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Nano Research 2021, 14(12): 4841-4847 https://doi.org/10.1007/s12274-021-3443-7
Research Article | Issue | Published: 04 May 2021

Dispersion and support dictated properties and activities of Pt/metal oxide catalysts in heterogeneous CO oxidation

Show Author's Information Jiaojiao Song1,§,  Yixuan Yang1,§,  Shoujie Liu2,3,  Lei Li4,  Nan Yu2,  Yuteng Fan1,  Zhiming Chen1,  Long Kuai1( ),  Baoyou Geng2( )
School of Chemical and Environmental Engineering Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application Anhui Laboratory of Clean Catalytic Engineering Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, Anhui Polytechnic University, Wuhu 241000 China
College of Chemistry and Materials Science The key Laboratory of Functional Molecular Solids Ministry of Education the Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, Anhui Normal University, Wuhu 241002 China
Chemistry and Chemical Engineering of Guangdong LaboratoryShantou 515063 China
Chongqing Key Laboratory of Extraordinary Coordination Bond and Advanced Materials Techniques Yangtze Normal University Chongqing 408100 China

§ Jiaojiao Song and Yixuan Yang contributed equally to this work.

Keywords:
platinum, dispersion, CO oxidation, single-atom catalysis, nano catalysis
Topics:
Catalyst activity
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Song J, Yang Y, Liu S, et al. Dispersion and support dictated properties and activities of Pt/metal oxide catalysts in heterogeneous CO oxidation. Nano Research, 2021, 14(12): 4841-4847. https://doi.org/10.1007/s12274-021-3443-7
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Abstract Full text Electronic supplementary material About this article

The source of activity of metal/metal oxides has always been an interesting, important but highly challenging research topic in heterogeneous catalysis. In CO oxidation reaction, this work clarifies dispersion and support dictated activities of Pt including single-atom (Pt1), 2.8 nm (PtNP-S) and 36 nm (PtNP-L) Pt supported on both reducible TiO2 and "inert" Al2O3 supports. The X-ray absorption fine structure (XAFS) shows that chemical state of Pt is affected by both dispersion and support: Pt1 presents fully oxidized state in both Pt1/TiO2 and Pt1/Al2O3; PtNP-S in PtNP-S/TiO2 appear nearly oxidized state while about half of Pt is metallic state in PtNP-S/Al2O3; PtNP-L in both PtNP-L/TiO2 and PtNP-L/Al2O3 exhibit metallic state. All the Pt species supported on TiO2 present much lower apparent activation barriers (Eapp) than that on Al2O3. Moreover, Pt1/TiO2 possesses dozen times of efficiency than PtNP-S/TiO2 although they have similar Eapp values. A truth is finally made clear that a reducible metal oxide with low oxygen vacancy formation energy is critical to endow Pt/metal oxide a high activity and the single-atom dispersion of Pt is the way to maximize the active sites of Pt/metal oxide.


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Abstract
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Electronic supplementary material
About this article

Dispersion and support dictated properties and activities of Pt/metal oxide catalysts in heterogeneous CO oxidation

Show Author's information Jiaojiao Song1,§, Yixuan Yang1,§, Shoujie Liu2,3, Lei Li4, Nan Yu2, Yuteng Fan1, Zhiming Chen1, Long Kuai1( ), Baoyou Geng2( )
School of Chemical and Environmental Engineering Anhui Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application Anhui Laboratory of Clean Catalytic Engineering Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, Anhui Polytechnic University, Wuhu 241000 China
College of Chemistry and Materials Science The key Laboratory of Functional Molecular Solids Ministry of Education the Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials, Anhui Normal University, Wuhu 241002 China
Chemistry and Chemical Engineering of Guangdong LaboratoryShantou 515063 China
Chongqing Key Laboratory of Extraordinary Coordination Bond and Advanced Materials Techniques Yangtze Normal University Chongqing 408100 China

§ Jiaojiao Song and Yixuan Yang contributed equally to this work.

