1
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Ballesteros-Soberanas J, Leyva-Pérez A. Electron-Poor Phosphines Enable the Selective Semihydrogenation Reaction of Alkynes with Pd on Carbon Catalysts. J Phys Chem Lett 2023; 14:965-970. [PMID: 36689618 PMCID: PMC9900635 DOI: 10.1021/acs.jpclett.2c03428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/20/2023] [Indexed: 06/17/2023]
Abstract
An alternative to the Lindlar catalyst for the semihydrogenation reaction of alkynes to alkenes is of high interest. Here we show that palladium on carbon (Pd/C), i.e., a widely available supported Pd catalyst, is converted from an unselective to a chemoselective catalyst during the semihydrogenation reaction of alkynes, after the addition of catalytic amounts of commercially available electron-poor phosphines. The catalytic activity is ≤7 times greater, and the selectivity is comparable to that of the industrial benchmark Lindlar catalyst.
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2
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Lan G, Li Z, Han X, Zhang L, Qiu Y, Sun X, Cheng Z, Li Y. Modulating the surface structure of nanodiamonds to enhance the electronic metal–support interaction of efficient ruthenium catalysts for levulinic acid hydrogenation. NEW J CHEM 2023. [DOI: 10.1039/d2nj06229a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
The annealed nanodiamond-supported Ru NPs with high electron density exhibit efficient activity and high stability for hydrogenation of levulinic acid.
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Affiliation(s)
- Guojun Lan
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Zhenqing Li
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Xiaojia Han
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Liping Zhang
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Yiyang Qiu
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Xiucheng Sun
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Zaizhe Cheng
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
| | - Ying Li
- Institute of Industrial Catalysis, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, China
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3
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Modak A, Gill D, Mankar AR, Pant KK, Bhasin V, Nayak C, Bhattacharya S. Controlled synthesis of Ru-single-atoms on ordered mesoporous phosphine polymers for microwave-assisted conversion of biomass-derived sugars to artificial sweeteners. NANOSCALE 2022; 14:15875-15888. [PMID: 36263781 DOI: 10.1039/d2nr03645b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Atomically dispersed metal-single-atoms have become a frontier in solid catalysis due to their characteristic electronic properties. However, for biomass conversion, employing metal-single-atoms as catalysts is rather challenging since they suffer from poor selectivity and yield due to inadequate metal-support interactions. We show here that Ru/triphenylphosphine (PPh)-based ordered mesoporous polymers afford high yields of reduced sugars, xylitol (yield ∼95%) and sorbitol (yield ∼65%) in a microwave reactor with formic acid as the only hydrogen donor. We have established a unique relationship within Ru/triphenylphosphine that shows an important ligand effect, in contrast to, Ru/triphenylamine and Ru/catechol. The tailored electronic properties in Ru/phosphine were thoroughly examined by using state-of-the-art experimental techniques viz. EXAFS, XANES, XPS, DRIFTS and HAADF-STEM. The resulting phosphine-modified catalysts show a promotion in activity and selectivity towards less vulnerable aldehydes for hydrogenation, further confirmed by DFT calculations. This finding reveals a new protocol to tailor the activity of metal-single-atoms utilizing functional porous polymers as nanoreactors.
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Affiliation(s)
- Arindam Modak
- Catalytic Reaction Engineering Lab, Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India.
| | - Deepika Gill
- Department of Physics, Indian Institute of Technology Delhi, New Delhi-110016, India.
| | - Akshay R Mankar
- Catalytic Reaction Engineering Lab, Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India.
| | - Kamal K Pant
- Catalytic Reaction Engineering Lab, Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi-110016, India.
| | - Vidha Bhasin
- Atomic and Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai-400094, India
| | - Chandrani Nayak
- Atomic and Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai-400094, India
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi, New Delhi-110016, India.
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4
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Doherty S, Knight JG, Backhouse T, Tran TST, Paterson R, Stahl F, Alharbi HY, Chamberlain TW, Bourne RA, Stones R, Griffiths A, White JP, Aslam Z, Hardare C, Daly H, Hart J, Temperton RH, O'Shea JN, Rees NH. Highly efficient and selective aqueous phase hydrogenation of aryl ketones, aldehydes, furfural and levulinic acid and its ethyl ester catalyzed by phosphine oxide-decorated polymer immobilized ionic liquid-stabilized ruthenium nanoparticles. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00205a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Phosphine oxide-decorated polymer immobilized ionic liquid stabilized RuNPs catalyse the hydrogenation of aryl ketones with remarkable selectivity for the CO bond, complete hydrogenation to the cyclohexylalcohol and hydrogenation of levulinic acid to γ-valerolactone.
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Affiliation(s)
- S. Doherty
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - J. G. Knight
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - T. Backhouse
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - T. S. T. Tran
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - R. Paterson
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - F. Stahl
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - H. Y. Alharbi
- Newcastle University Centre for Catalysis (NUCAT), School of Chemistry, Bedson Building, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - T. W. Chamberlain
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - R. A. Bourne
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - R. Stones
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - A. Griffiths
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - J. P. White
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - Z. Aslam
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Land Leeds, LS2 9JT, UK
| | - C. Hardare
- School of Chemical Engineering and Analytical Sciences, The University of Manchester, The Mill, Sackville Street Campus, Manchester, M13 9PL, UK
| | - H. Daly
- School of Chemical Engineering and Analytical Sciences, The University of Manchester, The Mill, Sackville Street Campus, Manchester, M13 9PL, UK
| | - J. Hart
- School of Physics & Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - R. H. Temperton
- School of Physics & Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - J. N. O'Shea
- School of Physics & Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - N. H. Rees
- Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
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5
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Zou H, Dai J, Suo J, Ettelaie R, Li Y, Xue N, Wang R, Yang H. Dual metal nanoparticles within multicompartmentalized mesoporous organosilicas for efficient sequential hydrogenation. Nat Commun 2021; 12:4968. [PMID: 34404796 PMCID: PMC8371113 DOI: 10.1038/s41467-021-25226-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/28/2021] [Indexed: 12/02/2022] Open
Abstract
Controlling localization of multiple metal nanoparticles on a single support is at the cutting edge of designing cascade catalysts, but is still a scientific and technological challenge because of the lack of nanostructured materials that can not only host metal nanoparticles in different sub-compartments but also enable efficient molecular transport between different metals. Herein we report a multicompartmentalized mesoporous organosilica with spatially separated sub-compartments that are connected by short nanochannels. Such a unique structure allows co-localization of Ru and Pd nanoparticles in a nanoscale proximal fashion. The so designed cascade catalyst exhibits an order of magnitude activity enhancement in the sequential hydrogenation of nitroarenes to cyclohexylamines compared with its mono/bi-metallic counterparts. Crucially, an interesting phenomenon of neighboring metal-assisted hydrogenation via hydrogen spillover is observed, contributing to the significant enhancement in catalytic efficiency. The multicompartmentalized architectures along with the revealed mechanism of accelerated hydrogenation provide vast opportunity for designing efficient cascade catalysts.
