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da Silva MAR, Tarakina NV, Filho JBG, Cunha CS, Rocha GFSR, Diab GAA, Ando RA, Savateev O, Agirrezabal-Telleria I, Silva IF, Stolfi S, Ghigna P, Fagnoni M, Ravelli D, Torelli P, Braglia L, Teixeira IF. Single-Atoms on Crystalline Carbon Nitrides for Selective C─H Photooxidation: A Bridge to Achieve Homogeneous Pathways in Heterogeneous Materials. Adv Mater 2023; 35:e2304152. [PMID: 37986204 DOI: 10.1002/adma.202304152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/15/2023] [Indexed: 11/22/2023]
Abstract
Single-atom catalysis is a field of paramount importance in contemporary science due to its exceptional ability to combine the domains of homogeneous and heterogeneous catalysis. Iron and manganese metalloenzymes are known to be effective in C─H oxidation reactions in nature, inspiring scientists to mimic their active sites in artificial catalytic systems. Herein, a simple and versatile cation exchange method is successfully employed to stabilize low-cost iron and manganese single-atoms in poly(heptazine imides) (PHI). The resulting materials are employed as photocatalysts for toluene oxidation, demonstrating remarkable selectivity toward benzaldehyde. The protocol is then extended to the selective oxidation of different substrates, including (substituted) alkylaromatics, benzyl alcohols, and sulfides. Detailed mechanistic investigations revealed that iron- and manganese-containing photocatalysts work through a similar mechanism via the formation of high-valent M═O species. Operando X-ray absorption spectroscopy (XAS) is employed to confirm the formation of high-valent iron- and manganese-oxo species, typically found in metalloenzymes involved in highly selective C─H oxidations.
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Affiliation(s)
- Marcos A R da Silva
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Nadezda V Tarakina
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - José B G Filho
- Department of Chemistry, ICEx, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Carla S Cunha
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Guilherme F S R Rocha
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Gabriel A A Diab
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Rômulo Augusto Ando
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, Brazil
| | - Oleksandr Savateev
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering of the Bilbao Engineering School, University of Basque Country (UPV/EHU), Plaza Torres Quevedo 1, Bilbao, 48013, Spain
| | - Ingrid F Silva
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - Sara Stolfi
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Paolo Ghigna
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Maurizio Fagnoni
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Davide Ravelli
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Piero Torelli
- TASC Laboratory, CNR-IOM, Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Luca Braglia
- TASC Laboratory, CNR-IOM, Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Ivo F Teixeira
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
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Barranca A, Gandarias I, Arias PL, Agirrezabal-Telleria I. One-Pot Production of 1,5-Pentanediol from Furfural Through Tailored Hydrotalcite-Based Catalysts. Catal Letters 2022. [DOI: 10.1007/s10562-022-04144-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractThe one-pot production of a relevant chemical such as 1,5-pentanediol (1,5-PDO) from sustainable sources (furfural) is a key reaction to compete with existing fossil sources. This work provides new evidence on the influence of the starting reagent, the features of layered double hydrotalcite (LDH)-derived catalysts in the form of mixed metal oxides (MMO) and of reaction conditions on the productivity of 1,5-PDO under batch conditions. Unlike reported studies, these results suggest the direct pathway through furfuryl alcohol intermediates, allowing the one-pot production from furfural at lower temperature than analogous systems. Productivity is maximized when Co2+ species partially substitute Mg2+ species in parent LDH, yielding promising pentanediol yields under mild reaction conditions. MMOs containing Co2+ sites show marked differences compared to analogous bivalent metals, which is here attributed to the position in which reaction intermediates such as furfuryl alcohol are adsorbed onto surface specie. This is consistent with characterized surface species by XRD, temperature programmed reduction under H2, and chemisorption experiments using CO or CO2 as probe molecules, indicative of a proper balance between metal and basic sites onto MMOs. The reported data aim to provide new reaction evidence to contribute into the search of sustainable 1,5-PDO sources.
