1
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Mononuclear Oxidovanadium(IV) Complexes with BIAN Ligands: Synthesis and Catalytic Activity in the Oxidation of Hydrocarbons and Alcohols with Peroxides. Catalysts 2022. [DOI: 10.3390/catal12101168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reactions of VCl3 with 1,2-Bis[(4-methylphenyl)imino]acenaphthene (4-Me-C6H4-bian) or 1,2-Bis[(2-methylphenyl)imino]acenaphthene (2-Me-C6H4-bian) in air lead to the formation of [VOCl2(R-bian)(H2O)] (R = 4-Me-C6H4 (1), 2-Me-C6H4 (2)). Thes complexes were characterized by IR and EPR spectroscopy as well as elemental analysis. Complexes 1 and 2 have high catalytic activity in the oxidation of hydrocarbons with hydrogen peroxide and alcohols with tert-butyl hydroperoxide in acetonitrile at 50 °С. The product yields are up to 40% for cyclohexane. Of particular importance is the addition of 2-pyrazinecarboxylic acid (PCA) as a co-catalyst. Oxidation proceeds mainly with the participation of free hydroxyl radicals, as evidenced by taking into account the regio- and bond-selectivity in the oxidation of n-heptane and methylcyclohexane, as well as the dependence of the reaction rate on the initial concentration of cyclohexane.
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2
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Tang Y, Li Y, Feng Tao F. Activation and catalytic transformation of methane under mild conditions. Chem Soc Rev 2021; 51:376-423. [PMID: 34904592 DOI: 10.1039/d1cs00783a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In the last few decades, worldwide scientists have been motivated by the promising production of chemicals from the widely existing methane (CH4) under mild conditions for both chemical synthesis with low energy consumption and climate remediation. To achieve this goal, a whole library of catalytic chemistries of transforming CH4 to various products under mild conditions is required to be developed. Worldwide scientists have made significant efforts to reach this goal. These significant efforts have demonstrated the feasibility of oxidation of CH4 to value-added intermediate compounds including but not limited to CH3OH, HCHO, HCOOH, and CH3COOH under mild conditions. The fundamental understanding of these chemical and catalytic transformations of CH4 under mild conditions have been achieved to some extent, although currently neither a catalyst nor a catalytic process can be used for chemical production under mild conditions at a large scale. In the academic community, over ten different reactions have been developed for converting CH4 to different types of oxygenates under mild conditions in terms of a relatively low activation or catalysis temperature. However, there is still a lack of a molecular-level understanding of the activation and catalysis processes performed in extremely complex reaction environments under mild conditions. This article reviewed the fundamental understanding of these activation and catalysis achieved so far. Different oxidative activations of CH4 or catalytic transformations toward chemical production under mild conditions were reviewed in parallel, by which the trend of developing catalysts for a specific reaction was identified and insights into the design of these catalysts were gained. As a whole, this review focused on discussing profound insights gained through endeavors of scientists in this field. It aimed to present a relatively complete picture for the activation and catalytic transformations of CH4 to chemicals under mild conditions. Finally, suggestions of potential explorations for the production of chemicals from CH4 under mild conditions were made. The facing challenges to achieve high yield of ideal products were highlighted and possible solutions to tackle them were briefly proposed.
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Affiliation(s)
- Yu Tang
- Institute of Molecular Catalysis and In situ/operando Studies, College of Chemistry, Fuzhou University, Fujian, 350000, China.
| | - Yuting Li
- Department of Chemical and Petroleum Engineering, University of Kansas, KS 66045, USA.
| | - Franklin Feng Tao
- Department of Chemical and Petroleum Engineering, University of Kansas, KS 66045, USA.
