1
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Kim J, Pfänder N, Prieto G. Recycling of CO 2 by Hydrogenation of Carbonate Derivatives to Methanol: Tuning Copper-Oxide Promotion Effects in Supported Catalysts. CHEMSUSCHEM 2020; 13:2043-2052. [PMID: 32061179 PMCID: PMC7216934 DOI: 10.1002/cssc.202000166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Indexed: 06/10/2023]
Abstract
The selective hydrogenation of organic carbonates to methanol is a relevant transformation to realize flexible processes for the recycling of waste CO2 with renewable H2 mediated by condensed carbon dioxide surrogates. Oxide-supported copper nanoparticles are promising solid catalysts for this selective hydrogenation. However, essential for their optimization is to rationalize the prominent impact of the oxide support on performance. Herein, the role of Lewis acid centers, exposed on the oxide support at the periphery of the Cu nanoparticles, was systematically assessed. For the hydrogenation of propylene carbonate, as a model cyclic carbonate, the conversion rate, the apparent activation energy, and the selectivity to methanol correlate with the Lewis acidity of the coordinatively unsaturated cationic sites exposed on the oxide support. Lewis sites of markedly low and high electron-withdrawing character promote unselective decarbonylation and decarboxylation reaction pathways, respectively. Supports exposing Lewis sites of intermediate acidity maximize the selectivity to methanol while inhibiting acid-catalyzed secondary reactions of the propanediol product, and thus enable its recovery in cyclic processes of CO2 hydrogenation mediated by condensed carbonate derivatives. These findings help rationalize metal-support promotion effects that determine the performance of supported metal nanoparticles in this and other selective hydrogenation reactions of significance in the context of sustainable chemistry.
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Affiliation(s)
- Jonglack Kim
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Norbert Pfänder
- Max-Planck-Institut für Chemische EnergiekonversionStiftstrasse 34–3645470Mülheim an der RuhrGermany
| | - Gonzalo Prieto
- Heterogeneous CatalysisMax-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
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2
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Gentzen M, Doronkin DE, Sheppard TL, Zimina A, Li H, Jelic J, Studt F, Grunwaldt J, Sauer J, Behrens S. Supported Intermetallic PdZn Nanoparticles as Bifunctional Catalysts for the Direct Synthesis of Dimethyl Ether from CO‐Rich Synthesis Gas. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906256] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Manuel Gentzen
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Dmitry E. Doronkin
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 20 76131 Karlsruhe Germany
| | - Thomas L. Sheppard
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 20 76131 Karlsruhe Germany
| | - Anna Zimina
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 20 76131 Karlsruhe Germany
| | - Haisheng Li
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- School of Physics and Engineering Henan University of Science and Technology 471023 Luoyang, Henan Province P. R. China
| | - Jelena Jelic
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 20 76131 Karlsruhe Germany
| | - Jan‐Dierk Grunwaldt
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 20 76131 Karlsruhe Germany
| | - Jörg Sauer
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Silke Behrens
- Institute of Catalysis Research and Technology Karlsruhe Institute of Technology (KIT) Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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3
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Gentzen M, Doronkin DE, Sheppard TL, Zimina A, Li H, Jelic J, Studt F, Grunwaldt JD, Sauer J, Behrens S. Supported Intermetallic PdZn Nanoparticles as Bifunctional Catalysts for the Direct Synthesis of Dimethyl Ether from CO-Rich Synthesis Gas. Angew Chem Int Ed Engl 2019; 58:15655-15659. [PMID: 31393656 PMCID: PMC6856832 DOI: 10.1002/anie.201906256] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/23/2019] [Indexed: 11/08/2022]
Abstract
The single-step syngas-to-dimethyl ether (STD) process entails economic and technical advantages over the current industrial two-step process. Pd/ZnO-based catalysts have recently emerged as interesting alternatives to currently used Cu/ZnO/Al2 O3 catalysts, but the nature of the active site(s), the reaction mechanism, and the role of Pd and ZnO in the solid catalyst are not well established. Now, Zn-stabilized Pd colloids with a size of 2 nm served as the key building blocks for the methanol active component in bifunctional Pd/ZnO-γ-Al2 O3 catalysts. The catalysts were characterized by combining high-pressure operando X-ray absorption spectroscopy and DFT calculations. The enhanced stability, longevity, and high dimethyl ether selectivity observed makes Pd/ZnO-γ-Al2 O3 an effective alternative system for the STD process compared to Cu/ZnO/γ-Al2 O3 .
