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Li T, Xu B. Mechanically Strong Heterogeneous Catalysts via Immobilization of Powderous Catalysts to Porous Plastic Tablets. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tingting Li
- Key Laboratory of Science and Technology of Eco‐Textiles Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco‐Textiles Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University Shanghai 201620 China
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2
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Rolly GS, Sermiagin A, Meyerstein D, Zidki T. Silica Support Affects the Catalytic Hydrogen Evolution by Silver. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Gifty Sara Rolly
- Department of Chemical Sciences The Center for Radical Reactions Ariel University P.O.B. 3 Ariel 40700 Israel
| | - Alina Sermiagin
- Department of Chemical Sciences The Center for Radical Reactions Ariel University P.O.B. 3 Ariel 40700 Israel
| | - Dan Meyerstein
- Department of Chemical Sciences The Center for Radical Reactions Ariel University P.O.B. 3 Ariel 40700 Israel
- Department of Chemistry Ben-Gurion University of the Negev P.O.B. 653 Beer-Sheva 84105 Israel
| | - Tomer Zidki
- Department of Chemical Sciences The Center for Radical Reactions Ariel University P.O.B. 3 Ariel 40700 Israel
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3
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Karimadom BR, Kornweitz H. Mechanism of Producing Metallic Nanoparticles, with an Emphasis on Silver and Gold Nanoparticles, Using Bottom-Up Methods. Molecules 2021; 26:2968. [PMID: 34067624 PMCID: PMC8156005 DOI: 10.3390/molecules26102968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/09/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
Bottom-up nanoparticle (NP) formation is assumed to begin with the reduction of the precursor metallic ions to form zero-valent atoms. Studies in which this assumption was made are reviewed. The standard reduction potential for the formation of aqueous metallic atoms-E0(Mn+aq/M0aq)-is significantly lower than the usual standard reduction potential for reducing metallic ions Mn+ in aqueous solution to a metal in solid state. E0(Mn+aq/M0solid). E0(Mn+aq/M0aq) values are negative for many typical metals, including Ag and Au, for which E0(Mn+aq/M0solid) is positive. Therefore, many common moderate reduction agents that do not have significantly high negative reduction standard potentials (e.g., hydrogen, carbon monoxide, citrate, hydroxylamine, formaldehyde, ascorbate, squartic acid, and BH4-), and cannot reduce the metallic cations to zero-valent atoms, indicating that the mechanism of NP production should be reconsidered. Both AgNP and AuNP formations were found to be multi-step processes that begin with the formation of clusters constructed from a skeleton of M+-M+ (M = Ag or Au) bonds that is followed by the reduction of a cation M+ in the cluster to M0, to form Mn0 via the formation of NPs. The plausibility of M+-M+ formation is reviewed. Studies that suggest a revised mechanism for the formation of AgNPs and AuNPs are also reviewed.
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Affiliation(s)
| | - Haya Kornweitz
- Chemical Sciences Department, Ariel University, Ariel 4077625, Israel;
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4
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Mondal T, Sermiagin A, Zidki T, Bogot A, Meyerstein D, Kornweitz H. On the Differences in the Mechanisms of Reduction of AuCl 2- and Ag(H 2O) 2+ with BH 4. J Phys Chem A 2020; 124:10765-10776. [PMID: 33319563 DOI: 10.1021/acs.jpca.0c06610] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The mechanism of reduction of AuCl4-/AuCl3OH- by BH4- was analyzed by density functional theory (DFT). The results point out that Auatoms0 are not intermediates in the process. The derived mechanism differs considerably from that reported for the analogous process involving the reduction of Ag(H2O)2+ by BH4-. Thus, though both processes follow the Creighton procedure, the detailed mechanism differs significantly. For Au, the agglomeration starts with AuH2-, whereas for Ag, it starts with (H2O)AgH. Stopped-flow measurements support the complicated mechanism.
