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Abstract
Over the past few decades, the use of transition metal nanoparticles (NPs) in catalysis has attracted much attention and their use in C–C bond forming reactions constitutes one of their most important applications. A huge variety of metal NPs, which have showed high catalytic activity for C–C bond forming reactions, have been developed up to now. Many kinds of stabilizers, such as inorganic materials, magnetically recoverable materials, porous materials, organic–inorganic composites, carbon materials, polymers, and surfactants have been utilized to develop metal NPs catalysts. This review classified and outlined the categories of metal NPs by the type of support.
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Palladium Loaded Dendronized Polymer as Efficient Polymeric Sustainable Catalyst for Heck Coupling Reaction. Catal Letters 2021. [DOI: 10.1007/s10562-021-03767-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Issa S, Cousin F, Bonnevide M, Gigmes D, Jestin J, Phan TNT. Poly(ethylene oxide) grafted silica nanoparticles: efficient routes of synthesis with associated colloidal stability. SOFT MATTER 2021; 17:6552-6565. [PMID: 34151921 DOI: 10.1039/d1sm00678a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this study, poly(ethylene oxide) monomethyl ether (MPEO) of molecular weight of 5000, 10 000, and 20 000 g mol-1 were grafted onto colloidal silica nanoparticles (NPs) of a 27.6 nm diameter using two distinct "grafting to" processes. The first method was based on the coupling reaction of epoxide-end capped MPEO with amine-functionalized silica NPs, while the second method was based on the condensation of triethoxysilane-terminated MPEO onto the unmodified silica NPs. The influence of PEO molecular weight, grafting process and grafting conditions (temperature, reactant concentration, reaction time) on the PEO grafting density was fully investigated. Thermogravimetric analysis (TGA) was used to determine the grafting density which ranged from 0.12 chains per nm2 using the first approach to 1.02 chains per nm2 when using the second approach. 29Si CP/MAS NMR characterization indirectly revealed that above a grafting density value of 0.3 PEO chains per nm2, a dendri-graft PEO network was built around the silica surface which was composed of PEO chains directly anchored to the silica surface and those grafted to silica NPs by intermediate of >CH-O-Si- bonds. The colloidal stability of the particles during different steps of the grafting process was characterized by small-angle X-ray scattering (SAXS). We have found that the colloidal systems are stable whatever the achieved grafting density due to the strong repulsions between the NPs, with the strength of repulsion increasing with the molecular weight of the grafted MPEO chains.
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Affiliation(s)
- Sébastien Issa
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
| | - Fabrice Cousin
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France.
| | - Marine Bonnevide
- Manufacture Française des Pneumatiques MICHELIN, Site de Ladoux, 23 place des Carmes Déchaux, F-63 040 Clermont-Ferrand, Cedex 9, France
| | - Didier Gigmes
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
| | - Jacques Jestin
- Laboratoire Léon Brillouin, UMR 12, Université Paris-Saclay, IRAMIS/CEA Saclay, 91191 Gif-sur-Yvette Cedex, France.
| | - Trang N T Phan
- Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire, UMR 7273-Campus Scientifique St Jérôme, Service 542, 13397 Marseille Cedex 20, France.
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Peng W, Cai Y, Fanslau L, Vana P. Nanoengineering with RAFT polymers: from nanocomposite design to applications. Polym Chem 2021. [DOI: 10.1039/d1py01172c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reversible addition–fragmentation chain-transfer (RAFT) polymerization is a powerful tool for the precise formation of macromolecular building blocks that can be used for the construction of well-defined nanocomposites.
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Affiliation(s)
- Wentao Peng
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Yingying Cai
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Luise Fanslau
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
| | - Philipp Vana
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen, Tammannstrasse 6, 37077 Göttingen, Germany
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Tan J, Zhu H, Cao S, Chen S, Tian Y, Ding D, Zheng X, Hu C, Hu T, Wu C. Preparation and catalytic properties of poly(methyl methacrylate)-supported Pd 0 obtained from room-temperature, dark reduction of ionic aggregates of the unstable Pd 2+ solution ionomer. RSC Adv 2020; 10:43175-43186. [PMID: 35514939 PMCID: PMC9058133 DOI: 10.1039/d0ra08653c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 11/16/2020] [Indexed: 11/21/2022] Open
Abstract
A poly(methyl methacrylate)-supported Pd0 nanocatalyst was successfully prepared from solution reaction of Pd(CH3COO)2 with a copolymer acid, poly(methyl methacrylate-ran-methacrylic acid) (MMA–MAA). The reaction was carried out in a benzene/methanol mixed solvent in the dark at room temperature (∼25 °C) in the absence of a typical chemical reductant. There was coordination between the Pd0 nanoclusters and MMA–MAA, resulting in Pd0 nanoclusters being stably and uniformly dispersed in the MMA–MAA matrix, with an average particle size of ∼2.5 ± 0.5 nm. Mechanistically, it can tentatively be proposed that PMMA-ionomerization of the Pd2+ ions produces intramolecular –2COO−–Pd2+ aggregate cross-links in the solution. On swelling of the chain-segments that are covalently bound via multiple C–C bonds, the resultant elastic forces cause instantaneous dissociation at the O–Pd coordination bonds to give transient bare (i.e., uncoordinated), highly-oxidative Pd2+ ions and H+-associative carboxylate groups, both of which rapidly scavenge electrons and protons, respectively, of the active α-H atoms abstracted from the methanol molecules of the solvent to make Pd0 nanoclusters supported by the re-formed MMA–MAA. The MMA–MAA acid copolymer, without itself undergoing any permanent chemical change, serves as a mechanical activator or catalyst for the mechanochemical reduction of Pd(CH3COO)2 under mild conditions. Compared with traditional Pd/C catalysts, this Pd0 nanocatalyst exhibited more excellent catalytic efficiency and reusability in the Heck reaction between iodobenzene and styrene, and it could be easily separated. The supported Pd0 nanocatalyst prepared using this novel and simple preparation method may display high-efficiency catalytic properties for other cross coupling reactions. A polymer-supported Pd0 nanocatalyst is prepared by using mechanochemical reduction as the driving force for the reaction.![]()
