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El Allaoui B, Chakhtouna H, Ouhssain A, Kadmiri IM, Benzeid H, Zari N, Qaiss AEK, Bouhfid R. Silver nanoparticle-decorated cellulose beads: Eco-friendly catalysts for efficient 4-nitrophenol reduction and antibacterial performance. Int J Biol Macromol 2024; 273:133078. [PMID: 38942667 DOI: 10.1016/j.ijbiomac.2024.133078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/26/2024] [Accepted: 06/09/2024] [Indexed: 06/30/2024]
Abstract
This study presents an innovative and environmentally friendly method to produce fibrous cellulose beads by mechanically stirring natural fibers in an aqueous medium. Date palm fibers are transformed into uniform beads with a diameter of 1.5 to 2 mm through chemical treatment and mechanical agitation. These beads are then decorated with silver nanoparticles (Ag0 NPs) in a one-step synthesis, giving them catalytic capabilities for the reduction of 4-nitrophenol (4-NP) and antibacterial activities. Characterization techniques such as FTIR, XRD, SEM, EDX, and TGA confirmed the successful synthesis and deposition of Ag0 NPs on the cellulose beads. Tests showed complete conversion of 4-NP to 4-AP in just 7 min, with pseudo-first-order kinetics and a Kapp of 0.590 min-1. Additionally, Ag0@CB demonstrated exceptional recyclability and stability over five cycles, with minimal silver release. The beads also showed strong antibacterial activity against Escherichia coli and Staphylococcus aureus, effectively eradicating bacterial colonies in 30 min. In summary, Ag0@CB exhibits multifunctional capabilities for degrading organic pollutants and biomedical applications, offering promising potential for large-scale production and practical use in water treatment and antibacterial coatings.
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Affiliation(s)
- Brahim El Allaoui
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Hanane Chakhtouna
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Ali Ouhssain
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Issam Meftah Kadmiri
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Hanane Benzeid
- Laboratoire de Chimie Analytique, Faculté de Médecine et de Pharmacie, Université Mohammed V de Rabat, Rabat, Morocco
| | - Nadia Zari
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Abou El Kacem Qaiss
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Rachid Bouhfid
- Moroccan Foundation of Advanced Science Innovation and Research (MAScIR), Composites and Nanocomposites Center, Rabat Design Center, Madinat Al Irfane, Rabat, Morocco; Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco.
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2
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Kumar S, Sharma A, Mahala S, Gaatha K, Reddy SR, Rom T, Paul AK, Roy P, Joshi H. Macrocyclic Sulfur Ligand Stabilized Trans-Palladium Dichloride Complex: Syntheses, Structure, Chlorine Rotation, and Application in α-Olefination of Nitriles by Primary Alcohols. Chem Asian J 2024; 19:e202300935. [PMID: 38116906 DOI: 10.1002/asia.202300935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/05/2023] [Accepted: 12/18/2023] [Indexed: 12/21/2023]
Abstract
Herein, we have reported the synthesis of a macrocyclic organosulfur ligand (L1) having a seventeen-membered macrocyclic ring. Subsequently, the corresponding trans-palladium complex (C1) of bulky macrocyclic organosulfur ligand (L1) was synthesized by reacting it with PdCl2 (CH3 CN)2 salt. The newly synthesized ligand and complex were characterized using various analytical and spectroscopic techniques. The complex showed a square planar geometry with trans orientation of two ligands around the palladium center. The complex possesses intramolecular SCH…Cl interactions of 2.648 Å between the macrocyclic ligand and palladium dichloride. The potential energy surface (PES) for the rotational process of C1 suggested a barrier of ~23.81 kcal/mol for chlorine rotation. Furthermore, the bulky macrocyclic organosulfur ligand stabilized palladium complex (C1) was used as a catalyst (2.5 mol %) for α-olefination of nitriles by primary alcohols. The α,β-unsaturated nitrile compounds were found to be the major product of the reaction (57-78 % yield) with broad substrate scope and large functional group tolerance. Notably, the saturated nitrile product was not observed during the reaction. The mechanistic studies suggested the formation of H2 and H2 O as only by-products of the reaction, thereby making the protocol greener and sustainable.
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Affiliation(s)
- Sunil Kumar
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Ashutosh Sharma
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Suman Mahala
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - K Gaatha
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - S Rajagopala Reddy
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Tanmay Rom
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, India
| | - Avijit Kumar Paul
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, India
| | - Partha Roy
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Hemant Joshi
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
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3
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Barbazanges M, Gimbert Y, Fensterbank L. Gold-Catalyzed Addition of Propargyl Acetates to Olefins via O-Acyl Migration/Cyclopropanation Sequence: Insight into the Diastereoselective Formation of the Alkene. J Org Chem 2023. [PMID: 36787624 DOI: 10.1021/acs.joc.2c02623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
This article discloses a study on the well-known addition of propargyl acetates to olefins via an O-acyl migration/cyclopropanation sequence. Herein, we show that the stereochemical outcome of the olefin is strongly dependent on the gold catalyst and reaction parameters (concentration, temperature, and alkene partner equivalents); the E- and Z-isomers can be selectively formed by the judicious choice of reaction conditions.
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Affiliation(s)
- Marion Barbazanges
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Yves Gimbert
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France.,Département de Chimie Moléculaire (UMR CNRS 5250), Université Grenoble Alpes, F-38050 Grenoble, France
| | - Louis Fensterbank
- Institut Parisien de Chimie Moléculaire, Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (UMR CNRS 8232), 4 Place Jussieu, 75252 Paris Cedex 05, France
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4
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Paterson R, Alharbi AA, Wills C, Dixon C, Šiller L, Chamberlain TW, Griffiths A, Collins SM, Wu K, Simmons MD, Bourne RA, Lovelock KR, Seymour J, Knight JG, Doherty S. Heteroatom modified polymer immobilized ionic liquid stabilized ruthenium nanoparticles: Efficient catalysts for the hydrolytic evolution of hydrogen from sodium borohydride. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Zhang H, Choi JI, Choi JW, Jeong SM, Lee PS, Hong DY. A highly porous MgAl2O4 spinel-supported Mn3O4 as a reusable catalyst for glycolysis of postconsumer PET waste. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Mohamed‐Ibrahim NAB, Kheng Boong S, Zhong Ang Z, Shiuan Ng L, Tan JYC, Chong C, Kwee Lee H. Applying Magnetic‐Responsive Nanocatalyst‐Liquid Interface for Active Molecule Manipulation to Boost Catalysis Beyond Diffusion Limit. ChemCatChem 2022. [DOI: 10.1002/cctc.202200036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nur Amalina binte Mohamed‐Ibrahim
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Siew Kheng Boong
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Zhi Zhong Ang
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Li Shiuan Ng
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Jia Ying Charlene Tan
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Carice Chong
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
| | - Hiang Kwee Lee
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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7
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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8
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Karakhanov E, Maximov A, Zolotukhina A. Heterogeneous Dendrimer-Based Catalysts. Polymers (Basel) 2022; 14:981. [PMID: 35267800 PMCID: PMC8912888 DOI: 10.3390/polym14050981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
The present review compiles the advances in the dendritic catalysis within the last two decades, in particular concerning heterogeneous dendrimer-based catalysts and their and application in various processes, such as hydrogenation, oxidation, cross-coupling reactions, etc. There are considered three main approaches to the synthesis of immobilized heterogeneous dendrimer-based catalysts: (1) impregnation/adsorption on silica or carbon carriers; (2) dendrimer covalent grafting to various supports (silica, polystyrene, carbon nanotubes, porous aromatic frameworks, etc.), which may be performed in a divergent (as a gradual dendron growth on the support) or convergent way (as a grafting of whole dendrimer to the support); and (3) dendrimer cross-linking, using transition metal ions (resulting in coordination polymer networks) or bifunctional organic linkers, whose size, polarity, and rigidity define the properties of the resulted material. Additionally, magnetically separable dendritic catalysts, which can be synthesized using the three above-mentioned approaches, are also considered. Dendritic catalysts, synthesized in such ways, can be stored as powders and be easily separated from the reaction medium by filtration/centrifugation as traditional heterogeneous catalysts, maintaining efficiency as for homogeneous dendritic catalysts.
