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Morais Ferreira RK, Ben Miled M, Nishihora RK, Christophe N, Carles P, Motz G, Bouzid A, Machado R, Masson O, Iwamoto Y, Célérier S, Habrioux A, Bernard S. Low temperature in situ immobilization of nanoscale fcc and hcp polymorphic nickel particles in polymer-derived Si-C-O-N(H) to promote electrocatalytic water oxidation in alkaline media. NANOSCALE ADVANCES 2023; 5:701-710. [PMID: 36756503 PMCID: PMC9890898 DOI: 10.1039/d2na00821a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 06/18/2023]
Abstract
We synthesized nickel (Ni) nanoparticles (NPs) in a high specific surface area (SSA) p-block element-containing inorganic compound prepared via the polymer-derived ceramics (PDC) route to dispatch the obtained nanocomposite towards oxygen evolution reaction (OER). The in situ formation of Ni NPs in an amorphous silicon carboxynitride (Si-C-O-N(H)) matrix is allowed by the reactive blending of a polysilazane, NiCl2 and DMF followed by the subsequent thermolysis of the Ni : organosilicon polymer coordination complex at a temperature as low as 500 °C in flowing argon. The final nanocomposite displays a BET SSA as high as 311 m2 g-1 while the structure of the NPs corresponds to face-centred cubic (fcc) Ni along with interstitial-atom free (IAF) hexagonal close-packed (hcp) Ni as revealed by XRD. A closer look into the compound through FEG-SEM microscopy confirms the formation of pure metallic Ni, while HR-TEM imaging reveals the occurrence of Ni particles featuring a fcc phase and surrounded by carbon layers; thus, forming core-shell structures, along with Ni NPs in an IAF hcp phase. By considering that this newly synthesized material contains only Ni without doping (e.g., Fe) with a low mass loading (0.15 mg cm-2), it shows promising OER performances with an overpotential as low as 360 mV at 10 mA cm-2 according to the high SSA matrix, the presence of the IAF hcp Ni NPs and the development of core-shell structures. Given the simplicity, the flexibility, and the low cost of the proposed synthesis approach, this work opens the doors towards a new family of very active and stable high SSA nanocomposites made by the PDC route containing well dispersed and accessible non-noble transition metals for electrocatalysis applications.
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Affiliation(s)
- Roberta Karoline Morais Ferreira
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
- Chemical Engineering, Federal University of Santa Catarina 88010-970 Florianópolis Brazil
| | | | - Rafael Kenji Nishihora
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
- Chemical Engineering, Federal University of Santa Catarina 88010-970 Florianópolis Brazil
| | - Nicolas Christophe
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS F-86073 Poitiers France
| | - Pierre Carles
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
| | - Günter Motz
- University of Bayreuth, Ceramic Materials Engineering (CME) Bayreuth Germany
| | - Assil Bouzid
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
| | - Ricardo Machado
- Chemical Engineering, Federal University of Santa Catarina 88010-970 Florianópolis Brazil
| | - Olivier Masson
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
| | - Yuji Iwamoto
- Graduated School of Engineering, Department of Life Science and Applied Chemistry, Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya Aichi 466-8555 Japan
| | - Stéphane Célérier
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS F-86073 Poitiers France
| | - Aurélien Habrioux
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers, CNRS F-86073 Poitiers France
| | - Samuel Bernard
- Univ. Limoges, CNRS, IRCER UMR 7315 F-87000 Limoges France
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2
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Sustainably Recycling and Upcycling of Single-Use Plastic Wastes through Heterogeneous Catalysis. Catalysts 2022. [DOI: 10.3390/catal12080818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The huge amount of plastic waste has caused a series of environmental and economic problems. Depolymerization of these wastes and their conversion into desired chemicals have been regarded as a promising route for dealing with these issues, which strongly relies on catalysis for C-C and C-O bond cleavage and selective transformation. Here, we reviewed recent developments in catalysis systems for dealing with single-use plastics, such as polyethylene, polypropylene, and polyethylene glycol terephthalate. The recycling processes of depolymerization into original monomers and conversion into other economic-incentive chemicals were systemically discussed. Rational designs of catalysts for efficient conversion were particularly highlighted. Overall, improving the tolerance of catalysts to impurities in practical plastics, reducing the economic cost during the catalytic depolymerization process, and trying to obtain gaseous hydrogen from plastic wastes are suggested as the developing trends in this field.
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Asakuma N, Tada S, Kawaguchi E, Terashima M, Honda S, Nishihora RK, Carles P, Bernard S, Iwamoto Y. Mechanistic Investigation of the Formation of Nickel Nanocrystallites Embedded in Amorphous Silicon Nitride Nanocomposites. NANOMATERIALS 2022; 12:nano12101644. [PMID: 35630866 PMCID: PMC9145008 DOI: 10.3390/nano12101644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/02/2022] [Accepted: 05/10/2022] [Indexed: 01/10/2023]
Abstract
Herein, we report the mechanistic investigation of the formation of nickel (Ni) nanocrystallites during the formation of amorphous silicon nitride at a temperature as low as 400 °C, using perhydropolysilazane (PHPS) as a preformed precursor and further coordinated by nickel chloride (NiCl2); thus, forming the non-noble transition metal (TM) as a potential catalyst and the support in an one-step process. It was demonstrated that NiCl2 catalyzed dehydrocoupling reactions between Si-H and N-H bonds in PHPS to afford ternary silylamino groups, which resulted in the formation of a nanocomposite precursor via complex formation: Ni(II) cation of NiCl2 coordinated the ternary silylamino ligands formed in situ. By monitoring intrinsic chemical reactions during the precursor pyrolysis under inert gas atmosphere, it was revealed that the Ni-N bond formed by a nucleophilic attack of the N atom on the Ni(II) cation center, followed by Ni nucleation below 300 °C, which was promoted by the decomposition of Ni nitride species. The latter was facilitated under the hydrogen-containing atmosphere generated by the NiCl2-catalyzed dehydrocoupling reaction. The increase of the temperature to 400 °C led to the formation of a covalently-bonded amorphous Si3N4 matrix surrounding Ni nanocrystallites.
