1
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Henckel DA, Lenz O, Cossairt BM. Effect of Ligand Coverage on Hydrogen Evolution Catalyzed by Colloidal WSe2. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00074] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Danielle A. Henckel
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Olivia Lenz
- Materials Science & Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Brandi M. Cossairt
- Department
of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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2
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Melting Properties and Structural Evolution of (Agx-Pd1x)256 Bimetallic Nanoclusters Supported on SWCNT: A Molecular Dynamics Simulation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.12.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Yousif AM. Synthesis of chemically modified macroreticular resins for the preparation of gold nanoparticles via sorption from aqueous gold solution, and the application of these nanoparticles in catalytic remediation. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-0033-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Dykeman RR, Yuan Y, Yan N, Asakura H, Teramura K, Tanaka T, Dyson PJ. Rational Design of a Molecular Nanocatalyst-Stabilizer that Enhances both Catalytic Activity and Nanoparticle Stability. ChemCatChem 2012. [DOI: 10.1002/cctc.201200552] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Yan X, Li Q, Li LS. Formation and Stabilization of Palladium Nanoparticles on Colloidal Graphene Quantum Dots. J Am Chem Soc 2012; 134:16095-8. [DOI: 10.1021/ja303730p] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Xin Yan
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
| | - Qiqi Li
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
| | - Liang-shi Li
- Department
of Chemistry, Indiana University, Bloomington,
Indiana 47405, United States
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6
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Crespo-Quesada M, Cárdenas-Lizana F, Dessimoz AL, Kiwi-Minsker L. Modern Trends in Catalyst and Process Design for Alkyne Hydrogenations. ACS Catal 2012. [DOI: 10.1021/cs300284r] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Micaela Crespo-Quesada
- Group of Catalytic Reaction
Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Fernando Cárdenas-Lizana
- Group of Catalytic Reaction
Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Anne-Laure Dessimoz
- Group of Catalytic Reaction
Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lioubov Kiwi-Minsker
- Group of Catalytic Reaction
Engineering, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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7
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Gonte RR, Balasubramanian K. Chemically modified polymer beads for sorption of gold from waste gold solution. JOURNAL OF HAZARDOUS MATERIALS 2012; 217-218:447-451. [PMID: 22472427 DOI: 10.1016/j.jhazmat.2012.03.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 03/05/2012] [Accepted: 03/06/2012] [Indexed: 05/31/2023]
Abstract
A simple method to convert gold from waste gold solutions used in chemical laboratories and chemical industries into metallic gold nano particles using styrene maleic acid copolymer beads has been approached. The styrene maleic acid copolymer beads with an average bead diameter 400-600 microns, exhibiting exceptionally high rough surface was used as a polymer matrix for the reducing gold from aqueous solution to metallic nano gold. Uptake of gold ions from aqueous waste gold solution was attempted in a batch process. Conversion of gold to metallic nano gold was achieved without the use of any external reducing agents. The metallic nano gold particles could be embedded into polymer matrix within 2h. The beads exhibited high temperature resistance and could sustain upto 400°C.
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Affiliation(s)
- Renuka R Gonte
- Department of Applied Chemistry, Defence Institute of Advanced Technology, Girinagar, Pune, India
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8
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Snelders DJM, Yan N, Gan W, Laurenczy G, Dyson PJ. Tuning the Chemoselectivity of Rh Nanoparticle Catalysts by Site-Selective Poisoning with Phosphine Ligands: The Hydrogenation of Functionalized Aromatic Compounds. ACS Catal 2012. [DOI: 10.1021/cs200575r] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dennis J. M. Snelders
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ning Yan
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Weijia Gan
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Gabor Laurenczy
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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9
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Crespo-Quesada M, Dykeman RR, Laurenczy G, Dyson PJ, Kiwi-Minsker L. Supported nitrogen-modified Pd nanoparticles for the selective hydrogenation of 1-hexyne. J Catal 2011. [DOI: 10.1016/j.jcat.2011.01.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Maye MM, Luo J, Chan WB, Han L, Kariuki N, Naslund HR, Engelhard MH, Lin Y, Sze R, Zhong CJ. Characterizations of Core-Shell Nanoparticle Catalysts for Methanol Electrooxidation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-756-ff6.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThis paper describes the results of an investigation of the structure and composition of core-shell gold and alloy nanoparticles as catalytically active nanomaterials for potential fuel cell catalysis. Centered on the electrocatalytic methanol oxidation, we show three sets of results based on electrochemical, surface, and composition characterizations. First, electrochemical studies have revealed that the nanostructured catalysts are active towards the electrooxidation of methanol and carbon monoxide. Second, X-ray photoelectron spectroscopy (XPS) data have shown that the organic encapsulating shells can be effectively removed electrochemically or thermally, which involves the formation of oxides on the nanocrystals. Thirdly, direct current plasma - atomic emission spectrometry (DCP-AES) has revealed insights for the correlation of the composition of alloy nanoparticles with the catalytic activities. Implications of these results to the design of nanostructured catalysts will also be discussed.