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3
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Toofan J, Vessal B. Kinetics and mechanism of self‐decomposition/reduction of oxo bis (peroxo) pyridine chromium(VI) in nonaqueous solvents. INT J CHEM KINET 2021. [DOI: 10.1002/kin.21520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jahansooz Toofan
- Department of Chemistry California State University Sacramento CA USA
| | - Behnam Vessal
- Department of Chemistry California State University Sacramento CA USA
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4
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Abstract
The review describes articles that provide data on the synthesis and study of the properties of catalysts for the oxidation of alkanes, olefins, and alcohols. These catalysts are polynuclear complexes of iron, copper, osmium, nickel, manganese, cobalt, vanadium. Such complexes for example are: [Fe2(HPTB)(m-OH)(NO3)2](NO3)2·CH3OH·2H2O, where HPTB-¼N,N,N0,N0-tetrakis(2-benzimidazolylmethyl)-2-hydroxo-1,3-diaminopropane; complex [(PhSiO1,5)6]2[CuO]4[NaO0.5]4[dppmO2]2, where dppm-1,1-bis(diphenylphosphino)methane; (2,3-η-1,4-diphenylbut-2-en-1,4-dione)undecacarbonyl triangulotriosmium; phenylsilsesquioxane [(PhSiO1.5)10(CoO)5(NaOH)]; bi- and tri-nuclear oxidovanadium(V) complexes [{VO(OEt)(EtOH)}2(L2)] and [{VO(OMe)(H2O)}3(L3)]·2H2O (L2 = bis(2-hydroxybenzylidene)terephthalohydrazide and L3 = tris(2-hydroxybenzylidene)benzene-1,3,5-tricarbohydrazide); [Mn2L2O3][PF6]2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). For comparison, articles are introduced describing catalysts for the oxidation of alkanes and alcohols with peroxides, which are simple metal salts or mononuclear metal complexes. In many cases, polynuclear complexes exhibit higher activity compared to mononuclear complexes and exhibit increased regioselectivity, for example, in the oxidation of linear alkanes. The review contains a description of some of the mechanisms of catalytic reactions. Additionally presented are articles comparing the rates of oxidation of solvents and substrates under oxidizing conditions for various catalyst structures, which allows researchers to conclude about the nature of the oxidizing species. This review is focused on recent works, as well as review articles and own original studies of the authors.
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Sun S, Barnes AJ, Gong X, Lewis RJ, Dummer NF, Bere T, Shaw G, Richards N, Morgan DJ, Hutchings GJ. Lanthanum modified Fe-ZSM-5 zeolites for selective methane oxidation with H 2O 2. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01643a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Lanthanum modified Fe-ZSM-5 catalyst can both increase selective methane oxidation performance and decrease H2O2 consumption.
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Affiliation(s)
- Songmei Sun
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, P.R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, P.R. China
| | - Alexandra J. Barnes
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Xiaoxiao Gong
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
- Research Institute of Petroleum Processing, SINOPEC, Beijing 100086, P.R. China
| | - Richard J. Lewis
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Nicholas F. Dummer
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Takudzwa Bere
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Greg Shaw
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Nia Richards
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - David J. Morgan
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Graham J. Hutchings
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis FUNCAT, Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
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6
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Hong S, Mpourmpakis G. Mechanistic understanding of methane-to-methanol conversion on graphene-stabilized single-atom iron centers. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00826a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
DFT calculations and kinetic modeling elucidate solvent effects and complex mechanisms for the room-temperature methane-to-methanol conversion on an FeN4/graphene catalyst.
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Affiliation(s)
- Sungil Hong
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Giannis Mpourmpakis
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
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7
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Insights into the direct selective oxidation of methane to methanol over ZSM-5 zeolytes in aqueous hydrogen peroxide. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.03.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Metal Complexes Containing Redox-Active Ligands in Oxidation of Hydrocarbons and Alcohols: A Review. Catalysts 2019. [DOI: 10.3390/catal9121046] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Ligands are innocent when they allow oxidation states of the central atoms to be defined. A noninnocent (or redox) ligand is a ligand in a metal complex where the oxidation state is not clear. Dioxygen can be a noninnocent species, since it exists in two oxidation states, i.e., superoxide (O2−) and peroxide (O22−). This review is devoted to oxidations of C–H compounds (saturated and aromatic hydrocarbons) and alcohols with peroxides (hydrogen peroxide, tert-butyl hydroperoxide) catalyzed by complexes of transition and nontransition metals containing innocent and noninnocent ligands. In many cases, the oxidation is induced by hydroxyl radicals. The mechanisms of the formation of hydroxyl radicals from H2O2 under the action of transition (iron, copper, vanadium, rhenium, etc.) and nontransition (aluminum, gallium, bismuth, etc.) metal ions are discussed. It has been demonstrated that the participation of the second hydrogen peroxide molecule leads to the rapture of O–O bond, and, as a result, to the facilitation of hydroxyl radical generation. The oxidation of alkanes induced by hydroxyl radicals leads to the formation of relatively unstable alkyl hydroperoxides. The data on regioselectivity in alkane oxidation allowed us to identify an oxidizing species generated in the decomposition of hydrogen peroxide: (hydroxyl radical or another species). The values of the ratio-of-rate constants of the interaction between an oxidizing species and solvent acetonitrile or alkane gives either the kinetic support for the nature of the oxidizing species or establishes the mechanism of the induction of oxidation catalyzed by a concrete compound. In the case of a bulky catalyst molecule, the ratio of hydroxyl radical attack rates upon the acetonitrile molecule and alkane becomes higher. This can be expanded if we assume that the reactions of hydroxyl radicals occur in a cavity inside a voluminous catalyst molecule, where the ratio of the local concentrations of acetonitrile and alkane is higher than in the whole reaction volume. The works of the authors of this review in this field are described in more detail herein.
