1
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Yang Q, Gao X, Song F, Wang X, Zhang T, Xiong P, Bai Y, Liu X, Liu X, Zhang J, Fu G, Tan Y, Han Y, Zhang Q. Unsaturated Penta-Coordinated Mo 5c5+ Sites Enabled Low-Temperature Oxidation of C-H Bonds in Ethers. JACS AU 2023; 3:3141-3154. [PMID: 38034970 PMCID: PMC10685418 DOI: 10.1021/jacsau.3c00479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 12/02/2023]
Abstract
Selective oxidation of C-H bonds under mild conditions is one of the most important and challenging issues in utilization of energy-related molecules. Molybdenum oxide nanostructures containing Mo5+ species are effective for these reactions, but the accurate identification of the structure of active Mo5+ species and the catalytic mechanism remain unclear. Herein, unsaturated penta-coordinated Mo5c5+ with a high fraction in MoOx fabricated by the hydrothermal method were identified as the active sites for low-temperature oxidation of dimethyl ether (DME) by the deep correlation of characterizations, density functional theory calculations, and activity results, giving a methyl formate selectivity of 96.3% and DME conversion of 12.5% at unreported 110 °C. Low-temperature electron spin resonance (ESR) and quasi in situ X-ray photoelectron spectra (XPS) with the designed experiments confirm that the Mo5c5+ species can be formed in situ. Molybdenum located at the pentachronic site is preferable to significantly promote the oxidation of the C-H bond in CH3O* at lower temperatures.
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Affiliation(s)
- Qi Yang
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiujuan Gao
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Faen Song
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Xiaoxing Wang
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Tao Zhang
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Pan Xiong
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunxing Bai
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingchen Liu
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Xiaoyan Liu
- Dalian
Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
| | - Junfeng Zhang
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Gang Fu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China
| | - Yisheng Tan
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Yizhuo Han
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
| | - Qingde Zhang
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China
- Dalian
National Laboratory for Clean Energy, Dalian 116023, China
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2
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Shamma E, Said S, Riad M, Mikhail S. Novel Vanadia/meso-Co 3O 4 catalysts for the conversion of benzene-toluene-xylene to environmental friendly components via catalytic oxidation. ENVIRONMENTAL TECHNOLOGY 2023; 44:1531-1548. [PMID: 34781842 DOI: 10.1080/09593330.2021.2007288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 10/24/2021] [Indexed: 06/13/2023]
Abstract
Three - dimensional meso-porous Co3O4 was prepared by nanocasting pathway based on the use of mesoporous silica (KIT-6) as hard template with different Cobalt concentrations (0.5-2.5 mol ratio based on mesoporous silica KIT-6). The prepared samples was used as supports for preparing V2O5/Co3O4 (1, 6 wt% of V2O5) catalysts. The prepared samples were characterized by different techniques. The catalytic activity of the prepared samples were evaluated in the complete oxidation reaction of toluene, benzene, and/or p-xylene; (as model reactants of volatile organic compounds) in terms of CO2. The catalytic reaction was carried out in a fixed-bed micro-reactor operated under atmospheric pressure and within the reaction temperature range of 200-400 °C. The data confirmed that the three dimensional-mesoporous Co3O4 (1.0 mole ratio) replicated sample possessed improved different parameters compared to those of the Co3O4 sample with other mole ratios. The data reflected the yield of Co2 is decreased upon the increase in reaction temperature to 400°C. 1 wt.% V2O5/m-Co3O4 catalyst shows a reverse direction, the CO2 yield slowly increased in the range 150-250 °C, then jumped at 300 °C until maximum yield (100%) is observed at 400 °C. 1 wt.% V2O5/m-Co3O4 catalyst was found to be the active and selective promised catalyst for the complete oxidation of either individual aromatic volatile organic compounds (benzene, toluene, and/or xylene) and/or their mixtures to 100% CO2.