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Affiliation(s)
- Houbing Zou
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China
| | - Jinyu Dai
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, China
| | - Jinquan Suo
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, China
| | - Rammile Ettelaie
- Food Colloids Group, School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Yuan Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China
| | - Nan Xue
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China
| | - Runwei Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, China.
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China.
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6
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Zhang ZJ, Zhou X, Li D, Chen Y, Xiao WW, Li RT, Shao LD. Aerobic Copper-Catalyzed Intramolecular Cascade Oxidative Isomerization/[4+4] Cyclization of 2,2'-Disubstituted Stilbenes. J Org Chem 2021; 86:7609-7624. [PMID: 33904741 DOI: 10.1021/acs.joc.1c00656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An aerobic copper-catalyzed cascade oxidative isomerization/[4+4] cyclization of 2,2'-disubstituted stilbenes is described. Under the mild CuCl/DBED/air catalytic system, various 5,10-heteroatom-containing tetrahydroindeno[2,1-a]indenes were efficiently prepared through the difunctionalizations of alkenes in a highly atom economic manner. Mechanistic investigations suggested the bicyclic product was likely formed through a sequence of rapid single-electron oxidation/[4+4] cyclization from 2,2'-disubstituted stilbene. The antarafacial manner of the thermally allowed [4+4] cyclization was further proven by series of control experiments and density functional theory calculations. Our findings provide an important addition to the aerobic copper-catalyzed oxidative cyclization.
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Affiliation(s)
- Zhi-Jun Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Xu Zhou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Yang Chen
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Wen-Wen Xiao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, China
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7
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Chai Z. Light-Driven Alcohol Splitting by Heterogeneous Photocatalysis: Recent Advances, Mechanism and Prospects. Chem Asian J 2021; 16:460-473. [PMID: 33448692 PMCID: PMC7986840 DOI: 10.1002/asia.202001312] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/13/2021] [Indexed: 11/19/2022]
Abstract
Splitting of alcohols into hydrogen and corresponding carbonyl compounds, also called acceptorless alcohol dehydrogenation, is of great significance for both synthetic chemistry and hydrogen production. Light-Driven Alcohol Splitting (LDAS) by heterogeneous photocatalysis is a promising route to achieve such transformations, and it possesses advantages including high selectivity of the carbonyl compounds, extremely mild reaction conditions (room temperature and irradiation of visible light) and easy separation of the photocatalysts from the reaction mixtures. Because a variety of alcohols can be derived from biomass, LDAS can also be regarded as one of the most sustainable approaches for hydrogen production. In this Review, recent advances in the LDAS catalyzed by the heterogeneous photocatalysts are summarized, focusing on the mechanistic insights for the LDAS and aspects that influence the performance of the photocatalysts from viewpoints of metallic co-catalysts, semiconductors, and metal/semiconductor interfaces. In addition, challenges and prospects have been discussed in order to present a complete picture of this field.
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Affiliation(s)
- Zhigang Chai
- Department of Chemistry – Ångström LaboratoryUppsala University75121UppsalaSweden
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8
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Chen M, Mou X, Wang S, Chen X, Tan Y, Chen M, Zhao Z, Huang C, Yang W, Lin R, Ding Y. Porous organic polymer-supported palladium catalyst for hydroesterification of olefins. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Highly Active Ruthenium Catalyst Supported on Magnetically Separable Mesoporous Organosilica Nanoparticles. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10175769] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A facile and direct method for synthesizing magnetic periodic mesoporous organosilica nanoparticles from pure organosilane precursors is described. Magnetic ethylene- and phenylene-bridged periodic mesoporous organosilica nanoparticles (PMO NPs) were prepared by nanoemulsification techniques. For fabricating magnetic ethylene- or phenylene-bridged PMO NPs, hydrophobic magnetic nanoparticles in an oil-in-water (o/w) emulsion were prepared, followed by a sol–gel condensation of the incorporated bridged organosilane precursor (1,2 bis(triethoxysilyl)ethane or 1,4 bis(triethoxysilyl)benzene), respectively. The resulting materials were characterized using high-resolution scanning electron microscopy (HR-SEM), high-resolution transmission electron microscopy (HR-TEM), energy-dispersive X-ray (EDX) spectroscopy, powder X-ray diffraction (XRD), solid-state NMR analysis, and nitrogen sorption analysis (N2-BET). The magnetic ethylene-bridged PMO NPs were successfully loaded using a ruthenium oxide catalyst by means of sonication and evaporation under mild conditions. The obtained catalytic system, termed Ru@M-Ethylene-PMO NPS, was applied in a reduction reaction of aromatic compounds. It exhibited very high catalytic behavior with easy separation from the reaction medium by applying an external magnetic field.
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10
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Leeuwen PWNM, Cano I, Freixa Z. Secondary Phosphine Oxides: Bifunctional Ligands in Catalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000493] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Piet W. N. M. Leeuwen
- Laboratoire de Physique et Chimie des Nano-Objects, INSA-Toulouse 135 Avenue de Rangueil 31077 Toulouse France
| | - Israel Cano
- Departamento de Física Aplicada Facultad de Ciencias Universidad de Cantabria 39005 Santander Spain
| | - Zoraida Freixa
- Department of Applied Chemistry Faculty of Chemistry University of the Basque Country (UPV-EHU) 20080 San Sebastián Spain
- Ikerbasque Basque Foundation for Science 48013 Bilbao Spain
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11
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Sultana S, Alzahrani N, Alzahrani R, Alshamrani W, Aloufi W, Ali A, Najib S, Siddiqui NA. Stability issues and approaches to stabilised nanoparticles based drug delivery system. J Drug Target 2020; 28:468-486. [PMID: 31984810 DOI: 10.1080/1061186x.2020.1722137] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Nanoparticles form the fundamental building blocks for many exciting applications in various scientific disciplines due to its unique features such as large surface to mass ratio, targeting potential, ability to adsorbed and carry other compound which makes them suitable for biomedical applications. However, the problem of the large-scale synthesis of nanoparticles remains challenging due to physical instability associated with nanoparticles which lead to generation of aggregates particles with high polydispersity index (PDI) indicating low particle homogeneity and eventually loss of their special nanoscale properties. The stabilisation concept can be generated by repulsive electrostatic force, which nanoparticles experience, when they are surrounded by a double layer of electric charges. Selection of proper stabiliser will govern the stability of NPs and ultimately development of optimised drug delivery system. This review summarises mechanism of physical instability issues likely to be encountered during the development of nanoformulations. It also discusses potential stabilising agents used so far and their mechanism in achieving stable nanosystems.
