1
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Paterson R, Alharbi AA, Wills C, Dixon C, Šiller L, Chamberlain TW, Griffiths A, Collins SM, Wu K, Simmons MD, Bourne RA, Lovelock KR, Seymour J, Knight JG, Doherty S. Heteroatom modified polymer immobilized ionic liquid stabilized ruthenium nanoparticles: Efficient catalysts for the hydrolytic evolution of hydrogen from sodium borohydride. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Chen Y, Chen Y, Jia J, Yan B. Triclosan detoxification through dechlorination and oxidation via microbial Pd-NPs under aerobic conditions. CHEMOSPHERE 2022; 286:131836. [PMID: 34388436 DOI: 10.1016/j.chemosphere.2021.131836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/29/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
The present study focuses on the successful preparation of microbial palladium nanoparticles (Pd-NPs). The even distribution of Pd in the periplasmic space of B. megaterium Y-4 cells is characterized using a transmission electronic microscopy (TEM) and scanning electron microscope (SEM). X-Ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) revealed the domination of Pd (0) in Pd-NPs. The microbial Pd-NPs were selected to detoxify triclosan (TCS). Liquid chromatography-mass spectrometry (LC-MS) was used to analyze the intermediate products of dechlorination and oxidization. Free radicals quenching and 5,5-dimethyl-1-pyrroline N-oxide (DMPO) capturing experiments confirmed the crucial contribution of atomic H• and O2·- to TCS degradation. Besides, TCS degradation by microbial Pd-NPs could alleviate the cytotoxicity of TCS polluted water. Meanwhile, great circulating utilization of microbial Pd-NPs was obtained in degrading TCS. Corresponding findings in the present study could provide new insight into the role of microbial Pd-NPs in detoxifying pollutants.
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Affiliation(s)
- Yuan Chen
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong, 510405, PR China
| | - Yuancai Chen
- Ministry of Education Key Laboratory of Pollution Control and Ecological Remediation for Industrial Agglomeration Area, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, Guangdong, PR China.
| | - Jianbo Jia
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong, 510405, PR China
| | - Bing Yan
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, Guangdong, 510405, PR China.
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3
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Wang F, Jia Y, Liang J, Han Y, Zhang J, Li X, Li W. Intensifying strategy of ionic liquids for Pd-based catalysts in anthraquinone hydrogenation. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01986d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pd–IL complex catalyst was first employed in anthraquinone hydrogenation. ILs are uniformly dispersed around Pd species, which adjust acidic sites, accomplish charge transfers, stretch CO bond lengths and promote occurrence of desirable reactions.
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Affiliation(s)
- Fuying Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Yiming Jia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Jingyue Liang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - You Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Jinli Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
| | - Xiaoyan Li
- Department of Chemical Engineering, Tianjin Renai College, Tianjin 301636, P. R. China
| | - Wei Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China
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4
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Seitkalieva MM, Samoylenko DE, Lotsman KA, Rodygin KS, Ananikov VP. Metal nanoparticles in ionic liquids: Synthesis and catalytic applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213982] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Knorr M, Schmidt P. Reactivity of Ionic Liquids: Reductive Effect of [C 4 C 1 im]BF 4 to Form Particles of Red Amorphous Selenium and Bi 2 Se 3 from Oxide Precursors. ChemistryOpen 2021; 10:125-140. [PMID: 33410604 PMCID: PMC7874247 DOI: 10.1002/open.202000264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/06/2020] [Indexed: 11/28/2022] Open
Abstract
Temperature-induced change in reactivity of the frequently used ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([C4 C1 im]BF4 ) is presented as a prerequisite for the rational screening of reaction courses in material synthesis. [C4 C1 im]BF4 becomes active with oxidic precursor compounds in reduction reaction at ϑ≥200 °C, even without the addition of an external reducing agent. The reaction mechanism of forming red amorphous selenium from SeO2 is investigated as a model system and can be described similarly to the Riley oxidation. The reactive species but-1-ene, which is formed during the decomposition of [C4 C1 im]BF4 , reacts with SeO2 and form but-3-en-2-one, water, and selenium. Elucidation of the mechanism was achieved by thermoanalytical investigations. The monotropic phase transition of selenium was analyzed by the differential scanning calorimetry. Beyond, the suitability of the single source oxide precursor Bi2 Se3 O9 for the synthesis of Bi2 Se3 particles was confirmed. Identification, characterization of formed solids succeeded by using light microscopy, XRD, SEM, and EDX.