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11
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Dykeman RR, Yan N, Scopelliti R, Dyson PJ. Enhanced Rate of Arene Hydrogenation with Imidazolium Functionalized Bipyridine Stabilized Rhodium Nanoparticle Catalysts. Inorg Chem 2011; 50:717-9. [DOI: 10.1021/ic102041q] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryan R. Dykeman
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Ning Yan
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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12
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Hori J, Murata K, Sugai T, Shinohara H, Noyori R, Arai N, Kurono N, Ohkuma T. Highly Active and Selective Semihydrogenation of Alkynes with the Palladium Nanoparticles-Tetrabutylammonium Borohydride Catalyst System. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900721] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shmidt FK, Belykh LB, Skripov NI, Belonogova LN, Umanets VA, Rokhin AV. Nanosized hydrogenation catalyst based on palladium bisacetylacetonate and phosphine: Formation, the origin of activity, and properties. KINETICS AND CATALYSIS 2007. [DOI: 10.1134/s0023158407050072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Controlled synthesis of PDDA stabilized Au–Pd bimetallic nanostructures and their activity in hydrogenation of acetylene. Top Catal 2007. [DOI: 10.1007/s11244-007-0322-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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17
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Norimatsu FY, Mizokoshi Y, Mori K, Mizugaki T, Ebitani K, Kaneda K. Shape- and Size-controlled Synthesis of Tetrahedral Pd Nanoparticles Using Tetranuclear Pd Cluster as Precursor. CHEM LETT 2006. [DOI: 10.1246/cl.2006.276] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Burda C, Chen X, Narayanan R, El-Sayed MA. Chemistry and properties of nanocrystals of different shapes. Chem Rev 2005; 105:1025-102. [PMID: 15826010 DOI: 10.1021/cr030063a] [Citation(s) in RCA: 3786] [Impact Index Per Article: 199.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Clemens Burda
- Center for Chemical Dynamics and Nanomaterials Research, Department of Chemistry, Case Western Reserve University-Millis 2258, Cleveland, Ohio 44106, USA.
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19
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Belykh L, Goremyka T, Belonogova L, Schmidt F. Highly active and selective catalysts of hydrogenation based on palladium bis-acetylacetonate and phenylphosphine. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2004.12.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Zhou X, Liu C, Zhang Z, Jiang L, Li J. A novel nanogold multilayer constructed by Langmuir–Blodgett and self-assembly techniques. J Colloid Interface Sci 2005; 284:354-7. [PMID: 15752824 DOI: 10.1016/j.jcis.2004.10.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2004] [Accepted: 10/18/2004] [Indexed: 10/25/2022]
Abstract
A multilayer comprising nanogold particles and organic molecules was constructed by self-assembly of the small organic molecule 1-phenyl-5-mercaptotetrazole onto the octadecylamine-protected nanogold monolayer in the course of transferring the monolayer, layer by layer, from a Langmuir-Blodgett trough to solid substrates. The structure and properties of the constructed multilayer were characterized by TEM images and ATR-IR, XPS, and UV-vis spectra. It is evidenced for the first time that the combination of Langmuir-Blodgett and self-assembly techniques provides a new way to organize functional nanoparticles such as organic-nanogold complexes.
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Affiliation(s)
- Xuehua Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Datun Road Jia 3, Chaoyang District, Beijing 100101, People's Republic of China
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21
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Behrens S, Spittel G. A new palladium nanoparticle catalyst on mesoporous silica prepared from a molecular cluster precursor. Dalton Trans 2005:868-73. [PMID: 15726138 DOI: 10.1039/b415665j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A promising approach to the controlled synthesis of supported nanoparticles involves the use of molecular carbonyl clusters as precursors. Molecular metal clusters consist of a defined number of structurally ordered atoms, and active monodisperse metal particles are formed after dispersing the molecules and removing the ligands. An octanuclear palladium cluster precursor with easily displaceable ligands was used to generate palladium nanoparticles on mesoporous MCM-41. The molecular cluster precursor, [Pd8(CO)8(PMe3)7], was directly adsorbed from solution onto MCM-41, followed by gentle thermolysis which yielded small metal nanoparticles. Compared to MCM-41-based catalysts prepared from palladium salts by conventional methods, this cluster-derived palladium catalyst has shown an efficient activity for liquid-phase hydrogenation of alkenes.