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Affiliation(s)
| | | | | | | | - Waad Aloufi
- Pharmaceutics, Taif University, Taif, Saudi Arabia
| | - Amena Ali
- Pharmaceutical Chemistry, Taif University, Taif, Saudi Arabia
| | - Shehla Najib
- Pharmacognosy and Phytochemistry, King Khalid University, Abha, Saudi Arabia
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12
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Affiliation(s)
- M. Rosa Axet
- UPR8241, Université de Toulouse, UPS, INPT, CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de NarbonneF-31077 Toulouse cedex 4, France
| | - Karine Philippot
- UPR8241, Université de Toulouse, UPS, INPT, CNRS, LCC (Laboratoire de Chimie de Coordination), 205 Route de NarbonneF-31077 Toulouse cedex 4, France
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13
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Kaźmierczak K, Ramamoorthy RK, Moisset A, Viau G, Viola A, Giraud M, Peron J, Sicard L, Piquemal JY, Besson M, Perret N, Michel C. Importance of the decoration in shaped cobalt nanoparticles in the acceptor-less secondary alcohol dehydrogenation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00390e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ligands matter for shaped decorated Co nanoparticles, at the frontier between homogeneous and heterogeneous catalysis.
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14
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Asensio JM, Bouzouita D, van Leeuwen PWNM, Chaudret B. σ-H-H, σ-C-H, and σ-Si-H Bond Activation Catalyzed by Metal Nanoparticles. Chem Rev 2019; 120:1042-1084. [PMID: 31659903 DOI: 10.1021/acs.chemrev.9b00368] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Activation of H-H, Si-H, and C-H bonds through σ-bond coordination has grown in the past 30 years from a scientific curiosity to an important tool in the functionalization of hydrocarbons. Several mechanisms were discovered via which the initially σ-bonded substrate could be converted: oxidative addition, heterolytic cleavage, σ-bond metathesis, electrophilic attack, etc. The use of metal nanoparticles (NPs) in this area is a more recent development, but obviously nanoparticles offer a much richer basis than classical homogeneous and heterogeneous catalysts for tuning reactivity for such a demanding process as C-H functionalization. Here, we will review the surface chemistry of nanoparticles and catalytic reactions occurring in the liquid phase, catalyzed by either colloidal or supported metal NPs. We consider nanoparticles prepared in solution, which are stabilized and tuned by polymers, ligands, and supports. The question we have addressed concerns the differences and similarities between molecular complexes and metal NPs in their reactivity toward σ-bond activation and functionalization.
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Affiliation(s)
- Juan M Asensio
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Donia Bouzouita
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Piet W N M van Leeuwen
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
| | - Bruno Chaudret
- LPCNO, Université de Toulouse , CNRS , INSA, UPS, 135 avenue de Rangueil , 31077 Toulouse , France
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15
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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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16
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Karakanov EA, Zolotukhina AV, Ivanov AO, Maximov AL. Dendrimer-Encapsulated Pd Nanoparticles, Immobilized in Silica Pores, as Catalysts for Selective Hydrogenation of Unsaturated Compounds. ChemistryOpen 2019; 8:358-381. [PMID: 30976477 PMCID: PMC6437834 DOI: 10.1002/open.201800280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/21/2019] [Indexed: 01/22/2023] Open
Abstract
Heterogeneous Pd-containing nanocatalysts, based on poly (propylene imine) dendrimers immobilized in silica pores and networks, obtained by co-hydrolysis in situ, have been synthesized and examined in the hydrogenation of various unsaturated compounds. The catalyst activity and selectivity were found to strongly depend on the carrier structure as well as on the substrate electron and geometric features. Thus, mesoporous catalyst, synthesized in presence of both polymeric template and tetraethoxysilane, revealed the maximum activity in the hydrogenation of various styrenes, including bulky and rigid stilbene and its isomers, reaching TOF values of about 230000 h-1. Other mesoporous catalyst, synthesized in the presence of polymeric template, but without addition of Si(OEt)4, provided the trans-cyclooctene formation with the selectivity of 90-95 %, appearing as similar to homogeneous dendrimer-based catalysts. Microporous catalyst, obtained only on the presence of Si(OEt)4, while dendrimer molecules acting as both anchored ligands and template, demonstrated the maximum activity in the hydrogenation of terminal linear alkynes and conjugated dienes, reaching TOF values up to 400000 h-1. Herein the total selectivity on alkene in the case of terminal alkynes and conjugated dienes reached 95-99 % even at hydrogen pressure of 30 atm. The catalysts synthesized can be easily isolated from reaction products and recycled without significant loss of activity.
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Affiliation(s)
- Edward A. Karakanov
- Department of Petroleum Chemistry and Organic CatalysisMoscow State University119991MoscowRussian Federation
| | - Anna V. Zolotukhina
- Department of Petroleum Chemistry and Organic CatalysisMoscow State University119991MoscowRussian Federation
- A.V. Topchiev Institute of Petrochemical synthesis RAS119991MoscowRussian Federation
| | - Andrey O. Ivanov
- A.V. Topchiev Institute of Petrochemical synthesis RAS119991MoscowRussian Federation
| | - Anton L. Maximov
- Department of Petroleum Chemistry and Organic CatalysisMoscow State University119991MoscowRussian Federation
- A.V. Topchiev Institute of Petrochemical synthesis RAS119991MoscowRussian Federation
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17
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Ibrahim M, Wei MM, Deydier E, Manoury E, Poli R, Lecante P, Philippot K. Rhodium nanoparticles stabilized by ferrocenyl-phosphine ligands: synthesis and catalytic styrene hydrogenation. Dalton Trans 2019; 48:6777-6786. [PMID: 31020979 DOI: 10.1039/c9dt01006h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A series of ferrocenylphosphine-stabilized rhodium nanoparticles has been prepared in one pot from the organometallic [Rh(η3-C3H5)3] precursor. This complex has been decomposed by hydrogen treatment (3 bar) in dichloromethane in the presence of five different ferrocene-based phosphine ligands. Very small rhodium nanoparticles in the size range of 1.1-1.7 nm have been obtained. These nanoparticles have shown activity in a model catalytic reaction, namely the hydrogenation of styrene. These results evidence that the metal surface is not blocked despite the steric bulk of the stabilizing ligands. Moreover, certain selectivity has been observed depending on the ligand employed. To the best of our knowledge, such a type of compound has not yet been used for stabilizing metal nanoparticles and our findings highlight the interest to do so.