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Affiliation(s)
- Monika Knorr
- Chair of Inorganic ChemistryBrandenburg University of Technology (BTU) Cottbus-Senftenberg Universitätsplatz 101968SenftenbergGermany
| | - Peer Schmidt
- Chair of Inorganic ChemistryBrandenburg University of Technology (BTU) Cottbus-Senftenberg Universitätsplatz 101968SenftenbergGermany
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6
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Weilhard A, Argent SP, Sans V. Efficient carbon dioxide hydrogenation to formic acid with buffering ionic liquids. Nat Commun 2021; 12:231. [PMID: 33431835 PMCID: PMC7801478 DOI: 10.1038/s41467-020-20291-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 11/19/2020] [Indexed: 11/26/2022] Open
Abstract
The efficient transformation of CO2 into chemicals and fuels is a key challenge for the decarbonisation of the synthetic production chain. Formic acid (FA) represents the first product of CO2 hydrogenation and can be a precursor of higher added value products or employed as a hydrogen storage vector. Bases are typically required to overcome thermodynamic barriers in the synthesis of FA, generating waste and requiring post-processing of the formate salts. The employment of buffers can overcome these limitations, but their catalytic performance has so far been modest. Here, we present a methodology utilising IL as buffers to catalytically transform CO2 into FA with very high efficiency and comparable performance to the base-assisted systems. The combination of multifunctional basic ionic liquids and catalyst design enables the synthesis of FA with very high catalytic efficiency in TONs of >8*105 and TOFs > 2.1*104 h−1. Basic ionic liquids provide a buffering effect that enables the efficient synthesis of free formic acid from CO2 hydrogenation. Here, a highly efficient catalytic system that transforms CO2 to formic acid without the need of strong bases is demonstrated, avoiding the formation of formate salts.
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Affiliation(s)
- Andreas Weilhard
- Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Victor Sans
- Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, UK. .,Institute of Advanced Materials (INAM), Universitat Jaume I, 12071, Castellon, Spain.
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7
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Olefin epoxidation with ionic liquid catalysts formed by supramolecular interactions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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Staiger L, Kratky T, Günther S, Tomanek O, Zbořil R, Fischer RW, Fischer RA, Cokoja M. Steric and Electronic Effects of Phosphane Additives on the Catalytic Performance of Colloidal Palladium Nanoparticles in the Semi‐Hydrogenation of Alkynes. ChemCatChem 2020. [DOI: 10.1002/cctc.202001121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lena Staiger
- Chair of Inorganic and Metal-Organic Chemistry Department of Chemistry and Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Straße 1 85747 Garching b. München Germany
| | - Tim Kratky
- Chair of Physical Chemistry with Focus on Catalysis Department of Chemistry and Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Straße 1 85747 Garching b. München Germany
| | - Sebastian Günther
- Chair of Physical Chemistry with Focus on Catalysis Department of Chemistry and Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Straße 1 85747 Garching b. München Germany
| | - Ondrej Tomanek
- Regional Center of Advanced Technologies and Materials RCPTM Šlechtitelů 27 78371 Olomouc Czech Republic
| | - Radek Zbořil
- Regional Center of Advanced Technologies and Materials RCPTM Šlechtitelů 27 78371 Olomouc Czech Republic
| | - Richard W. Fischer
- Clariant Produkte (Deutschland) GmbH Waldheimer Straße 15 83052 Bruckmühl Germany
| | - Roland A. Fischer
- Chair of Inorganic and Metal-Organic Chemistry Department of Chemistry and Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Straße 1 85747 Garching b. München Germany
| | - Mirza Cokoja
- Chair of Inorganic and Metal-Organic Chemistry Department of Chemistry and Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Straße 1 85747 Garching b. München Germany
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9
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Emam HE, Saad NM, Abdallah AE, Ahmed HB. Acacia gum versus pectin in fabrication of catalytically active palladium nanoparticles for dye discoloration. Int J Biol Macromol 2020; 156:829-840. [DOI: 10.1016/j.ijbiomac.2020.04.018] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 04/02/2020] [Accepted: 04/05/2020] [Indexed: 12/20/2022]
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10