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Affiliation(s)
- Silke Behrens
- Institute for Technical Chemistry, Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe, Germany.
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22
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Kormann HP, Schmid G, Pelzer K, Philippot K, Chaudret B. Gas Phase Catalysis by Metal Nanoparticles in Nanoporous Alumina Membranes. Z Anorg Allg Chem 2004. [DOI: 10.1002/zaac.200400192] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Luo J, Jones VW, Han L, Maye MM, Kariuki NN, Zhong CJ. AFM Probing of Thermal Activation of Molecularly Linked Nanoparticle Assembly. J Phys Chem B 2004. [DOI: 10.1021/jp037446x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jin Luo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
| | - Vivian W. Jones
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
| | - Li Han
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
| | - Mathew M. Maye
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
| | - Nancy N. Kariuki
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
| | - Chuan-Jian Zhong
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, and 3M Corporate Analytical Technology Center, 3M Center, St. Paul, Minnesota 55144-1000
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24
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Luo J, Maye MM, Han L, Kariuki NN, Jones VW, Lin Y, Engelhard MH, Zhong CJ. Spectroscopic characterizations of molecularly linked gold nanoparticle assemblies upon thermal treatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:4254-60. [PMID: 15969425 DOI: 10.1021/la036163t] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The understanding of surface properties of core-shell type nanoparticles is important for exploiting the unique nanostructured catalytic properties. We report herein findings of a spectroscopic investigation of the thermal treatment of such nanoparticle assemblies. We have studied assemblies of gold nanocrystals of approximately 2 nm core sizes that are capped by alkanethiolate shells and are assembled by covalent or hydrogen-bonding linkages on a substrate as a model system. The structural evolution of the nanoparticle assemblies treated at different temperatures was probed by several spectroscopic techniques, including UV-visible, Fourier transform infrared (FTIR), and X-ray photoelectron spectroscopy (XPS). The results show that the capping/linking shell molecules can be effectively removed to produce controllable surface and optical properties. The data further revealed that the thermally induced evolution of the surface plasmon resonance property of gold nanoparticles is dependent on the chemical nature of the linker molecule. The spectral evolution is discussed in terms of changes in particle size, interparticle distance, and dielectric medium properties, which has important implications for controlled preparation and thermal processing of core-shell nanostructured metal catalysts.
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Affiliation(s)
- Jin Luo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, USA
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25
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Luo J, Jones VW, Maye MM, Han L, Kariuki NN, Zhong CJ. Thermal activation of molecularly-wired gold nanoparticles on a substrate as catalyst. J Am Chem Soc 2002; 124:13988-9. [PMID: 12440885 DOI: 10.1021/ja028285y] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The ability to prepare nanostructured metal catalysts requires the ability to control size and interparticle spatial and surface access properties. In this work, we report novel findings of an atomic force microscopic investigation of a controlled thermal activation strategy of gold catalysts nanostructured via molecular wiring or linking on a substrate surface. Gold nanocrystals of approximately 2 nm diameter capped by decanethiolate and wired by 1,9-nonanedithiolate on mica substrates were studied as a model system. By manipulating the activation temperature (200-250 degrees C), the capping/wiring molecules can be removed to produce controllable particle size and interparticle spatial morphology. The electrocatalytic activity of the activated nanostructures toward methanol oxidation, which is of fundamental importance to fuel cell catalysis, has been demonstrated. The novelty of the findings is the viability of a thermal activation strategy of core-shell nanostructured catalysts based on molecularly predefined interparticle spatial properties on a substrate, which upon further investigation may form the basis for spatially controllable nanostructured catalysts.
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Affiliation(s)
- Jin Luo
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
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Roucoux A, Schulz J, Patin H. Reduced transition metal colloids: a novel family of reusable catalysts? Chem Rev 2002; 102:3757-78. [PMID: 12371901 DOI: 10.1021/cr010350j] [Citation(s) in RCA: 1148] [Impact Index Per Article: 52.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Alain Roucoux
- Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6052 "Synthèses et Activations de Biomolécules", Institut de Chimie de Rennes, Avenue du Gal Leclerc - 35700 Rennes, France.