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Affiliation(s)
- M Ibrahim
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, BP 44099, F-31077 Toulouse Cedex 4, France.
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18
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An Y, Yu J, Han Y. Recent Advances in the Chemistry of
N
‐Heterocyclic‐Carbene‐Functionalized Metal‐Nanoparticles and Their Applications. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800450] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
| | - Jian‐Gang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- College of Chemical and Material Engineering, Quzhou University Quzhou, Zhejiang 324000 China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
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19
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Mondloch J, Özkar S, Finke RG. "Weakly Ligated, Labile Ligand" Nanoparticles: The Case of Ir(0) n ·(H +Cl -) m. ACS OMEGA 2018; 3:14538-14550. [PMID: 31458138 PMCID: PMC6643726 DOI: 10.1021/acsomega.8b01569] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 09/27/2018] [Indexed: 06/10/2023]
Abstract
It is of considerable interest to prepare weakly ligated, labile ligand (WLLL) nanoparticles for applications in areas such as chemical catalysis. WLLL nanoparticles can be defined as nanoparticles with sufficient, albeit minimal, surface ligands of moderate binding strength to meta-stabilize nanoparticles, initial stabilizer ligands that can be readily replaced by other, desired, more strongly coordinating ligands and removed completely when desired. Herein, we describe WLLL nanoparticles prepared from [Ir(1,5-COD)Cl]2 reduction under H2, in acetone. The results suggest that H+Cl--stabilized Ir(0) n nanoparticles, herein Ir(0) n ·(H+Cl-) a , serve as a WLLL nanoparticle for the preparation of, as illustrative examples, five specific nanoparticle products: Ir(0) n ·(Cl-Bu3NH+) a , Ir(0) n ·(Cl-Dodec3NH+) a , Ir(0) n ·(POct3)0.2n (Cl-H+) b , Ir(0) n ·(POct3)0.2n , and the γ-Al2O3-supported heterogeneous catalyst, Ir(0) n ·(γ-Al2O3) a (Cl-H+) b . (where a and b vary for the differently ligated nanoparticles; in addition, solvent can be present as a nanoparticle surface ligand). With added POct3 as a key, prototype example, an important feature is that a minimum, desired, experimentally determinable amount of ligand (e.g., just 0.2 equiv POct3 per mole of Ir) can be added, which is shown to provide sufficient stabilization that the resultant Ir(0) n ·(POct3)0.2n (Cl-H+) b is isolable. Additionally, the initial labile ligand stabilizer HCl can be removed to yield Ir(0) n ·(POct3)0.2n that is >99% free of Cl- by a AgCl precipitation test. The results provide strong support for the weakly ligated, labile ligand nanoparticle concept and specific support for Ir(0) n ·(H+Cl-) a as a WLLL nanoparticle.
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Affiliation(s)
- Joseph
E. Mondloch
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Saim Özkar
- Department
of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Richard G. Finke
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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20
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Martínez-Martínez AJ, Tegner BE, McKay AI, Bukvic AJ, Rees NH, Tizzard GJ, Coles SJ, Warren MR, Macgregor SA, Weller AS. Modulation of σ-Alkane Interactions in [Rh(L 2)(alkane)] + Solid-State Molecular Organometallic (SMOM) Systems by Variation of the Chelating Phosphine and Alkane: Access to η 2,η 2-σ-Alkane Rh(I), η 1-σ-Alkane Rh(III) Complexes, and Alkane Encapsulation. J Am Chem Soc 2018; 140:14958-14970. [PMID: 30351014 DOI: 10.1021/jacs.8b09364] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solid/gas single-crystal to single-crystal (SC-SC) hydrogenation of appropriate diene precursors forms the corresponding σ-alkane complexes [Rh(Cy2P(CH2) nPCy2)(L)][BArF4] ( n = 3, 4) and [ RhH(Cy2P(CH2)2( CH)(CH2)2PCy2)(L)][BArF4] ( n = 5, L = norbornane, NBA; cyclooctane, COA). Their structures, as determined by single-crystal X-ray diffraction, have cations exhibiting Rh···H-C σ-interactions which are modulated by both the chelating ligand and the identity of the alkane, while all sit in an octahedral anion microenvironment. These range from chelating η2,η2 Rh···H-C (e.g., [Rh(Cy2P(CH2) nPCy2)(η2η2-NBA)][BArF4], n = 3 and 4), through to more weakly bound η1 Rh···H-C in which C-H activation of the chelate backbone has also occurred (e.g., [ RhH(Cy2P(CH2)2( CH)(CH2)2PCy2)(η1-COA)][BArF4]) and ultimately to systems where the alkane is not ligated with the metal center, but sits encapsulated in the supporting anion microenvironment, [Rh(Cy2P(CH2)3PCy2)][COA⊂BArF4], in which the metal center instead forms two intramolecular agostic η1 Rh···H-C interactions with the phosphine cyclohexyl groups. CH2Cl2 adducts formed by displacement of the η1-alkanes in solution ( n = 5; L = NBA, COA), [ RhH(Cy2P(CH2)2( CH)(CH2)2PCy2)(κ1-ClCH2Cl)][BArF4], are characterized crystallographically. Analyses via periodic DFT, QTAIM, NBO, and NCI calculations, alongside variable temperature solid-state NMR spectroscopy, provide snapshots marking the onset of Rh···alkane interactions along a C-H activation trajectory. These are negligible in [Rh(Cy2P(CH2)3PCy2)][COA⊂BArF4]; in [ RhH(Cy2P(CH2)2( CH)(CH2)2PCy2)(η1-COA)][BArF4], σC-H → Rh σ-donation is supported by Rh → σ*C-H "pregostic" donation, and in [Rh(Cy2P(CH2) nPCy2)(η2η2-NBA)][BArF4] ( n = 2-4), σ-donation dominates, supported by classical Rh(dπ) → σ*C-H π-back-donation. Dispersive interactions with the [BArF4]- anions and Cy substituents further stabilize the alkanes within the binding pocket.