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Affiliation(s)
- Manuel Gentzen
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Dmitry E Doronkin
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Thomas L Sheppard
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Anna Zimina
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Haisheng Li
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,School of Physics and Engineering, Henan University of Science and Technology, 471023, Luoyang, Henan Province, P. R. China
| | - Jelena Jelic
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.,Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Jörg Sauer
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Silke Behrens
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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4
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Stepacheva AA, Markova ME, Gavrilenko AV, Sidorov AI, Matveeva VG, Sulman MG, Sulman EM. Synthesis‐Gas Absorption under Real Process Conditions: Thermodynamic Aspects. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201800596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Antonina A. Stepacheva
- Tver State Technical UniversityDepartment of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
| | - Mariia E. Markova
- Tver State Technical UniversityDepartment of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
- Tver State UniversityRegional Technology Center Zhelyabova str., 33 170100 Tver Russia
| | - Alexandra V. Gavrilenko
- Tver State Technical UniversityDepartment of Standardization Certification and Quality Management A. Nikitin str., 22 170026 Tver Russia
| | - Alexander I. Sidorov
- Tver State Technical UniversityDepartment of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
| | - Valentina G. Matveeva
- Tver State Technical UniversityDepartment of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
- Tver State UniversityRegional Technology Center Zhelyabova str., 33 170100 Tver Russia
| | - Mikhail G. Sulman
- Tver State Technical UniversityDepartment of Standardization Certification and Quality Management A. Nikitin str., 22 170026 Tver Russia
| | - Esther M. Sulman
- Tver State Technical UniversityDepartment of Biotechnology and Chemistry A. Nikitin str., 22 170026 Tver Russia
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5
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Pike SD, White ER, Regoutz A, Sammy N, Payne DJ, Williams CK, Shaffer MSP. Reversible Redox Cycling of Well-Defined, Ultrasmall Cu/Cu 2O Nanoparticles. ACS NANO 2017; 11:2714-2723. [PMID: 28286946 DOI: 10.1021/acsnano.6b07694] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Exceptionally small and well-defined copper (Cu) and cuprite (Cu2O) nanoparticles (NPs) are synthesized by the reaction of mesitylcopper(I) with either H2 or air, respectively. In the presence of substoichiometric quantities of ligands, namely, stearic or di(octyl)phosphinic acid (0.1-0.2 equiv vs Cu), ultrasmall nanoparticles are prepared with diameters as low as ∼2 nm, soluble in a range of solvents. The solutions of Cu NPs undergo quantitative oxidation, on exposure to air, to form Cu2O NPs. The Cu2O NPs can be reduced back to Cu(0) NPs using accessible temperatures and low pressures of hydrogen (135 °C, 3 bar H2). This striking reversible redox cycling of the discrete, solubilized Cu/Cu(I) colloids was successfully repeated over 10 cycles, representing 19 separate reactions. The ligands influence the evolution of both composition and size of the nanoparticles, during synthesis and redox cycling, as explored in detail using vacuum-transfer aberration-corrected transmission electron microscopy, X-ray photoelectron spectroscopy, and visible spectroscopy.
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Affiliation(s)
- Sebastian D Pike
- Department of Chemistry, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
| | - Edward R White
- Department of Chemistry, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
| | - Anna Regoutz
- Department of Materials, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
| | - Nicholas Sammy
- Department of Chemistry, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
| | - David J Payne
- Department of Materials, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
| | - Charlotte K Williams
- Department of Chemistry, Oxford University, Chemistry Research Laboratory , 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Milo S P Shaffer
- Department of Chemistry, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
- Department of Materials, Imperial College London , Imperial College Road, London SW7 2AZ, U.K
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6
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García-Trenco A, White ER, Regoutz A, Payne DJ, Shaffer MSP, Williams CK. Pd2Ga-Based Colloids as Highly Active Catalysts for the Hydrogenation of CO2 to Methanol. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02928] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrés García-Trenco
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, U.K. OX1 3TA
| | | | | | | | | | - Charlotte K. Williams
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, U.K. OX1 3TA
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7
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Pike SD, García-Trenco A, White ER, Leung AHM, Weiner J, Shaffer MSP, Williams CK. Colloidal Cu/ZnO catalysts for the hydrogenation of carbon dioxide to methanol: investigating catalyst preparation and ligand effects. Catal Sci Technol 2017. [DOI: 10.1039/c7cy01191a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This paper reports on the influences of the catalyst preparation method and ligand effects for a series of highly active Cu/ZnO colloidal catalysts for the hydrogenation of CO2 to methanol.
