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Lee SW, Kim JM, Park W, Lee H, Lee GR, Jung Y, Jung YS, Park JY. Controlling hot electron flux and catalytic selectivity with nanoscale metal-oxide interfaces. Nat Commun 2021; 12:40. [PMID: 33397946 PMCID: PMC7782808 DOI: 10.1038/s41467-020-20293-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 11/18/2020] [Indexed: 11/10/2022] Open
Abstract
Interaction between metal and oxides is an important molecular-level factor that influences the selectivity of a desirable reaction. Therefore, designing a heterogeneous catalyst where metal-oxide interfaces are well-formed is important for understanding selectivity and surface electronic excitation at the interface. Here, we utilized a nanoscale catalytic Schottky diode from Pt nanowire arrays on TiO2 that forms a nanoscale Pt-TiO2 interface to determine the influence of the metal-oxide interface on catalytic selectivity, thereby affecting hot electron excitation; this demonstrated the real-time detection of hot electron flow generated under an exothermic methanol oxidation reaction. The selectivity to methyl formate and hot electron generation was obtained on nanoscale Pt nanowires/TiO2, which exhibited ~2 times higher partial oxidation selectivity and ~3 times higher chemicurrent yield compared to a diode based on Pt film. By utilizing various Pt/TiO2 nanostructures, we found that the ratio of interface to metal sites significantly affects the selectivity, thereby enhancing chemicurrent yield in methanol oxidation. Density function theory (DFT) calculations show that formation of the Pt-TiO2 interface showed that selectivity to methyl formate formation was much larger in Pt nanowire arrays than in Pt films because of the different reaction mechanism.
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Affiliation(s)
- Si Woo Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jong Min Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Woonghyeon Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyosun Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Korea Institute of Industrial Technology (KITECH), Intelligent Sustainable Material R&D Group, Cheonan, 31056, Republic of Korea
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Yousung Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
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Garg A, Gonçalves DS, Liu Y, Wang Z, Wang L, Yoo JS, Kolpak A, Rioux RM, Zanchet D, Román-Leshkov Y. Impact of Transition Metal Carbide and Nitride Supports on the Electronic Structure of Thin Platinum Overlayers. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01272] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Daniela Zanchet
- Institute of Chemistry, University of Campinas, Campinas, SP 13083-970, Brazil
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3
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Perez Cardenas MT, Kong C, He J, Litvin S, Meyerson ML, Nie Z. Immobilized Seed-Mediated Growth of Two-Dimensional Array of Metallic Nanocrystals with Asymmetric Shapes. ACS NANO 2018; 12:1107-1119. [PMID: 29370517 DOI: 10.1021/acsnano.7b06104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bottom-up fabrication of such arrays with specific orientation of nanoparticles remains a challenge. In this paper, we report an immobilized seed-mediated growth strategy for the fabrication of two-dimensional (2D) arrays of mono- and bimetallic polyhedral nanocrystals with well-defined shapes and orientations on a substrate. This method relies on the controlled solution-phase deposition of metals (i.e., Au and Pd) on a selectively exposed surface of self-assembled seed nanoparticles that are immobilized on a substrate through collapsed polymer brushes. By using this approach, we demonstrated the preparation of various 2D arrays of shaped Au nanocrystals and Au core/Pd shell nanocrystals with asymmetric geometry of two halves and controlled orientations with respect to the substrate. The shape evolution of seeds to final nanocrystals was systematically monitored and evaluated by electron microscopic imaging. Our study suggests that the shape and orientation of nanocrystals within arrays is determined by the preferential orientation of assembled seed nanoparticles on the substrate and controllable deposition of metals on exposed crystal facets of immobilized seeds. The synthetic approach we developed presents an important addition to current tools for the fabrication of substrate-supported functional nanostructures.
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Affiliation(s)
- Maria T Perez Cardenas
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
| | - Chuncai Kong
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
- School of Science, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University, Xi'an 710049, ShanXi People's Republic of China
| | - Jie He
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
- Department of Chemistry and Institute of Materials Science, University of Connecticut , Storrs, Connecticut 06269, United States
| | - Samantha Litvin
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
| | - Melissa L Meyerson
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
| | - Zhihong Nie
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States
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4
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Mahmoud MA. Reducing the photocatalysis induced by hot electrons of plasmonic nanoparticles due to tradeoff of photothermal heating. Phys Chem Chem Phys 2017; 19:32016-32023. [DOI: 10.1039/c7cp03855k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The photothermal heating by the plasmonic nanoparticles lowers their photocatalytic efficiency due to the desperation of the reacting materials.
