 10.1016/S0926-3373(97)00040-4

Catalysis by Supported Single Metal Atoms
journal, November 2016

Liu, Jingyue
ACS Catalysis, Vol. 7, Issue 1
DOI: 10.1021/acscatal.6b01534

Catalytically active Au-O(OH) _x - species stabilized by alkali ions on zeolites and mesoporous oxides
journal, November 2014

Yang, Ming; Li, Sha; Wang, Yuan
Science, Vol. 346, Issue 6216
DOI: 10.1126/science.1260526

Synthesis of very highly dispersed platinum catalysts supported on carbon xerogels by the strong electrostatic adsorption method
journal, January 2009

Lambert, S.; Job, N.; Dsouza, L.
Journal of Catalysis, Vol. 261, Issue 1
DOI: 10.1016/j.jcat.2008.10.014

Catalytically Active and Spectator Ce ³⁺ in Ceria-Supported Metal Catalysts
journal, June 2015

Kopelent, René; van Bokhoven, Jeroen A.; Szlachetko, Jakub
Angewandte Chemie, Vol. 127, Issue 30
DOI: 10.1002/ange.201503022

Atom trapping: a novel approach to generate thermally stable and regenerable single-atom catalysts
journal, September 2018

Datye, Abhaya; Wang, Yong
National Science Review, Vol. 5, Issue 5
DOI: 10.1093/nsr/nwy093

CO oxidation for the characterization of reducibility in oxygen storage components of three-way automotive catalysts
journal, December 1997

Bunluesin, T.; Gorte, R. J.; Graham, G. W.
Applied Catalysis B: Environmental, Vol. 14, Issue 1-2
DOI: 10.1016/S0926-3373(97)00016-7

Infrared Emission and Theoretical Study of Carbon Monoxide Adsorbed on Alumina-Supported Rh, Ir, and Pt Catalysts
journal, February 2006

Korányi, Tamás I.; Mihály, Judith; Pfeifer, Éva
The Journal of Physical Chemistry A, Vol. 110, Issue 5
DOI: 10.1021/jp055745b

Nature of stable single atom Pt catalysts dispersed on anatase TiO2
journal, November 2018

Thang, Ho Viet; Pacchioni, Gianfranco; DeRita, Leo
Journal of Catalysis, Vol. 367
DOI: 10.1016/j.jcat.2018.08.025

Single-atom catalysis of CO oxidation using Pt1/FeOx
journal, July 2011

Qiao, Botao; Wang, Aiqin; Yang, Xiaofeng
Nature Chemistry, Vol. 3, Issue 8
DOI: 10.1038/nchem.1095

Sensitivity of CO oxidation toward metal oxidation state in ceria-supported catalysts: an operando DRIFTS-MS study
journal, January 2016

Kaftan, Andre; Kollhoff, Fabian; Nguyen, Thanh-Son
Catalysis Science & Technology, Vol. 6, Issue 3
DOI: 10.1039/C5CY00827A

Synergy between hydrogen and ceria in Pt-catalyzed CO oxidation: An investigation on Pt–CeO2 catalysts synthesized by solution combustion
journal, November 2016

Morfin, Franck; Nguyen, Thanh-Son; Rousset, Jean-Luc
Applied Catalysis B: Environmental, Vol. 197
DOI: 10.1016/j.apcatb.2016.01.056

Probing Metal−Support Interactions under Oxidizing and Reducing Conditions: In Situ Raman and Infrared Spectroscopic and Scanning Transmission Electron Microscopic−X-ray Energy-Dispersive Spectroscopic Investigation of Supported Platinum Catalysts
journal, April 2008

Lin, Wenyong; Herzing, A. A.; Kiely, C. J.
The Journal of Physical Chemistry C, Vol. 112, Issue 15
DOI: 10.1021/jp710591m

Selective CO oxidation on Cu promoted Pt/Al2O3 and Pt/Nb2O5 catalysts
journal, October 2011

Mozer, Thiago S.; Passos, Fabio B.
International Journal of Hydrogen Energy, Vol. 36, Issue 21
DOI: 10.1016/j.ijhydene.2011.08.011

Water-Mediated Mars–Van Krevelen Mechanism for CO Oxidation on Ceria-Supported Single-Atom Pt ₁ Catalyst
journal, December 2016

