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Cai M, Bian X, Xie F, Wu W, Cen P. Formation and Performance of Monolithic Catalysts for Selective Catalytic Reduction of Nitrogen Oxides: A Critical Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202101358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ming Cai
- School of Metallurgy Northeastern University NO.3-11 Wenhua Road Shenyang 110819 China
| | - Xue Bian
- School of Metallurgy Northeastern University NO.3-11 Wenhua Road Shenyang 110819 China
| | - Feng Xie
- School of Metallurgy Northeastern University NO.3-11 Wenhua Road Shenyang 110819 China
| | - Wen‐yuan Wu
- School of Metallurgy Northeastern University NO.3-11 Wenhua Road Shenyang 110819 China
| | - Peng Cen
- School of Metallurgy Northeastern University NO.3-11 Wenhua Road Shenyang 110819 China
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2
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Asundi AS, Hoffman AS, Bothra P, Boubnov A, Vila FD, Yang N, Singh JA, Zeng L, Raiford JA, Abild-Pedersen F, Bare SR, Bent SF. Understanding Structure-Property Relationships of MoO 3-Promoted Rh Catalysts for Syngas Conversion to Alcohols. J Am Chem Soc 2019; 141:19655-19668. [PMID: 31724857 DOI: 10.1021/jacs.9b07460] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rh-based catalysts have shown promise for the direct conversion of syngas to higher oxygenates. Although improvements in higher oxygenate yield have been achieved by combining Rh with metal oxide promoters, details of the structure of the promoted catalyst and the role of the promoter in enhancing catalytic performance are not well understood. In this work, we show that MoO3-promoted Rh nanoparticles form a novel catalyst structure in which Mo substitutes into the Rh surface, leading to both a 66-fold increase in turnover frequency and an enhancement in oxygenate yield. By applying a combination of atomically controlled synthesis, in situ characterization, and theoretical calculations, we gain an understanding of the promoter-Rh interactions that govern catalytic performance for MoO3-promoted Rh. We use atomic layer deposition to modify Rh nanoparticles with monolayer-precise amounts of MoO3, with a high degree of control over the structure of the catalyst. Through in situ X-ray absorption spectroscopy, we find that the atomic structure of the catalytic surface under reaction conditions consists of Mo-OH species substituted into the surface of the Rh nanoparticles. Using density functional theory calculations, we identify two roles of MoO3: first, the presence of Mo-OH in the catalyst surface enhances CO dissociation and also stabilizes a methanol synthesis pathway not present in the unpromoted catalyst; and second, hydrogen spillover from Mo-OH sites to adsorbed species on the Rh surface enhances hydrogenation rates of reaction intermediates.
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Affiliation(s)
- Arun S Asundi
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Adam S Hoffman
- SSRL , SLAC National Accelerator Laboratory , Menlo Park , California 94205 , United States
| | - Pallavi Bothra
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States.,SUNCAT Center for Interface Science and Catalysis , SLAC National Accelerator Laboratory , Menlo Park , California 94205 , United States
| | - Alexey Boubnov
- SSRL , SLAC National Accelerator Laboratory , Menlo Park , California 94205 , United States
| | - Fernando D Vila
- Department of Physics , University of Washington , Seattle , Washington 98195 , United States
| | - Nuoya Yang
- Department of Materials Science and Engineering , Stanford University , Stanford , California 94305 , United States
| | - Joseph A Singh
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Li Zeng
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - James A Raiford
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
| | - Frank Abild-Pedersen
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States.,SUNCAT Center for Interface Science and Catalysis , SLAC National Accelerator Laboratory , Menlo Park , California 94205 , United States
| | - Simon R Bare
- SSRL , SLAC National Accelerator Laboratory , Menlo Park , California 94205 , United States
| | - Stacey F Bent
- Department of Chemical Engineering , Stanford University , Stanford , California 94305 , United States
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3
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Replication of SMSI via ALD: TiO2 Overcoats Increase Pt-Catalyzed Acrolein Hydrogenation Selectivity. Catal Letters 2018. [DOI: 10.1007/s10562-018-2458-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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4
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Zhou P, Wang S, Tao C, Guo X, Hao L, Shao Q, Liu L, Wang YP, Chu W, Wang B, Luo SZ, Guo Z. PAA/alumina composites prepared with different molecular weight polymers and utilized as support for nickel-based catalyst. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21908] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Peng Zhou
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Song Wang
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - ChuanLan Tao
