Unraveling the Intermediate Reaction Complexes and Critical Role of Support-Derived Oxygen Atoms in CO Oxidation on Single-Atom Pt/CeO2

Lu, Yubing; Zhou, Shulan; Kuo, Chun-Te; Kunwar, Deepak; Thompson, Coogan; Hoffman, Adam S.; Boubnov, Alexey; Lin, Sen; Datye, Abhaya K.; Guo, Hua; Karim, Ayman M.

doi:10.1021/acscatal.1c01900

Title: Unraveling the Intermediate Reaction Complexes and Critical Role of Support-Derived Oxygen Atoms in CO Oxidation on Single-Atom Pt/CeO₂

Journal Article · Thu Jul 01 00:00:00 EDT 2021 · ACS Catalysis

DOI:https://doi.org/10.1021/acscatal.1c01900· OSTI ID:1843823

^[1]; Zhou, Shulan ^[2]; Kuo, Chun-Te ^[1];

^[3]; Thompson, Coogan ^[1]; Hoffman, Adam S. ^[4]; Boubnov, Alexey ^[4];

^[5];

^[3];

^[1]

Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Univ. of New Mexico, Albuquerque, NM (United States); Shandong University of Technology, Zibo (China)
Univ. of New Mexico, Albuquerque, NM (United States)
Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
Univ. of New Mexico, Albuquerque, NM (United States); Fuzhou University (China)

CeO₂-supported Pt single-atom catalysts have been extensively studied due to their relevance in automobile emission control and for the fundamental understanding of CeO₂-based catalysts. Though CeO₂-supported Pt nanoparticles are often more active than their single-atom counterparts, the former could easily redisperse to Pt single atom under oxidizing diesel conditions. Therefore, to maximize the reactivity of every Pt atom, it is important to fully understand the reaction mechanism of CeO₂-supported Pt single atoms. Here, we report a CO oxidation study on a Pt/CeO₂ single-atom catalyst, where we can account for all of the neighbors using in situ and operando spectroscopy techniques and microcalorimetric measurements. Coupled with density functional theory calculations, we present a comprehensive picture of the dynamics of the surface species, the role of surface intermediates, and explain the observed reaction kinetics. We started with a catalyst containing exclusively single atoms and used in situ/operando spectroscopy to provide evidence for their stability during the reaction and to identify the Pt₁ complexes before and during the reaction and their binding to CO. The results reveal that in the precatalyst, Pt is present as Pt(O)₄ on the CeO₂(111) step edge sites, but during CO oxidation, we find that two Pt₁ complexes coexist, representing two states of the same active site in the reaction cycle. The dominant state/complex remains Pt(O)₄, which adsorbs CO very weakly as shown by CO microcalorimetry. The second, minority state/complex, Pt(CO)(O)₃ is generated through the reaction of Pt(O)₄ with CO, and CO is bound strongly to Pt₁. Labile oxygen adatoms from the CeO₂ surface play a major role in the regeneration of Pt(O)₄ either directly from Pt(O)₃ or by reaction with the strongly adsorbed CO in Pt(CO)(O)₃. We show that the formation of an oxygen vacancy and generation of a labile O* are not barrierless, which explains the long lifetime of Pt(CO)(O)₃ and its detectability despite being a minority complex. The results help to develop a comprehensive view of the dynamic evolution of Pt₁ complexes along the reaction cycle and provide mechanistic insights to guide the design of Pt-based single-atom catalysts.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: SLAC

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); US Army Research Office (ARO); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); National Science Foundation of China; Jiangxi Provincial Natural Science Foundation; National Natural Science Foundation of China (NSFC)

Grant/Contract Number:: AC02-76SF00515; W911NF-16-1-0400; W911NF-19-1-0308; W911NF-20-2-0058; FA9550-18-1-0413; DMR1828731; 21962007; 2020BABL203009; GJJ190697; 21973013; 21673040

OSTI ID:: 1843823

Journal Information:: ACS Catalysis, Vol. 11, Issue 14; ISSN 2155-5435

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

References (81)