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New Oxidovanadium(IV) Complexes with 2,2′-bipyridine and 1,10-phenathroline Ligands: Synthesis, Structure and High Catalytic Activity in Oxidations of Alkanes and Alcohols with Peroxides. Catalysts 2019. [DOI: 10.3390/catal9030217] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Reactions of [VCl3(thf)3] or VBr3 with 2,2′-bipyridine (bpy) or 1,10-phenanthroline (phen) in a 1:1 molar ratio in air under solventothermal conditions has afforded polymeric oxidovanadium(IV) four complexes 1–4 of a general formula [VO(L)X2]n (L = bpy, phen and X = Cl, Br). Monomeric complex [VO(DMF)(phen)Br2] (4a) has been obtained by the treatment of compound 4 with DMF. The complexes were characterized by IR spectroscopy and elemental analysis. The crystal structures of 3 and 4a were determined by an X-ray diffraction (XRD) analysis. The {VOBr2(bpy)} fragments in 3 form infinite chains due to the V = O…V interactions. The vanadium atom has a distorted octahedral coordination environment. Complexes 1–4 have been tested as catalysts in the homogeneous oxidation of alkanes (to produce corresponding alkyl hydroperoxides which can be easily reduced to alcohols by PPh3) and alcohols (to corresponding ketones) with H2O2 or tert-butyl hydroperoxide in MeCN. Compound 1 exhibited the highest activity. The mechanism of alkane oxidation was established using experimental selectivity and kinetic data and theoretical DFT calculations. The mechanism is of the Fenton type involving the generation of HO• radicals.
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10
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Szécsényi Á, Li G, Gascon J, Pidko EA. Mechanistic Complexity of Methane Oxidation with H 2O 2 by Single-Site Fe/ZSM-5 Catalyst. ACS Catal 2018; 8:7961-7972. [PMID: 30221027 PMCID: PMC6135593 DOI: 10.1021/acscatal.8b01672] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/10/2018] [Indexed: 12/28/2022]
Abstract
Periodic density functional theory (DFT) calculations were carried out to investigate the mechanism of methane oxidation with H2O2 over the defined Fe sites in Fe/ZSM-5 zeolite. The initial Fe site is modeled as a [(H2O)2-Fe(III)-(μO)2-Fe(III)-(H2O)2]2+ extraframework cluster deposited in the zeolite pore and charge-compensated by two anionic lattice sites. The activation of this cluster with H2O2 gives rise to the formation of a variety of Fe(III)-oxo and Fe(IV)-oxo complexes potentially reactive toward methane dissociation. These sites are all able to promote the first C-H bond cleavage in methane by following three possible reaction mechanisms: namely, (a) heterolytic and (b) homolytic methane dissociation as well as (c) Fenton-type reaction involving free OH radicals as the catalytic species. The C-H activation step is followed by formation of MeOH and MeOOH and regeneration of the active site. The Fenton-type path is found to proceed with the lowest activation barrier. Although the barriers for the alternative heterolytic and homolytic pathways are found to be somewhat higher, they are still quite favorable and are expected to be feasible under reaction conditions, resulting ultimately in MeOH and MeOOH products. H2O2 oxidant competes with CH4 substrate for the same sites. Since the oxidation of H2O2 to O2 and two [H+] is energetically more favorable than the C-H oxofunctionalization, the overall efficiency of the latter target process remains low.
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Affiliation(s)
- Ágnes Szécsényi
- Catalysis
Engineering Group, Chemical Engineering Department, and Inorganic Systems
Engineering Group, Chemical Engineering Department, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- Catalysis
Center, Advanced Catalytic Materials, King
Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - Guanna Li
- Catalysis
Engineering Group, Chemical Engineering Department, and Inorganic Systems
Engineering Group, Chemical Engineering Department, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
| | - Jorge Gascon
- Catalysis
Center, Advanced Catalytic Materials, King
Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - Evgeny A. Pidko
- Catalysis
Engineering Group, Chemical Engineering Department, and Inorganic Systems
Engineering Group, Chemical Engineering Department, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, The Netherlands
- TheoMAT
Group, ITMO University, Lomonosova Street 9, St.
Petersburg 191002, Russia
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11
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Le TA, Huynh TP. The Combination of Hydrogen and Methanol Production through Artificial Photosynthesis-Are We Ready Yet? CHEMSUSCHEM 2018; 11:2654-2672. [PMID: 29944207 DOI: 10.1002/cssc.201800731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/22/2018] [Indexed: 06/08/2023]
Abstract
Because 100 % quantum efficiency for the photosynthetic production of H2 from H2 O under visible illumination has been achieved recently, the oxidation of H2 O to O2 remains the bottleneck to the overall water-splitting reaction. Oxidation of CH4 to CH3 OH might be combined with water reduction instead, so that H2 and CH3 OH chemical fuels can be simultaneously produced through a one-step process under solar illumination. This combination would be a promising approach towards a more sustainable future of chemistry, in which developing different strategies for artificial photosynthesis is of paramount importance. By using free and adsorbed HO. radicals on the semiconductor surface, CH4 can be activated to H3 C. radicals and converted into CH3 OH, respectively, with great selectivity up to 100 %. The present lack of efficient photosynthetic systems for the formation of H2 and CH3 OH from abundant H2 O and CH4 motivates future research for basic science and industrial applications.