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Affiliation(s)
| | - Bengt E Tegner
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Alasdair I McKay
- Chemistry Research Laboratories , University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Alexander J Bukvic
- Chemistry Research Laboratories , University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Nicholas H Rees
- Chemistry Research Laboratories , University of Oxford , Oxford OX1 3TA , United Kingdom
| | - Graham J Tizzard
- UK National Crystallography Service, Chemistry, Faculty of Natural and Environmental Sciences , University of Southampton , Southampton SO17 1BJ , United Kingdom
| | - Simon J Coles
- UK National Crystallography Service, Chemistry, Faculty of Natural and Environmental Sciences , University of Southampton , Southampton SO17 1BJ , United Kingdom
| | - Mark R Warren
- Harwell Science and Innovation Campus, Diamond Light Source Ltd. , Didcot OX11 0DE , United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences , Heriot-Watt University , Edinburgh EH14 4AS , United Kingdom
| | - Andrew S Weller
- Chemistry Research Laboratories , University of Oxford , Oxford OX1 3TA , United Kingdom
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21
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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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22
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Guo M, Li H, Ren Y, Ren X, Yang Q, Li C. Improving Catalytic Hydrogenation Performance of Pd Nanoparticles by Electronic Modulation Using Phosphine Ligands. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00872] [Citation(s) in RCA: 113] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Miao Guo
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - He Li
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yiqi Ren
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Xiaomin Ren
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Qihua Yang
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Can Li
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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23
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Ortuño MA, López N. Creating Cavities at Palladium–Phosphine Interfaces for Enhanced Selectivity in Heterogeneous Biomass Conversion. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01302] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Manuel A. Ortuño
- Institute of Chemical Research of Catalonia, ICIQ, and the Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia, ICIQ, and the Barcelona Institute of Science and Technology, BIST, Av. Països Catalans 16, 43007 Tarragona, Spain
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24
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Maligal-Ganesh RV, Brashler K, Luan X, Goh TW, Gustafson J, Wu J, Huang W. Enhanced Chemoselectivity in Pt–Fe@mSiO2 Bimetallic Nanoparticles in the Absence of Surface Modifying Ligands. Top Catal 2018. [DOI: 10.1007/s11244-018-0933-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Martínez-Prieto LM, Chaudret B. Organometallic Ruthenium Nanoparticles: Synthesis, Surface Chemistry, and Insights into Ligand Coordination. Acc Chem Res 2018; 51:376-384. [PMID: 29308876 DOI: 10.1021/acs.accounts.7b00378] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Although there has been for the past 20 years great interest in the synthesis and use of metal nanoparticles, little attention has been paid to the complexity of the surface of these species. In particular, the different aspects concerning the ligands present, their location, their mode of binding, and their dynamics have been little studied. Our group has started in the early 1990s an investigation of the surface coordination chemistry of ruthenium and platinum nanoparticles but at that time with a lack of adequate techniques to fulfill our ambition. Over 10 years later, we went back to this problem and could obtain a more precise vision of the surface species. This Account is centered on ruthenium chemistry. This metal has been the most studied in our group, first thanks to the availability of a precursor, Ru(cyclooctadiene)(cyclooctatriene) (Ru(COD)(COT)), which possesses the ability to decompose in very mild conditions without leaving residues on the resulting nanoparticles and second because of the absence of magnetic perturbations (Knight shift, paramagnetism, ferromagnetism, etc.), which has allowed the use of solution and solid state NMR. In this respect, it has been possible to evidence the presence of a high concentration of hydrides on the surface of these particles, to study their dynamics, and to show that since the polarity of the Ru-H bond is similar to that of the C-H bond, a Ru/H NP would behave as a big lipophilic entity. The second point was to characterize the coordination of ancillary ligands. This has been achieved for different ligands, in particular phosphines and carbenes, which made possible the study of the modification of NP reactivity induced by surface ligands. This led to the conclusion that the presence of surface ligands can benefit both the activity of NP catalysts and their selectivity. If it was expected that the selectivity could be modulated, the promoting effect from the presence of ligands on, for example, arene or CO hydrogenation was totally unexpected. Playing with poison atoms (Sn, Fe, etc.) or ligands (CO) may allow us to play with the reactivity of the NPs to make them more selective for selected reactions. Finally, the search for specific ligands for nanoparticles is still in its infancy, but some examples have been found as have specific reactions of nanoparticles. Obviously arene hydrogenation and CO hydrogenation were well-known in heterogeneous catalysis, but we could demonstrate that they can be carried out in very mild conditions on ligand stabilized RuNPs. On the other hand, the enantiospecific C-H activation leading to enantioselective labeling of large organic or biomolecules or the C-C bond cleavage in mild conditions were both unexpected. There is still much work to perform for reaching the degree of control on nanoparticles that is presently achieved in organometallic molecular chemistry, but this work shows that it is possible.
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Affiliation(s)
- Luis M. Martínez-Prieto
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135, Avenue de Rangueil, 31077 Toulouse, France
| | - Bruno Chaudret
- LPCNO, Université de Toulouse, CNRS, INSA, UPS, 135, Avenue de Rangueil, 31077 Toulouse, France
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26
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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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27
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Rossi LM, Fiorio JL, Garcia MAS, Ferraz CP. The role and fate of capping ligands in colloidally prepared metal nanoparticle catalysts. Dalton Trans 2018; 47:5889-5915. [DOI: 10.1039/c7dt04728b] [Citation(s) in RCA: 169] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this Perspective article, we highlight emerging opportunities for the rational design of catalysts upon the choice, exchange, partial removal or pyrolysis of ligands.