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Xingkui Guo
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Luhan Hao
- Department of Chemical and Biomolecular Engineering; University of Tennessee; Knoxville TN USA
| | - Qian Shao
- College of Chemical and Environmental Engineering; Shandong University of Science and Technology; Qingdao Shandong China
| | - Lei Liu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Ya-Ping Wang
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Wei Chu
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Bin Wang
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Shi-Zhong Luo
- School of Chemical Engineering; Sichuan University; Chengdu Sichuan China
| | - Zhanhu Guo
- Department of Chemical and Biomolecular Engineering; University of Tennessee; Knoxville TN USA
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5
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Yang N, Yoo JS, Schumann J, Bothra P, Singh JA, Valle E, Abild-Pedersen F, Nørskov JK, Bent SF. Rh-MnO Interface Sites Formed by Atomic Layer Deposition Promote Syngas Conversion to Higher Oxygenates. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01851] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nuoya Yang
- Department
of Materials Science and Engineering, Stanford University, 496 Lomita Mall, Stanford, California, 94305, United States
| | - Jong Suk Yoo
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
| | - Julia Schumann
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
- SLAC National Accelerator
Laboratory, SUNCAT Center for Interface Science and Catalysis, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
| | - Pallavi Bothra
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
- SLAC National Accelerator
Laboratory, SUNCAT Center for Interface Science and Catalysis, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
| | - Joseph A. Singh
- Department
of Chemistry, Stanford University, 333 Campus Drive, Stanford, California 94305, United States
| | - Eduardo Valle
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
| | - Frank Abild-Pedersen
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
- SLAC National Accelerator
Laboratory, SUNCAT Center for Interface Science and Catalysis, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
| | - Jens K. Nørskov
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
- SLAC National Accelerator
Laboratory, SUNCAT Center for Interface Science and Catalysis, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
| | - Stacey F. Bent
- Department
of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States
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6
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Mackus AJM, Weber MJ, Thissen NFW, Garcia-Alonso D, Vervuurt RHJ, Assali S, Bol AA, Verheijen MA, Kessels WMM. Atomic layer deposition of Pd and Pt nanoparticles for catalysis: on the mechanisms of nanoparticle formation. NANOTECHNOLOGY 2016; 27:034001. [PMID: 26636744 DOI: 10.1088/0957-4484/27/3/034001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The deposition of Pd and Pt nanoparticles by atomic layer deposition (ALD) has been studied extensively in recent years for the synthesis of nanoparticles for catalysis. For these applications, it is essential to synthesize nanoparticles with well-defined sizes and a high density on large-surface-area supports. Although the potential of ALD for synthesizing active nanocatalysts for various chemical reactions has been demonstrated, insight into how to control the nanoparticle properties (i.e. size, composition) by choosing suitable processing conditions is lacking. Furthermore, there is little understanding of the reaction mechanisms during the nucleation stage of metal ALD. In this work, nanoparticles synthesized with four different ALD processes (two for Pd and two for Pt) were extensively studied by transmission electron spectroscopy. Using these datasets as a starting point, the growth characteristics and reaction mechanisms of Pd and Pt ALD relevant for the synthesis of nanoparticles are discussed. The results reveal that ALD allows for the preparation of particles with control of the particle size, although it is also shown that the particle size distribution is strongly dependent on the processing conditions. Moreover, this paper discusses the opportunities and limitations of the use of ALD in the synthesis of nanocatalysts.
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Affiliation(s)
- Adriaan J M Mackus
- Department of Applied Physics, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
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7
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Jiang Y, Chen J, Zhang J, Li A, Zeng Y, Zhou F, Wang G, Wang R. Ultralow loading palladium nanocatalysts prepared by atomic layer deposition on three-dimensional graphite-coated nickel foam to enhance the ethanol electro-oxidation reaction. RSC Adv 2016. [DOI: 10.1039/c5ra24546j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Ultralow loading palladium nanoparticles were facilely synthesized on a three-dimensional graphite-coated nickel foam support by metal atomic layer deposition technology and used as a promising catalyst for ethanol electro-oxidation reaction.