Wang, Chunlei; Gu, Xiang-Kui; Yan, Huan
ACS Catalysis, Vol. 7, Issue 1
DOI: 10.1021/acscatal.6b02685

Thermally stable single-atom platinum-on-ceria catalysts via atom trapping
journal, July 2016

Jones, J.; Xiong, H.; DeLaRiva, A. T.
Science, Vol. 353, Issue 6295
DOI: 10.1126/science.aaf8800

CO Oxidation on Supported Single Pt Atoms: Experimental and ab Initio Density Functional Studies of CO Interaction with Pt Atom on θ-Al ₂ O ₃ (010) Surface
journal, August 2013

Moses-DeBusk, Melanie; Yoon, Mina; Allard, Lawrence F.
Journal of the American Chemical Society, Vol. 135, Issue 34
DOI: 10.1021/ja401847c

Mechanisms of CO oxidation reaction and effect of chlorine ions on the CO oxidation reaction over Pt/CeO2 and Pt/CeO2/γ-Al2O3 catalysts
journal, December 2004

Oran, U.; Uner, D.
Applied Catalysis B: Environmental, Vol. 54, Issue 3
DOI: 10.1016/j.apcatb.2004.06.011

Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts
journal, September 2015

Ding, K.; Gulec, A.; Johnson, A. M.
Science, Vol. 350, Issue 6257
DOI: 10.1126/science.aac6368

Activation of surface lattice oxygen in single-atom Pt/CeO ₂ for low-temperature CO oxidation
journal, December 2017

Nie, Lei; Mei, Donghai; Xiong, Haifeng
Science, Vol. 358, Issue 6369
DOI: 10.1126/science.aao2109

A comparison of CO oxidation on ceria-supported Pt, Pd, and Rh
journal, January 1996

Bunluesin, T.; Putna, E. S.; Gorte, R. J.
Catalysis Letters, Vol. 41, Issue 1-2
DOI: 10.1007/BF00811703

Control of Metal Nanocrystal Size Reveals Metal-Support Interface Role for Ceria Catalysts
journal, July 2013

Cargnello, M.; Doan-Nguyen, V. V. T.; Gordon, T. R.
Science, Vol. 341, Issue 6147
DOI: 10.1126/science.1240148

Study of CO Oxidation Kinetics on Rh/Ceria
journal, November 1995

Bunluesin, T.; Cordatos, H.; Gorte, R. J.
Journal of Catalysis, Vol. 157, Issue 1
DOI: 10.1006/jcat.1995.1282

Catalyst Architecture for Stable Single Atom Dispersion Enables Site-Specific Spectroscopic and Reactivity Measurements of CO Adsorbed to Pt Atoms, Oxidized Pt Clusters, and Metallic Pt Clusters on TiO ₂
journal, September 2017

DeRita, Leo; Dai, Sheng; Lopez-Zepeda, Kimberly
Journal of the American Chemical Society, Vol. 139, Issue 40
DOI: 10.1021/jacs.7b07093

Creating single-atom Pt-ceria catalysts by surface step decoration
journal, February 2016

Dvořák, Filip; Farnesi Camellone, Matteo; Tovt, Andrii
Nature Communications, Vol. 7, Issue 1
DOI: 10.1038/ncomms10801

Development of a reaction cell for in-situ/operando studies of surface of a catalyst under a reaction condition and during catalysis
journal, June 2016

Nguyen, Luan; Tao, Franklin (Feng)
Review of Scientific Instruments, Vol. 87, Issue 6
DOI: 10.1063/1.4946877

Quantitative depth profiling of Ce ³⁺ in Pt/CeO ₂ by in situ high-energy XPS in a hydrogen atmosphere
journal, January 2015

Kato, Shunsuke; Ammann, Markus; Huthwelker, Thomas
Physical Chemistry Chemical Physics, Vol. 17, Issue 7
DOI: 10.1039/C4CP05643D

Tuning the Pt/CeO ₂ Interface by in Situ Variation of the Pt Particle Size
journal, April 2018

Gänzler, Andreas M.; Casapu, Maria; Maurer, Florian
ACS Catalysis, Vol. 8, Issue 6
DOI: 10.1021/acscatal.8b00330

Redox-mediated conversion of atomically dispersed platinum to sub-nanometer particles
journal, January 2017