Graphical Abstract
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Heinz WR, Agirrezabal-Telleria I, Junk R, Berger J, Wang J, Sharapa DI, Gil-Calvo M, Luz I, Soukri M, Studt F, Wang Y, Wöll C, Bunzen H, Drees M, Fischer RA. Thermal Defect Engineering of Precious Group Metal-Organic Frameworks: A Case Study on Ru/Rh-HKUST-1 Analogues. ACS Appl Mater Interfaces 2020; 12:40635-40647. [PMID: 32791827 DOI: 10.1021/acsami.0c10721] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A methodology is introduced for controlled postsynthetic thermal defect engineering (TDE) of precious group metal-organic frameworks (PGM-MOFs). The case study is based on the Ru/Rh analogues of the archetypical structure [Cu3(BTC)2] (HKUST-1; BTC = 1,3,5-benzenetricarboxylate). Quantitative monitoring of the TDE process and extensive characterization of the samples employing a complementary set of analytical and spectroscopic techniques reveal that the compositionally very complex TDE-MOF materials result from the elimination and/or fragmentation of ancillary ligands and/or linkers. TDE involves the preferential secession of acetate ligands, intrinsically introduced via coordination modulation during synthesis, and the gradual decarboxylation of ligator sites of the framework linker BTC. Both processes lead to modified Ru/Rh paddlewheel nodes. These nodes exhibit a lowered average oxidation state and more accessible open metal centers, as deduced from surface-ligand IR spectroscopy using CO as a probe and supported by density functional theory (DFT)-based computations. The monometallic and the mixed-metal PGM-MOFs systematically differ in their TDE properties and, in particular in the hydride generation ability (HGA). This latter property is an important indicator for the catalytic activity of PGM-MOFs, as demonstrated by the ethylene dimerization reaction to 1-butene.
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Affiliation(s)
- Werner R Heinz
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), Lichtenbergstraße 4, 85748 Garching, Germany
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - Raphael Junk
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), Lichtenbergstraße 4, 85748 Garching, Germany
| | - Jan Berger
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), Lichtenbergstraße 4, 85748 Garching, Germany
| | | | | | - Miryam Gil-Calvo
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - Ignacio Luz
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, Durham, North Carolina 27709, United States
| | - Mustapha Soukri
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, Durham, North Carolina 27709, United States
| | | | | | | | - Hana Bunzen
- Chair of Solid-State and Materials Chemistry, Institute of Physics, University of Augsburg, Universitätsstraße 1, 86159 Augsburg, Germany
| | - Markus Drees
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), Lichtenbergstraße 4, 85748 Garching, Germany
| | - Roland A Fischer
- Department of Chemistry, Chair of Inorganic and Metal-Organic Chemistry, Technical University of Munich (TUM), Lichtenbergstraße 4, 85748 Garching, Germany
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Heinz WR, Junk R, Agirrezabal-Telleria I, Bueken B, Bunzen H, Gölz T, Cokoja M, De Vos D, Fischer RA. Thermal defect engineering of precious group metal–organic frameworks: impact on the catalytic cyclopropanation reaction. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01479f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This work highlights the catalytic cyclopropanation and its characteristics as a novel analytical tool to investigate complex MOF structures.
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Affiliation(s)
- Werner R. Heinz
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Raphael Junk
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- 48013 Bilbao
- Spain
| | - Bart Bueken
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Hana Bunzen
- Chair of Solid State and Materials Chemistry
- Institute of Physics
- University of Augsburg
- D-86159 Augsburg
- Germany
| | - Thorsten Gölz
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Mirza Cokoja
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
| | - Dirk De Vos
- Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions
- Department of Microbial and Molecular Systems (M2S)
- KU Leuven
- 3001 Leuven
- Belgium
| | - Roland A. Fischer
- Chair of Inorganic and Metal-Organic Chemistry
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- D-85747 Garching bei München
- Germany
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Oregui-Bengoechea M, Agirre I, Iriondo A, Lopez-Urionabarrenechea A, Requies JM, Agirrezabal-Telleria I, Bizkarra K, Barrio VL, Cambra JF. Heterogeneous Catalyzed Thermochemical Conversion of Lignin Model Compounds: An Overview. Top Curr Chem (Cham) 2019; 377:36. [PMID: 31728773 DOI: 10.1007/s41061-019-0260-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 10/18/2019] [Indexed: 02/08/2023]
Abstract
Thermochemical lignin conversion processes can be described as complex reaction networks involving not only de-polymerization and re-polymerization reactions, but also chemical transformations of the depolymerized mono-, di-, and oligomeric compounds. They typically result in a product mixture consisting of a gaseous, liquid (i.e., mono-, di-, and oligomeric products), and solid phase. Consequently, researchers have developed a common strategy to simplify this issue by replacing lignin with simpler, but still representative, lignin model compounds. This strategy is typically applied to the elucidation of reaction mechanisms and the exploration of novel lignin conversion approaches. In this review, we present a general overview of the latest advances in the principal thermochemical processes applied for the conversion of lignin model compounds using heterogeneous catalysts. This review focuses on the most representative lignin conversion methods, i.e., reductive, oxidative, pyrolytic, and hydrolytic processes. An additional subchapter on the reforming of pyrolysis oil model compounds has also been included. Special attention will be given to those research papers using "green" reactants (i.e., H2 or renewable hydrogen donor molecules in reductive processes or air/O2 in oxidative processes) and solvents, although less environmentally friendly chemicals will be also considered. Moreover, the scope of the review is limited to those most representative lignin model compounds and to those reaction products that are typically targeted in lignin valorization.