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Affiliation(s)
- E Shamma
- Egyptian Petroleum Research Institute, Cairo, Egypt
| | - S Said
- Egyptian Petroleum Research Institute, Cairo, Egypt
| | - M Riad
- Egyptian Petroleum Research Institute, Cairo, Egypt
| | - S Mikhail
- Egyptian Petroleum Research Institute, Cairo, Egypt
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3
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Zabilska A, Clark AH, Ferri D, Nachtegaal M, Kröcher O, Safonova OV. Beware of beam damage under reaction conditions: X-ray induced photochemical reduction of supported VO x catalysts during in situ XAS experiments. Phys Chem Chem Phys 2022; 24:21916-21926. [PMID: 36069029 PMCID: PMC9641748 DOI: 10.1039/d2cp02721f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/20/2022] [Indexed: 11/04/2023]
Abstract
In situ X-ray absorption spectroscopy (XAS) is a powerful technique for the investigation of heterogeneous catalysts and electrocatalysts. The obtained XAS spectra are usually interpreted from the point of view of the investigated chemical processes, thereby sometimes omitting the fact that intense X-ray irradiation may induce additional transformations in metal speciation and, thus, in the corresponding XAS spectra. In this work, we report on X-ray induced photochemical reduction of vanadium in supported vanadia (VOx) catalysts under reaction conditions, detected at a synchrotron beamline. While this process was not observed in an inert atmosphere and in the presence of water vapor, it occurred at room temperature in the presence of a reducing agent (ethanol or hydrogen) alone or mixed with oxygen. Temperature programmed experiments have shown that X-ray induced reduction of VOx species appeared very clear at 30-100 °C but was not detected at higher temperatures, where the thermocatalytic ethanol oxidative hydrogenation (ODH) takes place. Similar to other studies on X-ray induced effects, we suggest approaches, which can help to mitigate vanadium photoreduction, including defocusing of the X-ray beam and attenuation of the X-ray beam intensity by filters. To recognize beam damage under in situ/operando conditions, we suggest performing X-ray beam switching (on and off) tests at different beam intensities under in situ conditions.
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Affiliation(s)
- Anna Zabilska
- Paul Scherrer Institute, 5232 Villigen, Switzerland.
- École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Adam H Clark
- Paul Scherrer Institute, 5232 Villigen, Switzerland.
| | - Davide Ferri
- Paul Scherrer Institute, 5232 Villigen, Switzerland.
| | | | - Oliver Kröcher
- Paul Scherrer Institute, 5232 Villigen, Switzerland.
- École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
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4
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Broomhead WT, Tian W, Herrera JE, Chin YHC. Kinetic Coupling of Redox and Acid Chemistry in Methanol Partial Oxidation on Vanadium Oxide Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William Thomas Broomhead
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
| | - Wei Tian
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - José Efrain Herrera
- Department of Chemical and Biochemical Engineering, Western University, London, Ontario N6A 5B9, Canada
| | - Ya-Huei Cathy Chin
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
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5
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The Promoting Effect of Ti on the Catalytic Performance of V-Ti-HMS Catalysts in the Selective Oxidation of Methanol. Catalysts 2022. [DOI: 10.3390/catal12080869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effects of Ti modification on the structural properties and catalytic performance of vanadia on hexagonal mesoporous silica (V-HMS) catalysts are studied for selective methanol-to-dimethoxymethane oxidation. Characterizations including N2 adsorption–desorption (SBET), X-ray diffraction (XRD), UV-Vis diffuse reflectance spectroscopy (DRS UV-Vis), Micro-Raman spectroscopy, FTIR spectroscopy, and H2 temperature-programmed reduction (H2-TPR) were carried out to investigate the property and structure of the catalysts. The results show that Ti can be successfully incorporated into the HMS framework in a wide range of Si/Ti ratios from 50 to 10. Ti modification can effectively improve the distribution of vanadium species and thus enhance the overall redox properties and catalytic performance of the catalysts. The catalytic activity of the V-Ti-HMS catalysts with the Si/Ti ratio of 30 is approximately two times higher than that of V-HMS catalysts with comparable selectivity. The enhanced activity exhibited by the V-Ti-HMS catalyst is attributed to the improved dispersion and reducibility of vanadium oxides.
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6
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Conversion of Alcohols on Stoichiometric and Reduced Rutile TiO2 (110): Point Defects Meet Bifunctionality in Oxide (Photo-)Chemistry. Catal Letters 2022. [DOI: 10.1007/s10562-022-04077-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractOxidic (photo-)catalysts have the potential to play an important role to efficiently implement sustainable feedstocks and green energy sources into future energy technologies. They may be used not only for solar energy harvesting, but also for hydrogen production or being essential for the fabrication of fine chemicals. Therefore, it is crucial to develop a detailed understanding of how the atomistic environment of the catalyst can be designed in order to promote distinct reaction pathways to influence the final product distribution of chemical reactions. In this perspective article, we survey the surface (photo-)chemistry of methanol on rutile TiO2 surfaces and hybrid catalysts based thereon. Especially the role of the surface bifunctionality by Lewis acidic and basic sites combined with the strong impact of point defects such as reduced titanium sites (mainly Ti3+ interstitials) shall be illuminated. It is shown how the selective activation of either O–H, C–H or C–O bonds in the methanol molecule can be used to tune not only the overall conversion, but to switch between oxidative and reductive routes in favor of either deoxygenation, partial oxidation or C–C coupling reactions. Especially the latter ones are of particular interest to introduce methanol from green sources such as biomass as a sustainable feedstock into already existing petrochemical technologies.