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Affiliation(s)
- Norifumi Asakuma
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
| | - Shotaro Tada
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
| | - Erika Kawaguchi
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
| | - Motoharu Terashima
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
| | - Sawao Honda
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
| | - Rafael Kenji Nishihora
- CNRS, IRCER, UMR 7315, University of Limoges, F-87000 Limoges, France; (R.K.N.); (P.C.); (S.B.)
| | - Pierre Carles
- CNRS, IRCER, UMR 7315, University of Limoges, F-87000 Limoges, France; (R.K.N.); (P.C.); (S.B.)
| | - Samuel Bernard
- CNRS, IRCER, UMR 7315, University of Limoges, F-87000 Limoges, France; (R.K.N.); (P.C.); (S.B.)
| | - Yuji Iwamoto
- Department of Life Science and Applied Chemistry, Graduated School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan; (N.A.); (S.T.); (E.K.); (M.T.); (S.H.)
- Correspondence:
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Zhou Y, Hu D, Li D, Jiang X. Uranyl-Photocatalyzed Hydrolysis of Diaryl Ethers at Ambient Environment for the Directional Degradation of 4-O-5 Lignin. JACS AU 2021; 1:1141-1146. [PMID: 34467354 PMCID: PMC8397364 DOI: 10.1021/jacsau.1c00168] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Uranyl-photocatalyzed hydrolysis of diaryl ethers has been established to achieve two types of phenols at room temperature under normal pressure. The single electron transfer process was disclosed by a radical quenching experiment and Stern-Volmer analysis between diphenyl ether and uranyl cation catalyst, followed by oxygen atom transfer process between radical cation of diphenyl ether and uranyl peroxide species. The 18O-labeling experiment precisely demonstrates that the oxygen source is water. Further application in template substrates of 4-O-5 linkages from lignin and 30-fold efficiency of flow operation display the potential application for phenol recovery via an ecofriendly and low-energy consumption protocol.
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Affiliation(s)
- Yilin Zhou
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Deqing Hu
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Daoji Li
- State
Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry
and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
- State
Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
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5
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Tuci G, Liu Y, Rossin A, Guo X, Pham C, Giambastiani G, Pham-Huu C. Porous Silicon Carbide (SiC): A Chance for Improving Catalysts or Just Another Active-Phase Carrier? Chem Rev 2021; 121:10559-10665. [PMID: 34255488 DOI: 10.1021/acs.chemrev.1c00269] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is an obvious gap between efforts dedicated to the control of chemicophysical and morphological properties of catalyst active phases and the attention paid to the search of new materials to be employed as functional carriers in the upgrading of heterogeneous catalysts. Economic constraints and common habits in preparing heterogeneous catalysts have narrowed the selection of active-phase carriers to a handful of materials: oxide-based ceramics (e.g. Al2O3, SiO2, TiO2, and aluminosilicates-zeolites) and carbon. However, these carriers occasionally face chemicophysical constraints that limit their application in catalysis. For instance, oxides are easily corroded by acids or bases, and carbon is not resistant to oxidation. Therefore, these carriers cannot be recycled. Moreover, the poor thermal conductivity of metal oxide carriers often translates into permanent alterations of the catalyst active sites (i.e. metal active-phase sintering) that compromise the catalyst performance and its lifetime on run. Therefore, the development of new carriers for the design and synthesis of advanced functional catalytic materials and processes is an urgent priority for the heterogeneous catalysis of the future. Silicon carbide (SiC) is a non-oxide semiconductor with unique chemicophysical properties that make it highly attractive in several branches of catalysis. Accordingly, the past decade has witnessed a large increase of reports dedicated to the design of SiC-based catalysts, also in light of a steadily growing portfolio of porous SiC materials covering a wide range of well-controlled pore structure and surface properties. This review article provides a comprehensive overview on the synthesis and use of macro/mesoporous SiC materials in catalysis, stressing their unique features for the design of efficient, cost-effective, and easy to scale-up heterogeneous catalysts, outlining their success where other and more classical oxide-based supports failed. All applications of SiC in catalysis will be reviewed from the perspective of a given chemical reaction, highlighting all improvements rising from the use of SiC in terms of activity, selectivity, and process sustainability. We feel that the experienced viewpoint of SiC-based catalyst producers and end users (these authors) and their critical presentation of a comprehensive overview on the applications of SiC in catalysis will help the readership to create its own opinion on the central role of SiC for the future of heterogeneous catalysis.
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Affiliation(s)
- Giulia Tuci
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, 116023 Dalian, China
| | - Andrea Rossin
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy
| | - Xiangyun Guo
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Charlotte Pham
- SICAT SARL, 20 place des Halles, 67000 Strasbourg, France
| | - Giuliano Giambastiani
- Institute of Chemistry of OrganoMetallic Compounds, ICCOM-CNR and Consorzio INSTM, Via Madonna del Piano, 10, 50019 Sesto F.no, Florence, Italy.,Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Cuong Pham-Huu
- Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), ECPM, UMR 7515 of the CNRS-University of Strasbourg, 25 rue Becquerel, 67087 Strasbourg Cedex 02, France
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6
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Tada S, Mallmann MD, Takagi H, Iihama J, Asakuma N, Asaka T, Daiko Y, Honda S, Nishihora RK, Machado RAF, Bernard S, Iwamoto Y. Low temperature in situ formation of cobalt in silicon nitride toward functional nitride nanocomposites. Chem Commun (Camb) 2021; 57:2057-2060. [PMID: 33507185 DOI: 10.1039/d0cc07366k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This work highlights the first demonstration of a low-temperature in situ formation of Co nanocrystallites embedded within an amorphous silicon nitride matrix through careful control of the chemistry behind material design using perhydropolysilazane (PHPS) as a Si3N4 precursor further coordinated with CoCl2 and ammonia as a pyrolysis atmosphere. The Co nucleation was allowed to proceed at temperatures as low as 400 °C via thermal decomposition of Co2N pre-formed in situ by the reaction of CoCl2 with the Si centers of PHPS at the early stage of pyrolysis (220-350 °C).