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Affiliation(s)
| | - Andrés García-Trenco
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | | | - Alice H. M. Leung
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
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8
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9
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Zeng D, Gong P, Chen Y, Zhang Q, Xie Q, Peng DL. Colloidal synthesis of Cu-ZnO and Cu@CuNi-ZnO hybrid nanocrystals with controlled morphologies and multifunctional properties. NANOSCALE 2016; 8:11602-10. [PMID: 27216552 DOI: 10.1039/c6nr02055k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Metal-semiconductor hybrid nanocrystals have received extensive attention owing to their multiple functionalities which can find wide technological applications. The utilization of low-cost non-noble metals to construct novel metal-semiconductor hybrid nanocrystals is important and meaningful for their large-scale applications. In this study, a facile solution approach is developed for the synthesis of Cu-ZnO hybrid nanocrystals with well-controlled morphologies, including nanomultipods, core-shell nanoparticles, nanopyramids and core-shell nanowires. In the synthetic strategy, Cu nanocrystals formed in situ serve as seeds for the heterogeneous nucleation and growth of ZnO, and it eventually forms various Cu-ZnO hetero-nanostructures under different reaction conditions. These hybrid nanocrystals possess well-defined and stable heterostructure junctions. The ultraviolet-visible-near infrared spectra reveal morphology-dependent surface plasmon resonance absorption of Cu and the band gap absorption of ZnO. Furthermore, we construct a novel Cu@CuNi-ZnO ternary hetero-nanostructure by incorporating the magnetic metal Ni into the pre-synthesized colloidal Cu nanocrystals. Such hybrid nanocrystals possess a magnetic Cu-Ni intermediate layer between the ZnO shell and the Cu core, and exhibit ferromagnetic/superparamagnetic properties which expand their functionalities. Finally, enhanced photocatalytic activities are observed in the as-prepared non-noble metal-ZnO hybrid nanocrystals. This study not only provides an economical way to prepare high-quality morphology-controlled Cu-ZnO hybrid nanocrystals for potential applications in the fields of photocatalysis and photovoltaic devices, but also opens up new opportunities in designing ternary non-noble metal-semiconductor hybrid nanocrystals with multifunctionalities.
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Affiliation(s)
- Deqian Zeng
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
| | - Pingyun Gong
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
| | - Yuanzhi Chen
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
| | - Qinfu Zhang
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
| | - Qingshui Xie
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
| | - Dong-Liang Peng
- Department of Materials Science and Engineering, Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, 361005, P.R. China.
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10
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Zhang X, Ptasinska S. High‐Pressure‐Induced Pseudo‐oxidation of Copper Surfaces by Carbon Monoxide. ChemCatChem 2016. [DOI: 10.1002/cctc.201600046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xueqiang Zhang
- Radiation Laboratory and Department of Chemistry and Biochemistry University of Notre Dame Notre Dame IN 46556 USA
| | - Sylwia Ptasinska
- Radiation Laboratory and Department of Physics University of Notre Dame Notre Dame IN 46556 USA
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11
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Nale DB, Rath D, Parida KM, Gajengi A, Bhanage BM. Amine modified mesoporous Al2O3@MCM-41: an efficient, synergetic and recyclable catalyst for the formylation of amines using carbon dioxide and DMAB under mild reaction conditions. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02277k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel amine modified meso Al2O3@MCM-41 catalyst was investigated for the synthesis of formamides from 1°/2° aliphatic as well as aromatic amines with CO2, using DMAB.
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Affiliation(s)
- Deepak B. Nale
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400 019
- India
| | - Dharitri Rath
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751 030
| | - K. M. Parida
- Department of Chemistry
- Centre for Nano Science and Nano Technology
- Institute of Technical Education & Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751 030
| | - Aravind Gajengi
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai-400 019
- India
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12
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Gentzen M, Habicht W, Doronkin DE, Grunwaldt JD, Sauer J, Behrens S. Bifunctional hybrid catalysts derived from Cu/Zn-based nanoparticles for single-step dimethyl ether synthesis. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01043h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Model kit for bifunctional catalysts: colloidal Cu/Zn-based nanoparticles were synthesized and used as building blocks in syngas to dimethyl ether (STD) catalysts.