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Affiliation(s)
- Mikel Oregui-Bengoechea
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain.
| | - Ion Agirre
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Aitziber Iriondo
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Alexander Lopez-Urionabarrenechea
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Jesus M Requies
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Kepa Bizkarra
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - V Laura Barrio
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
| | - Jose F Cambra
- Department of Chemical and Environmental Engineering, School of Engineering, University of the Basque Country EHU/UPV, Plaza Ingeniero Torres Quevedo 1, 48013, Bilbao, Spain
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Agirrezabal-Telleria I, Luz I, Ortuño MA, Oregui-Bengoechea M, Gandarias I, López N, Lail MA, Soukri M. Gas reactions under intrapore condensation regime within tailored metal-organic framework catalysts. Nat Commun 2019; 10:2076. [PMID: 31061386 PMCID: PMC6502813 DOI: 10.1038/s41467-019-10013-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 04/11/2019] [Indexed: 11/18/2022] Open
Abstract
Production of 1-butene, a major monomer in polymer industry, is dominated by homogeneous protocols via ethylene dimerization. Homogeneous catalysts can achieve high selectivity but require large amounts of activators and solvents, and exhibit poor recyclability; in turn, heterogeneous systems are robust but lack selectivity. Here we show how the precise engineering of metal–organic frameworks (MOFs) holds promise for a sustainable process. The key to the (Ru)HKUST-1 MOF activity is the intrapore reactant condensation that enhances ethylene dimerization with high selectivity (> 99% 1-butene) and high stability (> 120 h) in the absence of activators and solvents. According to spectroscopy, kinetics, and modeling, the engineering of defective nodes via controlled thermal approaches rules the activity, while intrapore ethylene condensation accounts for selectivity and stability. The combination of well-defined actives sites with the concentration effect arising from condensation regimes paves the way toward the development of robust MOF catalysts for diverse gas-phase reactions. The search for robust heterogeneous catalysts for the production of linear α-olefins is still a challenge as they do not show well-defined sites and lack the high selectivity reported for homogeneous counterparts. Here the authors show how the precise engineering of metal–organic frameworks (MOFs) holds promise for a sustainable process.
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Affiliation(s)
- Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013, Bilbao, Spain.
| | - Ignacio Luz
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC, 27709, USA
| | - Manuel A Ortuño
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.
| | - Mikel Oregui-Bengoechea
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013, Bilbao, Spain
| | - Iñaki Gandarias
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (UPV/EHU), Plaza Torres Quevedo 1, 48013, Bilbao, Spain
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Marty A Lail
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC, 27709, USA
| | - Mustapha Soukri
- RTI International, 3040 E Cornwallis Road, Research Triangle Park, NC, 27709, USA.