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Affiliation(s)
- Shotaro Tada
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Maira Debarba Mallmann
- University of Limoges, CNRS, IRCER, UMR 7315, Limoges, F-87000, France and Chemical Engineering, Federal University of Santa Catarina, Florianópolis, 88010-970, Brazil
| | - Haruna Takagi
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Junya Iihama
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Norifumi Asakuma
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Toru Asaka
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Yusuke Daiko
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Sawao Honda
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Rafael Kenji Nishihora
- University of Limoges, CNRS, IRCER, UMR 7315, Limoges, F-87000, France and Chemical Engineering, Federal University of Santa Catarina, Florianópolis, 88010-970, Brazil
| | | | - Samuel Bernard
- University of Limoges, CNRS, IRCER, UMR 7315, Limoges, F-87000, France
| | - Yuji Iwamoto
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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7
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Viard A, Kurz H, Lale A, Heymann L, Weber B, Bernard S, Knauer M, Motz G. Superparamagnetic Silicon Carbonitride Ceramic Fibers Through In Situ Generation of Iron Silicide Nanoparticles During Pyrolysis of an Iron-Modified Polysilazane. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8745-8753. [PMID: 33560117 DOI: 10.1021/acsami.0c20885] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ceramic fibers are high-tech structural key components of ceramic matrix composites (CMCs), which are a very promising class of materials for applications in next-generation turbines, especially nonoxide ceramic fibers, usually produced by the polymer-derived ceramics (PDC) route, which possess the enhanced mechanical and thermostructural properties necessary to withstand the harsh conditions (temperature and atmosphere) imposed on CMCs. However, recycling composite materials, such as fiber-reinforced polymers and CMCs, is still a big challenge. Here, we present for the first time the processing of superparamagnetic iron-containing ceramic fibers, which, due to their magnetic properties, can be separated from the matrix material of a composite. The synthesis strategy of the novel functional ceramic fibers is based on a tailored reaction of polyorganosilazane with an iron complex, resulting in a suitable, meltable polymer. After melt-spinning and curing, subsequent pyrolysis leads to superparamagnetic ceramic fibers with a saturation magnetization of 1.54 emu g-1 because of in situ-formed iron silicide nanoparticles of an average size of 7.5 nm, homogeneously dispersed in an amorphous SiCNO matrix. Moreover, the ceramic fibers exhibit a tensile strength of 1.24 GPa and appropriate oxidation resistance. The developed versatile reaction strategy allows also for the incorporation of other elements to implement further functionalities for processing of multifunctional composites.
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Affiliation(s)
- Antoine Viard
- Ceramic Materials Engineering (CME), University of Bayreuth, D-95440 Bayreuth, Germany
| | - Hannah Kurz
- Inorganic Chemistry IV, University of Bayreuth, Universitätsstr. 30, NW I, 95440 Bayreuth, Germany
| | - Abhijeet Lale
- Université Limoges, CNRS, IRCER, UMR 7315, F-87000 Limoges, France
| | - Lutz Heymann
- Department of Applied Mechanics and Fluid Dynamics, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Birgit Weber
- Inorganic Chemistry IV, University of Bayreuth, Universitätsstr. 30, NW I, 95440 Bayreuth, Germany
| | - Samuel Bernard
- Université Limoges, CNRS, IRCER, UMR 7315, F-87000 Limoges, France
| | - Michael Knauer
- Ceramic Materials Engineering (CME), University of Bayreuth, D-95440 Bayreuth, Germany
| | - Günter Motz
- Ceramic Materials Engineering (CME), University of Bayreuth, D-95440 Bayreuth, Germany
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8
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Visible-light photoredox-catalyzed C-O bond cleavage of diaryl ethers by acridinium photocatalysts at room temperature. Nat Commun 2020; 11:6126. [PMID: 33257656 PMCID: PMC7705023 DOI: 10.1038/s41467-020-19944-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 11/06/2020] [Indexed: 11/08/2022] Open
Abstract
Cleavage of C-O bonds in lignin can afford the renewable aryl sources for fine chemicals. However, the high bond energies of these C-O bonds, especially the 4-O-5-type diaryl ether C-O bonds (~314 kJ/mol) make the cleavage very challenging. Here, we report visible-light photoredox-catalyzed C-O bond cleavage of diaryl ethers by an acidolysis with an aryl carboxylic acid and a following one-pot hydrolysis. Two molecules of phenols are obtained from one molecule of diaryl ether at room temperature. The aryl carboxylic acid used for the acidolysis can be recovered. The key to success of the acidolysis is merging visible-light photoredox catalysis using an acridinium photocatalyst and Lewis acid catalysis using Cu(TMHD)2. Preliminary mechanistic studies indicate that the catalytic cycle occurs via a rare selective electrophilic attack of the generated aryl carboxylic radical on the electron-rich aryl ring of the diphenyl ether. This transformation is applied to a gram-scale reaction and the model of 4-O-5 lignin linkages.
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9
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Song Y, Feng X, Chen JS, Brzezinski C, Xu Z, Lin W. Multistep Engineering of Synergistic Catalysts in a Metal–Organic Framework for Tandem C–O Bond Cleavage. J Am Chem Soc 2020; 142:4872-4882. [DOI: 10.1021/jacs.0c00073] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yang Song
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Justin S. Chen
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Carter Brzezinski
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Ziwan Xu
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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10
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Kar AK, Kaur SP, Kumar TJD, Srivastava R. Efficient hydrogenolysis of aryl ethers over Ce-MOF supported Pd NPs under mild conditions: mechanistic insight using density functional theoretical calculations. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01279c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The significant Pd0 content and optimum bonding of the reactant & product (higher adsorption energy of benzyl phenyl ether and lower desorption energy for phenol) are responsible for the exceptional catalytic activity of Pd/Ce-MOF.