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Affiliation(s)
- M. Gentzen
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - W. Habicht
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - D. E. Doronkin
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
| | - J.-D. Grunwaldt
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
| | - J. Sauer
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
| | - S. Behrens
- Institute of Catalysis Research and Technology
- Karlsruhe Institute of Technology (KIT)
- Germany
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13
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García-Trenco A, White ER, Shaffer MSP, Williams CK. A one-step Cu/ZnO quasi-homogeneous catalyst for DME production from syn-gas. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01994j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Colloidal Cu/ZnO nanoparticles combine with γ-Al2O3 to form promising hybrid catalysts for the direct synthesis of dimethyl ether (DME) in liquid phase, showing high activity, selectivity and stability.
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Affiliation(s)
| | - E. R. White
- Department of Chemistry
- Imperial College London
- London
- UK
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14
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Martínez-Suárez L, Siemer N, Frenzel J, Marx D. Reaction Network of Methanol Synthesis over Cu/ZnO Nanocatalysts. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00442] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis Martínez-Suárez
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Niklas Siemer
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Johannes Frenzel
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
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15
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Brown NJ, García-Trenco A, Weiner J, White ER, Allinson M, Chen Y, Wells PP, Gibson EK, Hellgardt K, Shaffer MSP, Williams CK. From Organometallic Zinc and Copper Complexes to Highly Active Colloidal Catalysts for the Conversion of CO2 to Methanol. ACS Catal 2015. [DOI: 10.1021/cs502038y] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Neil J. Brown
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Andrés García-Trenco
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Jonathan Weiner
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Edward R. White
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Matthew Allinson
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Yuxin Chen
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Peter P. Wells
- The UK Catalysis
Hub, Research Complex at Harwell, Harwell, Oxon OX11 0FA, United Kingdom
- Kathleen Lonsdale Building,
Department of Chemistry, University College London, Gordon Street, London WC1H 0AJ, United Kingdom
| | - Emma K. Gibson
- The UK Catalysis
Hub, Research Complex at Harwell, Harwell, Oxon OX11 0FA, United Kingdom
- Kathleen Lonsdale Building,
Department of Chemistry, University College London, Gordon Street, London WC1H 0AJ, United Kingdom
| | - Klaus Hellgardt
- Department
of Chemical Engineering, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Milo S. P. Shaffer
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
| | - Charlotte K. Williams
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom
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16
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Prieto G, Schüth F. The Yin and Yang in the Development of Catalytic Processes: Catalysis Research and Reaction Engineering. Angew Chem Int Ed Engl 2015; 54:3222-39. [DOI: 10.1002/anie.201409885] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Indexed: 11/10/2022]
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17
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Prieto G, Schüth F. Das Yin und Yang in der Entwicklung von katalytischen Prozessen: Katalyseforschung und Reaktionstechnik. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409885] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Zhang P, Sui Y, Wang C, Wang Y, Cui G, Wang C, Liu B, Zou B. A one-step green route to synthesize copper nanocrystals and their applications in catalysis and surface enhanced Raman scattering. NANOSCALE 2014; 6:5343-5350. [PMID: 24699872 DOI: 10.1039/c4nr00412d] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A nontoxic, simple, inexpensive, and reproducible strategy, which meets the standard of green chemistry, is introduced for the synthesis of copper nanocrystals (Cu NCs) with olive oil as both reducing agent and capping agent. By changing the reaction parameters, the shape, size and surface structure of the Cu NCs can be well controlled. The obtained Cu nanocubes show excellent catalytic properties for the catalytic reduction of dyes and CO oxidation. Moreover, the prepared Cu nanocubes as substrates exhibit surface enhanced Raman scattering (SERS) activity for 4-mercaptopyridine (4-Mpy). Therefore, this facile route provides a useful platform for the fabrication of Cu NCs which have the potential to replace noble metals for certain applications.