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Affiliation(s)
- Mahmoud A. Mahmoud
- Chemical Engineering
- Department of Biomedical Engineering
- Department of Chemistry
- Department of Physics and Astronomy
- The University of Texas at San Antonio
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5
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Oh S, Qadir K, Park JY. Nature of Active Sites and Their Quantitative Measurement in Two-Dimensional Pt Metal Catalysts. Catal Letters 2016. [DOI: 10.1007/s10562-016-1909-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Yang X, Mueanngern Y, Baker QA, Baker LR. Crotonaldehyde hydrogenation on platinum–titanium oxide and platinum–cerium oxide catalysts: selective CO bond hydrogen requires platinum sites beyond the oxide–metal interface. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00858e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated a series of Pt–TiO2 and Pt–CeO2 catalysts for crotonaldehyde hydrogenation with the goal of better understanding the kinetics of CO bond hydrogenation.
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Affiliation(s)
- Xin Yang
- The Ohio State University
- Department of Chemistry and Biochemistry
- Columbus
- USA
| | - Yutichai Mueanngern
- The Ohio State University
- Department of Chemistry and Biochemistry
- Columbus
- USA
| | - Quinn A. Baker
- The Ohio State University
- Department of Chemistry and Biochemistry
- Columbus
- USA
| | - L. Robert Baker
- The Ohio State University
- Department of Chemistry and Biochemistry
- Columbus
- USA
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Ahlers SJ, Pohl MM, Holena M, Linke D, Kondratenko EV. Direct propanol synthesis from CO2, C2H4, and H2 over Cs–Au/TiO2 rutile: effect of promoter loading, temperature and feed composition. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01425e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combining catalytic and characterisation studies with statistical data analysis for elucidating factors determining CO2 conversion to propanol with H2 and C2H4.
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Affiliation(s)
- S. J. Ahlers
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - M.-M. Pohl
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - M. Holena
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - D. Linke
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - E. V. Kondratenko
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock
- 18059 Rostock
- Germany
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Park JY, Baker LR, Somorjai GA. Role of hot electrons and metal-oxide interfaces in surface chemistry and catalytic reactions. Chem Rev 2015; 115:2781-817. [PMID: 25791926 DOI: 10.1021/cr400311p] [Citation(s) in RCA: 161] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jeong Young Park
- †Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, South Korea.,‡Graduate School of EEWS, KAIST, Daejeon 305-701, South Korea
| | - L Robert Baker
- §Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Gabor A Somorjai
- ∥Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.,⊥Materials Sciences and Chemical Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, Berkeley, California 94720, United States
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9
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Novio F, Monahan D, Coppel Y, Antorrena G, Lecante P, Philippot K, Chaudret B. Surface Chemistry on Small Ruthenium Nanoparticles: Evidence for Site Selective Reactions and Influence of Ligands. Chemistry 2014; 20:1287-97. [DOI: 10.1002/chem.201303935] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Indexed: 11/08/2022]
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10
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Volkov VV, Kravchenko TA, Roldughin VI. Metal nanoparticles in catalytic polymer membranes and ion-exchange systems for advanced purification of water from molecular oxygen. RUSSIAN CHEMICAL REVIEWS 2013. [DOI: 10.1070/rc2013v082n05abeh004325] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Burghaus U. Applications of electron beam lithography in surface science and catalysis – model-nano-array catalysts. CATALYSIS 2013. [DOI: 10.1039/9781849737203-00141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Applications of electron beam lithography (EBL) in surface science and catalysis are detailed. Advantages and disadvantages of EBL in that field are critically discussed. Emphasis is placed on ultra-high vacuum model studies utilizing so-called model nano array catalysts which consist of a simple predetermined perriodic arrangement of clusters on a support. Discussed are surface reactions as well as the kinetics and dynamics of the interactions of gas-phase species with EBL catalysts. In addition, physical properties of these model catalysts are describes including theire cleaning, thermal stability, and composition.