Lykhach, Yaroslava; Figueroba, Alberto; Skála, Tomáš
Journal of Materials Chemistry A, Vol. 5, Issue 19
DOI: 10.1039/C7TA02204B

Study of active surface centers of Pt/CeO2 catalysts prepared using radio-frequency plasma sputtering technique
journal, January 2019

Stadnichenko, Andrey I.; Muravev, Valerii V.; Koscheev, Sergey V.
Surface Science, Vol. 679
DOI: 10.1016/j.susc.2018.10.002

Ru/CeO2 catalysts for combustion of mixture of light hydrocarbons: Effect of preparation method and metal salt precursors
journal, January 2018

Okal, Janina; Zawadzki, Mirosław; Kraszkiewicz, Piotr
Applied Catalysis A: General, Vol. 549
DOI: 10.1016/j.apcata.2017.09.036

Morphology-Controllable Synthesis of Mesoporous CeO ₂ Nano- and Microstructures
journal, August 2005

Ho, Chunman; Yu, Jimmy C.; Kwong, Tszyan
Chemistry of Materials, Vol. 17, Issue 17
DOI: 10.1021/cm0507967

Ostwald ripening versus single atom trapping: towards understanding platinum particle sintering
journal, January 2017

Wang, Xing; van Bokhoven, Jeroen A.; Palagin, Dennis
Physical Chemistry Chemical Physics, Vol. 19, Issue 45
DOI: 10.1039/C7CP05887J

Facile synthesis of high-surface area platinum-doped ceria for low temperature CO oxidation
journal, August 2019

Gatla, Suresh; Aubert, Daniel; Flaud, Valérie
Catalysis Today, Vol. 333
DOI: 10.1016/j.cattod.2018.06.032

The surface chemistry of cerium oxide
journal, March 2015

Mullins, David R.
Surface Science Reports, Vol. 70, Issue 1
DOI: 10.1016/j.surfrep.2014.12.001

Influence of the metal precursor on the catalytic behavior of Pt/Ceria catalysts in the preferential oxidation of CO in the presence of H2 (PROX)
journal, April 2015

Jardim, Erika O.; Rico-Francés, Soledad; Coloma, Fernando
Journal of Colloid and Interface Science, Vol. 443
DOI: 10.1016/j.jcis.2014.12.013

Cerium oxide stoichiometry alteration via Sn deposition: Influence of temperature
journal, January 2009

Skála, Tomáš; Šutara, František; Prince, Kevin C.
Journal of Electron Spectroscopy and Related Phenomena, Vol. 169, Issue 1
DOI: 10.1016/j.elspec.2008.10.003

FT-IR study of CO adsorption on Pt/CeO2: characterisation and structural rearrangement of small Pt particles
journal, January 2005

Bazin, P.; Saur, O.; Lavalley, J. C.
Physical Chemistry Chemical Physics, Vol. 7, Issue 1
DOI: 10.1039/b414159h

Understanding of the oxygen activation on ceria- and ceria/alumina-supported gold catalysts: a study combining 18O/16O isotopic exchange and EPR spectroscopy
journal, September 2013

Lakshmanan, Pandian; Averseng, Frédéric; Bion, Nicolas
Gold Bulletin, Vol. 46, Issue 4
DOI: 10.1007/s13404-013-0103-z

Infrared studies of CO oxidation by oxygen and by water over Pt/Al2O3 and Pd/Al2O3 catalysts
journal, February 2012

Busca, Guido; Finocchio, Elisabetta; Escribano, Vicente Sanchez
Applied Catalysis B: Environmental, Vol. 113-114
DOI: 10.1016/j.apcatb.2011.11.035

The origin of the enhanced oxygen storage capacity of Ce1−x(Pd/Pt)xO2
journal, January 2011

Scanlon, David O.; Morgan, Benjamin J.; Watson, Graeme W.
Physical Chemistry Chemical Physics, Vol. 13, Issue 10
DOI: 10.1039/c0cp01635g

Oxide-based nanomaterials for fuel cell catalysis: the interplay between supported single Pt atoms and particles
journal, January 2017

Lykhach, Yaroslava; Bruix, Albert; Fabris, Stefano
Catalysis Science & Technology, Vol. 7, Issue 19
DOI: 10.1039/C7CY00710H