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Affiliation(s)
- Totan Mondal
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel
| | - Alina Sermiagin
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel
| | - Tomer Zidki
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel
| | - Allon Bogot
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel
| | - Dan Meyerstein
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel.,Chemistry Department, Ben-Gurion University, Beer-Sheva, 4077625 Israel
| | - Haya Kornweitz
- Chemical Sciences Department and The Radical Research Center, Ariel University, Ariel, 4077625Israel
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5
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Flow-Through Catalytic Reactors Based on Metal Nanoparticles Immobilized within Porous Polymeric Gels and Surfaces/Hollows of Polymeric Membranes. Polymers (Basel) 2020; 12:polym12030572. [PMID: 32143486 PMCID: PMC7182848 DOI: 10.3390/polym12030572] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 12/17/2022] Open
Abstract
State-of-the-art of flow-through catalytic reactors based on metal nanoparticles immobilized within the pores of nano-, micro- and macrosized polymeric gels and in the surface or hollow of polymeric membranes is discussed in this mini-review. The unique advantages of continuous flow-through nanocatalysis over the traditional batch-type analog are high activity, selectivity, productivity, recyclability, continuous operation, and purity of reaction products etc. The methods of fabrication of polymeric carriers and immobilization technique for metal nanoparticles on the surface of porous or hollow structures are considered. Several catalytic model reactions comprising of hydrolysis, decomposition, hydrogenation, oxidation, Suzuki coupling and enzymatic reactions in the flow system are exemplified. Realization of “on-off” switching mechanism for regulation of the rate of catalytic process through controlling the mass transfers of reactants in liquid media with the help of stimuli-responsive polymers is demonstrated. Comparative analysis of the efficiency of different flow-through catalytic reactors for various reactions is also surveyed.
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Abstract
Abstract
The macromolecular complexes of random, regular, graft, block and dendritic polyampholytes with respect to transition metal ions, surfactants, dyes, polyelectrolytes, and proteins are discussed in this review. Application aspects of macromolecular complexes of polyampholytes in biotechnology, medicine, nanotechnology, catalysis are demonstrated.
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Affiliation(s)
- Sarkyt E. Kudaibergenov
- Institute of Polymer Materials and Technology , Almaty , Kazakhstan
- Laboratory of Engineering Profile, Satbayev University , Almaty , Kazakhstan
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7
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Mondal T, Sermiagin A, Meyerstein D, Zidki T, Kornweitz H. On the mechanism of reduction of M(H 2O) mn+ by borohydride: the case of Ag(H 2O) 2. NANOSCALE 2020; 12:1657-1672. [PMID: 31894221 DOI: 10.1039/c9nr08472j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The redox potentials of M(H2O)mn+/M0(atom) couples are often far too negative to enable the formation of M0(atom) by most reducing agents. Therefore, one has to reconsider the mechanism of formation of M0-NPs by the bottom-up procedure. A deep and detailed theoretical analysis of the reduction of Ag(H2O)2+ by BH4- points out that silver cations act mainly as catalysts of the reactions BH4- + 4H2O → B(OH)4- + 4H2. However, the transition states of the catalyzed process differ from those of the un-catalyzed process. The formation of (H2O)Ag-H, which is the starting stage for the formation of intermediates with Ag-Ag bonds, is only a side reaction in the process. Experimental evidence of the complexity of the process is presented, by stopped-flow; at least four processes are observed prior to the formation of Ag0-NPs. The spectra of these intermediates differ from those of Ag0atom and Ag2+aq. Though DFT calculations were performed only for silver cations, it is believed that analogous mechanisms are involved in the reductions of other cations.
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Affiliation(s)
- Totan Mondal
- Department of Chemical Sciences and The Center for Radical Reactions, Ariel University, Ariel, Israel.
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8
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Zhou M, Li T, Xu B. Easy-handling and low-leaching heterogeneous palladium and platinum catalysts via coating with a silicone elastomer. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Kudaibergenov SE. Physicochemical, Complexation and Catalytic Properties of Polyampholyte Cryogels. Gels 2019; 5:gels5010008. [PMID: 30795568 PMCID: PMC6473870 DOI: 10.3390/gels5010008] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/11/2019] [Accepted: 02/18/2019] [Indexed: 12/24/2022] Open
Abstract
Polyampholyte cryogels are a less considered subject in comparison with cryogels based on nonionic, anionic and cationic precursors. This review is devoted to physicochemical behavior, complexation ability and catalytic properties of cryogels based on amphoteric macromolecules. Polyampholyte cryogels are able to exhibit the stimuli-responsive behavior and change the structure and morphology in response to temperature, pH of the medium, ionic strength and water–organic solvents. Moreover, they can uptake transition metal ions, anionic and cationic dyes, ionic surfactants, polyelectrolytes, proteins, and enzymes through formation of coordination bonds, hydrogen bonds, and electrostatic forces. The catalytic properties of polyampholyte cryogels themselves and with immobilized metal nanoparticles suspended are outlined following hydrolysis, transesterification, hydrogenation and oxidation reactions of various substrates. Application of polyampholyte cryogels as a protein-imprinted matrix for separation and purification of biomacromolecules and for sustained release of proteins is demonstrated. Comparative analysis of the behavior of polyampholyte cryogels with nonionic, anionic and cationic precursors is given together with concluding remarks.
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Affiliation(s)
- Sarkyt E Kudaibergenov
- Institute of Polymer Materials and Technology, Microregion "Atyrau 1", house 3/1, Almaty 050019, Kazakhstan.