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Affiliation(s)
- Ashish Kumar Kar
- Catalysis Research Laboratory
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Surinder Pal Kaur
- Catalysis Research Laboratory
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - T. J. Dhilip Kumar
- Catalysis Research Laboratory
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
| | - Rajendra Srivastava
- Catalysis Research Laboratory
- Department of Chemistry
- Indian Institute of Technology Ropar
- Rupnagar
- India
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11
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Enhanced Selective Production of Arenes and Regenerating Rate in Aryl Ether Hydrogenolysis over Mesoporous Nickel in Plug-Flow Reactors. Catalysts 2019. [DOI: 10.3390/catal9110904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Ordered mesoporous nickel (mesoNi) was successfully synthesized with a hard templating method by using KIT-6 ordered mesoporous silica as a template. With small-angle X-ray diffraction (SAXRD), transmission electron microscopy (TEM) and N2 sorption technique, the mesoporous structures of synthesized catalysts were characterized with desired high surface area (84.2 m2·g−1) and narrow pore size distribution. MesoNi exhibited outstanding catalytic cleavage activity for lignin model compounds (benzyl phenyl ether, BPE) with high selectivity of arenes in the flow reactor system. MesoNi also showed higher regeneration rates than non-porous ones, which were confirmed from deactivation and regeneration mechanism studies in the flow reaction system with varied high temperature and pressure. The adsorbed poisoning species on the mesoporous Ni surface were analyzed and phenol could be the main poisoning species. The excellent catalytic cleavage performance of mesoNi originates from their unique mesoporous structure, which offers high surface area and Ni active sites. The outstanding catalytic performance shows that this process provides a promising candidate for improved lignin valorization with general applicability.
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12
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Abstract
Energy and fuels derived from biomass pose lesser impact on the environmental carbon footprint than those derived from fossil fuels. In order for the biomass-to-energy and biomass-to-chemicals processes to play their important role in the loop of the circular economy, highly active, selective, and stable catalysts and the related efficient chemical processes are urgently needed. Lignin is the most thermal stable fraction of biomass and a particularly important resource for the production of chemicals and fuels. This mini review mainly focuses on lignin valorizations for renewable chemicals and fuels production and summarizes the recent interest in the lignin valorization over Ni and relevant bimetallic metal catalysts on various supports. Particular attention will be paid to those strategies to convert lignin to chemicals and fuels components, such as pyrolysis, hydrodeoxygenation, and hydrogenolysis. The review is written in a simple and elaborated way in order to draw chemists and engineers’ attention to Ni-based catalysts in lignin valorizations and guide them in designing innovative catalytic materials based on the lignin conversion reaction.
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13
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van Muyden AP, Siankevich S, Yan N, Dyson PJ. Discovery of a Highly Active Catalyst for Hydrogenolysis of C−O Bonds via Systematic, Multi‐metallic Catalyst Screening. ChemCatChem 2019. [DOI: 10.1002/cctc.201900462] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Antoine P. van Muyden
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne Switzerland
| | - Sviatlana Siankevich
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne Switzerland
| | - Ning Yan
- Faculty of EngineeringUniversity of Singapore (NUS) 21 Lower Kent Ridge Road 119077 Singapore
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie ChimiquesÉcole Polytechnique Fédérale de Lausanne (EPFL) CH-1015 Lausanne Switzerland
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14
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Jiang L, Guo H, Li C, Zhou P, Zhang Z. Selective cleavage of lignin and lignin model compounds without external hydrogen, catalyzed by heterogeneous nickel catalysts. Chem Sci 2019; 10:4458-4468. [PMID: 31057773 PMCID: PMC6482439 DOI: 10.1039/c9sc00691e] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 02/22/2019] [Indexed: 01/28/2023] Open
Abstract
Selective hydrogenolysis of the Caryl-O bonds in lignin is a key strategy for the generation of fuels and chemical feedstocks from biomass. Currently, hydrogenolysis has been mainly conducted using hydrogen, which is flammable and not sustainable or economical. Herein, an external hydrogen-free process for aryl ethers hydrogenolysis in lignin models and dioxasolv lignin over nickel nanoparticles supported on Al2O3, is reported. Kinetic studies reveal that the transfer hydrogenolysis activity of the three model compounds decreased in the following order: benzyl phenyl ether (α-O-4), 2-phenylethyl phenyl ether (β-O-4) and diphenyl ether (4-O-5), which linearly corresponds to their binding energies and the activation energies. The main reaction route for the three model compounds was the cleavage of the ether bonds to produce aromatic alkanes and phenol, and the latter was further reduced to cyclohexanol. Dioxasolv lignin depolymerization results exhibit a significant Caryl-O decrease over the Ni nanoparticles supported on Al2O3 with iso-propanol as the hydrogen source through 2D-HSQC-NMR analysis, which confirmed the transfer hydrogenolysis conclusion in the model study. This work provides an economical and environmentally-friendly method for the selective cleavage of lignin and lignin model compounds into value-added chemicals.
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Affiliation(s)
- Liang Jiang
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education , South-Central University for Nationalities , Wuhan , 430074 , China . ; ; Tel: +86-27-67842572
| | - Haiwei Guo
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China .
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Changzhi Li
- State Key Laboratory of Catalysis , Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China .
| | - Peng Zhou
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education , South-Central University for Nationalities , Wuhan , 430074 , China . ; ; Tel: +86-27-67842572
| | - Zehui Zhang
- Key Laboratory of Catalysis and Materials Sciences of the Ministry of Education , South-Central University for Nationalities , Wuhan , 430074 , China . ; ; Tel: +86-27-67842572
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15
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Song Y, Li Z, Ji P, Kaufmann M, Feng X, Chen JS, Wang C, Lin W. Metal–Organic Framework Nodes Support Single-Site Nickel(II) Hydride Catalysts for the Hydrogenolysis of Aryl Ethers. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04611] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yang Song
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Zhe Li
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, P. R. China
| | - Pengfei Ji
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Michael Kaufmann
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Justin S. Chen
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
| | - Cheng Wang
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, P. R. China
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 E. 57th Street, Chicago, Illinois 60637, United States
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16
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Gao X, Zhu S, Li Y. Selective hydrogenolysis of lignin and model compounds to monophenols over AuPd/CeO2. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Guo M, Peng J, Yang Q, Li C. Highly Active and Selective RuPd Bimetallic NPs for the Cleavage of the Diphenyl Ether C–O Bond. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03253] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miao Guo
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Juan Peng
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100039, People’s Republic of China
| | - Qihua Yang
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Can Li
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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18
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Catalytic Strategies Towards Lignin-Derived Chemicals. Top Curr Chem (Cham) 2018; 376:36. [PMID: 30151801 DOI: 10.1007/s41061-018-0214-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/10/2018] [Indexed: 12/16/2022]
Abstract
Lignin valorization represents a crucial, yet underexploited component in current lignocellulosic biorefineries. An alluring opportunity is the selective depolymerization of lignin towards chemicals. Although challenged by lignin's recalcitrant nature, several successful (catalytic) strategies have emerged. This review provides an overview of different approaches to cope with detrimental lignin structural alterations at an early stage of the biorefinery process, thus enabling effective routes towards lignin-derived chemicals. A first general strategy is to isolate lignin with a better preserved native-like structure and therefore an increased amenability towards depolymerization in a subsequent step. Both mild process conditions as well as active stabilization methods will be discussed. An alternative is the simultaneous depolymerization-stabilization of native lignin towards stable lignin monomers. This approach requires a fast and efficient stabilization of reactive lignin intermediates in order to minimize lignin repolymerization and maximize the envisioned production of chemicals. Finally, the obtained lignin-derived compounds can serve as a platform towards a broad range of bio-based products. Their implementation will improve the sustainability of the chemical industry, but equally important will generate opportunities towards product innovations based on unique biobased chemical structures.