Origin of the High CO Oxidation Activity on CeO ₂ Supported Pt Nanoparticles: Weaker Binding of CO or Facile Oxygen Transfer from the Support? Lu, Yubing; Thompson, Coogan; Kunwar, Deepak ChemCatChem, Vol. 12, Issue 6 https://doi.org/10.1002/cctc.201901848	journal	March 2020
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT Ravel, B.; Newville, M. Journal of Synchrotron Radiation, Vol. 12, Issue 4 https://doi.org/10.1107/S0909049505012719	journal	June 2005
Isolated Metal Active Site Concentration and Stability Control Catalytic CO ₂ Reduction Selectivity Matsubu, John C.; Yang, Vanessa N.; Christopher, Phillip Journal of the American Chemical Society, Vol. 137, Issue 8 https://doi.org/10.1021/ja5128133	journal	February 2015
Toward Rational Design of Oxide-Supported Single-Atom Catalysts: Atomic Dispersion of Gold on Ceria Liu, Jin-Cheng; Wang, Yang-Gang; Li, Jun Journal of the American Chemical Society, Vol. 139, Issue 17 https://doi.org/10.1021/jacs.7b01602	journal	April 2017
Uniformity Is Key in Defining Structure–Function Relationships for Atomically Dispersed Metal Catalysts: The Case of Pt/CeO ₂ Resasco, Joaquin; DeRita, Leo; Dai, Sheng Journal of the American Chemical Society, Vol. 142, Issue 1 https://doi.org/10.1021/jacs.9b09156	journal	December 2019
Projector augmented-wave method Blöchl, P. E. Physical Review B, Vol. 50, Issue 24, p. 17953-17979 https://doi.org/10.1103/PhysRevB.50.17953	journal	December 1994
Studies of the water-gas-shift reaction on ceria-supported Pt, Pd, and Rh: Implications for oxygen-storage properties Bunluesin, T.; Gorte, R. J.; Graham, G. W. Applied Catalysis B: Environmental, Vol. 15, Issue 1-2 https://doi.org/10.1016/S0926-3373(97)00040-4	journal	January 1998
Catalysis by Doped Oxides McFarland, Eric W.; Metiu, Horia Chemical Reviews, Vol. 113, Issue 6 https://doi.org/10.1021/cr300418s	journal	December 2012
Catalysis by Supported Single Metal Atoms Liu, Jingyue ACS Catalysis, Vol. 7, Issue 1 https://doi.org/10.1021/acscatal.6b01534	journal	November 2016
Wavelet data analysis of EXAFS spectra Timoshenko, J.; Kuzmin, A. Computer Physics Communications, Vol. 180, Issue 6 https://doi.org/10.1016/j.cpc.2008.12.020	journal	June 2009
Challenges in the use of density functional theory to examine catalysis by M-doped ceria surfaces Krcha, Matthew D.; Janik, Michael J. International Journal of Quantum Chemistry, Vol. 114, Issue 1 https://doi.org/10.1002/qua.24548	journal	October 2013
Catalytically active Au-O(OH) _x - species stabilized by alkali ions on zeolites and mesoporous oxides Yang, Ming; Li, Sha; Wang, Yuan Science, Vol. 346, Issue 6216 https://doi.org/10.1126/science.1260526	journal	November 2014
Enhanced CO Oxidation Rates at the Interface of Mesoporous Oxides and Pt Nanoparticles An, Kwangjin; Alayoglu, Selim; Musselwhite, Nathan Journal of the American Chemical Society, Vol. 135, Issue 44 https://doi.org/10.1021/ja4088743	journal	October 2013
CO reactive adsorption at low temperature over CuO/CeO 2 structured catalytic monolith Di Benedetto, Almerinda; Landi, Gianluca; Lisi, Luciana International Journal of Hydrogen Energy, Vol. 42, Issue 17 https://doi.org/10.1016/j.ijhydene.2017.03.077	journal	April 2017
Exploiting the dynamic properties of Pt on ceria for low-temperature CO oxidation Ferré, G.; Aouine, M.; Bosselet, F. Catalysis Science & Technology, Vol. 10, Issue 12 https://doi.org/10.1039/D0CY00732C	journal	January 2020
Tuning the Structure of Platinum Particles on Ceria In Situ for Enhancing the Catalytic Performance of Exhaust Gas Catalysts Gänzler, Andreas M.; Casapu, Maria; Vernoux, Philippe Angewandte Chemie International Edition, Vol. 56, Issue 42 https://doi.org/10.1002/anie.201707842	journal	September 2017