Abstract

The source of activity of metal/metal oxides has always been an interesting, important but highly challenging research topic in heterogeneous catalysis. In CO oxidation reaction, this work clarifies dispersion and support dictated activities of Pt including single-atom (Pt1), 2.8 nm (PtNP-S) and 36 nm (PtNP-L) Pt supported on both reducible TiO2 and "inert" Al2O3 supports. The X-ray absorption fine structure (XAFS) shows that chemical state of Pt is affected by both dispersion and support: Pt1 presents fully oxidized state in both Pt1/TiO2 and Pt1/Al2O3; PtNP-S in PtNP-S/TiO2 appear nearly oxidized state while about half of Pt is metallic state in PtNP-S/Al2O3; PtNP-L in both PtNP-L/TiO2 and PtNP-L/Al2O3 exhibit metallic state. All the Pt species supported on TiO2 present much lower apparent activation barriers (Eapp) than that on Al2O3. Moreover, Pt1/TiO2 possesses dozen times of efficiency than PtNP-S/TiO2 although they have similar Eapp values. A truth is finally made clear that a reducible metal oxide with low oxygen vacancy formation energy is critical to endow Pt/metal oxide a high activity and the single-atom dispersion of Pt is the way to maximize the active sites of Pt/metal oxide.

Keywords: platinum, dispersion, CO oxidation, single-atom catalysis, nano catalysis

References(63)

1

Lin, J.; Wang, X. D.; Zhang, T. Recent progress in CO oxidation over Pt-group-metal catalysts at low temperatures. Chin. J. Catal. 2016, 37, 1805-1813.
DOI Google Scholar
2

Jones, J.; Xiong, H. F.; DeLaRiva, A. T.; Peterson, E. J.; Pham, H.; Challa, S. R.; Qi, G.; Oh, S.; Wiebenga, M. H.; Hernández, X. I. P. et al. Thermally stable single-atom platinum-on-ceria catalysts via atom trapping. Science 2016, 353, 150-154.
DOI Google Scholar
3

Qiao, B. T.; Wang, A. Q.; Yang, X. F.; Allard, L. F.; Jiang, Z.; Cui, Y. T.; Liu, J. Y.; Li, J.; Zhang, T. Single-atom catalysis of CO oxidation using Pt1/FeOx. Nat. Chem. 2011, 3, 634-641.
DOI Google Scholar
4

Cao, L. N.; Liu, W.; Luo, Q. Q.; Yin, R. T.; Wang, B.; Weissenrieder, J.; Soldemo, M.; Yan, H.; Lin, Y.; Sun, Z. H. et al. Atomically dispersed iron hydroxide anchored on Pt for preferential oxidation of CO in H2. Nature 2019, 565, 631-635.
DOI Google Scholar
5

Zhang, L. L.; Zhou, M. X.; Wang, A. Q.; Zhang, T. Selective hydrogenation over supported metal catalysts: From nanoparticles to single atoms. Chem. Rev. 2020, 120, 683-733.
DOI Google Scholar
6

Wen, J. F.; Chen, Y. J.; Ji, S. F.; Zhang, J.; Wang, D. S.; Li, Y. D. Metal-organic frameworks-derived nitrogen-doped carbon supported nanostructured PtNi catalyst for enhanced hydrosilylation of 1-octene. Nano Res. 2019, 12, 2584-2588.
DOI Google Scholar
7

Chen, G. X.; Xu, C. F.; Huang, X. Q.; Ye, J. Y.; Gu, L.; Li, G.; Tang, Z. C.; Wu, B. H.; Yang, H. Y.; Zhao, Z. P. et al. Interfacial electronic effects control the reaction selectivity of platinum catalysts. Nat. Mater. 2016, 15, 564-569.
DOI Google Scholar
8

Fu, Q.; Saltsburg, H.; Flytzani-Stephanopoulos, M. Active nonmetallic Au and Pt species on ceria-based water-gas shift catalysts. Science 2003, 301, 935-938.
DOI Google Scholar
9

Zhai, Y. P.; Pierre, D.; Si, R.; Deng, W. L.; Ferrin, P.; Nilekar, A. U.; Peng, G. W.; Herron, J. A.; Bell, D. C.; Saltsburg, H. et al. Alkali-stabilized Pt-OHx species catalyze low-temperature water-gas shift reactions. Science 2010, 329, 1633-1636.
DOI Google Scholar
10

de Lima, S. M.; da Cruz, I. O.; Jacobs, G.; Davis, B. H.; Mattos, L. V.; Noronha, F. B. Steam reforming, partial oxidation, and oxidative steam reforming of ethanol over Pt/CeZrO2 catalyst. J. Catal. 2008, 257, 356-368.
DOI Google Scholar
11

Lin, L. L.; Zhou, W.; Cao, R.; Yao, S. Y.; Zhang, X.; Xu, W. Q.; Zheng, S. J.; Jiang, Z.; Yu, Q. L.; Li, Y. W. et al. Low-temperature hydrogen production from water and methanol using Pt/α-MoC catalysts. Nature 2017, 544, 80-83.
DOI Google Scholar
12