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19
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Bäumler C, Kempe R. The Direct Synthesis of Imines, Benzimidazoles and Quinoxalines from Nitroarenes and Carbonyl Compounds by Selective Nitroarene Hydrogenation Employing a Reusable Iron Catalyst. Chemistry 2018; 24:8989-8993. [DOI: 10.1002/chem.201801525] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Christoph Bäumler
- Anorganische Chemie II-Katalysatordesign; Universität Bayreuth; 95440 Bayreuth Germany
| | - Rhett Kempe
- Anorganische Chemie II-Katalysatordesign; Universität Bayreuth; 95440 Bayreuth Germany
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20
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Fang H, Du J, Tian C, Zheng J, Duan X, Ye L, Yuan Y. Regioselective hydrogenolysis of aryl ether C-O bonds by tungsten carbides with controlled phase compositions. Chem Commun (Camb) 2018; 53:10295-10298. [PMID: 28869256 DOI: 10.1039/c7cc05487d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Evenly dispersed tungsten carbides with controlled phase compositions that exhibit an impressive capacity to carry out the regioselective hydrogenolysis of inert aryl ether C-O bonds instead of aliphatic C-O bonds to produce aromatic compounds are reported.
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Affiliation(s)
- Huihuang Fang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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21
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Valentini F, Santillo N, Petrucci C, Lanari D, Petricci E, Taddei M, Vaccaro L. Continuous-Flow Palladium-Catalyzed Synthesis of Cyclohexanones from Phenols using Sodium Formate as a Safe Hydrogen Source. ChemCatChem 2018. [DOI: 10.1002/cctc.201701922] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Federica Valentini
- Laboratory of Green S.O.C. Dipartimento di Chimica, biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italia
| | - Niccolò Santillo
- Dipartimento di Biotecnologie, Chimica e Farmacia; Università degli Studi di Siena; Via A. Moro 2 53100 Siena Italia
| | - Chiara Petrucci
- Laboratory of Green S.O.C. Dipartimento di Chimica, biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italia
| | - Daniela Lanari
- Laboratory of Green S.O.C. Dipartimento di Chimica, biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italia
| | - Elena Petricci
- Dipartimento di Biotecnologie, Chimica e Farmacia; Università degli Studi di Siena; Via A. Moro 2 53100 Siena Italia
| | - Maurizio Taddei
- Dipartimento di Biotecnologie, Chimica e Farmacia; Università degli Studi di Siena; Via A. Moro 2 53100 Siena Italia
| | - Luigi Vaccaro
- Laboratory of Green S.O.C. Dipartimento di Chimica, biologia e Biotecnologie; Università degli Studi di Perugia; Via Elce di Sotto 8 06123 Perugia Italia
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22
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Nitrogen-doped mesoporous SiC materials with catalytically active cobalt nanoparticles for the efficient and selective hydrogenation of nitroarenes. Sci Rep 2018; 8:2567. [PMID: 29416097 PMCID: PMC5803264 DOI: 10.1038/s41598-018-20976-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/26/2018] [Indexed: 11/25/2022] Open
Abstract
Mesoporous nitrogen-doped silicon carbide catalysts with integrated cobalt nanoparticles (Co@N-SiC) were synthesized by the thermal decomposition of a microphase-separated block copolymer of polycarbosilane and polyethylene. The catalysts are highly active, reusable and offer selective hydrogenation of the nitro group in the presence of hydrogenation-sensitive functional groups.