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Affiliation(s)
- Liane M. Rossi
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Jhonatan L. Fiorio
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Marco A. S. Garcia
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Camila P. Ferraz
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
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28
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Martinez-Espinar F, Blondeau P, Nolis P, Chaudret B, Claver C, Castillón S, Godard C. NHC-stabilised Rh nanoparticles: Surface study and application in the catalytic hydrogenation of aromatic substrates. J Catal 2017. [DOI: 10.1016/j.jcat.2017.08.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Martínez-Prieto LM, Rakers L, López-Vinasco AM, Cano I, Coppel Y, Philippot K, Glorius F, Chaudret B, van Leeuwen PWNM. Soluble Platinum Nanoparticles Ligated by Long-Chain N-Heterocyclic Carbenes as Catalysts. Chemistry 2017; 23:12779-12786. [DOI: 10.1002/chem.201702288] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Luis M. Martínez-Prieto
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets, UMR5215 INSA-CNRS UPS; Institut des Sciences appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Lena Rakers
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Angela M. López-Vinasco
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets, UMR5215 INSA-CNRS UPS; Institut des Sciences appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Israel Cano
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets, UMR5215 INSA-CNRS UPS; Institut des Sciences appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Yannick Coppel
- LCC; Laboratoire de Chimie de Coordination; CNRS, UPS; 205, Route de Narbonne 31077 Toulouse France
| | - Karine Philippot
- LCC; Laboratoire de Chimie de Coordination; CNRS, UPS; 205, Route de Narbonne 31077 Toulouse France
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Germany
| | - Bruno Chaudret
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets, UMR5215 INSA-CNRS UPS; Institut des Sciences appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Piet W. N. M. van Leeuwen
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets, UMR5215 INSA-CNRS UPS; Institut des Sciences appliquées; 135, Avenue de Rangueil 31077 Toulouse France
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30
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Catalytic Hydrogenation of Arenes in Water Over In Situ Generated Ruthenium Nanoparticles Immobilized on Carbon. ChemCatChem 2017. [DOI: 10.1002/cctc.201700056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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31
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Llop Castelbou J, Szeto KC, Barakat W, Merle N, Godard C, Taoufik M, Claver C. A new approach for the preparation of well-defined Rh and Pt nanoparticles stabilized by phosphine-functionalized silica for selective hydrogenation reactions. Chem Commun (Camb) 2017; 53:3261-3264. [PMID: 28261724 DOI: 10.1039/c6cc10338c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a new methodology for the synthesis of well-defined metallic nanoparticles supported on silica is described. This methodology is based on the surface control provided by SOMC. The nanoparticles are formed via the organometallic approach and are catalytically active in the hydrogenation of p-xylene, 3-hexyne, 4-phenyl-2 butanone, benzaldehyde, and furfural.
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Affiliation(s)
- J Llop Castelbou
- Departament de Química Física i Inorgànica, Universitat Rovira I Virgili, C/Marcel·li Domingo s/n, Campus Sescelades, 43007, Tarragona, Spain.
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32
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Martínez-Prieto LM, Cano I, Márquez A, Baquero EA, Tricard S, Cusinato L, Del Rosal I, Poteau R, Coppel Y, Philippot K, Chaudret B, Cámpora J, van Leeuwen PWNM. Zwitterionic amidinates as effective ligands for platinum nanoparticle hydrogenation catalysts. Chem Sci 2017; 8:2931-2941. [PMID: 28451359 PMCID: PMC5376718 DOI: 10.1039/c6sc05551f] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 01/31/2017] [Indexed: 11/21/2022] Open
Abstract
Pt NPs covered with zwitterionic amidinates as ligands exhibit an exciting ligand effect in the hydrogenation of carbonyl groups when electron donor/acceptor groups are introduced in the N-substituents.
Ligand control of metal nanoparticles (MNPs) is rapidly gaining importance as ligands can stabilize the MNPs and regulate their catalytic properties. Herein we report the first example of Pt NPs ligated by imidazolium-amidinate ligands that bind strongly through the amidinate anion to the platinum surface atoms. The binding was established by 15N NMR spectroscopy, a precedent for nitrogen ligands on MNPs, and XPS. Both monodentate and bidentate coordination modes were found. DFT showed a high bonding energy of up to –48 kcal mol–1 for bidentate bonding to two adjacent metal atoms, which decreased to –28 ± 4 kcal mol–1 for monodentate bonding in the absence of impediments by other ligands. While the surface is densely covered with ligands, both IR and 13C MAS NMR spectra proved the adsorption of CO on the surface and thus the availability of sites for catalysis. A particle size dependent Knight shift was observed in the 13C MAS NMR spectra for the atoms that coordinate to the surface, but for small particles, ∼1.2 nm, it almost vanished, as theory for MNPs predicts; this had not been experimentally verified before. The Pt NPs were found to be catalysts for the hydrogenation of ketones and a notable ligand effect was observed in the hydrogenation of electron-poor carbonyl groups. The catalytic activity is influenced by remote electron donor/acceptor groups introduced in the aryl-N-substituents of the amidinates; p-anisyl groups on the ligand gave catalysts several times faster the ligand containing p-chlorophenyl groups.
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Affiliation(s)
- L M Martínez-Prieto
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - I Cano
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - A Márquez
- Instituto de Investigaciones Químicas , CSIC-Universidad de Sevilla , C/Américo Vespucio, 49 , 41092 Sevilla , Spain .
| | - E A Baquero
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - S Tricard
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - L Cusinato
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - I Del Rosal
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - R Poteau
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - Y Coppel
- CNRS , LCC (Laboratoire de Chimie de Coordination) , Université de Toulouse , UPS , INPT , 205 route de Narbonne, BP 44099 , F-31077-Toulouse Cedex 4 , France
| | - K Philippot
- CNRS , LCC (Laboratoire de Chimie de Coordination) , Université de Toulouse , UPS , INPT , 205 route de Narbonne, BP 44099 , F-31077-Toulouse Cedex 4 , France
| | - B Chaudret
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
| | - J Cámpora
- Instituto de Investigaciones Químicas , CSIC-Universidad de Sevilla , C/Américo Vespucio, 49 , 41092 Sevilla , Spain .