Physicochemical properties of Ce-containing three-way catalysts and the effect of Ce on catalyst activity
journal, February 1992

Nunan, J.
Journal of Catalysis, Vol. 133, Issue 2
DOI: 10.1016/0021-9517(92)90242-A

Preferential CO oxidation in hydrogen (PROX) on ceria-supported catalysts, part I: Oxidation state and surface species on Pt/CeO2 under reaction conditions
journal, January 2006

Pozdnyakova, O.; Teschner, D.; Wootsch, A.
Journal of Catalysis, Vol. 237, Issue 1
DOI: 10.1016/j.jcat.2005.10.014

Stabilization of Small Platinum Nanoparticles on Pt–CeO ₂ Thin Film Electrocatalysts During Methanol Oxidation
journal, August 2016

Brummel, Olaf; Waidhas, Fabian; Faisal, Firas
The Journal of Physical Chemistry C, Vol. 120, Issue 35
DOI: 10.1021/acs.jpcc.6b05962

Can the state of platinum species be unambiguously determined by the stretching frequency of an adsorbed CO probe molecule?
journal, January 2016

Aleksandrov, Hristiyan A.; Neyman, Konstantin M.; Hadjiivanov, Konstantin I.
Physical Chemistry Chemical Physics, Vol. 18, Issue 32
DOI: 10.1039/C6CP03988J

Room-Temperature CO Oxidation Catalyst: Low-Temperature Metal–Support Interaction between Platinum Nanoparticles and Nanosized Ceria
journal, August 2016

Gatla, Suresh; Aubert, Daniel; Agostini, Giovanni
ACS Catalysis, Vol. 6, Issue 9
DOI: 10.1021/acscatal.6b00677

Remarkable Performance of Ir ₁ /FeO _x Single-Atom Catalyst in Water Gas Shift Reaction
journal, October 2013

Lin, Jian; Wang, Aiqin; Qiao, Botao
Journal of the American Chemical Society, Vol. 135, Issue 41
DOI: 10.1021/ja408574m

DRIFTS study of CO adsorption on Pt nanoparticles supported by DFT calculations
journal, January 2017

Lentz, Claudia; Jand, Sara Panahian; Melke, Julia
Journal of Molecular Catalysis A: Chemical, Vol. 426
DOI: 10.1016/j.molcata.2016.10.002

Oxygen vacancy promoted CO oxidation over Pt/CeO 2 catalysts: A reaction at Pt–CeO 2 interface
journal, September 2014

Liu, Huan-Huan; Wang, Yu; Jia, Ai-Pin
Applied Surface Science, Vol. 314
DOI: 10.1016/j.apsusc.2014.06.196

Study of nano-structured ceria for catalytic CO oxidation
journal, January 2011

Valechha, Dolly; Lokhande, Suchita; Klementova, Mariana
Journal of Materials Chemistry, Vol. 21, Issue 11
DOI: 10.1039/c0jm03267k

Morphology Effect of CeO ₂ Support in the Preparation, Metal-Support Interaction, and Catalytic Performance of Pt/CeO ₂ Catalysts
journal, September 2013

Gao, Yuxian; Wang, Wendong; Chang, Sujie
ChemCatChem, Vol. 5, Issue 12
DOI: 10.1002/cctc.201300709

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Title: Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Abstract

Citation Formats

Adsorption sites, metal-support interactions, and oxygen spillover identified by vibrational spectroscopy of adsorbed CO: A model study on Pt/ceria catalysts journal, May 2012

Counting electrons on supported nanoparticles journal, December 2015

Introducing Time Resolution to Detect Ce 3+ Catalytically Active Sites at the Pt/CeO 2 Interface through Ambient Pressure X-ray Photoelectron Spectroscopy journal, December 2016

Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties journal, January 1998

Catalysis by Supported Single Metal Atoms journal, November 2016

Catalytically active Au-O(OH) x - species stabilized by alkali ions on zeolites and mesoporous oxides journal, November 2014

Synthesis of very highly dispersed platinum catalysts supported on carbon xerogels by the strong electrostatic adsorption method journal, January 2009

Catalytically Active and Spectator Ce 3+ in Ceria-Supported Metal Catalysts journal, June 2015