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23
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Polymer supported Nickel nanoparticles as recyclable catalyst for the reduction of nitroarenes to anilines in aqueous medium. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2017.12.015] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Li L, Zheng J, Liu Y, Wang W, Huang Q, Chu W. Impacts of SiC Carrier and Nickel Precursor of NiLa/support Catalysts for CO2
Selective Hydrogenation to Synthetic Natural Gas (SNG). ChemistrySelect 2017. [DOI: 10.1002/slct.201601745] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Le Li
- School of Chemical Engineering; Sichuan University; Chengdu 610065 China
- Institute of New Energy and Low-carbon Technology; Sichuan University; Chengdu 610065, Sichuan China
| | - Jian Zheng
- State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials; Southwest University of Science and Technology; Mianyang 621010 China
| | - Yuefeng Liu
- Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 116023 Dalian China
| | - Wei Wang
- School of Chemical Engineering; Sichuan University; Chengdu 610065 China
| | - Qingsong Huang
- School of Chemical Engineering; Sichuan University; Chengdu 610065 China
| | - Wei Chu
- School of Chemical Engineering; Sichuan University; Chengdu 610065 China
- Institute of New Energy and Low-carbon Technology; Sichuan University; Chengdu 610065, Sichuan China
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25
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Viard A, Fonblanc D, Schmidt M, Lale A, Salameh C, Soleilhavoup A, Wynn M, Champagne P, Cerneaux S, Babonneau F, Chollon G, Rossignol F, Gervais C, Bernard S. Molecular Chemistry and Engineering of Boron-Modified Polyorganosilazanes as New Processable and Functional SiBCN Precursors. Chemistry 2017; 23:9076-9090. [DOI: 10.1002/chem.201700623] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Antoine Viard
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
| | - Diane Fonblanc
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
- Science des Procédés Céramiques et de Traitements de Surface (SPCTS); UMR CNRS 7315; Centre Européen de la Céramique; 12 rue Atlantis 87068 Limoges Cedex France
| | - Marion Schmidt
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
- University of Bordeaux, Laboratoire des Composites ThermoStructuraux (LCTS), UMR 5801; CNRS-Herakles (Safran)-CEA-UBx 3; Allée de La Boétie 33600 Pessac France
| | - Abhijeet Lale
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
| | - Chrystelle Salameh
- Sorbonne Universités; UPMC Univ Paris 06, CNRS; Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris; 75005 Paris France
| | - Anne Soleilhavoup
- Sorbonne Universités; UPMC Univ Paris 06, CNRS; Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris; 75005 Paris France
| | - Mélanie Wynn
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
- Laboratoire de Matériaux Céramiques et Procédés Associés LMCPA; UPRES EA 2443, UVHC-ISTV; 59600 Maubeuge France
| | - Philippe Champagne
- Laboratoire de Matériaux Céramiques et Procédés Associés LMCPA; UPRES EA 2443, UVHC-ISTV; 59600 Maubeuge France
| | - Sophie Cerneaux
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
| | - Florence Babonneau
- Sorbonne Universités; UPMC Univ Paris 06, CNRS; Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris; 75005 Paris France
| | - Georges Chollon
- University of Bordeaux, Laboratoire des Composites ThermoStructuraux (LCTS), UMR 5801; CNRS-Herakles (Safran)-CEA-UBx 3; Allée de La Boétie 33600 Pessac France
| | - Fabrice Rossignol
- Science des Procédés Céramiques et de Traitements de Surface (SPCTS); UMR CNRS 7315; Centre Européen de la Céramique; 12 rue Atlantis 87068 Limoges Cedex France
| | - Christel Gervais
- Sorbonne Universités; UPMC Univ Paris 06, CNRS; Collège de France, UMR 7574; Chimie de la Matière Condensée de Paris; 75005 Paris France
| | - Samuel Bernard
- IEM (Institut Europeen des Membranes); UMR 5635 (CNRS-ENSCM-UM); Universite Montpellier; Place E. Bataillon 34095 Montpellier France
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26
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Chatterjee M, Ishizaka T, Kawanami H. Hydrogenolysis/hydrogenation of diphenyl ether as a model decomposition reaction of lignin from biomass in pressurized CO2/water condition. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.02.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Mukhtar A, Zaheer M, Saeed M, Voelter W. Synthesis of lignin model compound containing a β-O-4 linkage. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2016-0201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Development of catalysts for efficient conversion of lignin polymer to value-added materials requires appropriately-functionalized lignin model compounds. The predominant structural feature of lignin biopolymer is an extensive network of β-O-4 linkages. Access to large amounts of a model compound containing the β-O-4 linkage is crucial for the valorisation of lignin biopolymer to aromatic raw materials. Starting from commercially available vanillin, synthesis of dilignol model compound, containing a β-O-4 linkage, is accomplished in good overall yield.
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Affiliation(s)
- Asma Mukhtar
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Muhammad Zaheer
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Muhammad Saeed
- Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan
| | - Wolfgang Voelter
- Interfakultäres Institut für Biochemie, Eberhard Karls Universität Tübingen, Hoppe-Seyler Straße 4, 72076 Tübingen, Germany
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28
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Sun KK, Lu GP, Zhang JW, Cai C. The selective hydrogenolysis of C–O bonds in lignin model compounds by Pd–Ni bimetallic nanoparticles in ionic liquids. Dalton Trans 2017; 46:11884-11889. [DOI: 10.1039/c7dt02498c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
β-O-4 and α-O-4 linkages can be selectively cleaved by Pd–Ni bimetallic nanoparticles in ionic liquids using hydrogen gas as the hydrogen donor under ambient pressure and neutral conditions.
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Affiliation(s)
- Kang-kang Sun
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Guo-ping Lu
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Jia-wei Zhang
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science & Technology
- Nanjing 210094
- P. R. China
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29
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Schwob T, Kempe R. Ein wiederverwendbarer Cobaltkatalysator für die selektive Hydrierung von funktionalisierten Nitroarenen und die direkte Synthese von Iminen und Benzimidazolen aus Nitroarenen und Aldehyden. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608321] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Tobias Schwob
- Anorganische Chemie II - Katalysatordesign; Universität Bayreuth; 95440 Bayreuth Deutschland
| | - Rhett Kempe
- Anorganische Chemie II - Katalysatordesign; Universität Bayreuth; 95440 Bayreuth Deutschland
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30
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Schwob T, Kempe R. A Reusable Co Catalyst for the Selective Hydrogenation of Functionalized Nitroarenes and the Direct Synthesis of Imines and Benzimidazoles from Nitroarenes and Aldehydes. Angew Chem Int Ed Engl 2016; 55:15175-15179. [PMID: 27797434 DOI: 10.1002/anie.201608321] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Indexed: 02/03/2023]
Abstract
The use of abundantly available transition metals in reactions that have been preferentially mediated by rare noble metals, for example, hydrogenations, is a desirable aim in catalysis and an attractive strategy for element conservation. The observation of novel selectivity patterns with such inexpensive metal catalysts is especially appealing. Herein, we report a novel, robust, and reusable cobalt catalyst that permits the selective hydrogenation of nitroarenes in the presence of highly hydrogenation-sensitive functional groups, as well as the direct synthesis of imines from nitroarenes and aldehydes or ketones in the presence of such substituents. Furthermore, we introduce the first base-metal-mediated direct synthesis of benzimidazoles from nitroarenes and aldehydes. Functional groups that are easy to hydrogenate are again well tolerated.
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Affiliation(s)
- Tobias Schwob
- Anorganische Chemie II - Katalysatordesign, Universität Bayreuth, 95440, Bayreuth, Germany
| | - Rhett Kempe
- Anorganische Chemie II - Katalysatordesign, Universität Bayreuth, 95440, Bayreuth, Germany
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31
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Cui X, Junge K, Beller M. Palladium-Catalyzed Synthesis of Alkylated Amines from Aryl Ethers or Phenols. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01687] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Xinjiang Cui
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Str.
29a, 18059, Rostock, Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Str.
29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Str.