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Affiliation(s)
- Eduard Karakhanov
- Department of Petroleum Chemistry and Organic Catalysis, Moscow State University, 119991 Moscow, Russia;
| | - Anton Maximov
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
| | - Anna Zolotukhina
- Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia;
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9
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Zhu Q, Murphy CJ, Baker LR. Opportunities for Electrocatalytic CO 2 Reduction Enabled by Surface Ligands. J Am Chem Soc 2022; 144:2829-2840. [PMID: 35137579 DOI: 10.1021/jacs.1c11500] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To achieve high selectivity in enzyme catalysis, nature carefully controls both the catalyst active site and the pocket or environment that mediates access and the geometry of a reactant. Despite the many advantages of heterogeneous catalysis, active sites on a surface are rarely defined with atomic precision, making it difficult to control reaction selectivity with the molecular precision of homogeneous systems. In colloidal nanoparticle synthesis, structural control is accomplished using a surface ligand or capping layer that stabilizes a specific particle morphology and prevents nanoparticle aggregation. Usually, these surface ligands are considered detrimental for catalysis because they occupy otherwise active surface sites. However, a number of examples have shown that surface ligands can play a beneficial role in defining the catalytic environment and enhancing performance by a variety of mechanisms. This perspective summarizes recent advances and opportunities using surface ligands to enhance the performance of nanocatalysts for electrochemical CO2 reduction. Several mechanisms are discussed, including selective permeability, modulating interfacial solvation structure and electric fields, chemical activation, and templating active site selection. These examples inform strategies and point to emerging opportunities to design nanocatalysts toward molecular level control of electrochemical CO2 conversion.
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Affiliation(s)
- Quansong Zhu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - L Robert Baker
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
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10
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Khan MU, Khan SU, Kiriratnikom J, Zareen S, Zhang X. CoCo-PBA/tetrabutylammonium bromide as highly efficient catalyst for CO2 and epoxides coupling reaction under mild conditions. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Poovan F, Chandrashekhar V, Natte K, Rajenahally J. Synergy between homogeneous and heterogeneous catalysis. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00232a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalysis plays a decisive role in the advancement of sustainable processes in chemical, pharmaceutical, and agrochemical industries as well as petrochemical, material, and energy technologies. Notably, more than 80% of...
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12
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Wu H, Yang J, Peters BBC, Massaro L, Zheng J, Andersson PG. Asymmetric Full Saturation of Vinylarenes with Cooperative Homogeneous and Heterogeneous Rhodium Catalysis. J Am Chem Soc 2021; 143:20377-20383. [PMID: 34807592 PMCID: PMC8662739 DOI: 10.1021/jacs.1c09975] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
Homogeneous and heterogeneous
catalyzed reactions can seldom operate
synergistically under the same conditions. Here we communicate the
use of a single rhodium precursor that acts in both the homogeneous
and heterogeneous phases for the asymmetric full saturation of vinylarenes
that, to date, constitute an unmet bottleneck in the field. A simple
asymmetric hydrogenation of a styrenic olefin, enabled by a ligand
accelerated effect, accounted for the facial selectivity in the consecutive
arene hydrogenation. Tuning the ratio between the phosphine ligand
and the rhodium precursor controlled the formation of homogeneous
and heterogeneous catalytic species that operate without interference
from each other. The system is flexible in terms of both the chiral
ligand and the nature of the external olefin. We anticipate that our
findings will promote the development of asymmetric arene hydrogenations.
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Affiliation(s)
- Haibo Wu
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Jianping Yang
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Bram B C Peters
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Luca Massaro
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Jia Zheng
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden
| | - Pher G Andersson
- Department of Organic Chemistry, Stockholm University, Svante Arrhenius väg 16C, SE-10691 Stockholm, Sweden.,School of Chemistry and Physics, University of Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa
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13
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Fang MH, Wu SY, Chang YH, Narwane M, Chen BH, Liu WL, Kurniawan D, Chiang WH, Lin CH, Chuang YC, Hsu IJ, Chen HT, Lu TT. Mechanistic Insight into the Synergetic Interaction of Ammonia Borane and Water on ZIF-67-Derived Co@Porous Carbon for Controlled Generation of Dihydrogen. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47465-47477. [PMID: 34592812 DOI: 10.1021/acsami.1c11521] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Regarding dihydrogen as a clean and renewable energy source, ammonia borane (NH3BH3, AB) was considered as a chemical H2-storage and H2-delivery material due to its high storage capacity of dihydrogen (19.6 wt %) and stability at room temperature. To advance the development of efficient and recyclable catalysts for hydrolytic dehydrogenation of AB with parallel insight into the reaction mechanism, herein, ZIF-67-derived fcc-Co@porous carbon nano/microparticles (cZIF-67_nm/cZIF-67_μm) were explored to promote catalytic dehydrogenation of AB and generation of H2(g). According to kinetic and computational studies, zero-order dependence on the concentration of AB, first-order dependence on the concentration of cZIF-67_nm (or cZIF-67_μm), and a kinetic isotope effect value of 2.45 (or 2.64) for H2O/D2O identify the Co-catalyzed cleavage of the H-OH bond, instead of the H-BH2NH3 bond, as the rate-determining step in the hydrolytic dehydrogenation of AB. Despite the absent evolution of H2(g) in the reaction of cZIF-67 and AB in the organic solvents (i.e., THF or CH3OH) or in the reaction of cZIF-67 and water, Co-mediated activation of AB and formation of a Co-H intermediate were evidenced by theoretical calculation, infrared spectroscopy in combination with an isotope-labeling experiment, and reactivity study toward CO2-to-formate/H2O-to-H2 conversion. Moreover, the computational study discovers a synergistic interaction between AB and the water cluster (H2O)9 on fcc-Co, which shifts the splitting of water into an exergonic process and lowers the thermodynamic barrier for the generation and desorption of H2(g) from the Co-H intermediates. With the kinetic and mechanistic study of ZIF-67-derived Co@porous carbon for catalytic hydrolysis of AB, the spatiotemporal control on the generation of H2(g) for the treatment of inflammatory diseases will be further investigated in the near future.