Zhang, N. Q.; Ye, C. L.; Yan, H.; Li, L. C.; He, H.; Wang, D. S.; Li, Y. D. Single-atom site catalysts for environmental catalysis. Nano Res. 2020, 13, 3165-3182.
DOI Google Scholar
13

Lang, R.; Du, X. R.; Huang, Y. K.; Jiang, X. Z.; Zhang, Q.; Guo, Y. L.; Liu, K. P.; Qiao, B. T.; Wang, A. Q.; Zhang, T. Single-atom catalysts based on the metal-oxide interaction. Chem. Rev. 2020, 120, 11986-12043.
DOI Google Scholar
14

Wang, A. Q.; Li, J.; Zhang, T. Heterogeneous single-atom catalysis. Nat. Rev. Chem. 2018, 2, 65-81.
DOI Google Scholar
15

Chen, Z.; Yang, W. J.; Wu, Y.; Zhang, C.; Luo, J.; Chen, C.; Li, Y. D. Atomic iron on mesoporous N-doped carbon to achieve dehydrogenation reaction at room temperature. Nano Res. 2020, 13, 3075-3081.
DOI Google Scholar
16

Cao, S. F.; Yang, M.; Elnabawy, A. O.; Trimpalis, A.; Li, S.; Wang, C. Y.; Göltl, F.; Chen, Z. H. Y.; Liu, J. L.; Shan, J. J. et al. Single-atom gold oxo-clusters prepared in alkaline solutions catalyse the heterogeneous methanol self-coupling reactions. Nat. Chem. 2019, 11, 1098-1105.
DOI Google Scholar
17

Yang, M.; Li, S.; Wang, Y.; Herron, J. A.; Xu, Y.; Allard, L. F.; Lee, S.; Huang, J.; Mavrikakis, M.; Flytzani-Stephanopoulos, M. Catalytically active Au-O(OH)x- species stabilized by alkali ions on zeolites and mesoporous oxides. Science 2014, 346, 1498-1501.
DOI Google Scholar
18

Gates, B. C.; Flytzani-Stephanopoulos, M.; Dixon, D. A.; Katz, A. Atomically dispersed supported metal catalysts: Perspectives and suggestions for future research. Catal. Sci. Technol. 2017, 7, 4259-4275.
DOI Google Scholar
19

Wu, K. L.; Chen, X.; Liu, S. J.; Pan, Y.; Cheong, W. C.; Zhu, W.; Cao, X.; Shen, R. A.; Chen, W. X.; Luo, J. et al. Porphyrin-like Fe-N4 sites with sulfur adjustment on hierarchical porous carbon for different rate-determining steps in oxygen reduction reaction. Nano Res. 2018, 11, 6260-6269.
DOI Google Scholar
20

Sun, T. T.; Xu, L. B.; Wang, D. S.; Li, Y. D. Metal organic frameworks derived single atom catalysts for electrocatalytic energy conversion. Nano Res. 2019, 12, 2067-2080.
DOI Google Scholar
21

Pan, Y.; Zhang, C.; Lin, Y.; Liu, Z.; Wang, M. M.; Chen, C. Electrocatalyst engineering and structure-activity relationship in hydrogen evolution reaction: From nanostructures to single atoms. Sci. China Mater. 2020, 63, 921-948.
DOI Google Scholar
22

Ding, K. L.; Gulec, A.; Johnson, A. M.; Schweitzer, N. M.; Stucky, G. D.; Marks, L. D.; Stair, P. C. Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts. Science 2015, 350, 189-192.
DOI Google Scholar
23

Maurer, F.; Jelic, J.; Wang, J. J.; Gänzler, A.; Dolcet, P.; Wöll, C.; Wang, Y. M.; Studt, F.; Casapu, M.; Grunwaldt, J. D. Tracking the formation, fate and consequence for catalytic activity of Pt single sites on CeO2. Nat. Catal. 2020, 3, 824-833.
DOI Google Scholar
24

Therrien, A. J.; Hensley, A. J. R.; Marcinkowski, M. D.; Zhang, R. Q.; Lucci, F. R.; Coughlin, B.; Schilling, A. C.; McEwen, J. S.; Sykes, E. C. H. An atomic-scale view of single-site Pt catalysis for low-temperature CO oxidation. Nat. Catal. 2018, 1, 192-198.
DOI Google Scholar
25