29a, 18059, Rostock, Germany
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32
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Gao F, Webb JD, Sorek H, Wemmer DE, Hartwig JF. Fragmentation of Lignin Samples with Commercial Pd/C under Ambient Pressure of Hydrogen. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02028] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fang Gao
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jonathan D. Webb
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Hagit Sorek
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - David E. Wemmer
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - John F. Hartwig
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
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33
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Urgoitia G, SanMartin R, Herrero MT, Domínguez E. Vanadium-Catalyzed Oxidative Debenzylation ofO-Benzyl Ethers at ppm Level. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600593] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Garazi Urgoitia
- Department of Organic Chemistry II; Faculty of Science and Technology; University of the Basque Country (UPV/EHU); Sarriena auzoa z/g 48940 Leioa Spain
| | - Raul SanMartin
- Department of Organic Chemistry II; Faculty of Science and Technology; University of the Basque Country (UPV/EHU); Sarriena auzoa z/g 48940 Leioa Spain
| | - María Teresa Herrero
- Department of Organic Chemistry II; Faculty of Science and Technology; University of the Basque Country (UPV/EHU); Sarriena auzoa z/g 48940 Leioa Spain
| | - Esther Domínguez
- Department of Organic Chemistry II; Faculty of Science and Technology; University of the Basque Country (UPV/EHU); Sarriena auzoa z/g 48940 Leioa Spain
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34
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Hahn G, Ewert JK, Denner C, Tilgner D, Kempe R. A Reusable Mesoporous Nickel Nanocomposite Catalyst for the Selective Hydrogenation of Nitroarenes in the Presence of Sensitive Functional Groups. ChemCatChem 2016. [DOI: 10.1002/cctc.201600391] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gabriela Hahn
- Lehrstuhl Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | | | - Christine Denner
- Lehrstuhl Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | - Dominic Tilgner
- Lehrstuhl Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
| | - Rhett Kempe
- Lehrstuhl Anorganische Chemie II; Universität Bayreuth; 95440 Bayreuth Germany
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35
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Highly selective hydrogenation of arenes using nanostructured ruthenium catalysts modified with a carbon-nitrogen matrix. Nat Commun 2016; 7:11326. [PMID: 27113087 PMCID: PMC4853427 DOI: 10.1038/ncomms11326] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Accepted: 03/16/2016] [Indexed: 12/22/2022] Open
Abstract
Selective hydrogenations of (hetero)arenes represent essential processes in the chemical industry, especially for the production of polymer intermediates and a multitude of fine chemicals. Herein, we describe a new type of well-dispersed Ru nanoparticles supported on a nitrogen-doped carbon material obtained from ruthenium chloride and dicyanamide in a facile and scalable method. These novel catalysts are stable and display both excellent activity and selectivity in the hydrogenation of aromatic ethers, phenols as well as other functionalized substrates to the corresponding alicyclic reaction products. Furthermore, reduction of the aromatic core is preferred over hydrogenolysis of the C–O bond in the case of ether substrates. The selective hydrogenation of biomass-derived arenes, such as lignin building blocks, plays a pivotal role in the exploitation of novel sustainable feedstocks for chemical production and represents a notoriously difficult transformation up to now. The selective reduction of arenes is important in organic synthesis and also valorization of biomass. Here, the authors report the use of ruthenium-based nanoparticles, which display high activity in arene reduction and preferentially hydrogenate aromatic rings rather than cleaving etheric C-O bonds.
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36
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Cozzula D, Vinci A, Mauriello F, Pietropaolo R, Müller TE. Directing the Cleavage of Ester C−O Bonds by Controlling the Hydrogen Availability on the Surface of Coprecipitated Pd/Fe3
O4. ChemCatChem 2016. [DOI: 10.1002/cctc.201501414] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daniela Cozzula
- CAT Catalytic Center; RWTH Aachen University; Worringerweg 2 52074 Aachen Germany
| | - Alessandro Vinci
- Department of Civil Engineering, Energy, Environment and Materials (DICEAM); Universita' Mediterranea di Reggio Calabria; loc. Feo di Vito- 89122 Reggio Calabria Italy
| | - Francesco Mauriello
- Department of Civil Engineering, Energy, Environment and Materials (DICEAM); Universita' Mediterranea di Reggio Calabria; loc. Feo di Vito- 89122 Reggio Calabria Italy
| | - Rosario Pietropaolo
- Department of Civil Engineering, Energy, Environment and Materials (DICEAM); Universita' Mediterranea di Reggio Calabria; loc. Feo di Vito- 89122 Reggio Calabria Italy
| | - Thomas E. Müller
- CAT Catalytic Center; RWTH Aachen University; Worringerweg 2 52074 Aachen Germany
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37
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Molinari V, Clavel G, Graglia M, Antonietti M, Esposito D. Mild Continuous Hydrogenolysis of Kraft Lignin over Titanium Nitride–Nickel Catalyst. ACS Catal 2016. [DOI: 10.1021/acscatal.5b01926] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Valerio Molinari
- Max-Planck-Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Guylhaine Clavel
- Max-Planck-Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Micaela Graglia
- Max-Planck-Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Markus Antonietti
- Max-Planck-Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Davide Esposito
- Max-Planck-Institute of Colloids and Interfaces, 14424 Potsdam, Germany
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38
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Kruger JS, Cleveland NS, Zhang S, Katahira R, Black BA, Chupka GM, Lammens T, Hamilton PG, Biddy MJ, Beckham GT. Lignin Depolymerization with Nitrate-Intercalated Hydrotalcite Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02062] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | | | | | | | | | | | - Tijs Lammens
- Shell Global Solutions, Inc., Shell Technology Center, Houston, Texas 77082, United States
| | - Phillip G. Hamilton
- Shell Global Solutions, Inc., Shell Technology Center, Amsterdam, Netherlands
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39
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Bernard S, Salameh C, Miele P. Boron nitride ceramics from molecular precursors: synthesis, properties and applications. Dalton Trans 2016; 45:861-73. [DOI: 10.1039/c5dt03633j] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hexagonal boron nitride (h-BN) attracts considerable interest particularly when it is prepared from borazine-based single-source precursors through chemical routes suitable for the shaping and the nanostructuration of the final ceramic.