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Affiliation(s)
- Jinqiang Tan
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Huamei Zhu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Shasha Cao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Sisi Chen
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Yuanfu Tian
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Dachuan Ding
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Xuan Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Chuanqun Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Tao Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
| | - Chonggang Wu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Collaborative Innovation Center of Green Light-weight Materials and Processing, School of Materials and Chemical Engineering, Hubei University of Technology Wuhan Hubei Province 430068 P. R. China
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Farjadian F, Ghasemi S, Andami Z, Tamami B. Thermo-responsive nanocarrier based on poly(N-isopropylacrylamide) serving as a smart doxorubicin delivery system. IRANIAN POLYMER JOURNAL 2020. [DOI: 10.1007/s13726-020-00785-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Wang Y, Yang W, Liu X, Lin J, Sun H. Effect of Bonded Interfacial Structure on Mechanical Properties of Polyimide/SiO
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Composites: Molecular Dynamics Simulations. MACROMOL THEOR SIMUL 2019. [DOI: 10.1002/mats.201900045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yu Wang
- Department of Applied ScienceHarbin University of Science and Technology Harbin 150001 P. R. China
| | - Wenlong Yang
- Department of Applied ScienceHarbin University of Science and Technology Harbin 150001 P. R. China
| | - Xinmei Liu
- Department of Applied ScienceHarbin University of Science and Technology Harbin 150001 P. R. China
| | - Jiaqi Lin
- Department of Applied ScienceHarbin University of Science and Technology Harbin 150001 P. R. China
- Key Laboratory of Education of Harbin University of Science and Technology Harbin 150080 P. R. China
| | - Hongguo Sun
- Polymer Composites Engineering LaboratoryChangchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 China
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Rajendran A, Rajendiran M, Yang ZF, Fan HX, Cui TY, Zhang YG, Li WY. Functionalized Silicas for Metal-Free and Metal-Based Catalytic Applications: A Review in Perspective of Green Chemistry. CHEM REC 2019; 20:513-540. [PMID: 31631504 DOI: 10.1002/tcr.201900056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/23/2019] [Indexed: 12/20/2022]
Abstract
Heterogeneous catalysis plays a key role in promoting green chemistry through many routes. The functionalizable reactive silanols highlight silica as a beguiling support for the preparation of heterogeneous catalysts. Metal active sites anchored on functionalized silica (FS) usually demonstrate the better dispersion and stability due to their firm chemical interaction with FSs. Having certain functional groups in structure, FSs can act as the useful catalysts for few organic reactions even without the need of metal active sites which are termed as the covetous reusable organocatalysts. Magnetic FSs have laid the platform where the effortless recovery of catalysts is realized just using an external magnet, resulting in the simplified reaction procedure. Using FSs of multiple functional groups, we can envisage the shortened reaction pathway and, reduced chemical uses and chemical wastes. Unstable bio-molecules like enzymes have been stabilized when they get chemically anchored on FSs. The resultant solid bio-catalysts exhibited very good reusability in many catalytic reactions. Getting provoked from the green chemistry aspects and benefits of FS-based catalysts, we confer the recent literature and progress focusing on the significance of FSs in heterogeneous catalysis. This review covers the preparative methods, types and catalytic applications of FSs. A special emphasis is given to the metal-free FS catalysts, multiple FS-based catalysts and magnetic FSs. Through this review, we presume that the contribution of FSs to green chemistry can be well understood. The future perspective of FSs and the improvements still required for implementing FS-based catalysts in practical applications have been narrated at the end of this review.
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Affiliation(s)
- Antony Rajendran
- Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Marimuthu Rajendiran
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, Maharashtra, India
| | - Zhi-Fen Yang
- Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Hong-Xia Fan
- Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Tian-You Cui
- Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Ya-Gang Zhang
- Department of Chemistry and Chemical Engineering, Xi'an University of Technology, Xi'an, 710054, PR China
| | - Wen-Ying Li
- Training Base of State Key Laboratory of Coal Science and Technology Jointly Constructed by Shanxi Province and Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, P.R. China.,Department of Chemistry and Chemical Engineering, Xi'an University of Technology, Xi'an, 710054, PR China
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Shifrina ZB, Matveeva VG, Bronstein LM. Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites. Chem Rev 2019; 120:1350-1396. [DOI: 10.1021/acs.chemrev.9b00137] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zinaida B. Shifrina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
| | - Valentina G. Matveeva
- Tver State Technical University, Department of Biotechnology and Chemistry, 22 A. Nikitina St, 170026 Tver, Russia
| | - Lyudmila M. Bronstein
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States
- King Abdulaziz University, Faculty of Science, Department of Physics, P.O. Box 80303, Jeddah 21589, Saudi Arabia
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Arica TA, Kuman M, Gercel O, Ayas E. Poly(dopamine) grafted bio-silica composite with tetraethylenepentamine ligands for enhanced adsorption of pollutants. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2018.11.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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