Atom trapping: a novel approach to generate thermally stable and regenerable single-atom catalysts journal, September 2018

CO oxidation for the characterization of reducibility in oxygen storage components of three-way automotive catalysts journal, December 1997

Infrared Emission and Theoretical Study of Carbon Monoxide Adsorbed on Alumina-Supported Rh, Ir, and Pt Catalysts journal, February 2006

Nature of stable single atom Pt catalysts dispersed on anatase TiO2 journal, November 2018

Single-atom catalysis of CO oxidation using Pt1/FeOx journal, July 2011

Sensitivity of CO oxidation toward metal oxidation state in ceria-supported catalysts: an operando DRIFTS-MS study journal, January 2016

Synergy between hydrogen and ceria in Pt-catalyzed CO oxidation: An investigation on Pt–CeO2 catalysts synthesized by solution combustion journal, November 2016

Probing Metal−Support Interactions under Oxidizing and Reducing Conditions: In Situ Raman and Infrared Spectroscopic and Scanning Transmission Electron Microscopic−X-ray Energy-Dispersive Spectroscopic Investigation of Supported Platinum Catalysts journal, April 2008

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Mechanisms of CO oxidation reaction and effect of chlorine ions on the CO oxidation reaction over Pt/CeO2 and Pt/CeO2/γ-Al2O3 catalysts journal, December 2004

Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts journal, September 2015

Activation of surface lattice oxygen in single-atom Pt/CeO 2 for low-temperature CO oxidation journal, December 2017

A comparison of CO oxidation on ceria-supported Pt, Pd, and Rh journal, January 1996

Control of Metal Nanocrystal Size Reveals Metal-Support Interface Role for Ceria Catalysts journal, July 2013

Study of CO Oxidation Kinetics on Rh/Ceria journal, November 1995

Catalyst Architecture for Stable Single Atom Dispersion Enables Site-Specific Spectroscopic and Reactivity Measurements of CO Adsorbed to Pt Atoms, Oxidized Pt Clusters, and Metallic Pt Clusters on TiO 2 journal, September 2017

Creating single-atom Pt-ceria catalysts by surface step decoration journal, February 2016

Development of a reaction cell for in-situ/operando studies of surface of a catalyst under a reaction condition and during catalysis journal, June 2016

Quantitative depth profiling of Ce 3+ in Pt/CeO 2 by in situ high-energy XPS in a hydrogen atmosphere journal, January 2015

Tuning the Pt/CeO 2 Interface by in Situ Variation of the Pt Particle Size journal, April 2018

Redox-mediated conversion of atomically dispersed platinum to sub-nanometer particles journal, January 2017

Study of active surface centers of Pt/CeO2 catalysts prepared using radio-frequency plasma sputtering technique journal, January 2019

Ru/CeO2 catalysts for combustion of mixture of light hydrocarbons: Effect of preparation method and metal salt precursors journal, January 2018

Morphology-Controllable Synthesis of Mesoporous CeO 2 Nano- and Microstructures journal, August 2005

Ostwald ripening versus single atom trapping: towards understanding platinum particle sintering journal, January 2017

Facile synthesis of high-surface area platinum-doped ceria for low temperature CO oxidation journal, August 2019

The surface chemistry of cerium oxide journal, March 2015

Influence of the metal precursor on the catalytic behavior of Pt/Ceria catalysts in the preferential oxidation of CO in the presence of H2 (PROX) journal, April 2015

Cerium oxide stoichiometry alteration via Sn deposition: Influence of temperature journal, January 2009

FT-IR study of CO adsorption on Pt/CeO2: characterisation and structural rearrangement of small Pt particles journal, January 2005

Understanding of the oxygen activation on ceria- and ceria/alumina-supported gold catalysts: a study combining 18O/16O isotopic exchange and EPR spectroscopy journal, September 2013

Infrared studies of CO oxidation by oxygen and by water over Pt/Al2O3 and Pd/Al2O3 catalysts journal, February 2012

The origin of the enhanced oxygen storage capacity of Ce1−x(Pd/Pt)xO2 journal, January 2011

Oxide-based nanomaterials for fuel cell catalysis: the interplay between supported single Pt atoms and particles journal, January 2017

Physicochemical properties of Ce-containing three-way catalysts and the effect of Ce on catalyst activity journal, February 1992