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Affiliation(s)
- Trung-Anh Le
- Laboratory of Physical Chemistry, Faculty of Science and Engineering, Åbo Akademi University, Porthaninkatu 3-5, 20500, Turku, Finland
| | - Tan-Phat Huynh
- Laboratory of Physical Chemistry, Faculty of Science and Engineering, Åbo Akademi University, Porthaninkatu 3-5, 20500, Turku, Finland
- Center of Functional Materials, Åbo Akademi University, 20500, Turku, Finland
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12
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Gryca I, Czerwińska K, Machura B, Chrobok A, Shul’pina LS, Kuznetsov ML, Nesterov DS, Kozlov YN, Pombeiro AJL, Varyan IA, Shul’pin GB. High Catalytic Activity of Vanadium Complexes in Alkane Oxidations with Hydrogen Peroxide: An Effect of 8-Hydroxyquinoline Derivatives as Noninnocent Ligands. Inorg Chem 2018; 57:1824-1839. [DOI: 10.1021/acs.inorgchem.7b02684] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Izabela Gryca
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Katarzyna Czerwińska
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Barbara Machura
- Department of Crystallography, Institute of Chemistry, University of Silesia, 9th Szkolna Street, 40-006 Katowice, Poland
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Lidia S. Shul’pina
- Nesmeyanov Institute
of Organoelement Compounds, Russian Academy of Sciences, Ulitsa Vavilova, 28, 119991 Moscow, Russia
| | - Maxim L. Kuznetsov
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Dmytro S. Nesterov
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Yuriy N. Kozlov
- Semenov
Institute of Chemical Physics, Russian Academy of Sciences, Ulitsa Kosygina, dom 4, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
| | - Armando J. L. Pombeiro
- Centro de Química
Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ivetta A. Varyan
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
| | - Georgiy B. Shul’pin
- Semenov
Institute of Chemical Physics, Russian Academy of Sciences, Ulitsa Kosygina, dom 4, Moscow, Russia
- Plekhanov Russian University of Economics, Stremyannyi pereulok, dom 36, Moscow 117997, Russia
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13
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Fomenko IS, Gushchin AL, Shul’pina LS, Ikonnikov NS, Abramov PA, Romashev NF, Poryvaev AS, Sheveleva AM, Bogomyakov AS, Shmelev NY, Fedin MV, Shul’pin GB, Sokolov MN. New oxidovanadium(iv) complex with a BIAN ligand: synthesis, structure, redox properties and catalytic activity. NEW J CHEM 2018. [DOI: 10.1039/c8nj03358g] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of a new oxidovanadium(iv) complex1with pyrazine-2-carboxylic acid (PCA; a cocatalyst) affords a catalytic system for the efficient oxidation of saturated hydrocarbons.
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Affiliation(s)
- Iakov S. Fomenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Nikolay S. Ikonnikov
- Nesmeyanov Institute of Organoelement Compounds
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
| | - Nikolay F. Romashev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Artem S. Poryvaev
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
| | - Alena M. Sheveleva
- Novosibirsk State University
- 630090 Novosibirsk
- Russia
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
| | - Artem S. Bogomyakov
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
- Russia
| | - Nikita Y. Shmelev
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Matvey V. Fedin
- International Tomography Center, Siberian Branch of Russian Academy of Sciences
- 630090 Novosibirsk
- Russia
| | - Georgiy B. Shul’pin
- Department of Dynamics of Chemical and Biologicl Processes, Semenov Institute of Chemical Physics, Russian Academy of Sciences
- Moscow 119991
- Russia
- Chair of Chemistry and Physics, Plekhanov Russian University of Economics
- Moscow 117997
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
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14
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Ravi M, Ranocchiari M, van Bokhoven JA. The Direct Catalytic Oxidation of Methane to Methanol-A Critical Assessment. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201702550] [Citation(s) in RCA: 372] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Manoj Ravi
- Institute for Chemical and Bioengineering; ETH Zurich; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Marco Ranocchiari
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; 5232 Villigen Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering; ETH Zurich; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; 5232 Villigen Switzerland
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15
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Ravi M, Ranocchiari M, van Bokhoven JA. Die direkte katalytische Oxidation von Methan zu Methanol - eine kritische Beurteilung. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702550] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Manoj Ravi
- Institut für Chemie- und Bioingenieurwissenschaften; ETH Zürich; Vladimir-Prelog-Weg 1 8093 Zürich Schweiz
| | - Marco Ranocchiari
- Labor für Katalyse und nachhaltige Chemie; Paul Scherrer Institut; 5232 Villigen Schweiz
| | - Jeroen A. van Bokhoven
- Institut für Chemie- und Bioingenieurwissenschaften; ETH Zürich; Vladimir-Prelog-Weg 1 8093 Zürich Schweiz