Nie, L.; Mei, D. H.; Xiong, H. F.; Peng, B.; Ren, Z. B.; Hernandez, X. I. P.; DeLaRiva, A.; Wang, M.; Engelhard, M. H.; Kovarik, L. et al. Activation of surface lattice oxygen in single-atom Pt/CeO2 for low-temperature CO oxidation. Science 2017, 358, 1419-1423.
DOI Google Scholar
26

Chen, W. L.; Ma, Y. L.; Li, F.; Pan, L.; Gao, W. P.; Xiang, Q.; Shang, W.; Song, C. Y.; Tao, P.; Zhu, H. et al. Strong electronic interaction of amorphous Fe2O3 nanosheets with single-atom Pt toward enhanced carbon monoxide oxidation. Adv. Funct. Mater. 2019, 29, 1904278.
DOI Google Scholar
27

Zhang, Z. L.; Zhu, Y. H.; Asakura, H.; Zhang, B.; Zhang, J. G.; Zhou, M. X.; Han, Y.; Tanaka, T.; Wang, A. Q.; Zhang, T. et al. Thermally stable single atom Pt/m-Al2O3 for selective hydrogenation and CO oxidation. Nat. Commun. 2017, 8, 16100.
DOI Google Scholar
28

Moses-DeBusk, M.; Yoon, M.; Allard, L. F.; Mullins, D. R.; Wu, Z. L.; Yang, X. F.; Veith, G.; Stocks, G. M.; Narula, C. K. CO oxidation on supported single Pt atoms: Experimental and ab initio density functional studies of CO interaction with Pt atom on θ-Al2O3(010) surface. J. Am. Chem. Soc. 2013, 135, 12634-12645.
DOI Google Scholar
29

Wang, H.; Liu, J. X.; Allard, L. F.; Lee, S.; Liu, J. L.; Li, H.; Wang, J. Q.; Wang, J.; Oh, S. H.; Li, W. et al. Surpassing the single-atom catalytic activity limit through paired Pt-O-Pt ensemble built from isolated Pt1 atoms. Nat. Commun. 2019, 10, 3808.
DOI Google Scholar
30

Beniya, A.; Higashi, S.; Ohba, N.; Jinnouchi, R.; Hirata, H.; Watanabe, Y. CO oxidation activity of non-reducible oxide-supported mass-selected few-atom Pt single-clusters. Nat. Commun. 2020, 11, 1888.
DOI Google Scholar
31

van Deelen, T. W.; Mejía, C. H.; de Jong, K. P. Control of metal-support interactions in heterogeneous catalysts to enhance activity and selectivity. Nat. Catal. 2019, 2, 955-970.
DOI Google Scholar
32

Jiao, J. Q.; Pan, Y.; Wang, B.; Yang, W. J.; Liu, S. J.; Zhang, C. Melamine-assisted pyrolytic synthesis of bifunctional cobalt-based core-shell electrocatalysts for rechargeable zinc-air batteries. J. Energy Chem. 2021, 53, 364-371.
DOI Google Scholar
33

Liu, K. P.; Zhao, X. T.; Ren, G. Q.; Yang, T.; Ren. Y. J.; Lee, A. F.; Su, Y.; Pan, X. L.; Zhang, J. C.; Chen, Z. Q. et al. Strong metal-support interaction promoted scalable production of thermally stable single-atom catalysts. Nat. Commun. 2020, 11, 1263.
DOI Google Scholar
34

Tang, Y.; Wang, Y. G.; Li, J. Theoretical investigations of Pt1@CeO2 single-atom catalyst for CO oxidation. J. Phys. Chem. C 2017, 121, 11281-11289.
DOI Google Scholar
35

Wang, C. L.; Gu X. K.; Yan, H.; Lin, Y.; Li, J. J.; Liu, D. D.; Li, W. X.; Lu, J. L. Water-mediated Mars-Van Krevelen mechanism for CO Oxidation on ceria-supported single-atom Pt1 catalyst. ACS Catal. 2017, 7, 887-891.
DOI Google Scholar
36

Wang, J.; Huang, Z. Q.; Liu, W.; Chang, C. R.; Tang, H. L.; Li, Z. J.; Chen, W. X.; Jia, C. J.; Yao, T.; Wei, S. Q. et al. Design of N-coordinated dual-metal sites: A stable and active Pt-free catalyst for acidic oxygen reduction reaction. J. Am. Chem. Soc. 2017, 139, 17281-17284.
DOI Google Scholar
37