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Affiliation(s)
- Min-Hsuan Fang
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shiuan-Yau Wu
- Department of Chemistry and R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Yu-Hsiang Chang
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Manmath Narwane
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Bo-Hao Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Wei-Ling Liu
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Darwin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chia-Her Lin
- Department of Chemistry, National Taiwan Normal University, Taipei 11677, Taiwan
| | - Yu-Chun Chuang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - I-Jui Hsu
- Department of Molecular Science and Engineering, Research and Development Center of Smart Textile Technology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Hsin-Tsung Chen
- Department of Chemistry and R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Tsai-Te Lu
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
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14
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Luo K, Li Y, Fu Z, Zhang L, Wang Z, Xu J, Yu B, Wu L. Transition‐Metal‐Free Cascade Enyne Rearrangement and Cyclopropanation of Allenylphosphine Oxides with
N
‐Tosylhydrazones Accessing Alkynylcyclopropane Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kai Luo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Yuan Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Zitong Fu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Ling Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Zhipeng Wang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Jiangyan Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Bingjun Yu
- Lab of Plant Stress Biology, College of Life Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences Nanjing Agricultural University Nanjing 210095 People's Republic of China
- College of Chemical Engineering Xinjiang Agricultural University Urumqi 830052 People's Republic of China
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15
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Yang F, Backov R, Blin JL, Fáklya B, Tron T, Mekmouche Y. Site directed confinement of laccases in a porous scaffold towards robustness and selectivity. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 31:e00645. [PMID: 34189063 PMCID: PMC8219655 DOI: 10.1016/j.btre.2021.e00645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 10/31/2022]
Abstract
We immobilized a fungal laccase with only two spatially close lysines available for functionalization into macrocellular Si(HIPE) monoliths for the purpose of continuous flow catalysis. Immobilization (30-45 % protein immobilization yields) was obtained using a covalent bond forming reaction between the enzyme and low glutaraldehyde (0.625 % (w/w)) functionalized foams. Testing primarily HBT-mediated RB5 dye decolorization in continuous flow reactors, we show that the activity of the heterogeneous catalyst is comparable to its homogeneous counterpart. More, its operational activity remains as high as 60 % after twelve consecutive decolorization cycles as well as after one-year storage, performances remarkable for such a material. We further immobilized two variants of the laccase containing a unique lysine: one located in the vicinity of the substrate oxidation site (K157) and one at the opposite side of this oxidation site (K71) to study the effect of the proximity of the Si(HIPE) surface on enzyme activity. Comparing activities on different substrates for monoliths with differentially oriented catalysts, we show a twofold discrimination for ABTS relative to ascorbate. This study provides ground for the development of neo-functionalized materials that beyond allowing stability and reusability will become synergic partners in the catalytic process.
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Key Words
- ABTS, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid
- APTES, (3-Aminopropyl)triethoxysilane
- Asc, ascorbic acid
- BET, Brunauer, Emmett et Teller
- DPBS, Dulbecco's Phosphate-Buffered Saline, pH 7.0
- Enz., enzyme
- HBT, N-Hydroxy benzotriazole
- HIPE, High Internal Phase Emulsion
- Heterogeneous catalysis
- Laccase
- Orientation
- RB5, Reactive black 5
- RBBR, Remazol Brilliant Blue B
- S.A., specific activity
- Site-directed immobilization
- TEOS, Tetraethyl-orthosilane
- TNC, TriNuclear Cluster
- TTAB, tetradecyltrimethylammonium bromide
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Affiliation(s)
- Fangfang Yang
- Aix Marseille Univ, Centrale Marseille, CNRS, iSm2, Marseille, France
| | - Rénal Backov
- Université de Bordeaux, CNRS, CRPP, UMR5031, 115 Avenue Albert Schweitzer, F-33600, Pessac, France
| | - Jean-Luc Blin
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
| | - Bernadett Fáklya
- Aix Marseille Univ, Centrale Marseille, CNRS, iSm2, Marseille, France
| | - Thierry Tron
- Aix Marseille Univ, Centrale Marseille, CNRS, iSm2, Marseille, France
| | - Yasmina Mekmouche
- Aix Marseille Univ, Centrale Marseille, CNRS, iSm2, Marseille, France
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16
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Ezazi AA, Gao W, Powers DC. Leveraging Exchange Kinetics for the Synthesis of Atomically Precise Porous Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202002034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Andrew A. Ezazi
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
| | - Wen‐Yang Gao
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
- Department of Chemistry New Mexico Institute of Mining and Technology Socorro NM 87801 USA
| | - David C. Powers
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
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17
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Singh B, Sharma V, Gaikwad RP, Fornasiero P, Zbořil R, Gawande MB. Single-Atom Catalysts: A Sustainable Pathway for the Advanced Catalytic Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006473. [PMID: 33624397 DOI: 10.1002/smll.202006473] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/29/2020] [Indexed: 06/12/2023]
Abstract
A heterogeneous catalyst is a backbone of modern sustainable green industries; and understanding the relationship between its structure and properties is the key for its advancement. Recently, many upscaling synthesis strategies for the development of a variety of respectable control atomically precise heterogeneous catalysts are reported and explored for various important applications in catalysis for energy and environmental remediation. Precise atomic-scale control of catalysts has allowed to significantly increase activity, selectivity, and in some cases stability. This approach has proved to be relevant in various energy and environmental related technologies such as fuel cell, chemical reactors for organic synthesis, and environmental remediation. Therefore, this review aims to critically analyze the recent progress on single-atom catalysts (SACs) application in oxygen reduction reaction, oxygen evolution reaction, hydrogen evolution reaction, and chemical and/or electrochemical organic transformations. Finally, opportunities that may open up in the future are summarized, along with suggesting new applications for possible exploitation of SACs.