On Identification of Labile Oxygen in Ceria-Based Solid Solutions: Which Oxygen Leaves the Lattice? Sravan Kumar, K. B.; Deshpande, Parag A. The Journal of Physical Chemistry C, Vol. 119, Issue 16 https://doi.org/10.1021/jp512977b	journal	April 2015
CO oxidation for the characterization of reducibility in oxygen storage components of three-way automotive catalysts Bunluesin, T.; Gorte, R. J.; Graham, G. W. Applied Catalysis B: Environmental, Vol. 14, Issue 1-2 https://doi.org/10.1016/S0926-3373(97)00016-7	journal	December 1997
Heterogeneous single-atom catalysis Wang, Aiqin; Li, Jun; Zhang, Tao Nature Reviews Chemistry, Vol. 2, Issue 6 https://doi.org/10.1038/s41570-018-0010-1	journal	May 2018
Greatly facilitated oxygen vacancy formation in ceria nanocrystallites Migani, Annapaola; Vayssilov, Georgi N.; Bromley, Stefan T. Chemical Communications, Vol. 46, Issue 32 https://doi.org/10.1039/c0cc01091j	journal	January 2010
Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation Zhang, Zailei; Zhu, Yihan; Asakura, Hiroyuki Nature Communications, Vol. 8, Issue 1 https://doi.org/10.1038/ncomms16100	journal	July 2017
Chemical Synthesis of Single Atomic Site Catalysts Ji, Shufang; Chen, Yuanjun; Wang, Xiaolu Chemical Reviews, Vol. 120, Issue 21 https://doi.org/10.1021/acs.chemrev.9b00818	journal	April 2020
Stabilizing High Metal Loadings of Thermally Stable Platinum Single Atoms on an Industrial Catalyst Support Kunwar, Deepak; Zhou, Shulan; DeLaRiva, Andrew ACS Catalysis, Vol. 9, Issue 5 https://doi.org/10.1021/acscatal.8b04885	journal	February 2019
A Common Single-Site Pt(II)–O(OH) _x – Species Stabilized by Sodium on “Active” and “Inert” Supports Catalyzes the Water-Gas Shift Reaction Yang, Ming; Liu, Jilei; Lee, Sungsik Journal of the American Chemical Society, Vol. 137, Issue 10 https://doi.org/10.1021/ja513292k	journal	March 2015
Single-atom catalysis of CO oxidation using Pt1/FeOx Qiao, Botao; Wang, Aiqin; Yang, Xiaofeng Nature Chemistry, Vol. 3, Issue 8 https://doi.org/10.1038/nchem.1095	journal	July 2011
Continuous Cauchy wavelet transform analyses of EXAFS spectra: A qualitative approach Muñoz, Manuel; Argoul, Pierre; Farges, François American Mineralogist, Vol. 88, Issue 4 https://doi.org/10.2138/am-2003-0423	journal	April 2003
A climbing image nudged elastic band method for finding saddle points and minimum energy paths Henkelman, Graeme; Uberuaga, Blas P.; Jónsson, Hannes The Journal of Chemical Physics, Vol. 113, Issue 22, p. 9901-9904 https://doi.org/10.1063/1.1329672	journal	December 2000
Thermally stable single-atom platinum-on-ceria catalysts via atom trapping Jones, J.; Xiong, H.; DeLaRiva, A. T. Science, Vol. 353, Issue 6295 https://doi.org/10.1126/science.aaf8800	journal	July 2016
A Single-Site Platinum CO Oxidation Catalyst in Zeolite KLTL: Microscopic and Spectroscopic Determination of the Locations of the Platinum Atoms Kistler, Joseph D.; Chotigkrai, Nutchapon; Xu, Pinghong Angewandte Chemie International Edition, Vol. 53, Issue 34 https://doi.org/10.1002/anie.201403353	journal	July 2014
Activating Lattice Oxygen at the Twisted Surface in a Mesoporous CeO ₂ Single Crystal for Efficient and Durable Catalytic CO Oxidation Xiao, Yongchun; Li, Hao; Xie, Kui Angewandte Chemie International Edition, Vol. 60, Issue 10 https://doi.org/10.1002/anie.202013633	journal	January 2021
A tailored oxide interface creates dense Pt single-atom catalysts with high catalytic activity Yoo, Mi; Yu, Young-Sang; Ha, Hyunwoo Energy & Environmental Science, Vol. 13, Issue 4 https://doi.org/10.1039/C9EE03492G	journal	January 2020
Local Structure and Electronic State of Atomically Dispersed Pt Supported on Nanosized CeO ₂ Kottwitz, Matthew; Li, Yuanyuan; Palomino, Robert M. ACS Catalysis, Vol. 9, Issue 9 https://doi.org/10.1021/acscatal.9b02083	journal	August 2019