Zhao, Y. Y.; Yang, K. R.; Wang, Z. C.; Yan, X. X.; Cao, S. F.; Ye, Y. F.; Dong, Q.; Zhang, X. Z.; Thorne, J. E.; Jin, L. et al. Stable iridium dinuclear heterogeneous catalysts supported on metal-oxide substrate for solar water oxidation. Proc. Natl. Acad. Sci. USA 2018, 115, 2902-2907.
DOI Google Scholar
38

Qin, R. X.; Liu, K. L.; Wu, Q. Y.; Zheng, N. F. Surface coordination chemistry of atomically dispersed metal catalysts. Chem. Rev. 2020, 120, 11810-11899.
DOI Google Scholar
39

Li, H. N.; Cao, C. Y.; Liu, J.; Shi, Y.; Si, R.; Gu, L.; Song, W. G. Cobalt single atoms anchored on N-doped ultrathin carbon nanosheets for selective transfer hydrogenation of nitroarenes. Sci. China Mater. 2019, 62, 1306-1314.
DOI Google Scholar
40

Kuai, L.; Chen, Z.; Liu, S. J.; Kan, E. J.; Yu, N.; Ren, Y. M.; Fang, C. H.; Li, X. Y.; Li, Y. D.; Geng, B. Y. Titania supported synergistic palladium single atoms and nanoparticles for room temperature ketone and aldehydes hydrogenation. Nat. Commun. 2020, 11, 48.
DOI Google Scholar
41

Wei, H. S.; Liu, X. Y.; Wang, A. Q.; Zhang, L. L.; Qiao, B. T.; Yang, X. F.; Huang, Y. Q.; Miao, S.; Liu, J. Y.; Zhang, T. FeOx-supported platinum single-atom and pseudo-single-atom catalysts for chemoselective hydrogenation of functionalized nitroarenes. Nat. Commun. 2014, 5, 5634.
DOI Google Scholar
42

Kwak, J. H.; Kovarik, L.; Szanyi, J. Heterogeneous catalysis on atomically dispersed supported metals: CO2 reduction on multifunctional Pd catalysts. ACS Catal. 2013, 3, 2094-2100.
DOI Google Scholar
43

Allard, L. F.; Borisevich, A.; Deng, W. L.; Si, R.; Flytzani-Stephanopoulos, M.; Overbury, S. H. Evolution of gold structure during thermal treatment of Au/FeOx catalysts revealed by aberration-corrected electron microscopy. J. Electron Microsc. 2009, 58, 199-212.
DOI Google Scholar
44

Kuai, L.; Liu, S. J.; Cao, S. F.; Ren, Y. M.; Kan, E. J.; Zhao, Y. Y.; Yu, N.; Li, F.; Li, X. Y.; Wu, Z. C. et al. Atomically dispersed Pt/metal oxide mesoporous catalysts from synchronous pyrolysis-deposition route for water-gas shift reaction. Chem. Mater. 2018, 30, 5534-5538.
DOI Google Scholar
45

Xiang, Y. P.; He, J.; Sun, N.; Fan, Y. T; Yang, L. M.; Fang, C. H.; Kuai, L. Hollow mesoporous CeO2 microspheres for efficient loading of Au single-atoms to catalyze the water-gas shift reaction. Microp. Mesop. Mater. 2020, 308, 110507.
DOI Google Scholar
46

Kan, E. J.; Kuai, L.; Wang, W. H.; Geng, B. Y. Delivery of highly active noble-metal nanoparticles into microspherical supports by an aerosol-spray method. Chem. Eur. J. 2015, 21, 13291-13296.
DOI Google Scholar
47

Teranishi, T.; Hosoe, M.; Tanaka, T.; Miyake, M. Size control of monodispersed Pt nanoparticles and their 2D organization by electrophoretic deposition. J. Phys. Chem. B 1999, 103, 3818-3827.
DOI Google Scholar
48

Wang, S. Z.; Kuai, L.; Huang, Y. C.; Yu, X.; Liu, Y. D.; Li, W. Z.; Chen, L.; Geng, B. Y. A highly efficient, clean-surface, porous platinum electrocatalyst and the inhibition effect of surfactants on catalytic activity. Chem. Eur. J. 2013, 19, 240-248.
DOI Google Scholar
49

Segall, M. D.; Lindan, P. J. D.; Probert, M. J.; Pickard, C. J.; Hasnip, P. J.; Clark S. J.; Payne, M. C. First-principles simulation: Ideas, illustrations and the CASTEP code. J. Phys. : Condens. Matter 2002, 14, 2717.
DOI Google Scholar
50