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Affiliation(s)
- Yiwu Jiang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jinwei Chen
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jie Zhang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Anqi Li
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Yaping Zeng
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Feilong Zhou
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Gang Wang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Ruilin Wang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
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Weber MJ, Verheijen MA, Bol AA, Kessels WMM. Sub-nanometer dimensions control of core/shell nanoparticles prepared by atomic layer deposition. NANOTECHNOLOGY 2015; 26:094002. [PMID: 25676208 DOI: 10.1088/0957-4484/26/9/094002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Bimetallic core/shell nanoparticles (NPs) are the subject of intense research due to their unique electronic, optical and catalytic properties. Accurate and independent control over the dimensions of both core and shell would allow for unprecedented catalytic performance. Here, we demonstrate that both core and shell dimensions of Pd/Pt core/shell nanoparticles (NPs) supported on Al2O3 substrates can be controlled at the sub-nanometer level by using a novel strategy based on atomic layer deposition (ALD). From the results it is derived that the main conditions for accurate dimension control of these core/shell NPs are: (i) a difference in surface energy between the deposited core metal and the substrate to obtain island growth; (ii) a process yielding linear growth of the NP cores with ALD cycles to obtain monodispersed NPs with a narrow size distribution; (iii) a selective ALD process for the shell metal yielding a linearly increasing thickness to obtain controllable shell growth exclusively on the cores. For Pd/Pt core/shell NPs it is found that a minimum core diameter of 1 nm exists above which the NP cores are able to catalytically dissociate the precursor molecules for shell growth. In addition, initial studies on the stability of these core/shell NPs have been carried out, and it has been demonstrated that core/shell NPs can be deposited by ALD on high aspect ratio substrates such as nanowire arrays. These achievements show therefore that ALD has significant potential for the preparation of tuneable heterogeneous catalyst systems.
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Wang F, Xiao WY, Xiao GM. Atomic Layer Deposition of Zinc Oxide on HZSM-5 Template and Its Methanol Aromatization Performance. Catal Letters 2015. [DOI: 10.1007/s10562-015-1496-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Redekop EA, Galvita VV, Poelman H, Bliznuk V, Detavernier C, Marin GB. Delivering a Modifying Element to Metal Nanoparticles via Support: Pt–Ga Alloying during the Reduction of Pt/Mg(Al,Ga)Ox Catalysts and Its Effects on Propane Dehydrogenation. ACS Catal 2014. [DOI: 10.1021/cs500415e] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Evgeniy A. Redekop
- Laboratory for
Chemical Technology, Ghent University, Technologiepark 914, Ghent B-9052, Belgium
| | - Vladimir V. Galvita
- Laboratory for
Chemical Technology, Ghent University, Technologiepark 914, Ghent B-9052, Belgium
| | - Hilde Poelman
- Laboratory for
Chemical Technology, Ghent University, Technologiepark 914, Ghent B-9052, Belgium
| | - Vitaliy Bliznuk
- Department
of Materials Science and Engineering, Ghent University, Technologiepark
903, Ghent B-9052, Belgium
| | - Christophe Detavernier
- CoCooN Research
Group, Department of Solid State Sciences, Ghent University, Krijgslaan 281/S1, Ghent 9000, Belgium
| | - Guy B. Marin
- Laboratory for
Chemical Technology, Ghent University, Technologiepark 914, Ghent B-9052, Belgium
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11
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Assaud L, Monyoncho E, Pitzschel K, Allagui A, Petit M, Hanbücken M, Baranova EA, Santinacci L. 3D-nanoarchitectured Pd/Ni catalysts prepared by atomic layer deposition for the electrooxidation of formic acid. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:162-72. [PMID: 24605281 PMCID: PMC3943891 DOI: 10.3762/bjnano.5.16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/14/2014] [Indexed: 05/27/2023]
Abstract
Three-dimensionally (3D) nanoarchitectured palladium/nickel (Pd/Ni) catalysts, which were prepared by atomic layer deposition (ALD) on high-aspect-ratio nanoporous alumina templates are investigated with regard to the electrooxidation of formic acid in an acidic medium (0.5 M H2SO4). Both deposition processes, Ni and Pd, with various mass content ratios have been continuously monitored by using a quartz crystal microbalance. The morphology of the Pd/Ni systems has been studied by electron microscopy and shows a homogeneous deposition of granularly structured Pd onto the Ni substrate. X-ray diffraction analysis performed on Ni and NiO substrates revealed an amorphous structure, while the Pd coating crystallized into a fcc lattice with a preferential orientation along the [220]-direction. Surface chemistry analysis by X-ray photoelectron spectroscopy showed both metallic and oxide contributions for the Ni and Pd deposits. Cyclic voltammetry of the Pd/Ni nanocatalysts revealed that the electrooxidation of HCOOH proceeds through the direct dehydrogenation mechanism with the formation of active intermediates. High catalytic activities are measured for low masses of Pd coatings that were generated by a low number of ALD cycles, probably because of the cluster size effect, electronic interactions between Pd and Ni, or diffusion effects.