Activation of surface lattice oxygen in single-atom Pt/CeO ₂ for low-temperature CO oxidation Nie, Lei; Mei, Donghai; Xiong, Haifeng Science, Vol. 358, Issue 6369 https://doi.org/10.1126/science.aao2109	journal	December 2017
Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts Ding, K.; Gulec, A.; Johnson, A. M. Science, Vol. 350, Issue 6257 https://doi.org/10.1126/science.aac6368	journal	September 2015
Experimental criterion for the absence of artifacts in the measurement of rates of heterogeneous catalytic reactions Madon, Rostam J.; Boudart, Michel Industrial & Engineering Chemistry Fundamentals, Vol. 21, Issue 4, p. 438-447 https://doi.org/10.1021/i100008a022	journal	November 1982
Atomic (single, double, and triple atoms) catalysis: frontiers, opportunities, and challenges Chen, Z. W.; Chen, L. X.; Yang, C. C. Journal of Materials Chemistry A, Vol. 7, Issue 8 https://doi.org/10.1039/C8TA11416A	journal	January 2019
An atomic-scale view of single-site Pt catalysis for low-temperature CO oxidation Therrien, Andrew J.; Hensley, Alyssa J. R.; Marcinkowski, Matthew D. Nature Catalysis, Vol. 1, Issue 3 https://doi.org/10.1038/s41929-018-0028-2	journal	March 2018
Tracking the formation, fate and consequence for catalytic activity of Pt single sites on CeO2 Maurer, Florian; Jelic, Jelena; Wang, Junjun Nature Catalysis, Vol. 3, Issue 10 https://doi.org/10.1038/s41929-020-00508-7	journal	September 2020
Creating single-atom Pt-ceria catalysts by surface step decoration Dvořák, Filip; Farnesi Camellone, Matteo; Tovt, Andrii Nature Communications, Vol. 7, Issue 1 https://doi.org/10.1038/ncomms10801	journal	February 2016
Structure Sensitivity of Acetylene Semi-Hydrogenation on Pt Single Atoms and Subnanometer Clusters Kuo, Chun-Te; Lu, Yubing; Kovarik, Libor ACS Catalysis, Vol. 9, Issue 12 https://doi.org/10.1021/acscatal.9b02840	journal	October 2019
Bridging homogeneous and heterogeneous catalysis by heterogeneous single-metal-site catalysts Cui, Xinjiang; Li, Wu; Ryabchuk, Pavel Nature Catalysis, Vol. 1, Issue 6 https://doi.org/10.1038/s41929-018-0090-9	journal	June 2018
Larch: An Analysis Package for XAFS and Related Spectroscopies Newville, Matthew Journal of Physics: Conference Series, Vol. 430 https://doi.org/10.1088/1742-6596/430/1/012007	journal	April 2013
Tuning the Pt/CeO ₂ Interface by in Situ Variation of the Pt Particle Size Gänzler, Andreas M.; Casapu, Maria; Maurer, Florian ACS Catalysis, Vol. 8, Issue 6 https://doi.org/10.1021/acscatal.8b00330	journal	April 2018
A highly CO-tolerant atomically dispersed Pt catalyst for chemoselective hydrogenation Lin, Lili; Yao, Siyu; Gao, Rui Nature Nanotechnology, Vol. 14, Issue 4 https://doi.org/10.1038/s41565-019-0366-5	journal	February 2019
Correlating DFT Calculations with CO Oxidation Reactivity on Ga-Doped Pt/CeO ₂ Single-Atom Catalysts Feng, Yingxin; Wan, Qiang; Xiong, Haifeng The Journal of Physical Chemistry C, Vol. 122, Issue 39 https://doi.org/10.1021/acs.jpcc.8b05815	journal	September 2018
A diagnostic test of the kinetic regime in a packed bed reactor Koros, R. M.; Nowak, E. J. Chemical Engineering Science, Vol. 22, Issue 3 https://doi.org/10.1016/0009-2509(67)80134-9	journal	March 1967
Fabrication, characterization, and stability of supported single-atom catalysts Chen, Yaxin; Huang, Zhiwei; Ma, Zhen Catalysis Science & Technology, Vol. 7, Issue 19 https://doi.org/10.1039/C7CY00723J	journal	January 2017
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set Kresse, G.; Furthmüller, J. Computational Materials Science, Vol. 6, Issue 1, p. 15-50 https://doi.org/10.1016/0927-0256(96)00008-0	journal	July 1996
Single-Atom Catalysts: Synthetic Strategies and Electrochemical Applications Chen, Yuanjun; Ji, Shufang; Chen, Chen Joule, Vol. 2, Issue 7 https://doi.org/10.1016/j.joule.2018.06.019	journal	July 2018