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Agirrezabal-Telleria I, Iglesia E. Stabilization of active, selective, and regenerable Ni-based dimerization catalysts by condensation of ethene withinordered mesopores. J Catal 2017. [DOI: 10.1016/j.jcat.2017.06.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Wang S, Agirrezabal-Telleria I, Bhan A, Simonetti D, Takanabe K, Iglesia E. Catalytic routes to fuels from C1 and oxygenate molecules. Faraday Discuss 2017; 197:9-39. [DOI: 10.1039/c7fd00018a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This account illustrates concepts in chemical kinetics underpinned by the formalism of transition state theory using catalytic processes that enable the synthesis of molecules suitable as fuels from C1 and oxygenate reactants. Such feedstocks provide an essential bridge towards a carbon-free energy future, but their volatility and low energy density require the formation of new C–C bonds and the removal of oxygen. These transformations are described here through recent advances in our understanding of the mechanisms and site requirements in catalysis by surfaces, with emphasis on enabling concepts that tackle ubiquitous reactivity and selectivity challenges. The hurdles in forming the first C–C bond from C1 molecules are illustrated by the oxidative coupling of methane, in which surface O-atoms form OH radicals from O2 and H2O molecules. These gaseous OH species act as strong H-abstractors and activate C–H bonds with earlier transition states than oxide surfaces, thus rendering activation rates less sensitive to the weaker C–H bonds in larger alkane products than in CH4 reactants. Anhydrous carbonylation of dimethyl ether forms a single C–C bond on protons residing within inorganic voids that preferentially stabilize the kinetically-relevant transition state through van der Waals interactions that compensate for the weak CO nucleophile. Similar solvation effects, but by intrapore liquids instead of inorganic hosts, also become evident as alkenes condense within MCM-41 channels containing isolated Ni2+ active sites during dimerization reactions. Intrapore liquids preferentially stabilize transition states for C–C bond formation and product desorption, leading to unprecedented reactivity and site stability at sub-ambient temperatures and to 1-alkene dimer selectivities previously achieved only on organometallic systems with co-catalysts or activators. C1 homologation selectively forms C4 and C7 chains with a specific backbone (isobutane, triptane) on solid acids, because of methylative growth and hydride transfer rates that reflect the stability of their carbenium ion transition states and are unperturbed by side reactions at low temperatures. Aldol condensation of carbonyl compounds and ketonization of carboxylic acids form new C–C bonds concurrently with O-removal. These reactions involve analogous elementary steps and occur on acid–base site pairs on TiO2 and ZrO2 catalysts. Condensations are limited by α-H abstraction to form enolates via concerted interactions with predominantly unoccupied acid–base pairs. Ketonization is mediated instead by C–C bond formation between hydroxy-enolates and monodentate carboxylates on site pairs nearly saturated by carboxylates. Both reactions are rendered practical through bifunctional strategies, in which H2 and a Cu catalyst function scavenge unreactive intermediates, prevent sequential reactions and concomitant deactivation, and remove thermodynamic bottlenecks. Alkanal–alkene Prins condensations on solid acids occur concurrently with alkene dimerization and form molecules with new C–C bonds as skeletal isomers unattainable by other routes. Their respective transition states are of similar size, leading to selectivities that cannot sense the presence of a confining host. Prins condensation reactions benefit from weaker acid sites because their transition states are less charged than those for oligomerization and consequently less sensitive to conjugate anions that become less stable as acids weaken.
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Affiliation(s)
- Shuai Wang
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
| | - Iker Agirrezabal-Telleria
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
| | - Aditya Bhan
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
| | - Dante Simonetti
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
| | - Kazuhiro Takanabe
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
| | - Enrique Iglesia
- Department of Chemical Engineering
- University of California at Berkeley
- Chemical Sciences Division
- E. O. Lawrence Berkeley National Laboratory
- Berkeley
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9
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Agirrezabal-Telleria I, Miletić N, Arias PL. Regeneration of surface acid sites via mild oxidation on dehydration catalysts. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00510a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports novel experimental evidence for the use of mild oxidation conditions to remove humin deposits on active xylose dehydration catalysts that showed deactivation.
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Affiliation(s)
- I. Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- Bilbao
- Spain
| | - N. Miletić
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- Bilbao
- Spain
| | - P. L. Arias
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- Bilbao
- Spain
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10
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Miletić N, Izquierdo U, Obregón I, Bizkarra K, Agirrezabal-Telleria I, Bario LV, Arias PL. Oxidative steam reforming of methane over nickel catalysts supported on Al2O3–CeO2–La2O3. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01438c] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel supported on Al2O3–CeO2–La2O3 provided excellent catalytic features and high coking resistance in oxidative steam reforming of methane.
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Affiliation(s)
- N. Miletić
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - U. Izquierdo
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - I. Obregón
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - K. Bizkarra
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - I. Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - L. V. Bario
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
| | - P. L. Arias
- Department of Chemical and Environmental Engineering
- School of Engineering
- University of the Basque Country (EHU/UPV)
- 48013 Bilbao
- Spain
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11
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Hemmann F, Agirrezabal-Telleria I, Jaeger C, Kemnitz E. Quantification of acidic sites of nanoscopic hydroxylated magnesium fluorides by FTIR and 15N MAS NMR spectroscopy. RSC Adv 2015. [DOI: 10.1039/c5ra15116c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A new method is described for the calculation of molar extinction coefficients for quantitative FTIR measurements of acidic surface sites.