- Labor für Katalyse und nachhaltige Chemie; Paul Scherrer Institut; 5232 Villigen Schweiz
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16
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Gunsalus NJ, Koppaka A, Park SH, Bischof SM, Hashiguchi BG, Periana RA. Homogeneous Functionalization of Methane. Chem Rev 2017; 117:8521-8573. [PMID: 28459540 DOI: 10.1021/acs.chemrev.6b00739] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One of the remaining "grand challenges" in chemistry is the development of a next generation, less expensive, cleaner process that can allow the vast reserves of methane from natural gas to augment or replace oil as the source of fuels and chemicals. Homogeneous (gas/liquid) systems that convert methane to functionalized products with emphasis on reports after 1995 are reviewed. Gas/solid, bioinorganic, biological, and reaction systems that do not specifically involve methane functionalization are excluded. The various reports are grouped under the main element involved in the direct reactions with methane. Central to the review is classification of the various reports into 12 categories based on both practical considerations and the mechanisms of the elementary reactions with methane. Practical considerations are based on whether or not the system reported can directly or indirectly utilize O2 as the only net coreactant based only on thermodynamic potentials. Mechanistic classifications are based on whether the elementary reactions with methane proceed by chain or nonchain reactions and with stoichiometric reagents or catalytic species. The nonchain reactions are further classified as CH activation (CHA) or CH oxidation (CHO). The bases for these various classifications are defined. In particular, CHA reactions are defined as elementary reactions with methane that result in a discrete methyl intermediate where the formal oxidation state (FOS) on the carbon remains unchanged at -IV relative to that in methane. In contrast, CHO reactions are defined as elementary reactions with methane where the carbon atom of the product is oxidized and has a FOS less negative than -IV. This review reveals that the bulk of the work in the field is relatively evenly distributed across most of the various areas classified. However, a few areas are only marginally examined, or not examined at all. This review also shows that, while significant scientific progress has been made, greater advances, particularly in developing systems that can utilize O2, will be required to develop a practical process that can replace the current energy and capital intensive natural gas conversion process. We believe that this classification scheme will provide the reader with a rapid way to identify systems of interest while providing a deeper appreciation and understanding, both practical and fundamental, of the extensive literature on methane functionalization. The hope is that this could accelerate progress toward meeting this "grand challenge."
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Affiliation(s)
- Niles Jensen Gunsalus
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Anjaneyulu Koppaka
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Sae Hume Park
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Steven M Bischof
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Brian G Hashiguchi
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Roy A Periana
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
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Al-Shihri S, Richard CJ, Chadwick D. Selective Oxidation of Methane to Methanol over ZSM-5 Catalysts in Aqueous Hydrogen Peroxide: Role of Formaldehyde. ChemCatChem 2017. [DOI: 10.1002/cctc.201601563] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Saeed Al-Shihri
- Department of Chemical Engineering; Imperial College London; South Kensington London SW7 2AZ UK
| | - Christian J. Richard
- Department of Chemical Engineering; Imperial College London; South Kensington London SW7 2AZ UK
| | - David Chadwick
- Department of Chemical Engineering; Imperial College London; South Kensington London SW7 2AZ UK
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18
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Olivos-Suarez AI, Szécsényi À, Hensen EJM, Ruiz-Martinez J, Pidko EA, Gascon J. Strategies for the Direct Catalytic Valorization of Methane Using Heterogeneous Catalysis: Challenges and Opportunities. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00428] [Citation(s) in RCA: 336] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Alma I. Olivos-Suarez
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
| | - Àgnes Szécsényi
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Emiel J. M. Hensen
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Javier Ruiz-Martinez
- AkzoNobel - Supply Chain, Research & Development, Process Technology SRG, 7418 AJ Deventer, The Netherlands
- Inorganic
Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Evgeny A. Pidko
- Inorganic
Materials Chemistry group, Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jorge Gascon
- Catalysis
Engineering, Chemical Engineering Department Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