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Affiliation(s)
- Loïc Assaud
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Evans Monyoncho
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Kristina Pitzschel
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Anis Allagui
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Matthieu Petit
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Margrit Hanbücken
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Elena A Baranova
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Lionel Santinacci
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
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Liu X, Shen Y, Yang R, Zou S, Ji X, Shi L, Zhang Y, Liu D, Xiao L, Zheng X, Li S, Fan J, Stucky GD. Inkjet printing assisted synthesis of multicomponent mesoporous metal oxides for ultrafast catalyst exploration. NANO LETTERS 2012; 12:5733-5739. [PMID: 23051615 DOI: 10.1021/nl302992q] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We describe an inkjet printing assisted cooperative-assembly method for high-throughput generation of catalyst libraries (multicomponent mesoporous metal oxides) at a rate of 1,000,000-formulations/hour with up to eight-component compositions. The compositions and mesostructures of the libraries can be well-controlled and continuously varied. Fast identification of an inexpensive and efficient quaternary catalyst for photocatalytic hydrogen evolution is achieved via a multidimensional group testing strategy to reduce the number of performance validation experiments (25,000-fold reduction over an exhaustive one-by-one search).
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Affiliation(s)
- Xiaonao Liu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province 310027, China
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14
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Enterkin JA, Setthapun W, Elam JW, Christensen ST, Rabuffetti FA, Marks LD, Stair PC, Poeppelmeier KR, Marshall CL. Propane Oxidation over Pt/SrTiO3 Nanocuboids. ACS Catal 2011. [DOI: 10.1021/cs200092c] [Citation(s) in RCA: 135] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James A. Enterkin
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Worajit Setthapun
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jeffrey W. Elam
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Steven T. Christensen
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Federico A. Rabuffetti
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Laurence D. Marks
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Peter C. Stair
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Kenneth R. Poeppelmeier
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Christopher L. Marshall
- Chemical Sciences and Engineering Division and ‡Energy Systems Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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15
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Sonström P, Halbach B, Tambou Djakpou S, Ritz B, Ahrenstorf K, Grathwohl G, Weller H, Bäumer M. Foam, fleece and honeycomb: catalytically active coatings from colloidally prepared nanoparticles. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00077b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Chalker PR, Romani S, Marshall PA, Rosseinsky MJ, Rushworth S, Williams PA. Liquid injection atomic layer deposition of silver nanoparticles. NANOTECHNOLOGY 2010; 21:405602. [PMID: 20829564 DOI: 10.1088/0957-4484/21/40/405602] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Silver nanoparticles are being developed for applications in plasmonics, catalysts and analytical methods, amongst others. Herein, we demonstrate the growth of silver nanoparticles using an atomic layer deposition (ALD) process for the first time. The silver was deposited from pulses of the organometallic precursor (hfac)Ag(1,5-COD) ((hexafluoroacetylacetonato)silver(I)(1,5-cyclooctadiene)) dissolved in a 0.1 M toluene solution. Catalytic oxidative dehydrogenation of the silver was achieved using intermittent pulses of propanol. The effect of substrate temperature on the size and distribution of nanoparticles has been investigated over the temperature range 110-150 degrees C. Transmission electron microscopy reveals that the nanoparticles consist of face centred cubic, facetted silver crystallites. The localized surface plasmon modes of the nanoparticles have been investigated using electron energy loss spectroscopy mapping. The distributions of plasmons within the ALD nanoparticles are comparable to those grown by solution methods. Both dipolar and quadrupolar resonant modes are observed, which is consistent with previous discrete dipole approximation models. Energy loss mapping of a loss feature at 8.1 eV reveals that it correlates with the bulk or volume region of the silver nanoparticles investigated here.
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Affiliation(s)
- P R Chalker
- Department of Materials Science and Engineering, University of Liverpool, Liverpool, UK.
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17
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Lu J, Stair P. Low-Temperature ABC-Type Atomic Layer Deposition: Synthesis of Highly Uniform Ultrafine Supported Metal Nanoparticles. Angew Chem Int Ed Engl 2010; 49:2547-51. [DOI: 10.1002/anie.200907168] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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18
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Lu J, Stair P. Low-Temperature ABC-Type Atomic Layer Deposition: Synthesis of Highly Uniform Ultrafine Supported Metal Nanoparticles. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200907168] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Schröder D, Roithová J, Alikhani E, Kwapien K, Sauer J. Preferential Activation of Primary CH Bonds in the Reactions of Small Alkanes with the Diatomic MgO+. Cation. Chemistry 2010; 16:4110-9. [PMID: 20187038 DOI: 10.1002/chem.200902373] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Detlef Schröder
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo námestí 2, 16610 Prague 6, Czech Republic.
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