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Doherty S, Knight JG, Backhouse T, Summers RJ, Abood E, Simpson W, Paget W, Bourne RA, Chamberlain TW, Stones R, Lovelock KRJ, Seymour JM, Isaacs MA, Hardacre C, Daly H, Rees NH. Highly Selective and Solvent-Dependent Reduction of Nitrobenzene to N-Phenylhydroxylamine, Azoxybenzene, and Aniline Catalyzed by Phosphino-Modified Polymer Immobilized Ionic Liquid-Stabilized AuNPs. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00347] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Simon Doherty
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Julian G. Knight
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Tom Backhouse
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Ryan J. Summers
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Einas Abood
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - William Simpson
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - William Paget
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Richard A. Bourne
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Thomas W. Chamberlain
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Rebecca Stones
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Kevin R. J. Lovelock
- School of Chemistry, Food and Pharmacy, University of Reading, Reading RG6 6AT, U.K
| | - Jake M. Seymour
- School of Chemistry, Food and Pharmacy, University of Reading, Reading RG6 6AT, U.K
| | - Mark A. Isaacs
- EPSRC National Facility for XPS (HarwellXPS),
Research Complex at Harwell (RCaH), Rutherford Appleton
Laboratory, Room G.63, Harwell, Didcot, Oxfordshire OX11 0FA, U.K
| | - Christopher Hardacre
- School of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street Campus, Manchester M13 9PL, U.K
| | - Helen Daly
- School of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street Campus, Manchester M13 9PL, U.K
| | - Nicholas H. Rees
- Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
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11
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Doherty S, Knight JG, Backhouse T, Abood E, Al-shaikh H, Clemmet AR, Ellison JR, Bourne RA, Chamberlain TW, Stones R, Warren NJ, Fairlamb IJS, Lovelock KRJ. Heteroatom Donor-Decorated Polymer-Immobilized Ionic Liquid Stabilized Palladium Nanoparticles: Efficient Catalysts for Room-Temperature Suzuki-Miyaura Cross-Coupling in Aqueous Media. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800561] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Simon Doherty
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Julian G. Knight
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Tom Backhouse
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Einas Abood
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Hind Al-shaikh
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Ashley R. Clemmet
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Jack R. Ellison
- NUCAT, School of Chemistry, Bedson Building; Newcastle University; Newcastle upon Tyne NE1 7RU UK
| | - Richard A. Bourne
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Thomas W. Chamberlain
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Rebecca Stones
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Nicholas J. Warren
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering; University of Leeds; Woodhouse Lane Leeds LS2 9JT UK
| | - Ian J. S. Fairlamb
- Department of Chemistry; University of York; Heslington, York YO10 5DD UK
| | - Kevin R. J. Lovelock
- School of Chemistry, Food and Pharmacy; University of Reading; Reading RG6 6AT UK
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12
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Yang Y, Tang R. Magnetically Recyclable Pd/Fe3O4/g-C3N4 as Efficient Catalyst for the Reduction of Nitrophenol and Suzuki-Miyaura Reaction at Room Temperature. CHEM LETT 2018. [DOI: 10.1246/cl.180007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yingwei Yang
- School of Chemistry and Chemical Engineering, Central South University, Hunan 410083, P. R. China
| | - Ruiren Tang
- School of Chemistry and Chemical Engineering, Central South University, Hunan 410083, P. R. China
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13
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Tang D, Sun X, Zhao D, Zhu J, Zhang W, Xu X, Zhao Z. Nitrogen-Doped Carbon Xerogels Supporting Palladium Nanoparticles for Selective Hydrogenation Reactions: The Role of Pyridine Nitrogen Species. ChemCatChem 2018. [DOI: 10.1002/cctc.201702007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Duihai Tang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
| | - Xue Sun
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
| | - Dan Zhao
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
| | - Junjiang Zhu
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
- Key Laboratory of Catalysis and Materials Science of the, State Ethnic Affairs Commission & Ministry of Education; South-Central University for Nationalities; Wuhan 430074 P.R. China
| | - Wenting Zhang
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
| | - Xuelian Xu
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
| | - Zhen Zhao