Identification of the active complex for CO oxidation over single-atom Ir-on-MgAl2O4 catalysts Lu, Yubing; Wang, Jiamin; Yu, Liang Nature Catalysis, Vol. 2, Issue 2 https://doi.org/10.1038/s41929-018-0192-4	journal	December 2018
Special points for Brillouin-zone integrations Monkhorst, Hendrik J.; Pack, James D. Physical Review B, Vol. 13, Issue 12, p. 5188-5192 https://doi.org/10.1103/PhysRevB.13.5188	journal	June 1976
Synergy between Metallic and Oxidized Pt Sites Unravelled during Room Temperature CO Oxidation on Pt/Ceria Meunier, Frederic C.; Cardenas, Luis; Kaper, Helena Angewandte Chemie International Edition, Vol. 60, Issue 7 https://doi.org/10.1002/anie.202013223	journal	December 2020
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set Kresse, G.; Furthmüller, J. Physical Review B, Vol. 54, Issue 16, p. 11169-11186 https://doi.org/10.1103/PhysRevB.54.11169	journal	October 1996
Unravelling the Different Reaction Pathways for Low Temperature CO Oxidation on Pt/CeO ₂ and Pt/Al ₂ O ₃ by Spatially Resolved Structure–Activity Correlations Gänzler, Andreas M.; Casapu, Maria; Doronkin, Dmitry E. The Journal of Physical Chemistry Letters, Vol. 10, Issue 24 https://doi.org/10.1021/acs.jpclett.9b02768	journal	November 2019
Theoretical Investigations of Pt ₁ @CeO ₂ Single-Atom Catalyst for CO Oxidation Tang, Yan; Wang, Yang-Gang; Li, Jun The Journal of Physical Chemistry C, Vol. 121, Issue 21 https://doi.org/10.1021/acs.jpcc.7b00313	journal	May 2017
First-Principles Kinetic and Spectroscopic Insights into Single-Atom Catalysis Alexopoulos, Konstantinos; Wang, Yifan; Vlachos, Dionisios G. ACS Catalysis, Vol. 9, Issue 6 https://doi.org/10.1021/acscatal.9b00179	journal	April 2019
Single-Atom Pd ₁ /Graphene Catalyst Achieved by Atomic Layer Deposition: Remarkable Performance in Selective Hydrogenation of 1,3-Butadiene Yan, Huan; Cheng, Hao; Yi, Hong Journal of the American Chemical Society, Vol. 137, Issue 33 https://doi.org/10.1021/jacs.5b06485	journal	August 2015
Theoretical Approach To Predict the Stability of Supported Single-Atom Catalysts Su, Ya-Qiong; Wang, Yifan; Liu, Jin-Xun ACS Catalysis, Vol. 9, Issue 4 https://doi.org/10.1021/acscatal.9b00252	journal	March 2019
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation Perdew, John P.; Chevary, J. A.; Vosko, S. H. Physical Review B, Vol. 46, Issue 11 https://doi.org/10.1103/PhysRevB.46.6671	journal	September 1992
Two-dimensional iron-phthalocyanine (Fe-Pc) monolayer as a promising single-atom-catalyst for oxygen reduction reaction: a computational study Wang, Yu; Yuan, Hao; Li, Yafei Nanoscale, Vol. 7, Issue 27 https://doi.org/10.1039/C5NR00302D	journal	January 2015
In Situ Redispersion of Platinum Autoexhaust Catalysts: An On-Line Approach to Increasing Catalyst Lifetimes? Nagai, Yasutaka; Dohmae, Kazuhiko; Ikeda, Yasuo Angewandte Chemie International Edition, Vol. 47, Issue 48 https://doi.org/10.1002/anie.200803126	journal	October 2008
Single-atom Catalysis Using Pt/Graphene Achieved through Atomic Layer Deposition Sun, Shuhui; Zhang, Gaixia; Gauquelin, Nicolas Scientific Reports, Vol. 3, Issue 1 https://doi.org/10.1038/srep01775	journal	May 2013
Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen Pereira-Hernández, Xavier Isidro; DeLaRiva, Andrew; Muravev, Valery Nature Communications, Vol. 10, Issue 1 https://doi.org/10.1038/s41467-019-09308-5	journal	March 2019
Atomically dispersed iron hydroxide anchored on Pt for preferential oxidation of CO in H2 Cao, Lina; Liu, Wei; Luo, Qiquan Nature, Vol. 565, Issue 7741 https://doi.org/10.1038/s41586-018-0869-5	journal	January 2019
Dynamic charge and oxidation state of Pt/CeO2 single-atom catalysts Daelman, Nathan; Capdevila-Cortada, Marçal; López, Núria Nature Materials, Vol. 18, Issue 11 https://doi.org/10.1038/s41563-019-0444-y	journal	August 2019