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Affiliation(s)
- Baljeet Singh
- CICECO-Aveiro Institute of Materials, University of Aveiro, Department of Chemistry, Aveiro, 3810-193, Portugal
| | - Vikas Sharma
- Centre for Converging Technologies, University of Rajasthan, Jaipur, 302004, India
| | - Rahul P Gaikwad
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna, Maharashtra, 431213, India
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, INSTM Trieste Research Unit and ICCOM-CNR Trieste Research Unit, University of Trieste, Trieste, I-34127, Italy
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Palacky University, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
- Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna, Maharashtra, 431213, India
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18
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Tong F, Liang X, Ma F, Bao X, Wang Z, Liu Y, Wang P, Cheng H, Dai Y, Huang B, Zheng Z. Plasmon-Mediated Nitrobenzene Hydrogenation with Formate as the Hydrogen Donor Studied at a Single-Particle Level. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00164] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fengxia Tong
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Xizhuang Liang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Fahao Ma
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Xiaolei Bao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Ying Dai
- School of Physics, Shandong University, Jinan 250100, China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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19
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Ju Y, Ro HJ, Yi YS, Cho T, Kim SI, Yoon CW, Jun S, Kim J. Three-Dimensional TEM Study of Dendrimer-Encapsulated Pt Nanoparticles for Visualizing Structural Characteristics of the Whole Organic-Inorganic Hybrid Nanostructure. Anal Chem 2021; 93:2871-2878. [PMID: 33455155 DOI: 10.1021/acs.analchem.0c04264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Here, we report three-dimensional (3-D) visualization of dendrimer-encapsulated Pt nanoparticles (Pt DENs) by using 3-D electron tomography to reveal intricate structural characteristics of their whole organic-inorganic hybrid nanostructure. We reconstructed the 3-D spatial volume of Pt DENs by back-projecting a tilt series of two-dimensional (2-D) projections of Pt nanoparticles encapsulated inside dendrimers negatively stained with uranyl acetate. The direct 3-D visualization of Pt DENs elucidated their encapsulation characteristics with the spatial imaging of Pt nanoparticles embraced inside dendrimers in three dimensions. The encapsulation characteristics of Pt DENs were further verified with selective electrochemical poisoning experiments. In addition, quantitative 3-D structural characterization of Pt DENs provided more accurate and precise size distributions of nanoparticles than those obtained from conventional 2-D transmission electron microscopy analysis relying only on a 3-D structure projected on a 2-D plane.
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Affiliation(s)
- Youngwon Ju
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun-Joo Ro
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Yoon-Sun Yi
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Taehoon Cho
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Seung Il Kim
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Chang Won Yoon
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul 02447, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sangmi Jun
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea.,Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea
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20
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Lee SW, Kim JM, Park W, Lee H, Lee GR, Jung Y, Jung YS, Park JY. Controlling hot electron flux and catalytic selectivity with nanoscale metal-oxide interfaces. Nat Commun 2021; 12:40. [PMID: 33397946 PMCID: PMC7782808 DOI: 10.1038/s41467-020-20293-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 11/18/2020] [Indexed: 11/10/2022] Open
Abstract
Interaction between metal and oxides is an important molecular-level factor that influences the selectivity of a desirable reaction. Therefore, designing a heterogeneous catalyst where metal-oxide interfaces are well-formed is important for understanding selectivity and surface electronic excitation at the interface. Here, we utilized a nanoscale catalytic Schottky diode from Pt nanowire arrays on TiO2 that forms a nanoscale Pt-TiO2 interface to determine the influence of the metal-oxide interface on catalytic selectivity, thereby affecting hot electron excitation; this demonstrated the real-time detection of hot electron flow generated under an exothermic methanol oxidation reaction. The selectivity to methyl formate and hot electron generation was obtained on nanoscale Pt nanowires/TiO2, which exhibited ~2 times higher partial oxidation selectivity and ~3 times higher chemicurrent yield compared to a diode based on Pt film. By utilizing various Pt/TiO2 nanostructures, we found that the ratio of interface to metal sites significantly affects the selectivity, thereby enhancing chemicurrent yield in methanol oxidation. Density function theory (DFT) calculations show that formation of the Pt-TiO2 interface showed that selectivity to methyl formate formation was much larger in Pt nanowire arrays than in Pt films because of the different reaction mechanism.
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Affiliation(s)
- Si Woo Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jong Min Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Woonghyeon Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyosun Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Korea Institute of Industrial Technology (KITECH), Intelligent Sustainable Material R&D Group, Cheonan, 31056, Republic of Korea
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Yousung Jung
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea.
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
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21
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Comparative Study of Homogeneous and Silica Immobilized N^N and N^O Palladium(II) Complexes as Catalysts for Hydrogenation of Alkenes, Alkynes and Functionalized Benzenes. Catal Letters 2020. [DOI: 10.1007/s10562-020-03192-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Wang K, Zhao W, Zhang Q, Li H, Zhang F. In Situ One-Step Synthesis of Platinum Nanoparticles Supported on Metal-Organic Frameworks as an Effective and Stable Catalyst for Selective Hydrogenation of 5-Hydroxymethylfurfural. ACS OMEGA 2020; 5:16183-16188. [PMID: 32656440 PMCID: PMC7346239 DOI: 10.1021/acsomega.0c01759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
A facile in situ one-step route for the preparation of platinum nanoparticles supported on metal-organic frameworks (MOFs) without adding stabilizing agents was developed. The obtained 10% Pt@MOF-T3 material possessed a large surface area and high crystallinity. Meanwhile, uniform and well-dispersed platinum nanoparticles were formed inside the cavities of MOFs, which could be attributed to the efficient complexation and stabilization effect derived from the dipyridyl groups. The as-synthesized 10% Pt@MOF-T3 sample showed high activity and selectivity in the hydrogenation of 5-hydroxymethylfurfural (HMF). This excellent catalytic performance could be attributed to the synergistic effects of well-dispersed platinum nanoparticles and electron donation offered by MOFs. Meanwhile, the presence of bipyridine ligands in the MOF framework avoided the irreversible adsorption of the hydrocarbon compounds, leading to the enhanced catalytic efficiency. Besides, it was easily recycled and reused at least five times, showing good recyclability.
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Affiliation(s)
- Kaixuan Wang
- School
of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- The
Education Ministry Key Lab of Resource Chemistry and Shanghai Key
Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Weiliang Zhao
- The
Education Ministry Key Lab of Resource Chemistry and Shanghai Key
Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Qingxiao Zhang
- The
Education Ministry Key Lab of Resource Chemistry and Shanghai Key
Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Hexing Li
- School
of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- The
Education Ministry Key Lab of Resource Chemistry and Shanghai Key
Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Fang Zhang
- The
Education Ministry Key Lab of Resource Chemistry and Shanghai Key
Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
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23
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Affiliation(s)
- Chuanbo Gao
- Center for Materials Chemistry, Frontier Institute of Science and Technology, and State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710054, China
| | - Fenglei Lyu
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
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24
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Gupta S, Biswas P. Orientational Relaxation of Poly(propylene imine) Dendrimers at Different pH. J Phys Chem B 2020; 124:4193-4202. [PMID: 32319292 DOI: 10.1021/acs.jpcb.0c00536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dilute solution dynamics of poly(propylene imine) (PPI) dendrimers is investigated at three different solution pH through molecular dynamics (MD) simulations. The dynamics of PPI dendrimers is characterized by both global and local relaxations that occur at different time and length scales. While the global dynamics may be described in terms of rotational diffusion, the local motion may be characterized through orientational relaxation dynamics measured in terms of the time autocorrelation function (ACF), second-order orientational ACF, and the spin-lattice relaxation rate. The global motion of dendrimers decreases with an increase in the size from high pH to low pH with increasing generations of growth. The results reveal that the segments at low pH relax faster than those at high pH, and the local mobility of the segments near the periphery is higher than the core segments. This observation is also evident from the spectral density and spin-lattice relaxation rate. High values of the spectral density at higher frequencies imply higher segmental mobility of the dendrimer at low pH relative to that at high pH. A shift in the maximum of the spin-lattice relaxation rate toward lower frequencies with decreasing generations indicates the dependence of local mobility on the topological distance of the segment from the periphery at all pH conditions.