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Affiliation(s)
- Uwe Burghaus
- North Dakota State UniversityFargo, North Dakota,
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12
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Brodoceanu D, Fang C, Voelcker NH, Bauer CT, Wonn A, Kroner E, Arzt E, Kraus T. Fabrication of metal nanoparticle arrays by controlled decomposition of polymer particles. NANOTECHNOLOGY 2013; 24:085304. [PMID: 23385827 DOI: 10.1088/0957-4484/24/8/085304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a novel fabrication method for ordered arrays of metal nanoparticles that exploits the uniform arrangement of polymer beads deposited as close-packed monolayers. In contrast to colloidal lithography that applies particles as masks, we used thermal decomposition of the metal-covered particles to precisely define metal structures. Large arrays of noble metal (Au, Ag, Pt) nanoparticles were produced in a three-step process on silicon, fused silica and sapphire substrates, demonstrating the generality of this approach. Polystyrene spheres with diameters ranging between 110 nm and 1 μm were convectively assembled into crystalline monolayers, coated with metal and annealed in a resistive furnace or using an ethanol flame. The thermal decomposition of the polymer microspheres converted the metal layer into particles arranged in hexagonal arrays that preserved the order of the original monolayer. Both the particle size and the interparticle distance were adjusted via the thickness of the metal coating and the sphere diameter, respectively.
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Affiliation(s)
- D Brodoceanu
- INM-Leibniz Institute for New Materials, Germany.
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13
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Lara P, Casanove MJ, Lecante P, Fazzini PF, Philippot K, Chaudret B. Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14757b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Simulating the Complexities of Heterogeneous Catalysis with Model Systems: Case studies of SiO2 Supported Pt-Group Metals. Top Catal 2011. [DOI: 10.1007/s11244-011-9671-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Cao W, Huang T, Xu XHN, Elsayed-Ali HE. Localized surface plasmon resonance of single silver nanoparticles studied by dark-field optical microscopy and spectroscopy. JOURNAL OF APPLIED PHYSICS 2011; 109:34310. [PMID: 21383872 PMCID: PMC3048885 DOI: 10.1063/1.3544349] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 12/07/2010] [Indexed: 05/30/2023]
Abstract
Localized surface plasmon resonance (LSPR) of Ag nanoparticles (NPs) with different shapes and disk-shaped Ag NP pairs with varying interparticle distance is studied using dark-field optical microscopy and spectroscopy (DFOMS). Disk-, square-, and triangular-shaped Ag NPs were fabricated on indium tin oxide-coated glass substrates by electron beam lithography. The LSPR spectra collected from single Ag NPs within 5×5 arrays using DFOMS exhibited pronounced redshifts as the NP shape changed from disk to square and to triangular. The shape-dependent experimental LSPR spectra are in good agreement with simulations using the discrete dipole approximation model, although there are small deviations in the peak wavelengths for square- and triangular-shaped NPs. The LSPR spectra of disk-shaped Ag NP pairs with varying interparticle distances were acquired from five different locations across the pair axis. It was clearly observed that the LSPR wavelength redshifts as the interparticle distance decreases, indicating a strong interaction when two Ag NPs are close to each other.
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Bratlie KM, Lee H, Komvopoulos K, Yang P, Somorjai GA. Platinum nanoparticle shape effects on benzene hydrogenation selectivity. NANO LETTERS 2007; 7:3097-101. [PMID: 17877408 DOI: 10.1021/nl0716000] [Citation(s) in RCA: 535] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Benzene hydrogenation was investigated in the presence of a surface monolayer consisting of Pt nanoparticles of different shapes (cubic and cuboctahedral) and tetradecyltrimethylammonium bromide (TTAB). Infrared spectroscopy indicated that TTAB binds to the Pt surface through a weak C-H...Pt bond of the alkyl chain. The catalytic selectivity was found to be strongly affected by the nanoparticle shape. Both cyclohexane and cyclohexene product molecules were formed on cuboctahedral nanoparticles, whereas only cyclohexane was produced on cubic nanoparticles. These results are the same as the product selectivities obtained on Pt(111) and Pt(100) single crystals in earlier studies. The apparent activation energy for cyclohexane production on cubic nanoparticles is 10.9 +/- 0.4 kcal/mol, while for cuboctahedral nanoparticles, the apparent activation energies for cyclohexane and cyclohexene production are 8.3 +/- 0.2 and 12.2 +/- 0.4 kcal/mol, respectively. These activation energies are lower, and corresponding turnover rates are three times higher than those obtained with single-crystal Pt surfaces.
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Affiliation(s)
- Kaitlin M Bratlie
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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