Perdew, J. P.; Burke, K.; Ernzerhof, M. Generalized gradient approximation made simple. Phys. Rev. Lett. 1996, 77, 3865.
DOI Google Scholar
51

Hamann, D. R.; Schlüter, M.; Chiang, C. Norm-conserving pseudopotentials. Phys. Rev. Lett. 1979, 43, 1494-1497.
DOI Google Scholar
52

Li, C.; Zhao, Y. F.; Gong, Y. Y.; Wang, T.; Sun, C. Q. Band gap engineering of early transition-metal-doped anatase TiO2: First principles calculations. Phys. Chem. Chem. Phys. 2014, 16, 21446-21451.
DOI Google Scholar
53

Yan, D. X.; Liu, Q.; Zeng, C.; Dong, N. B.; Huang, Y. D.; Xiao, W. Adsorption of lithium polysulfides on an anatase (101) and an α-Al2O3(0001) surface under external electric field with first principles calculations. Appl. Surf. Sci. 2019, 463, 331-338.
DOI Google Scholar
54

Xu, B.; Yang, H.; Zhou, G.; Wang, X. Strong metal-support interaction in size-controlled monodisperse palladium-hematite nano-heterostructures during a liquid-solid heterogeneous catalysis. Sci. China Mater. 2014, 57, 34-41.
DOI Google Scholar
55

Yang, M.; Liu, J. L.; Lee, S.; Zugic, B.; Huang, J.; Allard, L. F.; Flytzani-Stephanopoulos, M. A common single-site Pt(Ⅱ)-O(OH)x-species stabilized by sodium on "active" and "inert" supports catalyzes the water-gas shift reaction. J. Am. Chem. Soc. 2015, 137, 3470-3473.
DOI Google Scholar
56

Thang, H. V.; Pacchioni, G.; Derita, L.; Christopher, P. Nature of stable single atom Pt catalysts dispersed on anatase TiO2. J. Catal. 2018, 367, 104-114.
DOI Google Scholar
57

DeRita, L.; Resasco, J.; Dai, S.; Boubnov, A.; Thang, H. V.; Hoffman, A. S.; Ro, I.; Graham, G. W.; Bare, S. R.; Pacchioni, G. et al. Structural evolution of atomically dispersed Pt catalysts dictates reactivity. Nat. Mater. 2019, 18, 746-751.
DOI Google Scholar
58

Baxter, R. J.; Hu, P. Insight into why the Langmuir-Hinshelwood mechanism is generally preferred. J. Chem. Phys. 2002, 116, 4379.
DOI Google Scholar
59

Ertl, G. Reactions at surfaces: From atoms to complexity (Nobel Lecture). Angew. Chem., Int. Ed. 2008, 47, 3524-3535.
DOI Google Scholar
60

Qin, L.; Cui Y. Q.; Deng T. L.; Wei, F. H.; Zhang, X. F. Highly stable and active Cu1/CeO2 single-atom catalyst for CO oxidation: A DFT study. ChemPhyChem 2018, 19, 3346-3349.
DOI Google Scholar
61

Thang, H. V.; Pacchioni, G. CO oxidation promoted by a Pt4/TiO2 catalyst: Role of lattice oxygen at the metal/oxide interface. Catal. Lett. 2019, 149, 390-398.
DOI Google Scholar
62

Sanchez, M. G.; Gazquez, J. L. Oxygen vacancy model in strong metal-support interaction. J. Catal. 1987, 104, 120-135.
DOI Google Scholar
63

Gao, H. W. CO oxidation mechanism on the γ-Al2O3 supported single Pt atom: First principle study. Appl. Surf. Sci. 2016, 379, 347-357.
DOI Google Scholar
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Acknowledgements

Publication history

Received: 20 January 2021
Revised: 02 March 2021
Accepted: 07 March 2021
Published: 04 May 2021
Issue date: December 2021

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© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021

Acknowledgements

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 21801003 and 21871005), the Natural Science Foundation of Anhui Province (No. 1808085QB47), the University Synergy Innovation Program of Anhui Province (No. GXXT-2020-005), Fund for Outstanding Youth of Anhui Polytechnic University (Nos. 2019JQ01 and 2016BJRC001). The authors thank the National Synchrotron Radiation Laboratory (Beijing) for EXAFS collection and Hangzhou Precision New Materials and Technology Co., Ltd. (Hangzhou, China) for the DFT study.

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