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Affiliation(s)
- Shilpa Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Parbati Biswas
- Department of Chemistry, University of Delhi, Delhi 110007, India
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25
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Miyamura H, Kobayashi S. Nanoparticle Catalysts in Flow Systems. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Precise Synthesis of Nanoparticles and Their Catalytic Behavior. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Picher MI, Plietker B. Fe-Catalyzed Selective Cyclopropanation of Enynes under Photochemical or Thermal Conditions. Org Lett 2019; 22:340-344. [DOI: 10.1021/acs.orglett.9b04521] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marie-Idrissa Picher
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, DE-70569 Stuttgart, Germany
| | - Bernd Plietker
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, DE-70569 Stuttgart, Germany
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28
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Magnetic mesoporous poly-melamine–formaldehyde: an efficient and recyclable catalyst for straightforward one-pot synthesis of imidazo[1,2-a]pyridines. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01705-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Yamamoto K, Imaoka T, Tanabe M, Kambe T. New Horizon of Nanoparticle and Cluster Catalysis with Dendrimers. Chem Rev 2019; 120:1397-1437. [DOI: 10.1021/acs.chemrev.9b00188] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Takane Imaoka
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- PRESTO-JST, Kawaguchi 332-0012, Japan
| | - Makoto Tanabe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Tetsuya Kambe
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan
- ERATO-JST Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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30
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Watson BR, Doughty B, Calhoun TR. Energetics at the Surface: Direct Optical Mapping of Core and Surface Electronic Structure in CdSe Quantum Dots Using Broadband Electronic Sum Frequency Generation Microspectroscopy. NANO LETTERS 2019; 19:6157-6165. [PMID: 31368312 DOI: 10.1021/acs.nanolett.9b02201] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Understanding and controlling the electronic structure of nanomaterials is the key to tailoring their use in a wide range of practical applications. Despite this need, many important electronic states are invisible to conventional optical measurements and are typically identified indirectly based on their inferred impact on luminescence properties. This is especially common and important in the study of nanomaterial surfaces and their associated defects. Surface trap states play a crucial role in photophysical processes yet remain remarkably poorly understood. Here we demonstrate for the first time that broadband electronic sum frequency generation (eSFG) microspectroscopy can directly map the optically bright and dark states of nanoparticles, including the elusive below gap states. This new approach is applied to model cadmium selenide (CdSe) quantum dots (QDs), where the energies of surface trap states have eluded direct optical characterization for decades. Our eSFG measurements show clear signatures of electronic transitions both above the band gap, which we assign to previously reported one- and two-photon transitions associated with the CdSe core, as well as broad spectral signatures below the band gap that are attributed to surface states. In addition to the core states, this analysis reveals two distinct distributions of below gap states, providing the first direct optical measurement of both shallow and deep surface states on this system. Finally, chemical modification of the surfaces via oxidation results in the relative increase in the signals originating from the surface states. Overall, our eSFG experiments provide an avenue to directly map the entirety of the QD core and surface electronic structure, which is expected to open up opportunities to study how these materials are grown in situ and how surface states can be controlled to tune functionality.
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Affiliation(s)
- Brianna R Watson
- Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Benjamin Doughty
- Chemical Sciences Division , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
| | - Tessa R Calhoun
- Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States
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31
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Carletto A, Badyal JPS. Ultra-high selectivity pulsed plasmachemical deposition reaction pathways. Phys Chem Chem Phys 2019; 21:16468-16476. [PMID: 31321394 DOI: 10.1039/c9cp02192b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glycidyl methacrylate pulsed plasmas have been investigated using time-resolved in situ mass spectrometry. At low pulsed plasma duty cycles, monomer fragmentation leading to the formation of polymerisation initiator species occurs within each short electrical discharge pulse (ton = microseconds timescale). This is followed by conventional step-wise monomer addition polymerisation occurring during the subsequent extended off-period (toff = milliseconds timescale), culminating in the growth of well-defined poly(glycidyl methacrylate) chains. Key attributes associated with this high selectivity pulsed plasmachemical functional thin film synthesis approach are the absence of the requirement for any additional chemicals (catalyst, solvent, etc.) in combination with very low power consumption (mW) and ambient temperature.
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Affiliation(s)
- Andrea Carletto
- Chemistry Department, Science Laboratories, Durham University, Durham DH1 3LE, England, UK.
| | - Jas Pal S Badyal
- Chemistry Department, Science Laboratories, Durham University, Durham DH1 3LE, England, UK.