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Debnath M, Dutta A, Biswas S, Das KK, Lee HM, Vícha J, Marek R, Marek J, Ali M. Catalytic oxidation of aromatic hydrocarbons by mono-oxido-alkoxidovanadium(V) complexes of ONNO donor ethylenediamine-bis(phenolate) ligands. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Systematic Study of the Oxidation of Methane Using Supported Gold Palladium Nanoparticles Under Mild Aqueous Conditions. Top Catal 2013. [DOI: 10.1007/s11244-013-0121-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Kirillov AM, Shul’pin GB. Pyrazinecarboxylic acid and analogs: Highly efficient co-catalysts in the metal-complex-catalyzed oxidation of organic compounds. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.09.012] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Sutradhar M, Shvydkiy NV, Guedes da Silva MFC, Kirillova MV, Kozlov YN, Pombeiro AJL, Shul'pin GB. A new binuclear oxovanadium(v) complex as a catalyst in combination with pyrazinecarboxylic acid (PCA) for efficient alkane oxygenation by H2O2. Dalton Trans 2013; 42:11791-803. [DOI: 10.1039/c3dt50584g] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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23
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Shul'pin GB. C–H functionalization: thoroughly tuning ligands at a metal ion, a chemist can greatly enhance catalyst's activity and selectivity. Dalton Trans 2013; 42:12794-818. [DOI: 10.1039/c3dt51004b] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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Ab Rahim MH, Forde MM, Jenkins RL, Hammond C, He Q, Dimitratos N, Lopez-Sanchez JA, Carley AF, Taylor SH, Willock DJ, Murphy DM, Kiely CJ, Hutchings GJ. Oxidation of Methane to Methanol with Hydrogen Peroxide Using Supported Gold-Palladium Alloy Nanoparticles. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207717] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Ab Rahim MH, Forde MM, Jenkins RL, Hammond C, He Q, Dimitratos N, Lopez-Sanchez JA, Carley AF, Taylor SH, Willock DJ, Murphy DM, Kiely CJ, Hutchings GJ. Oxidation of Methane to Methanol with Hydrogen Peroxide Using Supported Gold-Palladium Alloy Nanoparticles. Angew Chem Int Ed Engl 2012; 52:1280-4. [DOI: 10.1002/anie.201207717] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 11/23/2012] [Indexed: 11/10/2022]
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Kirillov AM, Kirillova MV, Pombeiro AJ. Multicopper complexes and coordination polymers for mild oxidative functionalization of alkanes. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.07.022] [Citation(s) in RCA: 176] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Nesterov DS, Chygorin EN, Kokozay VN, Bon VV, Boča R, Kozlov YN, Shul’pina LS, Jezierska J, Ozarowski A, Pombeiro AJL, Shul’pin GB. Heterometallic CoIII4FeIII2 Schiff Base Complex: Structure, Electron Paramagnetic Resonance, and Alkane Oxidation Catalytic Activity. Inorg Chem 2012; 51:9110-22. [PMID: 22853695 DOI: 10.1021/ic301460q] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dmytro S. Nesterov
- Centro de Química Estrutural,
Complexo I, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001, Lisbon,
Portugal
| | - Eduard N. Chygorin
- Department of
Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska
St., 01601 Kyiv, Ukraine
| | - Volodymyr N. Kokozay
- Department of
Inorganic Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska
St., 01601 Kyiv, Ukraine
| | - Volodymyr V. Bon
- Department of Chemistry of Complex
Compounds, V. I. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, 32/34 Palladin
Ave., Kyiv 03680, Ukraine
| | - Roman Boča
- Institute of Inorganic Chemistry,
FCHPT, Slovak University of Technology,
Radlinskeho 9, 812 37 Bratislava, Slovakia
- Department of Chemistry, FPV, University of SS Cyril and Methodius, Trnava, Slovakia
| | - Yuriy N. Kozlov
- Semenov Institute of Chemical
Physics, Russian Academy of Sciences, Ulitsa
Kosygina, dom 4, Moscow 119991, Russia
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement
Compounds, Russian Academy of Sciences,
Ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | - Julia Jezierska
- Faculty of Chemistry, University of Wroclaw, 14 Joliot-Curie Str., 50-383,
Wroclaw, Poland
| | - Andrew Ozarowski
- National
High Magnetic Field
Laboratory, Florida State University, 1800
E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural,
Complexo I, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001, Lisbon,
Portugal
| | - Georgiy B. Shul’pin
- Semenov Institute of Chemical
Physics, Russian Academy of Sciences, Ulitsa
Kosygina, dom 4, Moscow 119991, Russia
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28
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Forde MM, Grazia BC, Armstrong R, Jenkins RL, Rahim MHA, Carley AF, Dimitratos N, Lopez-Sanchez JA, Taylor SH, McKeown NB, Hutchings GJ. Methane oxidation using silica-supported N-bridged di-iron phthalocyanine catalyst. J Catal 2012. [DOI: 10.1016/j.jcat.2012.03.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Kirillova MV, Kuznetsov ML, Kozlov YN, Shul’pina LS, Kitaygorodskiy A, Pombeiro AJL, Shul’pin GB. Participation of Oligovanadates in Alkane Oxidation with H2O2 Catalyzed by Vanadate Anion in Acidified Acetonitrile: Kinetic and DFT Studies. ACS Catal 2011. [DOI: 10.1021/cs200237m] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Marina V. Kirillova
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Maxim L. Kuznetsov
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Yuriy N. Kozlov
- Semenov Institute of Chemical Physics, Russian Academy of Science, Ulitsa Kosigina, dom 4, 119991 Moscow, Russia