Structural evolution of atomically dispersed Pt catalysts dictates reactivity DeRita, Leo; Resasco, Joaquin; Dai, Sheng Nature Materials, Vol. 18, Issue 7 https://doi.org/10.1038/s41563-019-0349-9	journal	April 2019
Wavelet analysis of extended X-ray absorption fine structure data: Theory, application Xia, Zhaoming; Zhang, Hao; Shen, Kongchao Physica B: Condensed Matter, Vol. 542 https://doi.org/10.1016/j.physb.2018.04.039	journal	August 2018
Multiple-scattering calculations of x-ray-absorption spectra Zabinsky, S. I.; Rehr, J. J.; Ankudinov, A. Physical Review B, Vol. 52, Issue 4 https://doi.org/10.1103/PhysRevB.52.2995	journal	July 1995
Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles Liu, Lichen; Corma, Avelino Chemical Reviews, Vol. 118, Issue 10 https://doi.org/10.1021/acs.chemrev.7b00776	journal	April 2018
Well-Defined Materials for Heterogeneous Catalysis: From Nanoparticles to Isolated Single-Atom Sites Li, Zhi; Ji, Shufang; Liu, Yiwei Chemical Reviews, Vol. 120, Issue 2 https://doi.org/10.1021/acs.chemrev.9b00311	journal	December 2019
Single rhodium atoms anchored in micropores for efficient transformation of methane under mild conditions Tang, Yu; Li, Yuting; Fung, Victor Nature Communications, Vol. 9, Issue 1 https://doi.org/10.1038/s41467-018-03235-7	journal	March 2018
Remarkable Performance of Ir ₁ /FeO _x Single-Atom Catalyst in Water Gas Shift Reaction Lin, Jian; Wang, Aiqin; Qiao, Botao Journal of the American Chemical Society, Vol. 135, Issue 41 https://doi.org/10.1021/ja408574m	journal	October 2013
A versatile approach for quantification of surface site fractions using reaction kinetics: The case of CO oxidation on supported Ir single atoms and nanoparticles Lu, Yubing; Kuo, Chun-Te; Kovarik, Libor Journal of Catalysis, Vol. 378 https://doi.org/10.1016/j.jcat.2019.08.023	journal	October 2019
Selective Hydrogenation over Supported Metal Catalysts: From Nanoparticles to Single Atoms Zhang, Leilei; Zhou, Maoxiang; Wang, Aiqin Chemical Reviews, Vol. 120, Issue 2 https://doi.org/10.1021/acs.chemrev.9b00230	journal	September 2019
Fundamentals and Catalytic Applications of CeO ₂ -Based Materials Montini, Tiziano; Melchionna, Michele; Monai, Matteo Chemical Reviews, Vol. 116, Issue 10 https://doi.org/10.1021/acs.chemrev.5b00603	journal	April 2016
In Situ X-ray Absorption Fine Structure Studies on the Effect of pH on Pt Electronic Density during Aqueous Phase Reforming of Glycerol Karim, Ayman M.; Howard, Christopher; Roberts, Benjamin ACS Catalysis, Vol. 2, Issue 11 https://doi.org/10.1021/cs3005049	journal	September 2012
IFEFFIT : interactive XAFS analysis and FEFF fitting Newville, Matthew Journal of Synchrotron Radiation, Vol. 8, Issue 2 https://doi.org/10.1107/S0909049500016964	journal	March 2001
Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation Herzing, A. A.; Kiely, C. J.; Carley, A. F. Science, Vol. 321, Issue 5894 https://doi.org/10.1126/science.1159639	journal	September 2008
Stable single-atom platinum catalyst trapped in carbon onion graphitic shells for improved chemoselective hydrogenation of nitroarenes Yan, Xiaoli; Duan, Pei; Zhang, Fengwei Carbon, Vol. 143 https://doi.org/10.1016/j.carbon.2018.11.021	journal	March 2019
C–O bond activation using ultralow loading of noble metal catalysts on moderately reducible oxides Fu, Jiayi; Lym, Jonathan; Zheng, Weiqing Nature Catalysis, Vol. 3, Issue 5 https://doi.org/10.1038/s41929-020-0445-x	journal	March 2020
Mild oxidation of methane to methanol or acetic acid on supported isolated rhodium catalysts Shan, Junjun; Li, Mengwei; Allard, Lawrence F. Nature, Vol. 551, Issue 7682 https://doi.org/10.1038/nature24640	journal	November 2017