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32
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Lee SW, Park W, Lee H, Chan Song H, Jung Y, Park JY. Intrinsic Relation between Hot Electron Flux and Catalytic Selectivity during Methanol Oxidation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02402] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Si Woo Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Woonghyeon Park
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hyosun Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Hee Chan Song
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yousung Jung
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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33
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Ahmed HB, Emam HE. Synergistic catalysis of monometallic (Ag, Au, Pd) and bimetallic (Ag Au, Au Pd) versus trimetallic (Ag-Au-Pd) nanostructures effloresced via analogical techniques. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110975] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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34
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Peiris E, Sarina S, Waclawik ER, Ayoko GA, Han P, Jia J, Zhu H. Plasmonic Switching of the Reaction Pathway: Visible‐Light Irradiation Varies the Reactant Concentration at the Solid–Solution Interface of a Gold–Cobalt Catalyst. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904452] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Erandi Peiris
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Sarina Sarina
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Eric R. Waclawik
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Godwin A. Ayoko
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Pengfei Han
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Jianfeng Jia
- School of Chemical and Material Science Shanxi Normal University Linfen 041004 P. R. China
| | - Huai‐Yong Zhu
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
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35
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Peiris E, Sarina S, Waclawik ER, Ayoko GA, Han P, Jia J, Zhu H. Plasmonic Switching of the Reaction Pathway: Visible‐Light Irradiation Varies the Reactant Concentration at the Solid–Solution Interface of a Gold–Cobalt Catalyst. Angew Chem Int Ed Engl 2019; 58:12032-12036. [DOI: 10.1002/anie.201904452] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Erandi Peiris
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Sarina Sarina
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Eric R. Waclawik
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Godwin A. Ayoko
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Pengfei Han
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
| | - Jianfeng Jia
- School of Chemical and Material Science Shanxi Normal University Linfen 041004 P. R. China
| | - Huai‐Yong Zhu
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology 2 George Street Brisbane 4001 Australia
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36
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Deimel PS, Feulner P, Barth JV, Allegretti F. Spatial decoupling of macrocyclic metal-organic complexes from a metal support: a 4-fluorothiophenol self-assembled monolayer as a thermally removable spacer. Phys Chem Chem Phys 2019; 21:10992-11003. [PMID: 31106802 DOI: 10.1039/c9cp01583c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The precise control over the electronic properties and function of metal centres in metal-organic complexes such as metallo-porphyrins (MPs) and metallo-phthalocyanines (MPcs) holds promise for their targeted application in, e.g., nanoscale chemical conversion devices and molecular sensors. However, when immobilizing these flat chelate complexes on solid supports, the influence of the latter on the metal centres can decisively alter their chemistry and functional properties, e.g. through charge transfer and orbital hybridization on metal substrates. In the present work we explore a simple strategy to both spatially and electronically decouple prototypical MP and MPc compounds from a Ag(111) surface, by preventing direct physical contact with the underlying support via insertion of a self-assembled monolayer (SAM) of 4-fluorothiophenol (4-FTP). This spacer layer can be important to preserve the molecular properties of adsorbed MPs and MPcs and to design hybrid functional systems of increasing sophistication such as stacked multilayer architectures. Herein, we show that at low temperature (∼150 K) the 4-FTP SAM on Ag(111) can indeed serve to decouple iron-phthalocyanine (FePc) and ruthenium-tetraphenylporphyrin (Ru(CO)TPP) monolayers from the Ag(111) surface. When the temperature is increased, however, the system's configuration breaks down, resulting in an inverted stacking followed by the complete removal of 4-FTP at elevated temperatures. The SAM can thus play the role of a thermally removable spacer. We elucidate the structural and chemical evolution of the organic double-layer system by combination of X-ray photoelectron spectroscopy (XPS), temperature-programmed XPS (TP-XPS), temperature-programmed desorption (TPD), and low-energy electron diffraction (LEED) measurements.
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Affiliation(s)
- Peter S Deimel
- Physics Department E20, Technical University of Munich, 85748 Garching, Germany.
| | - Peter Feulner
- Physics Department E20, Technical University of Munich, 85748 Garching, Germany.
| | - Johannes V Barth
- Physics Department E20, Technical University of Munich, 85748 Garching, Germany.
| | - Francesco Allegretti
- Physics Department E20, Technical University of Munich, 85748 Garching, Germany.
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37
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Efficient “Click”‐Dendrimer‐Supported Synergistic Bimetallic Nanocatalysis for Hydrogen Evolution by Sodium Borohydride Hydrolysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201900246] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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38
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Sarkar C, Pendem S, Shrotri A, Dao DQ, Pham Thi Mai P, Nguyen Ngoc T, Chandaka DR, Rao TV, Trinh QT, Sherburne MP, Mondal J. Interface Engineering of Graphene-Supported Cu Nanoparticles Encapsulated by Mesoporous Silica for Size-Dependent Catalytic Oxidative Coupling of Aromatic Amines. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11722-11735. [PMID: 30838855 DOI: 10.1021/acsami.8b18675] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, graphene nanosheet-supported ultrafine Cu nanoparticles (NPs) encapsulated with thin mesoporous silica (Cu-GO@m-SiO2) materials are fabricated with particle sizes ranging from 60 to 7.8 nm and are systematically investigated for the oxidative coupling of amines to produce biologically and pharmaceutically important imine derivatives. Catalytic activity remarkably increased from 76.5% conversion of benzyl amine for 60 nm NPs to 99.3% conversion and exclusive selectivity of N-benzylidene-1-phenylmethanamine for 7.8 nm NPs. The superior catalytic performance along with the outstanding catalyst stability of newly designed catalysts are attributed to the easy diffusion of organic molecules through the porous channel of mesoporous SiO2 layers, which not only restricts the restacking of the graphene nanosheets but also prevents the sintering and leaching of metal NPs to an extreme extent through the nanoconfinement effect. Density functional theory calculations were performed to shed light on the reaction mechanism and to give insight into the trend of catalytic activity observed. The computed activation barriers of all elementary steps are very high on terrace Cu(111) sites, which dominate the large-sized Cu NPs, but are significantly lower on step sites, which are presented in higher density on smaller-sized Cu NPs and could explain the higher activity of smaller Cu-GO@m-SiO2 samples. In particular, the activation barrier for the elementary coupling reaction is reduced from 139 kJ/mol on flat terrace Cu(111) sites to the feasible value of 94 kJ/mol at step sites, demonstrating the crucial role of the step site in facilitating the formation of secondary imine products.
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Affiliation(s)
- Chitra Sarkar
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Saikiran Pendem
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Abhijit Shrotri
- Institute for Catalysis , Hokkaido University , Kita 21 Nishi 10 , Kita-Ku, Sapporo 001-0021 , Japan
| | - Duy Quang Dao
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
| | | | | | - Dhanunjaya Rao Chandaka
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Tumula Venkateshwar Rao
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
| | - Quang Thang Trinh
- Institute of Research and Development , Duy Tan University , 03 Quang Trung , Danang 550000 , Vietnam
- Cambridge Centre for Advanced Research and Education in Singapore (CARES) , Campus for Research Excellence and Technological Enterprise (CREATE) , 1 Create Way , 138602 , Singapore
| | - Matthew P Sherburne
- A Singapore Berkeley Research Initiative for Sustainable Energy , Berkeley Educational Alliance for Research in Singapore , 1 Create Way , 138602 , Singapore
- Materials Science and Engineering Department , University of California, Berkeley , Berkeley , California 94720 , United States
| | - John Mondal
- Catalysis & Fine Chemicals Division , CSIR-Indian Institute of Chemical Technology , Uppal Road , Hyderabad 500007 , India
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39
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Zoloff Michoff ME, Ribas-Arino J, Marx D. Selective Nanomechanics of Aromatic versus Aliphatic Thiolates on Gold Surfaces. PHYSICAL REVIEW LETTERS 2019; 122:086801. [PMID: 30932588 DOI: 10.1103/physrevlett.122.086801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 12/23/2018] [Indexed: 06/09/2023]
Abstract
Thiolated gold nanointerfaces play a key role in numerous fields of science, technology, as well as modern medicine to coat, functionalize, and protect. Our computational study reveals that the mechanical vs thermal stabilities of aliphatic thiolates on gold surfaces are strikingly different from those of aromatic thiolates. The aliphatic thiolates feature, at the same time, a higher thermal desorption energy but a lower mechanical rupture force than thiophenolates. Our analysis discloses that this most counterintuitive property is due to different mechanochemical detachment mechanisms. Electronic structure analyses along the detachment pathways trace this back to the distinct electronic properties of the S─Au bond in stretched nanojunctions. The discoveries that it is a higher thermal stability that entails a lower mechanical stability and that mechanical loads generate different local nanostructures depending on the nature of the thiolate are highly relevant for the rational design of improved thiol-gold nanocontacts.