- Laboratory of Engineering Profile, K.I. Satpayev Kazakh National Research Technical University, Satpayev Str. 22, Almaty 050013, Kazakhstan.
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10
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Sermiagin A, Meyerstein D, Bar-Ziv R, Zidki T. The Chemical Properties of Hydrogen Atoms Adsorbed on M 0 -Nanoparticles Suspended in Aqueous Solutions: The Case of Ag 0 -NPs and Au 0 -NPs Reduced by BD 4. Angew Chem Int Ed Engl 2018; 57:16525-16528. [PMID: 30320944 DOI: 10.1002/anie.201809302] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/14/2018] [Indexed: 01/17/2023]
Abstract
The nature of H-atoms adsorbed on M0 -nanoparticles is of major importance in many catalyzed reduction processes. Using isotope labeling, we determined that hydrogen evolution from transient {(M0 -NP)-Hn }n- proceeds mainly via the Heyrovsky mechanism when n is large (i.e., the hydrogens behave as hydrides) but mainly via the Tafel mechanism when n is small (i.e., the hydrogens behave as atoms). Additionally, the relative contributions of the two mechanisms differ considerably for M=Au and Ag. The results are analogous to those recently reported for the M0 -NP-catalyzed de-halogenation processes.
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Affiliation(s)
- Alina Sermiagin
- Chemical Sciences Department, Ariel University, Kyriat Hamada 3, Ariel, 40700, Israel
| | - Dan Meyerstein
- Chemical Sciences Department, Ariel University, Kyriat Hamada 3, Ariel, 40700, Israel.,Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel
| | - Ronen Bar-Ziv
- Chemistry Department, Nuclear Research Centre Negev, Beer-Sheva, 84190, Israel
| | - Tomer Zidki
- Chemical Sciences Department, Ariel University, Kyriat Hamada 3, Ariel, 40700, Israel
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11
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Sermiagin A, Meyerstein D, Bar-Ziv R, Zidki T. The Chemical Properties of Hydrogen Atoms Adsorbed on M0
-Nanoparticles Suspended in Aqueous Solutions: The Case of Ag0
-NPs and Au0
-NPs Reduced by BD4
−. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alina Sermiagin
- Chemical Sciences Department; Ariel University; Kyriat Hamada 3 Ariel 40700 Israel
| | - Dan Meyerstein
- Chemical Sciences Department; Ariel University; Kyriat Hamada 3 Ariel 40700 Israel
- Chemistry Department; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel
| | - Ronen Bar-Ziv
- Chemistry Department; Nuclear Research Centre Negev; Beer-Sheva 84190 Israel
| | - Tomer Zidki
- Chemical Sciences Department; Ariel University; Kyriat Hamada 3 Ariel 40700 Israel
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12
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Preparation of metal-polymer nanocomposites by chemical reduction of metal ions: functions of polymer matrices. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1646-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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13
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Zhao Q, Mu S, Liu X, Qiu G, Astruc D, Gu H. Gallol-Tethered Injectable AuNP Hydrogel with Desirable Self-Healing and Catalytic Properties. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800427] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qiuxia Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
| | - Shengdong Mu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
| | - Xiong Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
| | - Guirong Qiu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
| | - Didier Astruc
- ISM, UMR CNRS N 5255; Univ. Bordeaux; 33405 Talence Cedex France
| | - Haibin Gu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education; Sichuan University; Chengdu 610065 China
- National Engineering Laboratory for Clean Technology of Leather Manufacture; Sichuan University; Chengdu 610065 China
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14
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Rapid Room-Temperature Synthesis of Gold Nanoparticles Using Sargentgloryvine Stem Extract and Their Photocatalytic Activity. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0985-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Kudaibergenov S, Dauletbekova M, Toleutay G, Kabdrakhmanova S, Seilkhanov T, Abdullin K. Hydrogenation of p-Nitrobenzoic Acid by Gold and Palladium Nanoparticles Immobilized Within Macroporous Amphoteric Cryogels in Aqueous Solution. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0930-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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‘Green’ synthesis of silver polymer Nanocomposites of poly (2-isopropenyl-2- oxazoline-co- N-vinylpyrrolidone) and its catalytic activity. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1548-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Synthesis of l-Cysteine Capped Silver Nanoparticles in Acidic Media at Room Temperature and Detailed Characterization. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0748-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Chakraborty I, Pradeep T. Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles. Chem Rev 2017; 117:8208-8271. [DOI: 10.1021/acs.chemrev.6b00769] [Citation(s) in RCA: 1305] [Impact Index Per Article: 186.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Indranath Chakraborty
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST
UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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