| | - P W N M van Leeuwen
- LPCNO , Laboratoire de Physique et Chimie des Nano-Objets , UMR5215 INSA-CNRS-UPS , Institut des Sciences Appliquées , 135, Avenue de Rangueil , F-31077 Toulouse , France . ;
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33
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Ganji P, van Leeuwen PWNM. Phosphine Supported Ruthenium Nanoparticle Catalyzed Synthesis of Substituted Pyrazines and Imidazoles from α-Diketones. J Org Chem 2017; 82:1768-1774. [DOI: 10.1021/acs.joc.6b03032] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Prasad Ganji
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Piet W. N. M. van Leeuwen
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Laboratoire
de Physique et Chimie des Nano Objets, LPCNO, UMR5215 INSA-UPSCNRS, Université de Toulouse, Institut National des Sciences Appliquées, 135 Avenue de Rangueil, 31077 Toulouse, France
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34
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Cano I, Martínez-Prieto LM, Chaudret B, van Leeuwen PWNM. Iridium versus Iridium: Nanocluster and Monometallic Catalysts Carrying the Same Ligand Behave Differently. Chemistry 2017; 23:1444-1450. [DOI: 10.1002/chem.201605352] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Israel Cano
- LPCNO; Laboratoire de Physique et Chimie de Nano-Objets; UMR 5215 INSA-CNRS-UPS; Institut National des Sciences Appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Luis M. Martínez-Prieto
- LPCNO; Laboratoire de Physique et Chimie de Nano-Objets; UMR 5215 INSA-CNRS-UPS; Institut National des Sciences Appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Bruno Chaudret
- LPCNO; Laboratoire de Physique et Chimie de Nano-Objets; UMR 5215 INSA-CNRS-UPS; Institut National des Sciences Appliquées; 135, Avenue de Rangueil 31077 Toulouse France
| | - Piet W. N. M. van Leeuwen
- LPCNO; Laboratoire de Physique et Chimie de Nano-Objets; UMR 5215 INSA-CNRS-UPS; Institut National des Sciences Appliquées; 135, Avenue de Rangueil 31077 Toulouse France
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35
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Branca M, Corp K, Ciuculescu-Pradines D, Coppel Y, Lecante P, Amiens C. Insights into the chemistry of bismuth nanoparticles. NEW J CHEM 2017. [DOI: 10.1039/c7nj01308f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Alkynyl ligands are proposed as new stabilizing agents for bismuth nanoparticles.
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Affiliation(s)
- Marlène Branca
- Laboratoire de Chimie de Coordination
- CNRS
- LCC
- 205 Route de Narbonne
- F-31077 Toulouse
| | - Kathryn Corp
- Laboratoire de Chimie de Coordination
- CNRS
- LCC
- 205 Route de Narbonne
- F-31077 Toulouse
| | | | - Yannick Coppel
- Laboratoire de Chimie de Coordination
- CNRS
- LCC
- 205 Route de Narbonne
- F-31077 Toulouse
| | - Pierre Lecante
- Centre d'Elaboration de Matériaux et d'Etudes Structurales
- CNRS
- CEMES
- 29 rue J. Marvig
- F-31055 Toulouse
| | - Catherine Amiens
- Laboratoire de Chimie de Coordination
- CNRS
- LCC
- 205 Route de Narbonne
- F-31077 Toulouse
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36
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P-Stereogenic Phosphines for the Stabilisation of Metal Nanoparticles. A Surface State Study. Catalysts 2016. [DOI: 10.3390/catal6120213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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37
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Kunz S. Supported, Ligand-Functionalized Nanoparticles: An Attempt to Rationalize the Application and Potential of Ligands in Heterogeneous Catalysis. Top Catal 2016. [DOI: 10.1007/s11244-016-0687-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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38
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39
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Gmeiner J, Seibicke M, Behrens S, Spliethoff B, Trapp O. Investigation of the Hydrogenation of 5-Methylfurfural by Noble Metal Nanoparticles in a Microcapillary Reactor. CHEMSUSCHEM 2016; 9:583-587. [PMID: 26871887 DOI: 10.1002/cssc.201600045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Indexed: 06/05/2023]
Abstract
On-column reaction gas chromatography (ocRGC) was successfully utilized as high-throughput platform for monitoring of the conversion and selectivity of hydrogenation of 5-methylfurfural catalyzed by polymer-stabilized Ru and Pd nanoparticles. We were able to elucidate the effect of various reaction conditions, mainly together with the catalyst loading on the conversion rate and the selectivity of the reaction. Our strategy yields significant improvements in reaction analysis times and cost effectiveness in comparison to standard methods. We are able to demonstrate that ocRGC approach provides valuable information about the reaction system that gives scientists a tool to design suitable catalytic systems for enhanced sustainable chemistry in the future.
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Affiliation(s)
- Julia Gmeiner
- Organisch-Chemisches-Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Max Seibicke
- Organisch-Chemisches-Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Silke Behrens
- Institut für Katalyseforschung und Technologie, Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Bernd Spliethoff
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Oliver Trapp
- Organisch-Chemisches-Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
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40
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Amiens C, Ciuculescu-Pradines D, Philippot K. Controlled metal nanostructures: Fertile ground for coordination chemists. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.07.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Cano I, Tschan MJL, Martínez-Prieto LM, Philippot K, Chaudret B, van Leeuwen PWNM. Enantioselective hydrogenation of ketones by iridium nanoparticles ligated with chiral secondary phosphine oxides. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02206a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral iridium nanoparticles (IrNPs) were synthesized by H2reduction of (1,5-cyclooctadiene)(methoxy)iridium(i) dimer ([Ir(OMe)(COD)]2) in the presence of an asymmetric secondary phosphine oxide.
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Affiliation(s)
- Israel Cano
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
| | - Mathieu J.-L. Tschan
- Institute of Chemical Research of Catalonia (ICIQ)
- The Barcelona Institute of Science and Technology
- 43007 Tarragona
- Spain
| | - Luis M. Martínez-Prieto
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
| | - Karine Philippot
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- Université de Toulouse
- UPS
- INPT
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
| | - Piet W. N. M. van Leeuwen
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
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42
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Martínez-Prieto LM, Ferry A, Rakers L, Richter C, Lecante P, Philippot K, Chaudret B, Glorius F. Long-chain NHC-stabilized RuNPs as versatile catalysts for one-pot oxidation/hydrogenation reactions. Chem Commun (Camb) 2016; 52:4768-71. [DOI: 10.1039/c6cc01130f] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The synthesis and catalytic activity of long-chain NHC-stabilized RuNPs are presented.
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Affiliation(s)
- L. M. Martínez-Prieto
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- F-31077 Toulouse
- France
| | - A. Ferry
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - L. Rakers
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - C. Richter
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
| | - P. Lecante
- CEMES (Centre d’Elaboration de Matériaux et d’Etudes Structurales)
- CNRS
- F-31055 Toulouse
- France
| | - K. Philippot
- Laboratoire de Chimie de Coordination
- CNRS
- LCC
- F-31077 Toulouse
- France
| | - B. Chaudret
- LPCNO; Laboratoire de Physique et Chimie des Nano-Objets
- UMR5215 INSA-CNRS-UPS
- Institut des Sciences appliquées
- F-31077 Toulouse
- France
| | - F. Glorius
- Organisch-Chemisches Institut
- Westfälische Wilhelms-Universität Münster
- 48149 Münster
- Germany
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43
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García-Peña NG, Caminade AM, Ouali A, Redón R, Turrin CO. Solventless synthesis of Ru(0) composites stabilized with polyphosphorhydrazone (PPH) dendrons and their use in catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra13709a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ruthenium is in the air: small Ru NPs are obtained by milling RuCl3, NaBH4 and polyphosphorhydrazone dendrons under air. The whole dendron structure is involved in the stabilization process. These NPs catalyze the selective hydrogenation of styrene.