Similar Records

Origin of the High CO Oxidation Activity on CeO₂ Supported Pt Nanoparticles: Weaker Binding of CO or Facile Oxygen Transfer from the Support?

Journal Article · Fri Dec 27 00:00:00 EST 2019 · ChemCatChem · OSTI ID:1843823

Lu, Yubing; Thompson, Coogan; Kunwar, Deepak; +2 more

Catalytic CO Oxidation on MgAl₂O₄-Supported Iridium Single Atoms: Ligand Configuration and Site Geometry

Journal Article · Thu May 20 00:00:00 EDT 2021 · Journal of Physical Chemistry. C · OSTI ID:1843823

Wang, Jiamin; Lu, Yubing; Liu, Liping; +7 more

CO oxidation on MgAl₂O₄ supported Ir_n: activation of lattice oxygen in the subnanometer regime and emergence of nuclearity-activity volcano

Journal Article · Thu Jan 20 00:00:00 EST 2022 · Journal of Materials Chemistry. A · OSTI ID:1843823

Lu, Yubing; Thompson, Coogan; Kuo, Chun-Te; +7 more

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
single-atom catalysts
reaction mechanism
CO oxidation
operando characterization
density functional theory

Title: Unraveling the Intermediate Reaction Complexes and Critical Role of Support-Derived Oxygen Atoms in CO Oxidation on Single-Atom Pt/CeO2

Citation Formats

References (81)

Similar Records

Related Subjects

Title: Unraveling the Intermediate Reaction Complexes and Critical Role of Support-Derived Oxygen Atoms in CO Oxidation on Single-Atom Pt/CeO₂