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Affiliation(s)
- Felix Hemmann
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
- BAM Federal Institute for Materials Research and Testing
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- 48013 Bilbao
- Spain
| | - Christian Jaeger
- BAM Federal Institute for Materials Research and Testing
- Division 1
- D-12489 Berlin
- Germany
| | - Erhard Kemnitz
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
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12
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Alonso-Fagúndez N, Agirrezabal-Telleria I, Arias PL, Fierro JLG, Mariscal R, Granados ML. Aqueous-phase catalytic oxidation of furfural with H2O2: high yield of maleic acid by using titanium silicalite-1. RSC Adv 2014. [DOI: 10.1039/c4ra11563e] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Agirrezabal-Telleria I, Gandarias I, Arias P. Heterogeneous acid-catalysts for the production of furan-derived compounds (furfural and hydroxymethylfurfural) from renewable carbohydrates: A review. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.11.027] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Agirrezabal-Telleria I, Guo Y, Hemmann F, Arias PL, Kemnitz E. Dehydration of xylose and glucose to furan derivatives using bifunctional partially hydroxylated MgF2 catalysts and N2-stripping. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00129j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The current furfural production yield is low due to the use of non-selective homogeneous catalysts and expensive separation.
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Affiliation(s)
- I. Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- Bilbao, Spain
| | - Y. Guo
- Institut für Chemie
- Humboldt-Universität zu Berlin
- Berlin, Germany
| | - F. Hemmann
- BAM Federal Institute for Materials Research and Testing
- Berlin, Germany
| | - P. L. Arias
- Department of Chemical and Environmental Engineering
- Engineering School of the University of the Basque Country (UPV/EHU)
- Bilbao, Spain
| | - E. Kemnitz
- Institut für Chemie
- Humboldt-Universität zu Berlin
- Berlin, Germany
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Agirrezabal-Telleria I, Gandarias I, Arias PL. Production of furfural from pentosan-rich biomass: analysis of process parameters during simultaneous furfural stripping. Bioresour Technol 2013; 143:258-264. [PMID: 23810948 DOI: 10.1016/j.biortech.2013.05.082] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 05/20/2013] [Accepted: 05/21/2013] [Indexed: 06/02/2023]
Abstract
Among the furan-based compounds, furfural (FUR) shows interesting properties as building-block or industrial solvent. It is produced from pentosan-rich biomass via xylose cyclodehydration. The current FUR production makes use of homogeneous catalysts and excessive amounts of steam. The development of greener furfural production and separation techniques implies the use of heterogeneous catalysts and innovative separation processes. This work deals with the conversion of corncobs as xylose source to be dehydrated to furfural. The results reveal differences between the use of direct corncob hydrolysis and dehydration to furfural and the prehydrolysis and dehydration procedures. Moreover, this work focuses on an economical analysis of the main process parameters during N2-stripping and its economical comparison to the current steam-stripping process. The results show a considerable reduction of the annual utility costs due to use of recyclable nitrogen and the reduction of the furfural purification stages.
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Affiliation(s)
- I Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country (EHU/UPV), Alameda Urquijo s/n, 48013 Bilbao, Spain.
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Agirrezabal-Telleria I, Hemmann F, Jäger C, Arias P, Kemnitz E. Functionalized partially hydroxylated MgF2 as catalysts for the dehydration of d-xylose to furfural. J Catal 2013. [DOI: 10.1016/j.jcat.2013.05.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Agirrezabal-Telleria I, Larreategui A, Requies J, Güemez MB, Arias PL. Furfural production from xylose using sulfonic ion-exchange resins (Amberlyst) and simultaneous stripping with nitrogen. Bioresour Technol 2011; 102:7478-7485. [PMID: 21624830 DOI: 10.1016/j.biortech.2011.05.015] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 05/06/2011] [Accepted: 05/08/2011] [Indexed: 05/30/2023]
Abstract
The aim of this work deals with the development of new approaches to the production of furfural from xylose. It combines relatively cheap heterogeneous catalysts (Amberlyst 70) with simultaneous furfural stripping using nitrogen under semi-batch conditions. Nitrogen, compared to steam, does not dilute the vapor phase stream when condensed. This system allowed stripping 65% of the furfural converted from xylose and almost 100% of selectivity in the condensate. Moreover, high initial xylose loadings led to the formation of two water-furfural phases, which could reduce further purification costs. Constant liquid-vapor equilibrium along stripping could be maintained for different xylose loadings. The modeling of the experimental data was carried out in order to obtain a liquid-vapor mass-transfer coefficient. This value could be used for future studies under steady-state continuous conditions in similar reaction-systems.
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Affiliation(s)
- I Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering, Engineering School of the University of the Basque Country, Alameda Urquijo s/n, Bilbao 48013, Spain.
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