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Bathomarco CG, Franke KN, Ferreira AP. Aspects of the interaction between Au and Fe in supported catalysts applied to the preferential CO oxidation. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.12.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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2
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Gogate MR. New perspectives on the nature and imaging of active site in small metallic particles: I. Geometric effects. CHEM ENG COMMUN 2019. [DOI: 10.1080/00986445.2019.1692002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Local Melting of Gold Thin Films by Femtosecond Laser-Interference Processing to Generate Nanoparticles on a Source Target. NANOMATERIALS 2018; 8:nano8070477. [PMID: 29958429 PMCID: PMC6070938 DOI: 10.3390/nano8070477] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 06/22/2018] [Accepted: 06/23/2018] [Indexed: 12/04/2022]
Abstract
Shape- and size-controlled metallic nanoparticles are very important due to their wide applicability. Such particles have been fabricated by chemosynthesis, chemical-vapor deposition, and laser processing. Pulsed-laser deposition and laser-induced dot transfer use ejections of molten layers and solid-liquid-solid processes to fabricate nanoparticles with a radius of some tens to hundreds of nm. In these processes, the nanoparticles are collected on an acceptor substrate. In the present experiment, we used laser-interference processing of gold thin films, which deposited nanoparticles directly on the source thin film with a yield ratio. A typical nanoparticle had roundness fr=0.99 and circularity fcirc=0.869, and the radius was controllable between 69 and 188 nm. The smallest radius was 82 nm on average, and the smallest standard deviation was 3 nm. The simplicity, high yield, and ideal features of the nanoparticles produced by this method will broaden the range of applications of nanoparticles in fields such as plasmonics.
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Zhang J, Claverie J, Chaker M, Ma D. Colloidal Metal Nanoparticles Prepared by Laser Ablation and their Applications. Chemphyschem 2017; 18:986-1006. [DOI: 10.1002/cphc.201601220] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 02/02/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Jianming Zhang
- School of Chemistry and Chemical Engineering; Jiangsu University; Zhenjiang 212013 China
| | - Jerome Claverie
- Department of Chemistry; University of Sherbrooke; Sherbrooke Quebec J1K 2R1 Canada
| | - Mohamed Chaker
- Institut National de la Recherche Scientifique; Center of Énergie, Matériaux et Télécommunications; 1650, Boul. Lionel-Boulet Varennes Quebec J3X 1S2 Canada
| | - Dongling Ma
- Institut National de la Recherche Scientifique; Center of Énergie, Matériaux et Télécommunications; 1650, Boul. Lionel-Boulet Varennes Quebec J3X 1S2 Canada
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Dinparast L, Valizadeh H, Bahadori MB, Soltani S, Asghari B, Rashidi MR. Design, synthesis, α-glucosidase inhibitory activity, molecular docking and QSAR studies of benzimidazole derivatives. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Si R, Liu J, Yang K, Chen X, Dai W, Fu X. Temperature-programed surface reaction study of CO oxidation over Au/TiO2 at low temperature: An insight into nature of the reaction process. J Catal 2014. [DOI: 10.1016/j.jcat.2013.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Guczi L, Beck A, Pászti Z. Gold catalysis: Effect of particle size on reactivity towards various substrates. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.08.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shinde VM, Madras G. Kinetics of carbon monoxide oxidation with Sn0.95M0.05O2−δ(M = Cu, Fe, Mn, Co) catalysts. Catal Sci Technol 2012. [DOI: 10.1039/c1cy00421b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Qian K, Luo L, Chen C, Yang S, Huang W. Finely Dispersed Au Nanoparticles on SiO2 Achieved by the C60 Additive and Their Catalytic Activity. ChemCatChem 2010. [DOI: 10.1002/cctc.201000342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Xu H, Chu W, Luo J, Liu M. New Au/FeOx/SiO2 catalysts using deposition–precipitation for low-temperature carbon monoxide oxidation. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.02.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Study of FeOx/Au inverse model catalysts by in situ sum frequency generation vibrational spectroscopy. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11144-009-5523-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Beck A, Horváth A, Stefler G, Katona R, Geszti O, Tolnai G, Liotta L, Guczi L. Formation and structure of Au/TiO2 and Au/CeO2 nanostructures in mesoporous SBA-15. Catal Today 2008. [DOI: 10.1016/j.cattod.2008.05.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Integrative chemistry toward the first spontaneous generation of gold nanoparticles within macrocellular polyHIPE supports (Au@polyHIPE) and their application to eosin reduction. REACT FUNCT POLYM 2007. [DOI: 10.1016/j.reactfunctpolym.2007.06.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qian K, Jiang Z, Huang W. Effect of oxygen treatment on the catalytic activity of Au/SiO2 catalysts. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2006.08.074] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Weiher N, Beesley AM, Tsapatsaris N, Delannoy L, Louis C, van Bokhoven JA, Schroeder SLM. Activation of Oxygen by Metallic Gold in Au/TiO2 Catalysts. J Am Chem Soc 2007; 129:2240-1. [PMID: 17269772 DOI: 10.1021/ja067316c] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Norbert Weiher
- School of Chemical Engineering and Analytical Science, The University of Manchester, P.O. Box 88, Sackville Street, Manchester, M60 1QD, UK
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Kim J, Samano E, Koel BE. CO Adsorption and Reaction on Clean and Oxygen-Covered Au(211) Surfaces. J Phys Chem B 2006; 110:17512-7. [PMID: 16942092 DOI: 10.1021/jp061685d] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have used primarily temperature-programmed desorption (TPD) and infrared reflection-absorption spectroscopy (IRAS) to investigate CO adsorption on a Au(211) stepped single-crystal surface. The Au(211) surface can be described as a step-terrace structure consisting of three-atom-wide terraces of (111) orientation and a monatomic step with a (100) orientation, or 3(111) x (100) in microfacet notation. CO was only weakly adsorbed but was more strongly bound at step sites (12 kcal mol(-1)) than at terrace sites (6.5-9 kcal mol(-1)). The sticking coefficient of CO on the Au(211) surface was also higher ( approximately 5x) during occupation of step sites compared to populating terrace sites at higher coverages. The nu(CO) stretching band energy in IRAS spectra indicated that CO was adsorbed at atop sites at all coverages and conditions. A small red shift of nu(CO) from 2126 to 2112 cm(-1) occurred with increasing CO coverage on the surface. We conclude that the presence of these particular step sites at the Au(211) surface imparts stronger CO bonding and a higher reactivity than on the flat Au(111) surface, but these changes are not remarkable compared to chemistry on other more reactive crystal planes or other stepped Au surfaces. Thus, it is unlikely that the presence or absence of this particular crystal plane alone at the surface of supported Au nanoparticles has much to do with the remarkable properties of highly active Au catalysts.
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Affiliation(s)
- Jooho Kim
- Department of Chemistry, Lehigh University, Bethlehem, Pennsylvania 18015-3172, USA
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Frey K, Beck A, Pető G, Molnár G, Geszti O, Guczi L. Activity of TiO2 overlayer deposited on Au/SiO2/Si(1 0 0) model system. CATAL COMMUN 2006. [DOI: 10.1016/j.catcom.2005.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Wolfe RL, Murray RW. Analytical Evidence for the Monolayer-Protected Cluster Au225[(S(CH2)5CH3)]75. Anal Chem 2006; 78:1167-73. [PMID: 16478108 DOI: 10.1021/ac051533z] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Brust synthesis of thiolate-protected gold clusters has been modified to produce identifiable proportions of a hexanethiolate-protected Au225 core nanoparticle that display quantized double layer charging voltammetry consistent with a Au225 core dimension. Transmission electron microscopy (TEM) and thermogravimetric results indicate an average nanoparticle formula of Au225[(S(CH2)5CH3)]75. A simulated pulse voltammogram that accounts for the TEM nanoparticle dispersity matches reasonably well with that of the polydisperse synthetic sample containing the Au225 component. In confirmation of the size determination, an HPLC analysis using ratiometric absorbance and electrochemical detectors gives a core radius of 1.0 nm for the Au225 nanoparticle.