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Affiliation(s)
- Pinhua Zhang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
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Schütte K, Meyer H, Gemel C, Barthel J, Fischer RA, Janiak C. Synthesis of Cu, Zn and Cu/Zn brass alloy nanoparticles from metal amidinate precursors in ionic liquids or propylene carbonate with relevance to methanol synthesis. NANOSCALE 2014; 6:3116-3126. [PMID: 24492885 DOI: 10.1039/c3nr05780a] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Microwave-induced decomposition of the transition metal amidinates {[Me(C(N(i)Pr)2)]Cu}2 (1) and [Me(C(N(i)Pr)2)]2Zn (2) in the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIm][BF4]) or in propylene carbonate (PC) gives copper and zinc nanoparticles which are stable in the absence of capping ligands (surfactants) for more than six weeks. Co-decomposition of 1 and 2 yields the intermetallic nano-brass phases β-CuZn and γ-Cu3Zn depending on the chosen molar ratios of the precursors. Nanoparticles were characterized by high-angle annular dark field-scanning transmission electron microscopy (HAADF-STEM), dynamic light scattering and powder X-ray diffractometry. Microstructure characterizations were complemented by STEM with spatially resolved energy-dispersive X-ray spectrometry and X-ray photoelectron spectroscopy. Synthesis in ILs yields significantly smaller nanoparticles than in PC. β-CuZn alloy nanoparticles are precursors to catalysts for methanol synthesis from the synthesis gas H2/CO/CO2 with a productivity of 10.7 mol(MeOH) (kg(Cu) h)(-1).
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Affiliation(s)
- Kai Schütte
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40204 Düsseldorf, Germany.
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Brown NJ, Harris JE, Yin X, Silverwood I, White AJP, Kazarian SG, Hellgardt K, Shaffer MSP, Williams CK. Mononuclear Phenolate Diamine Zinc Hydride Complexes and Their Reactions With CO 2.. Organometallics 2014; 33:1112-1119. [PMID: 24882918 PMCID: PMC4034080 DOI: 10.1021/om400679n] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Indexed: 11/28/2022]
Abstract
The synthesis, characterization, and zinc coordination chemistry of the three proligands 2-tert-butyl-4-[tert-butyl (1)/methoxy (2)/nitro (3)]-6-{[(2'-dimethylaminoethyl)methylamino]methyl}phenol are described. Each of the ligands was reacted with diethylzinc to yield zinc ethyl complexes 4-6; these complexes were subsequently reacted with phenylsilanol to yield zinc siloxide complexes 7-9. Finally, the zinc siloxide complexes were reacted with phenylsilane to produce the three new zinc hydride complexes 10-12. The new complexes 4-12 have been fully characterized by NMR spectroscopy, mass spectrometry, and elemental analyses. The structures of the zinc hydride complexes have been probed using VT-NMR spectroscopy and X-ray diffraction experiments. These data indicate that the complexes exhibit mononuclear structures at 298 K, both in the solid state and in solution (d8-toluene). At 203 K, the NMR signals broaden, consistent with an equilibrium between the mononuclear and dinuclear bis(μ-hydrido) complexes. All three zinc hydride complexes react rapidly and quantitatively with carbon dioxide, at 298 K and 1 bar of pressure over 20 min, to form the new zinc formate complexes 13-15. The zinc formate complexes have been analyzed by NMR spectroscopy and VT-NMR studies, which reveal a temperature-dependent monomer-dimer equilibrium that is dominated by the mononuclear species at 298 K.
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Affiliation(s)
- Neil J Brown
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Jonathon E Harris
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Xinning Yin
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Ian Silverwood
- Department of Chemical Engineering, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Andrew J P White
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Sergei G Kazarian
- Department of Chemical Engineering, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Klaus Hellgardt
- Department of Chemical Engineering, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Milo S P Shaffer
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
| | - Charlotte K Williams
- Department of Chemistry, Imperial College London , South Kensington, London SW7 2AZ, U.K
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Cui X, Zhang Y, Deng Y, Shi F. Amine formylation via carbon dioxide recycling catalyzed by a simple and efficient heterogeneous palladium catalyst. Chem Commun (Camb) 2014; 50:189-91. [DOI: 10.1039/c3cc46427j] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Silverwood IP, Keyworth CW, Brown NJ, Shaffer MSP, Williams CK, Hellgardt K, Kelsall GH, Kazarian SG. An attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopic study of gas adsorption on colloidal stearate-capped ZnO catalyst substrate. APPLIED SPECTROSCOPY 2014; 68:88-94. [PMID: 24405958 DOI: 10.1366/13-07174] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy has been applied in situ to study gas adsorption on a colloidal stearate-capped zinc oxide (ZnO) surface. Infrared spectra of a colloidal stearate-capped ZnO catalyst substrate were assigned at room temperature using zinc stearate as a reference compound. Heating was shown to create a monodentate species that allowed conformational change to occur, leading to altered binding geometry of the stearate ligands upon cooling. CO2 and H2 adsorption measurements demonstrated that the ligand shell was permeable and did not cover the entire surface, allowing adsorption and reaction with at least some portion of the ZnO surface. It has been demonstrated that stearate ligands did not prevent the usual chemisorption processes involved in catalytic reactions on a model ZnO catalyst system, yet the ligand-support system is dynamic under representative reaction conditions.