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Affiliation(s)
| | - Jordi Ribas-Arino
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
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40
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Luo C, Fu F, Yang X, Wei J, Wang C, Zhu J, Huang D, Astruc D, Zhao P. Highly Efficient and Selective Co@ZIF‐8 Nanocatalyst for Hydrogen Release from Sodium Borohydride Hydrolysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201900051] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Chun Luo
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
| | - Fangyu Fu
- ISM, UMR CNRS No. 5255Univ. Bordeaux 33405 Talence Cedex France
| | - Xiaojiao Yang
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
| | - Jianyu Wei
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
| | - Changlong Wang
- ISM, UMR CNRS No. 5255Univ. Bordeaux 33405 Talence Cedex France
| | - Jing Zhu
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
| | - Deshun Huang
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
| | - Didier Astruc
- ISM, UMR CNRS No. 5255Univ. Bordeaux 33405 Talence Cedex France
| | - Pengxiang Zhao
- Institute of MaterialsChina Academy of Engineering Physics No. 9, Huafengxincun Jiangyou City, Sichuan Province 621908 P. R. China
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41
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Zhang X, Hou Y, Ettelaie R, Guan R, Zhang M, Zhang Y, Yang H. Pickering Emulsion-Derived Liquid-Solid Hybrid Catalyst for Bridging Homogeneous and Heterogeneous Catalysis. J Am Chem Soc 2019; 141:5220-5230. [PMID: 30776224 DOI: 10.1021/jacs.8b11860] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We describe a novel method to prepare a liquid-solid hybrid catalyst via interfacial growth of a porous silica crust around Pickering emulsion droplets, which allowed us to overcome the current limitations of both homogeneous and heterogeneous catalysts. The inner micron-scaled liquid (for example, ionic liquids) pool of the resultant catalyst can host free homogeneous molecular catalysts or enzymes to create a true homogeneous catalysis environment. The porous silica crust of the hybrid catalyst has excellent stability, which makes it amenable to packing directly in fixed-bed reactors for continuous flow catalysis. As a proof of concept, the enzymatic kinetic resolution of racemic alcohols, CrIII(salen) complex-catalyzed asymmetric ring opening of epoxides and Pd-catalyzed Tsuji-Trost allylic substitution reactions were used to verify the generality and versatility of our strategy for bridging homogeneous and heterogeneous catalysis. The hybrid catalyst-based continuous flow system exhibited a 1.6∼16-fold enhancement in activity relative to homogeneous counterparts even over 1500 h, and the afforded enantioselectivities were completely equal to those obtained in the homogeneous counterpart systems. Interestingly, the catalytic efficiency can be tuned through rational engineering of the porous crust and the dimensions of the liquid pool, resulting in features of an innovatively designed catalyst. This contribution provides a new method to design efficient catalysts that can bridge the conceptual and technical gaps between homogeneous and heterogeneous catalysis.
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Affiliation(s)
- Xiaoming Zhang
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
| | - Yiting Hou
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
| | - Rammile Ettelaie
- Food Colloids Group, School of Food Science and Nutrition , University of Leeds , Leeds LS2 9JT , United Kingdom
| | - Ruqun Guan
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
| | - Ming Zhang
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
| | - Yabin Zhang
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan 030006 , P. R. China
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42
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Lu X, Zhang Z, Yu L, Zhang B, Wang B, Gong T, Tian C, Xiao B, Fu Y. Free Radical Pathway Cleavage of C—O Bonds for the Synthesis of Alkylboron Compounds. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800500] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xi Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Zhen‐Qi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Lu Yu
- High Magnetic Field LaboratoryChinese Academy of Sciences Hefei Anhui 230031 China
| | - Ben Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Bing Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Tian‐Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Chang‐Lin Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
- High Magnetic Field LaboratoryChinese Academy of Sciences Hefei Anhui 230031 China
- School of Life SciencesUniversity of Science and Technology of China Hefei Anhui 230027 China
| | - Bin Xiao
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEMUniversity of Science and Technology of China Hefei Anhui 230026 China
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43
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Quiroz J, Barbosa ECM, Araujo TP, Fiorio JL, Wang YC, Zou YC, Mou T, Alves TV, de Oliveira DC, Wang B, Haigh SJ, Rossi LM, Camargo PHC. Controlling Reaction Selectivity over Hybrid Plasmonic Nanocatalysts. NANO LETTERS 2018; 18:7289-7297. [PMID: 30352162 PMCID: PMC6348440 DOI: 10.1021/acs.nanolett.8b03499] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/15/2018] [Indexed: 05/21/2023]
Abstract
The localized surface plasmon resonance (LSPR) excitation in plasmonic nanoparticles has been used to accelerate several catalytic transformations under visible-light irradiation. In order to fully harness the potential of plasmonic catalysis, multimetallic nanoparticles containing a plasmonic and a catalytic component, where LSPR-excited energetic charge carriers and the intrinsic catalytic active sites work synergistically, have raised increased attention. Despite several exciting studies observing rate enhancements, controlling reaction selectivity remains very challenging. Here, by employing multimetallic nanoparticles combining Au, Ag, and Pt in an Au@Ag@Pt core-shell and an Au@AgPt nanorattle architectures, we demonstrate that reaction selectivity of a sequential reaction can be controlled under visible light illumination. The control of the reaction selectivity in plasmonic catalysis was demonstrated for the hydrogenation of phenylacetylene as a model transformation. We have found that the localized interaction between the triple bond in phenylacetylene and the Pt nanoparticle surface enables selective hydrogenation of the triple bond (relative to the double bond in styrene) under visible light illumination. Atomistic calculations show that the enhanced selectivity toward the partial hydrogenation product is driven by distinct adsorption configurations and charge delocalization of the reactant and the reaction intermediate at the catalyst surface. We believe these results will contribute to the use of plasmonic catalysis to drive and control a wealth of selective molecular transformations under ecofriendly conditions and visible light illumination.