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Grüter UM, Hitzke M, Kresimon J, Hirner AV. Derivatization of organometal(loid) species by sodium borohydride problems and solutions. J Chromatogr A 2001; 938:225-36. [PMID: 11771841 DOI: 10.1016/s0021-9673(01)01342-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Like other derivatization techniques, hydride generation is a chemical reaction that produces side-reactions leading to analytical problems. Demethylation of dimethylarsinic acid was observed to be dependent upon the pH level of the hydride generation reaction mixture. If the reaction mixture was acidic, then in addition to (CH3)2AsH, the monomethyl arsenic hydride [(CH3)AsH2] could be detected. Demethylation and also the formation of an unidentified arsenic species were noted when trimethyl arsonic oxide was used as derivatization educt. All of these effects depend on the pH level of the hydride generation mixture. We observed significant levels of organometal(loid) species of elements such as Ge, As, Sn, Sb, Hg and Bi in blank hydride generation mixtures. The organometal(loid) contamination was irreproducible even during I day using a single solution of sodium borohydride in deionized water. We concluded that the organometal(loid) contamination arises directly from the derivatization agent, sodium borohydride, itself. Use of helium purging and various adsorptive materials to decontaminate the sodium borohydride solution prior to analysis did not result in a significant decrease in organometal(loid) contamination levels. Use of a palladium-cluster stabilised with 1,10-phenanthrolin as alternative hydride generation derivatization agent was not found to be suitable, since reaction yields were poor and transmethylation reactions were noted.
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Affiliation(s)
- U M Grüter
- Institute of Environmental Analytical Chemistry, University of Essen, Germany
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Yu W, Liu H, An X, Ma X, Liu Z, Qiang L. Modification of metal cations to the supported metal colloid catalysts. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(99)00130-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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31
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Liu M, Yu W, Liu H, Zheng J. Preparation and Characterization of Polymer-Stabilized Ruthenium-Platinum and Ruthenium-Palladium Bimetallic Colloids and Their Catalytic Properties for Hydrogenation of o-Chloronitrobenzene. J Colloid Interface Sci 1999; 214:231-237. [PMID: 10339363 DOI: 10.1006/jcis.1999.6186] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Colloidal dispersions of poly(N-vinyl-2-pyrrolidone) (PVP)-stabilized ruthenium-platinum and ruthenium-palladium bimetallic colloids were prepared by NaBH4 reduction of the corresponding mixed-metal salts at room temperature and characterized by TEM, XPS, and XRD. The resulting bimetallic colloids were used as catalysts for the selective hydrogenation of o-chloronitrobenzene (o-CNB) in methanol at 303 K under 0.1 MPa of hydrogen. It was observed that the catalytic performance of PVP-stabilized ruthenium-platinum colloids (PVP-Ru/Pt) and ruthenium-palladium colloids (PVP-Ru/Pd) was dependent on their compositions and could be remarkably affected by some added metal cations. In the presence of cobalt ion, nearly 100% selectivity to o-chloroaniline (o-CAN) was achieved over PVP-Ru/Pt colloids at 100% conversion of o-CNB, with an activity two orders of magnitude higher than that of monometallic PVP-Ru colloid. Copyright 1999 Academic Press.
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Affiliation(s)
- M Liu
- Polymer Chemistry Laboratory, Chinese Academy of Sciences, Beijing, 100080, People's Republic of China
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32
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Yu W, Liu M, Liu H, An X, Liu Z, Ma X. Immobilization of polymer-stabilized metal colloids by a modified coordination capture: preparation of supported metal colloids with singular catalytic properties. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s1381-1169(98)00282-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kaneda K, Fujie Y, Ebitani K. Catalysis of giant palladium cluster complexes. Highly selective oxidations of primary allylic alcohols to α,β-unsaturated aldehydes in the presence of molecular oxygen. Tetrahedron Lett 1997. [DOI: 10.1016/s0040-4039(97)10411-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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35
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Aiken JD, Lin Y, Finke RG. A perspective on nanocluster catalysis: polyoxoanion and (n-C4H9)4N+ stabilized Ir(0)∼300 nanocluster ‘soluble heterogeneous catalysts’. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s1381-1169(96)00302-0] [Citation(s) in RCA: 122] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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36
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Schmid G, West H, Malm JO, Bovin JO, Grenthe C. Catalytic Properties of Layered Gold–Palladium Colloids. Chemistry 1996. [DOI: 10.1002/chem.19960020910] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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