Preferential CO oxidation in hydrogen (PROX) on ceria-supported catalysts, part I: Oxidation state and surface species on Pt/CeO2 under reaction conditions journal, January 2006

Stabilization of Small Platinum Nanoparticles on Pt–CeO 2 Thin Film Electrocatalysts During Methanol Oxidation journal, August 2016

Can the state of platinum species be unambiguously determined by the stretching frequency of an adsorbed CO probe molecule? journal, January 2016

Room-Temperature CO Oxidation Catalyst: Low-Temperature Metal–Support Interaction between Platinum Nanoparticles and Nanosized Ceria journal, August 2016

Remarkable Performance of Ir 1 /FeO x Single-Atom Catalyst in Water Gas Shift Reaction journal, October 2013

DRIFTS study of CO adsorption on Pt nanoparticles supported by DFT calculations journal, January 2017

Oxygen vacancy promoted CO oxidation over Pt/CeO 2 catalysts: A reaction at Pt–CeO 2 interface journal, September 2014

Study of nano-structured ceria for catalytic CO oxidation journal, January 2011

Morphology Effect of CeO 2 Support in the Preparation, Metal-Support Interaction, and Catalytic Performance of Pt/CeO 2 Catalysts journal, September 2013

Title: Tuning Pt-CeO₂ interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

Adsorption sites, metal-support interactions, and oxygen spillover identified by vibrational spectroscopy of adsorbed CO: A model study on Pt/ceria catalysts
journal, May 2012

Counting electrons on supported nanoparticles
journal, December 2015

Introducing Time Resolution to Detect Ce ³⁺ Catalytically Active Sites at the Pt/CeO ₂ Interface through Ambient Pressure X-ray Photoelectron Spectroscopy
journal, December 2016

Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties
journal, January 1998

Catalysis by Supported Single Metal Atoms
journal, November 2016

Catalytically active Au-O(OH) _x - species stabilized by alkali ions on zeolites and mesoporous oxides
journal, November 2014

Synthesis of very highly dispersed platinum catalysts supported on carbon xerogels by the strong electrostatic adsorption method
journal, January 2009

Catalytically Active and Spectator Ce ³⁺ in Ceria-Supported Metal Catalysts
journal, June 2015

Atom trapping: a novel approach to generate thermally stable and regenerable single-atom catalysts
journal, September 2018

CO oxidation for the characterization of reducibility in oxygen storage components of three-way automotive catalysts
journal, December 1997

Infrared Emission and Theoretical Study of Carbon Monoxide Adsorbed on Alumina-Supported Rh, Ir, and Pt Catalysts
journal, February 2006

Nature of stable single atom Pt catalysts dispersed on anatase TiO2
journal, November 2018

Single-atom catalysis of CO oxidation using Pt1/FeOx
journal, July 2011

Sensitivity of CO oxidation toward metal oxidation state in ceria-supported catalysts: an operando DRIFTS-MS study
journal, January 2016

Synergy between hydrogen and ceria in Pt-catalyzed CO oxidation: An investigation on Pt–CeO2 catalysts synthesized by solution combustion
journal, November 2016

Probing Metal−Support Interactions under Oxidizing and Reducing Conditions: In Situ Raman and Infrared Spectroscopic and Scanning Transmission Electron Microscopic−X-ray Energy-Dispersive Spectroscopic Investigation of Supported Platinum Catalysts
journal, April 2008

Selective CO oxidation on Cu promoted Pt/Al2O3 and Pt/Nb2O5 catalysts
journal, October 2011

Water-Mediated Mars–Van Krevelen Mechanism for CO Oxidation on Ceria-Supported Single-Atom Pt ₁ Catalyst
journal, December 2016

Thermally stable single-atom platinum-on-ceria catalysts via atom trapping
journal, July 2016

CO Oxidation on Supported Single Pt Atoms: Experimental and ab Initio Density Functional Studies of CO Interaction with Pt Atom on θ-Al ₂ O ₃ (010) Surface
journal, August 2013

Mechanisms of CO oxidation reaction and effect of chlorine ions on the CO oxidation reaction over Pt/CeO2 and Pt/CeO2/γ-Al2O3 catalysts
journal, December 2004

Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts
journal, September 2015

Activation of surface lattice oxygen in single-atom Pt/CeO ₂ for low-temperature CO oxidation
journal, December 2017

A comparison of CO oxidation on ceria-supported Pt, Pd, and Rh
journal, January 1996

Control of Metal Nanocrystal Size Reveals Metal-Support Interface Role for Ceria Catalysts
journal, July 2013

Study of CO Oxidation Kinetics on Rh/Ceria
journal, November 1995

Catalyst Architecture for Stable Single Atom Dispersion Enables Site-Specific Spectroscopic and Reactivity Measurements of CO Adsorbed to Pt Atoms, Oxidized Pt Clusters, and Metallic Pt Clusters on TiO ₂
journal, September 2017

Creating single-atom Pt-ceria catalysts by surface step decoration
journal, February 2016

Development of a reaction cell for in-situ/operando studies of surface of a catalyst under a reaction condition and during catalysis
journal, June 2016

Quantitative depth profiling of Ce ³⁺ in Pt/CeO ₂ by in situ high-energy XPS in a hydrogen atmosphere
journal, January 2015

Tuning the Pt/CeO ₂ Interface by in Situ Variation of the Pt Particle Size
journal, April 2018

Redox-mediated conversion of atomically dispersed platinum to sub-nanometer particles
journal, January 2017

Study of active surface centers of Pt/CeO2 catalysts prepared using radio-frequency plasma sputtering technique
journal, January 2019

Ru/CeO2 catalysts for combustion of mixture of light hydrocarbons: Effect of preparation method and metal salt precursors
journal, January 2018

Morphology-Controllable Synthesis of Mesoporous CeO ₂ Nano- and Microstructures
journal, August 2005

Ostwald ripening versus single atom trapping: towards understanding platinum particle sintering
journal, January 2017

Facile synthesis of high-surface area platinum-doped ceria for low temperature CO oxidation
journal, August 2019

The surface chemistry of cerium oxide
journal, March 2015

Influence of the metal precursor on the catalytic behavior of Pt/Ceria catalysts in the preferential oxidation of CO in the presence of H2 (PROX)
journal, April 2015

Cerium oxide stoichiometry alteration via Sn deposition: Influence of temperature
journal, January 2009

FT-IR study of CO adsorption on Pt/CeO2: characterisation and structural rearrangement of small Pt particles
journal, January 2005

Understanding of the oxygen activation on ceria- and ceria/alumina-supported gold catalysts: a study combining 18O/16O isotopic exchange and EPR spectroscopy
journal, September 2013

Infrared studies of CO oxidation by oxygen and by water over Pt/Al2O3 and Pd/Al2O3 catalysts
journal, February 2012

The origin of the enhanced oxygen storage capacity of Ce1−x(Pd/Pt)xO2
journal, January 2011

Oxide-based nanomaterials for fuel cell catalysis: the interplay between supported single Pt atoms and particles
journal, January 2017

Physicochemical properties of Ce-containing three-way catalysts and the effect of Ce on catalyst activity
journal, February 1992

Preferential CO oxidation in hydrogen (PROX) on ceria-supported catalysts, part I: Oxidation state and surface species on Pt/CeO2 under reaction conditions
journal, January 2006

Stabilization of Small Platinum Nanoparticles on Pt–CeO ₂ Thin Film Electrocatalysts During Methanol Oxidation
journal, August 2016

Can the state of platinum species be unambiguously determined by the stretching frequency of an adsorbed CO probe molecule?
journal, January 2016

Room-Temperature CO Oxidation Catalyst: Low-Temperature Metal–Support Interaction between Platinum Nanoparticles and Nanosized Ceria
journal, August 2016

Remarkable Performance of Ir ₁ /FeO _x Single-Atom Catalyst in Water Gas Shift Reaction
journal, October 2013

DRIFTS study of CO adsorption on Pt nanoparticles supported by DFT calculations
journal, January 2017

Oxygen vacancy promoted CO oxidation over Pt/CeO 2 catalysts: A reaction at Pt–CeO 2 interface
journal, September 2014

Study of nano-structured ceria for catalytic CO oxidation
journal, January 2011

Morphology Effect of CeO ₂ Support in the Preparation, Metal-Support Interaction, and Catalytic Performance of Pt/CeO ₂ Catalysts
journal, September 2013