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Affiliation(s)
- Jhon Quiroz
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Eduardo C. M. Barbosa
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Thaylan P. Araujo
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Jhonatan L. Fiorio
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Yi-Chi Wang
- School
of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Yi-Chao Zou
- School
of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Tong Mou
- Center
for Interfacial Reaction Engineering and School of Chemical, Biological,
and Materials Engineering, Gallogly College of Engineering, The University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Tiago V. Alves
- Departamento
de Físico-Química, Instituto de Química, Universidade Federal da Bahia Rua Barão de Jeremoabo, 147, 40170-115, Salvador, BA, Brazil
| | - Daniela C. de Oliveira
- Centro
Nacional de Pesquisa em Energia e Materiais, Laboratório Nacional
de Luz Síncrotron, 13083-970, Campinas, SP, Brazil
| | - Bin Wang
- Center
for Interfacial Reaction Engineering and School of Chemical, Biological,
and Materials Engineering, Gallogly College of Engineering, The University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Sarah J. Haigh
- School
of Materials, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Liane M. Rossi
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Pedro H. C. Camargo
- Departamento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, Avenido Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
- E-mail:
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44
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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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45
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Cho T, Yoon CW, Kim J. Repetitively Coupled Chemical Reduction and Galvanic Exchange as a Synthesis Strategy for Expanding Applicable Number of Pt Atoms in Dendrimer-Encapsulated Pt Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7436-7444. [PMID: 29856918 DOI: 10.1021/acs.langmuir.8b01169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, we report the controllable synthesis of dendrimer-encapsulated Pt nanoparticles (Pt DENs) utilizing repetitively coupled chemical reduction and galvanic exchange reactions. The synthesis strategy allows the expansion of the applicable number of Pt atoms encapsulated inside dendrimers to more than 1000 without being limited by the fixed number of complexation sites for Pt2+ precursor ions in the dendrimers. The synthesis of Pt DENs is achieved in a short period of time (i.e., ∼10 min) simply by the coaddition of appropriate amounts of Cu2+ and Pt2+ precursors into aqueous dendrimer solution and subsequent addition of reducing agents such as BH4-, resulting in fast and selective complexation of Cu2+ with the dendrimers and subsequent chemical reduction of the complexed Cu2+ while uncomplexed Pt2+ precursors remain oxidized. Interestingly, the chemical reduction of Cu2+, leading to the formation of Cu nanoparticles encapsulated inside the dendrimers, is coupled with the galvanic exchange of the Cu nanoparticles with the nearby Pt2+. This coupling repetitively proceeds until all of the added Pt2+ ions form into Pt nanoparticles encapsulated inside the dendrimers. In contrast to the conventional method utilizing direct chemical reduction, this repetitively coupled chemical reduction and galvanic exchange enables a substantial increase in the applicable number of Pt atoms up to 1320 in Pt DENs while maintaining the unique features of DENs.
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Affiliation(s)
| | - Chang Won Yoon
- Fuel Cell Research Center , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
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46
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Liu L, Corma A. Metal Catalysts for Heterogeneous Catalysis: From Single Atoms to Nanoclusters and Nanoparticles. Chem Rev 2018; 118:4981-5079. [PMID: 29658707 PMCID: PMC6061779 DOI: 10.1021/acs.chemrev.7b00776] [Citation(s) in RCA: 1842] [Impact Index Per Article: 307.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Indexed: 12/02/2022]
Abstract
Metal species with different size (single atoms, nanoclusters, and nanoparticles) show different catalytic behavior for various heterogeneous catalytic reactions. It has been shown in the literature that many factors including the particle size, shape, chemical composition, metal-support interaction, and metal-reactant/solvent interaction can have significant influences on the catalytic properties of metal catalysts. The recent developments of well-controlled synthesis methodologies and advanced characterization tools allow one to correlate the relationships at the molecular level. In this Review, the electronic and geometric structures of single atoms, nanoclusters, and nanoparticles will be discussed. Furthermore, we will summarize the catalytic applications of single atoms, nanoclusters, and nanoparticles for different types of reactions, including CO oxidation, selective oxidation, selective hydrogenation, organic reactions, electrocatalytic, and photocatalytic reactions. We will compare the results obtained from different systems and try to give a picture on how different types of metal species work in different reactions and give perspectives on the future directions toward better understanding of the catalytic behavior of different metal entities (single atoms, nanoclusters, and nanoparticles) in a unifying manner.
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Affiliation(s)
- Lichen Liu
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo
Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, España
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo
Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, España
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47
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Surface Science Approach to the Molecular Level Integration of the Principles in Heterogeneous, Homogeneous, and Enzymatic Catalysis. Top Catal 2018. [DOI: 10.1007/s11244-018-0975-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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48
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Meng J, Fan LF, Han ZY, Gong LZ. α-Quaternary Chiral Aldehydes from Styrenes, Allylic Alcohols, and Syngas via Multi-catalyst Relay Catalysis. Chem 2018. [DOI: 10.1016/j.chempr.2018.03.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Tambosco B, Segura K, Seyrig C, Cabrera D, Port M, Ferroud C, Amara Z. Outer-Sphere Effects in Visible-Light Photochemical Oxidations with Immobilized and Recyclable Ruthenium Bipyridyl Salts. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00890] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Bryan Tambosco
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Kevin Segura
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Chloé Seyrig
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Damien Cabrera
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Marc Port
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Clotilde Ferroud
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
| | - Zacharias Amara
- Equipe de Chimie Moléculaire, EA 7341, Laboratoire de Chimie Moléculaire, Génie des Procédés Chimiques et Energétiques, Conservatoire National des Arts et Métiers, 2 rue Conté, Paris 75003, France
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Ye R, Zhukhovitskiy AV, Kazantsev RV, Fakra SC, Wickemeyer BB, Toste FD, Somorjai GA. Supported Au Nanoparticles with N-Heterocyclic Carbene Ligands as Active and Stable Heterogeneous Catalysts for Lactonization. J Am Chem Soc 2018; 140:4144-4149. [PMID: 29506380 DOI: 10.1021/jacs.8b01017] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Attachment of N-heterocyclic carbenes (NHCs) on the surface of metal nanoparticle (NP) catalysts permits fine-tuning of catalytic activity and product selectivity. Yet, NHC-coated Au NPs have been seldom used in catalysis beyond hydrogenation chemistry. One challenge in this field has been to develop a platform that permits arbitrary ligand modification without having to compromise NP stability toward aggregation or leaching. Herein, we exploit the strategy of supported dendrimer-encapsulated metal clusters (DEMCs) to achieve aggregation-stable yet active heterogeneous Au NP catalysts with NHC ligands. Dendrimers function as aggregation-inhibitors during the NP synthesis, and NHCs, well-known for their strong attachment to the gold surface, provide a handle to modify the stereochemistry, stereoelectronics, and chemical functionality of the NP surface. Indeed, compared to "ligandless" Au NPs which are virtually inactive below 80 °C, the NHC-ligated Au NP catalysts enable a model lactonization reaction to proceed at 20 °C on the same time scale (hours). Based on Eyring analysis, proto-deauration is the turnover-limiting step accelerated by the NHC ligands. Furthermore, the use of chiral NHCs led to asymmetric induction (up to 16% enantiomeric excess) in the lactonization transformations, which demonstrates the potential of supported DEMCs with ancillary ligands in enantioselective catalysis.
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