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | | | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade Técnica de Lisboa, Avenida Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Georgiy B. Shul’pin
- Semenov Institute of Chemical Physics, Russian Academy of Science, Ulitsa Kosigina, dom 4, 119991 Moscow, Russia
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31
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Shul'pin GB, Kozlov YN, Shul'pina LS, Petrovskiy PV. Oxidation of alkanes and alcohols with hydrogen peroxide catalyzed by complex Os3(CO)10(µ-H)2. Appl Organomet Chem 2010. [DOI: 10.1002/aoc.1641] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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32
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Shul’pin GB, Kozlov YN, Shul’pina LS, Kudinov AR, Mandelli D. Extremely Efficient Alkane Oxidation by a New Catalytic Reagent H2O2/Os3(CO)12/Pyridine. Inorg Chem 2009; 48:10480-2. [DOI: 10.1021/ic901576r] [Citation(s) in RCA: 127] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Georgiy B. Shul’pin
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, ulitsa Kosygina, dom 4, Moscow 119991, Russia
| | - Yuriy N. Kozlov
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, ulitsa Kosygina, dom 4, Moscow 119991, Russia
| | - Lidia S. Shul’pina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | - Alexander R. Kudinov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ulitsa Vavilova, dom 28, Moscow 119991, Russia
| | - Dalmo Mandelli
- Faculdade de Química, Pontifícia Universidade Católica de Campinas, Campus I, Rod. D. Pedro I, km 136, Pq. das Universidades, Campinas SP 13086-900, Brazil
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33
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Wei X, Ye L, Yuan Y. Low temperature catalytic conversion of methane to formic acid by simple vanadium compound with use of H2O2. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/s1003-9953(08)60118-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Hydrogen Peroxide Oxygenation of Saturated and Unsaturated Hydrocarbons Catalyzed by Montmorillonite or Aluminum Oxide. Catal Letters 2009. [DOI: 10.1007/s10562-009-0103-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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35
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Kuznetsov ML, Pombeiro AJL. Radical Formation in the [MeReO3]-Catalyzed Aqueous Peroxidative Oxidation of Alkanes: A Theoretical Mechanistic Study. Inorg Chem 2008; 48:307-18. [DOI: 10.1021/ic801753t] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maxim L. Kuznetsov
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, TU Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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36
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Khaliullin RZ, Bell AT, Head-Gordon M. A density functional theory study of the mechanism of free radical generation in the system vanadate/PCA/H2O2. J Phys Chem B 2007; 109:17984-92. [PMID: 16853308 DOI: 10.1021/jp058162a] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Experimental studies by Shul'pin and co-workers have shown that vanadate anions in combination with pyrazine-2-carboxylic acid (PCA identical with pcaH) produce an exceptionally active complex that promotes the oxidation of alkanes and other organic molecules. Reaction of this complex with H2O2 releases HOO* free radicals and generates V(IV) species, which are capable of generating HO* radicals by reaction with additional H2O2. The oxidation of alkanes is initiated by reaction with the HO* radicals. The mechanism of hydrocarbon oxidation with vanadate/PCA/H2O2 catalyst has been studied using density functional theory. The proposed model reproduces the major experimental observations. It is found that a vanadium complex with one pca (PCA identical with pcaH) and one H2O2 ligand is the precursor to the species responsible for HOO* generation. It is also found that species containing two pca ligands and an H2O2 molecule do not exist in the solution, in contradiction to previous interpretations of experimental observations. Calculated dependences of the oxidation rate on initial concentrations of PCA and H2O2 have characteristic maxima, the shapes of which are determined by the equilibrium concentration of the active species. Conversion of the precursors requires hydrogen transfer from H2O2 to a vanadyl group. Our calculations show that direct transfer has a higher barrier than pca-assisted indirect transfer. Indirect transfer occurs by migration of hydrogen from coordinated H2O2 to the oxygen of a pca ligand connected to the vanadium atom. The proposed mechanism demonstrates the important role of the cocatalyst in the reaction and explains why H2O2 complexes without pca are less active. Our work shows that the generation of HOO* radicals cannot occur via cleavage of a V-OOH bond in the complex formed directly from the precursors, as proposed before. The activation barrier for this process is too high. Instead, HOO* radicals are formed via a sequence of additional steps involving lower activation barriers. The new mechanism for free radical generation underestimates the observed rate of hexane oxidation by less than an order of magnitude; however, the calculated activation energy (67-81 kJ/mol) agrees well with that determined experimentally (63-80 kJ/mol).