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Affiliation(s)
- Rebecca L Wolfe
- Kenan Laboratories of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, USA
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Peterson G, Li C. Heat and Mass Transfer in Fluids with Nanoparticle Suspensions. ADVANCES IN HEAT TRANSFER 2006. [DOI: 10.1016/s0065-2717(06)39003-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Affiliation(s)
- Hsin-Yu Lin
- Department of Chemical and Materials Engineering, Nanocatalysis Research Center, National Central University, Chung-Li 32054, Taiwan
| | - Yu-Wen Chen
- Department of Chemical and Materials Engineering, Nanocatalysis Research Center, National Central University, Chung-Li 32054, Taiwan
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Fu L, Wu NQ, Yang JH, Qu F, Johnson DL, Kung MC, Kung HH, Dravid VP. Direct Evidence of Oxidized Gold on Supported Gold Catalysts. J Phys Chem B 2005; 109:3704-6. [PMID: 16851411 DOI: 10.1021/jp045117e] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Supported gold catalysts have drawn worldwide interest due to the novel properties and potential applications in industries. However, the origin of the catalytic activity in gold nanoparticles is still not well understood. In this study, time-of-flight secondary ion mass spectroscopy (TOF-SIMS) has been applied to investigate the nature of gold in Au (1.3 wt %)/gamma-Al2O3 and Au (2.8 wt %)/TiO2 catalysts prepared by the deposition-precipitation method. The SIMS spectrum of the supported gold catalysts presented AuO-, AuO2-, and AuOH- ion clusters. These measurements show direct evidence for oxidized gold on supported gold catalysts and may be helpful to gaining better understanding of the origin of the catalytic activity.
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Daniel MC, Astruc D. Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology. Chem Rev 2004; 104:293-346. [PMID: 14719978 DOI: 10.1021/cr030698+] [Citation(s) in RCA: 7393] [Impact Index Per Article: 369.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marie-Christine Daniel
- Molecular Nanosciences and Catalysis Group, LCOO, UMR CNRS No. 5802, Université Bordeaux I, 33405 Talence Cedex, France
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Daniel MC, Astruc D. Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology. Chem Rev 2004. [PMID: 14719978 DOI: 10.1021/cr030698%2b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Affiliation(s)
- Marie-Christine Daniel
- Molecular Nanosciences and Catalysis Group, LCOO, UMR CNRS No. 5802, Université Bordeaux I, 33405 Talence Cedex, France
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Schimpf S, Gaube J, Claus P. Selective Hydrogenation of Multiple Unsaturated Compounds. BASIC PRINCIPLES IN APPLIED CATALYSIS 2004. [DOI: 10.1007/978-3-662-05981-4_3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Valence band and catalytic activity of Au nanoparticles in Fe2O3/SiO2/Si(100) environment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2003. [DOI: 10.1016/j.msec.2003.09.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Guczi L, Petö G, Beck A, Frey K, Geszti O, Molnár G, Daróczi C. Gold nanoparticles deposited on SiO2/Si100: correlation between size, electron structure, and activity in CO oxidation. J Am Chem Soc 2003; 125:4332-7. [PMID: 12670256 DOI: 10.1021/ja0213928] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanosize gold particles were prepared by Ar(+) ion implantation of 10-nm thick gold film deposited onto a SiO(2)/Si(100) wafer possessing no catalytic activity in the CO oxidation. Along with size reduction the valence band of the gold particles and the actual size were determined by ultraviolet- and X-ray photoelectron spectroscopy (UPS, XPS) and by transmission electron microscopy (TEM) as well as atomic force microscopy (AFM), respectively. The catalytic activity was determined in the CO oxidation. Energy distribution of the photoelectrons excited from 5d valence band of gold was strongly affected by Ar(+) implantation. This variation was interpreted by the redistribution of the valence band density of states (DOS). The intrinsic catalytic activity of the gold particles increased with decreasing size. When an Au/FeO(x) interface was created by FeO(x) deposition on large gold nanoparticles, a significant increase in the rate of the CO oxidation was observed. These data can be regarded as an experimental verification of the correlation between the catalytic activity and valence band density of states of gold.
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Affiliation(s)
- László Guczi
- Institute of Isotopes and Surface Chemistry, Chemical Research Center, Hungarian Academy of Sciences, Department of Surface Chemistry and Catalysis, Konkoly Th. M. út 29/33, H-1525 Budapest, Hungary.
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Solymosi F, Bánsági T, Süli Zakar T. Surface interaction and reaction of NO + CO on a supported Au catalyst. Phys Chem Chem Phys 2003. [DOI: 10.1039/b305427f] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sau TK, Pal A, Pal T. Size Regime Dependent Catalysis by Gold Nanoparticles for the Reduction of Eosin. J Phys Chem B 2001. [DOI: 10.1021/jp011420t] [Citation(s) in RCA: 215] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tapan K. Sau
- Chemistry Department, Panjab University, Chandigarh 160014, India, and Civil Engineering Department and Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Anjali Pal
- Chemistry Department, Panjab University, Chandigarh 160014, India, and Civil Engineering Department and Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
| | - Tarasankar Pal
- Chemistry Department, Panjab University, Chandigarh 160014, India, and Civil Engineering Department and Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India
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