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Affiliation(s)
- Ian P Silverwood
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
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Schott V, Oberhofer H, Birkner A, Xu M, Wang Y, Muhler M, Reuter K, Wöll C. Chemische Aktivität von dünnen Oxidschichten: Starke Träger- Wechselwirkungen ergeben eine neue ZnO-Dünnfilmphase. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302315] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Schott V, Oberhofer H, Birkner A, Xu M, Wang Y, Muhler M, Reuter K, Wöll C. Chemical Activity of Thin Oxide Layers: Strong Interactions with the Support Yield a New Thin-Film Phase of ZnO. Angew Chem Int Ed Engl 2013; 52:11925-9. [DOI: 10.1002/anie.201302315] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 06/19/2013] [Indexed: 11/09/2022]
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Guo H, Chen Y, Ping H, Jin J, Peng DL. Facile synthesis of Cu and Cu@Cu-Ni nanocubes and nanowires in hydrophobic solution in the presence of nickel and chloride ions. NANOSCALE 2013; 5:2394-2402. [PMID: 23400550 DOI: 10.1039/c3nr33142c] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A highly shape selective synthesis of Cu and Cu@Cu-Ni nanocubes and nanowires has been developed by modulating the coordination chemistry of transition metal ions with a trioctylphosphine (TOP)-Cl(-) ligand pair in oleylamine under mild organic solvent conditions. The as-prepared nanocubes have a face-centered cubic (fcc) phase and are covered by six {100} facets, whereas the as-prepared nanowires have a multi-twinned structure and grow along the [110] direction. Both the Ni(2+) and Cl(-) ions, along with TOP, play vital roles in determining the final morphology of the as-prepared nanocrystals (NCs). TOP can be used to selectively generate single-crystal seeds at the initial stage, which then grow into nanocubes in the presence of Cl(-) ions, while the absence of TOP leads to the formation of multi-twined crystal seeds that finally develop into nanowires. Moreover, Ni can be incorporated to form a Cu-Ni alloy shell over a Cu core at higher temperatures in a one-pot process, which makes diamagnetic Cu NCs magnetically responsive and has a significant influence on their optical properties.
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Affiliation(s)
- Huizhang Guo
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361005, P. R. China
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Brown NJ, Weiner J, Hellgardt K, Shaffer MSP, Williams CK. Phosphinate stabilised ZnO and Cu colloidal nanocatalysts for CO2 hydrogenation to methanol. Chem Commun (Camb) 2013; 49:11074-6. [DOI: 10.1039/c3cc46203j] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lignier P, Bellabarba R, Tooze RP. Scalable strategies for the synthesis of well-defined copper metal and oxidenanocrystals. Chem Soc Rev 2012; 41:1708-20. [DOI: 10.1039/c1cs15223h] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Sliem MA, Turner S, Heeskens D, Kalidindi SB, Tendeloo GV, Muhler M, Fischer RA. Preparation, microstructure characterization and catalytic performance of Cu/ZnO and ZnO/Cu composite nanoparticles for liquid phase methanol synthesis. Phys Chem Chem Phys 2012; 14:8170-8. [DOI: 10.1039/c2cp40482f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Meunier FC. Mixing Copper Nanoparticles and ZnO Nanocrystals: A Route towards Understanding the Hydrogenation of CO2 to Methanol? Angew Chem Int Ed Engl 2011; 50:4053-4. [DOI: 10.1002/anie.201100011] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Indexed: 11/11/2022]
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30
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Meunier FC. Kupfer-Nanopartikel auf nanokristallinem Zinkoxid: ein Schlüssel zum Mechanismus der CO2-Hydrierung zu Methanol? Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Zhang H, Wu P, Li Y, Liao L, Fang Z, Zhong X. Preparation of Bismuth Oxide Quantum Dots and their Photocatalytic Activity in a Homogeneous System. ChemCatChem 2010. [DOI: 10.1002/cctc.201000090] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sliem MA, Hikov T, Li ZA, Spasova M, Farle M, Schmidt DA, Havenith-Newen M, Fischer RA. Interfacial Cu/ZnO contact by selective photodeposition of copper onto the surface of small ZnO nanoparticles in non-aqueous colloidal solution. Phys Chem Chem Phys 2010; 12:9858-66. [DOI: 10.1039/c003861j] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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