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Affiliation(s)
- Rustam Z Khaliullin
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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37
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Romakh VB, Kozlov YN, Süss-Fink G, Shul’pin GB. The kinetics and mechanism of oxidation of isopropanol with the hydrogen peroxide-vanadate ion-pyrazine-2-carboxylic acid system. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2007. [DOI: 10.1134/s0036024407080080] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Kozlov YN, Romakh VB, Kitaygorodskiy A, Buglyó P, Süss-Fink G, Shul'pin GB. Oxidation of 2-propanol and cyclohexane by the reagent "hydrogen peroxide-vanadate anion-pyrazine-2-carboxylic acid": kinetics and mechanism. J Phys Chem A 2007; 111:7736-52. [PMID: 17655204 DOI: 10.1021/jp0700884] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The vanadate anion in the presence of pyrazine-2-carboxylic acid (PCA [identical with] pcaH) efficiently catalyzes the oxidation of 2-propanol by hydrogen peroxide to give acetone. UV-vis spectroscopic monitoring of the reaction as well as the kinetics lead to the conclusion that the crucial step of the process is the monomolecular decomposition of a diperoxovanadium(V) complex containing the pca ligand to afford the peroxyl radical, HOO(.-) and a V(IV) derivative. The rate-limiting step in the overall process may not be this (rapid) decomposition itself but (prior to this step) the slow hydrogen transfer from a coordinated H2O2 molecule to the oxygen atom of a pca ligand at the vanadium center: "(pca)(O=)V...O2H2" --> "(pca)(HO-)V-OOH". The V(IV) derivative reacts with a new hydrogen peroxide molecule to generate the hydroxyl radical ("V(IV)" + H2O2 --> "V(V)" + HO(-) + HO(.-)), active in the activation of isopropanol: HO(.-) + Me2CH(OH) --> H2O + Me2C(.-)(OH). The reaction with an alkane, RH, in acetonitrile proceeds analogously, and in this case the hydroxyl radical abstracts a hydrogen atom from the alkane: HO(.-) + RH --> H2O + R(.-). These conclusions are in a good agreement with the results obtained by Bell and co-workers (Khaliullin, R. Z.; Bell, A. T.; Head-Gordon, M. J. Phys. Chem. B 2005, 109, 17984-17992) who recently carried out a density functional theory study of the mechanism of radical generation in the reagent under discussion in acetonitrile.
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Affiliation(s)
- Yuriy N Kozlov
- Semenov Institute of Chemical Physics, Russian Academy of Sciences, Ulitsa Kosygina, dom 4, Moscow 119991, Russia
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Kozlov YN, Nizova GV, Shul’pin GB. Oxidations by the reagent “O2–H2O2–vanadium derivative–pyrazine-2-carboxylic acid”. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.molcata.2004.10.043] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Effect of acetonitrile on the catalytic decomposition of hydrogen peroxide by vanadium ions and conjugated oxidation of alkanes. Russ Chem Bull 2004. [DOI: 10.1007/s11172-005-0123-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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41
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Gonzalez Cuervo L, Kozlov YN, Süss-Fink G, Shul’pin GB. Oxidation of saturated hydrocarbons with peroxyacetic acid catalyzed by vanadium complexes. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcata.2004.04.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Mono and oligonuclear vanadium complexes as catalysts for alkane oxidation: synthesis, molecular structure, and catalytic potential. Inorganica Chim Acta 2004. [DOI: 10.1016/j.ica.2003.05.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Williams GR, Kolaczkowski ST, Plucinski P. Catalyst instabilities during the liquid phase partial oxidation of methane. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00161-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Shul’pin GB. Metal-catalyzed hydrocarbon oxygenations in solutions: the dramatic role of additives: a review. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1169(02)00196-6] [Citation(s) in RCA: 416] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Seki Y, Min JS, Misono M, Mizuno N. Reaction Mechanism of Oxidation of Methane with Hydrogen Peroxide Catalyzed by 11-Molybdo-1-vanadophosphoric Acid Catalyst Precursor. J Phys Chem B 2000. [DOI: 10.1021/jp000406y] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasuhiro Seki
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Joon Seok Min
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Makoto Misono
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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48
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49
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Aqueous Phase Oxidation of Methane with Hydrogen Peroxide Catalyzed by Di-iron-Substituted Silicotungstate. J Catal 1999. [DOI: 10.1006/jcat.1999.2455] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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