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Affiliation(s)
- Samuel Bernard
- Institut Européen des membranes
- IEM
- UMR-5635
- Université de Montpellier
- 34095 Montpellier cedex 5
| | - Chrystelle Salameh
- Institut Européen des membranes
- IEM
- UMR-5635
- Université de Montpellier
- 34095 Montpellier cedex 5
| | - Philippe Miele
- Institut Européen des membranes
- IEM
- UMR-5635
- Université de Montpellier
- 34095 Montpellier cedex 5
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40
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Irum M, Zaheer M, Friedrich M, Kempe R. Mesoporous silica nanosphere supported platinum nanoparticles (Pt@MSN): one-pot synthesis and catalytic hydrogen generation. RSC Adv 2016. [DOI: 10.1039/c5ra25243a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One-pot synthesis of mesoporous silica nanosphere (MSN) supported platinum nanoparticles (NPs) as catalysts for hydrogen generation from alkaline sodium borohydride is reported.
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Affiliation(s)
- Maria Irum
- Department of Chemistry
- SBA School of Science and Engineering (SBASSE)
- Lahore University of Management Sciences (LUMS)
- Lahore 54792
- Pakistan
| | - Muhammad Zaheer
- Department of Chemistry
- SBA School of Science and Engineering (SBASSE)
- Lahore University of Management Sciences (LUMS)
- Lahore 54792
- Pakistan
| | | | - Rhett Kempe
- Anorganische Chemie II
- Universität Bayreuth
- Bayreuth 95447
- Germany
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41
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Fehn S, Zaheer M, Denner CE, Friedrich M, Kempe R. Robustly supported rhodium nanoclusters: synthesis and application in selective hydrogenation of lignin derived phenolic compounds. NEW J CHEM 2016. [DOI: 10.1039/c6nj01974a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh@SiCN catalysts synthesized using a one-pot process afford selective hydrogenation of phenolic compounds.
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Affiliation(s)
- Sonja Fehn
- Inorganic Chemistry II
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Muhammad Zaheer
- Department of Chemistry
- SBA School of Science and Engineering
- Lahore University of Management Sciences (LUMS)
- 54792 Lahore
- Pakistan
| | | | - Martin Friedrich
- Inorganic Chemistry II
- University of Bayreuth
- 95440 Bayreuth
- Germany
| | - Rhett Kempe
- Inorganic Chemistry II
- University of Bayreuth
- 95440 Bayreuth
- Germany
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42
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Wang Y, De S, Yan N. Rational control of nano-scale metal-catalysts for biomass conversion. Chem Commun (Camb) 2016; 52:6210-24. [DOI: 10.1039/c6cc00336b] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This feature article discusses the rational control of nano-scale metal catalysts for catalytic biomass transformation.
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Affiliation(s)
- Yunzhu Wang
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Sudipta De
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
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43
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Gao F, Webb JD, Hartwig JF. Chemo‐ and Regioselective Hydrogenolysis of Diaryl Ether C−O Bonds by a Robust Heterogeneous Ni/C Catalyst: Applications to the Cleavage of Complex Lignin‐Related Fragments. Angew Chem Int Ed Engl 2015; 55:1474-8. [DOI: 10.1002/anie.201509133] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/12/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Fang Gao
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - Jonathan D. Webb
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - John F. Hartwig
- Department of Chemistry University of California Berkeley CA 94720 USA
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44
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Gao F, Webb JD, Hartwig JF. Chemo‐ and Regioselective Hydrogenolysis of Diaryl Ether C−O Bonds by a Robust Heterogeneous Ni/C Catalyst: Applications to the Cleavage of Complex Lignin‐Related Fragments. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509133] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fang Gao
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - Jonathan D. Webb
- Department of Chemistry University of California Berkeley CA 94720 USA
| | - John F. Hartwig
- Department of Chemistry University of California Berkeley CA 94720 USA
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45
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Graglia M, Kanna N, Esposito D. Lignin Refinery: Towards the Preparation of Renewable Aromatic Building Blocks. CHEMBIOENG REVIEWS 2015. [DOI: 10.1002/cben.201500019] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Schwarz S, Friedrich M, Motz G, Kempe R. Synthesis of Hierarchically Porous SiCN Materials and Pd Catalysts based on it for the Oxidation of Methane. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201500559] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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47
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Selective activation of the C–O bonds in lignocellulosic biomass for the efficient production of chemicals. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60923-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Ceramic Nanocomposites from Tailor-Made Preceramic Polymers. NANOMATERIALS 2015; 5:468-540. [PMID: 28347023 PMCID: PMC5312884 DOI: 10.3390/nano5020468] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 03/13/2015] [Accepted: 03/15/2015] [Indexed: 11/25/2022]
Abstract
The present Review addresses current developments related to polymer-derived ceramic nanocomposites (PDC-NCs). Different classes of preceramic polymers are briefly introduced and their conversion into ceramic materials with adjustable phase compositions and microstructures is presented. Emphasis is set on discussing the intimate relationship between the chemistry and structural architecture of the precursor and the structural features and properties of the resulting ceramic nanocomposites. Various structural and functional properties of silicon-containing ceramic nanocomposites as well as different preparative strategies to achieve nano-scaled PDC-NC-based ordered structures are highlighted, based on selected ceramic nanocomposite systems. Furthermore, prospective applications of the PDC-NCs such as high-temperature stable materials for thermal protection systems, membranes for hot gas separation purposes, materials for heterogeneous catalysis, nano-confinement materials for hydrogen storage applications as well as anode materials for secondary ion batteries are introduced and discussed in detail.
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49
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Zaheer M, Kempe R. Catalytic Hydrogenolysis of Aryl Ethers: A Key Step in Lignin Valorization to Valuable Chemicals. ACS Catal 2015. [DOI: 10.1021/cs501498f] [Citation(s) in RCA: 180] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Muhammad Zaheer
- Department
of Chemistry, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan
| | - Rhett Kempe
- Lehrstuhl
Anorganische Chemie II - Catalyst Design, Universität Bayreuth, 95440 Bayreuth, Germany
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50
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Konnerth H, Zhang J, Ma D, Prechtl MH, Yan N. Base promoted hydrogenolysis of lignin model compounds and organosolv lignin over metal catalysts in water. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.10.045] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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