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering; Shenyang Normal University; Shenyang 110034 P.R. China
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14
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Yang L, Yang Q, Hu J, Bao Z, Su B, Zhang Z, Ren Q, Xing H. Metal nanoparticles in ionic liquid‐cosolvent biphasic systems as active catalysts for acetylene hydrochlorination. AIChE J 2018. [DOI: 10.1002/aic.16103] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Lifeng Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Qiwei Yang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Jingyi Hu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Zongbi Bao
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Baogen Su
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Zhiguo Zhang
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Qilong Ren
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
| | - Huabin Xing
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027 China
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15
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Doherty S, Knight JG, Backhouse T, Bradford A, Saunders F, Bourne RA, Chamberlain TW, Stones R, Clayton A, Lovelock K. Highly efficient aqueous phase reduction of nitroarenes catalyzed by phosphine-decorated polymer immobilized ionic liquid stabilized PdNPs. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02557b] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Phosphino-decorated polymer immobilised ionic liquid-stabilised PdNPs are highly efficient catalysts for the aqueous phase hydrogenation and transfer hydrogenation of aromatic nitro compounds in batch and continuous flow.
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16
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Ali M, Abarca G, Eberhardt D, Gual A, Bernardi F, Teixeira SR, Dupont J. “Save money” during hydrogenation reactions by exploiting the superior performance of Pd-NPs deposited on carbon black by magnetron sputtering. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Affiliation(s)
- Kun Dong
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiaomin Liu
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Haifeng Dong
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Xiangping Zhang
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Suojiang Zhang
- State Key Laboratory of Multiphase
Complex Systems, Beijing Key Laboratory of Ionic Liquids Clean Process,
Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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18
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Leal B, Aydos GLP, Netz PA, Dupont J. Ru-Catalyzed Estragole Isomerization under Homogeneous and Ionic Liquid Biphasic Conditions. ACS OMEGA 2017; 2:1146-1155. [PMID: 28393133 PMCID: PMC5377274 DOI: 10.1021/acsomega.7b00078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 03/13/2017] [Indexed: 06/07/2023]
Abstract
The isomerization of estragole to trans-anethole is an important reaction and is industrially performed using an excess of NaOH or KOH in ethanol at high temperatures with very low selectivity. Simple Ru-based transition-metal complexes, under homogeneous, ionic liquid (IL)-supported (biphasic) and "solventless" conditions, can be used for this reaction. The selectivity of this reaction is more sensitive to the solvent/support used than the ligands associated with the metal catalyst. Thus, under the optimized reaction conditions, 100% conversion can be achieved in the estragole isomerization, using as little as 4 × 10-3 mol % (40 ppm) of [RuHCl(CO)(PPh3)3] in toluene, reflecting a total turnover number (TON) of 25 000 and turnover frequencies (TOFs) of up to 500 min-1 at 80 °C. Using a dimeric Ru precursor, [RuCl(μ-Cl)(η3:η3-C10H16)]2, in ethanol associated with P(OEt)3, a TON of 10 000 and a TOF of 125 min-1 are obtained with 100% conversion and 99% selectivity. These two Ru catalytic systems can be transposed to biphasic IL systems by using ionic-tagged P-ligands such as 1-(3-(diphenylphosphanyl)propyl)-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide immobilized in 1-(3-hydroxypropyl)-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl) imide with up to 99% selectivity and almost complete estragole conversion. However, the reaction is much slower than that performed under solventless or homogeneous conditions. The use of ionic-tagged ligands significantly reduces the Ru leaching to the organic phase, compared to that in reactions performed under homogeneous conditions, where the catalytic system loses catalytic performance after the second recycling. Detailed kinetic investigations of the reaction catalyzed by [RuHCl(CO)(PPh3)3] indicate that a simplified kinetic model (a monomolecular reversible first-order reaction) is adequate for fitting the homogeneous reaction at 80 °C and under biphasic conditions. However, the kinetics of the reaction are better described if all of the elementary steps are taken into consideration, especially at 40 °C.