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Affiliation(s)
- Nidia G. García-Peña
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Anne-Marie Caminade
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Armelle Ouali
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
| | - Rocío Redón
- Departamento de Tecnociencias
- Centro de Ciencias Aplicadas y Desarrollo Tecnológico
- Universidad Nacional Autónoma de México
- México
- Mexico
| | - Cédric-Olivier Turrin
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077 Toulouse cedex 4
- France
- Université de Toulouse
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44
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Ibrahim M, Garcia MAS, Vono LLR, Guerrero M, Lecante P, Rossi LM, Philippot K. Polymer versus phosphine stabilized Rh nanoparticles as components of supported catalysts: implication in the hydrogenation of cyclohexene model molecule. Dalton Trans 2016; 45:17782-17791. [DOI: 10.1039/c6dt03104h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The influence of stabilizers on the catalytic performance of small rhodium nanoparticles was studied through a model hydrogenation reaction.
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Affiliation(s)
- M. Ibrahim
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - M. A. S. Garcia
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - L. L. R. Vono
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - M. Guerrero
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - P. Lecante
- CNRS UPR 8011
- CEMES (Centre d'Elaboration des Matériaux et d'Etudes Structurales)
- F-31055 Toulouse
- France
| | - L. M. Rossi
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - K. Philippot
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
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45
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Gmeiner J, Behrens S, Spliethoff B, Trapp O. Ruthenium Nanoparticles in High-Throughput Studies of Chemoselective Carbonyl Hydrogenation Reactions. ChemCatChem 2015. [DOI: 10.1002/cctc.201501069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julia Gmeiner
- Organisch-Chemisches-Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Silke Behrens
- Institut für Katalyseforschung und Technologie; Karlsruhe Institute of Technology; Herrmann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Bernd Spliethoff
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Oliver Trapp
- Organisch-Chemisches-Institut; Ruprecht-Karls-Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
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46
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Martínez-Prieto LM, Ferry A, Lara P, Richter C, Philippot K, Glorius F, Chaudret B. New Route to Stabilize Ruthenium Nanoparticles with Non-Isolable Chiral N-Heterocyclic Carbenes. Chemistry 2015; 21:17495-502. [DOI: 10.1002/chem.201502601] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Indexed: 11/10/2022]
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47
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Maximov A, Zolotukhina A, Murzin V, Karakhanov E, Rosenberg E. Ruthenium Nanoparticles Stabilized in Cross-Linked Dendrimer Matrices: Hydrogenation of Phenols in Aqueous Media. ChemCatChem 2015. [DOI: 10.1002/cctc.201403054] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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48
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Dai Y, Wang Y, Liu B, Yang Y. Metallic nanocatalysis: an accelerating seamless integration with nanotechnology. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:268-289. [PMID: 25363149 DOI: 10.1002/smll.201400847] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 07/06/2014] [Indexed: 06/04/2023]
Abstract
Rapidly growing research interests surround heterogeneous nanocatalysis, in which metal nanoparticles (NPs) play a pivotal role as structure-sensitive active centers. With advances in nanotechnology, the morphology of metal NPs can be precisely controlled, which can provide well-defined models of nanocatalysts for understanding and optimizing the structure-reactivity correlations and the catalytic mechanisms. Benefiting from this, further credible evidence can be acquired on well-defined nanocatalysts rather than common multiphase systems, which is of great significance for the design and practical application of active metal nanocatalysts. Numerous studies demonstrate that enhanced structure-sensitive catalytic activity and selectivity are dependent not only on an increased surface-to-volume ratio and special surface atom arrangements, but also on tailored metal-metal and metal-organic-ligand interfaces, which is ascribed to the size, shape, composition, and ligand effects. Size-reactivity relationships and underlying size-dependent metal-oxide interactions are observed in many reactions. For bimetallic nanocatalysts, the composition and nanostructure play critical roles in regulating reactivities. Crystal facets favor individual catalytic selectivity and rates via distinct reaction pathways occurring on diverse atomic arrangements, both to low-index and high-index facets. High-index facets exhibit superior reactivities owing to their high-energy active sites, which facilitate rapid bond-breaking and new bond generation. Additionally, organic ligands may enhance the catalytic activity and selectivity of metal nanocatalysts via changing the adsorption energies of reactants and/or reaction energy barriers. Furthermore, atomically dispersed metals, especially single-atom metallic catalysts, have emerged recently, which can achieve better specific catalytic activity compared to conventional nanostructured metallic catalysts due to the low-coordination environment, stronger interaction with supports, and maximum service efficiency. Here, recent progress in shaped metallic nanocatalysts is examined and several parameters are discussed, as well as finally highlighting single-atom metallic catalysts and some perspectives on nanocatalysis. The integration of nanotechnology and nanocatalysis has been shaping up and, no doubt, the combination of sensitive characterization techniques and quantum calculations will play more important roles in such processes.
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Affiliation(s)
- Yihu Dai
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
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49
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Castelbou JL, Blondeau P, Claver C, Godard C. Surface characterisation of phosphine and phosphite stabilised Rh nanoparticles: a model study. RSC Adv 2015. [DOI: 10.1039/c5ra21835g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The surface characterisation of Rh nanoparticles stabilized by triphenylphosphine and triphenylphosphite shows differences that were correlated with distinct selectivities in catalytic styrene hydrogenation.
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Affiliation(s)
| | - Pascal Blondeau
- Departament de Química Analitica i Orgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Carmen Claver
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Cyril Godard
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
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50
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Bresó-Femenia E, Chaudret B, Castillón S. Selective catalytic hydrogenation of polycyclic aromatic hydrocarbons promoted by ruthenium nanoparticles. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01758g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Naphthalene, anthracene, triphenylene and pyrene were partially hydrogenated with selectivities between 80% and 100% under mild conditions using ruthenium NPs.
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Affiliation(s)
- Emma Bresó-Femenia
- Laboratoire de Physique et Chimie des Nano-Objets
- LPCNO
- UMR5215
- CNRS- INSA-UPS
- Université de Toulouse
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano-Objets
- LPCNO
- UMR5215
- CNRS- INSA-UPS
- Université de Toulouse
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica
- Universitat Rovira i Virgili
- C/ Marcellí Domingo s/n
- 43007 Tarragona
- Spain
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