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19
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Delgado JA, Benkirane O, Claver C, Curulla-Ferré D, Godard C. Advances in the preparation of highly selective nanocatalysts for the semi-hydrogenation of alkynes using colloidal approaches. Dalton Trans 2017; 46:12381-12403. [DOI: 10.1039/c7dt01607g] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present review describes the contributions and perspectives in the field of the selective hydrogenation of alkynes involving the utilization of colloidal methodologies.
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Affiliation(s)
| | | | - Carmen Claver
- Centre Tecnològic de la Química
- 43007 Tarragona
- Spain
- Departament de Química Física i Inorgánica
- Universitat Rovira i Virgili
| | | | - Cyril Godard
- Centre Tecnològic de la Química
- 43007 Tarragona
- Spain
- Departament de Química Física i Inorgánica
- Universitat Rovira i Virgili
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20
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Zhang M, Zhu W, Li H, Li M, Yin S, Li Y, Wei Y, Li H. Facile fabrication of molybdenum-containing ordered mesoporous silica induced deep desulfurization in fuel. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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21
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Mehl S, Bauer T, Brummel O, Pohako-Esko K, Schulz P, Wasserscheid P, Libuda J. Ionic-Liquid-Modified Hybrid Materials Prepared by Physical Vapor Codeposition: Cobalt and Cobalt Oxide Nanoparticles in [C1C2Im][OTf] Monitored by In Situ IR Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8613-8622. [PMID: 27463531 DOI: 10.1021/acs.langmuir.6b02303] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The synthesis of ionic-liquid-modified nanomaterials has attracted much attention recently. In this study we explore the potential to prepare such systems in an ultraclean fashion by physical vapor codeposition (PVCD). We codeposit metallic cobalt and the room-temperature ionic liquid (IL) 1-ethyl-3-methylimidazolium trifluoromethanesulfonate [C1C2Im][OTf] simultaneously onto a Pd(111) surface at 100 K. This process is performed under ultrahigh-vacuum (UHV) conditions in the presence of CO, or in the presence of O2 and CO. We use time-resolved (TR) and temperature-programmed (TP) infrared reflection absorption spectroscopy (IRAS) to investigate the formation and stability of the IL-modified Co deposits in situ during the PVD-based synthesis. CO is used as a probe molecule to monitor the growth. After initial growth of flat Co films on Pd(111), multilayers of Co nanoparticles (NPs) are formed. Characteristic shifts and intensity changes are observed in the vibrational bands of both CO and the IL, which originate from the electric field at the IL/Co interface (Stark effect) and from specific adsorption of the [OTf](-) anion. These observations indicate that the Co aggregates are stabilized by mixed adsorbate shells consisting of CO and [OTf](-). The CO coverage on the Co particle decreases with increasing temperature, but some CO is preserved up to the desorption temperature of the IL (370 K). Further, the IL shell suppresses the oxidation of the Co NPs if oxygen is introduced in the PVCD process. Only chemisorbed oxygen is formed at oxygen partial pressures that swiftly lead to formation of Co3O4 in the absence of the IL (5 × 10(-6) mbar O2). This chemisorbed oxygen is found to destabilize the CO ligand shell. The oxidation of Co is not suppressed if IL and Co are deposited sequentially under otherwise identical conditions. In this case we observe the formation of fully oxidized cobalt oxide particles.
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Affiliation(s)
- Sascha Mehl
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Tanja Bauer
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Olaf Brummel
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Kaija Pohako-Esko
- Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Peter Schulz
- Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
| | - Peter Wasserscheid
- Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
- Erlangen Catalysis Resource Center and Interdisciplinary Center Interface-Controlled Processes, Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 Erlangen, Germany
| | - Jörg Libuda
- Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstraße 3, D-91058 Erlangen, Germany
- Erlangen Catalysis Resource Center and Interdisciplinary Center Interface-Controlled Processes, Friedrich-Alexander-Universität Erlangen-Nürnberg , 91058 Erlangen, Germany
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Essig S, Behrens S. Ionic Liquids as Size- and Shape-Regulating Solvents for the Synthesis of Cobalt Nanoparticles. CHEM-ING-TECH 2015. [DOI: 10.1002/cite.201500036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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