Graphical Abstract
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7
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Badmaev SD, Belyaev VD, Sobyanin VA. Thermodynamic Aspects of Dimethoxymethane Conversion into Hydrogen-Rich Gas. KINETICS AND CATALYSIS 2022. [DOI: 10.1134/s0023158422030016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Gao X, Zhang J, Song F, Zhang Q, Han Y, Tan Y. Selective oxidation conversion of methanol/dimethyl ether. Chem Commun (Camb) 2022; 58:4687-4699. [PMID: 35302128 DOI: 10.1039/d1cc07276e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
As important platform compounds, methanol and dimethyl ether (DME) are vital bridges between the coal chemical, petrochemical and fine chemical industries. At present, the synthesis of methanol/DME has been industrialized, and the production capacity is much larger than the market demand. Therefore, the conversion of methanol/DME into more valuable chemicals is an important and significant topic. The synthesis of high value-added oxygenated chemicals and diesel oil additives from methanol/DME by an oxidation method has attracted substantial attention due to it being green and environmentally friendly and having good atom economy. In this feature article, we have summarized the recent advances in the synthesis of formaldehyde, methyl formate, dimethoxymethane, and polyoxymethylene dimethyl ethers, from the selective oxidation of methanol/DME, and further discussed the adsorption and activation of reactant molecules, selective cleavage of C-O, C-H or O-H bonds in methanol/DME molecules and the C-O chain growth in the target products. In the end, major challenges and future prospects are proposed from the viewpoint of catalyst design and application. It is expected that this feature article will provide theoretical guidance for the activation and cleavage of C-O, C-H, or O-H bonds in other small molecules of alcohol/ether as well as low-carbon alkanes, so as to synthesize high value-added chemicals.
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Affiliation(s)
- Xiujuan Gao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China. .,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfeng Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China.
| | - Faen Song
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China.
| | - Qingde Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China. .,Dalian National Laboratory for Clean Energy, CAS, Dalian 116023, China
| | - Yizhuo Han
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China.
| | - Yisheng Tan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Science, Taiyuan 030001, China.
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9
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Ke D, Wang M, Ruan J, Chen X, Zhou S. Efficient, Continuous Oxidation of Durene to Pyromellitic Dianhydride Mediated by A V-Ti-P Ternary Catalyst: The Remarkable Doping Effect. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Zabilska A, Clark AH, Moskowitz BM, Wachs IE, Kakiuchi Y, Copéret C, Nachtegaal M, Kröcher O, Safonova OV. Redox Dynamics of Active VO x Sites Promoted by TiO x during Oxidative Dehydrogenation of Ethanol Detected by Operando Quick XAS. JACS AU 2022; 2:762-776. [PMID: 35388376 PMCID: PMC8977985 DOI: 10.1021/jacsau.2c00027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/25/2022] [Accepted: 03/02/2022] [Indexed: 06/14/2023]
Abstract
Titania-supported vanadia (VO x /TiO2) catalysts exhibit outstanding catalytic in a number of selective oxidation and reduction processes. In spite of numerous investigations, the nature of redox transformations of vanadium and titanium involved in various catalytic processes remains difficult to detect and correlate to the rate of products formation. In this work, we studied the redox dynamics of active sites in a bilayered 5% V2O5/15% TiO2/SiO2 catalyst (consisting of submonolayer VO x species anchored onto a TiO x monolayer, which in turn is supported on SiO2) during the oxidative dehydrogenation of ethanol. The VO x species in 5% V2O5/15% TiO2/SiO2 show high selectivity to acetaldehyde and an ca. 40 times higher acetaldehyde formation rate in comparison to VO x species supported on SiO2 with a similar density. Operando time-resolved V and Ti K-edge X-ray absorption near-edge spectroscopy, coupled with a transient experimental strategy, quantitatively showed that the formation of acetaldehyde over 5% V2O5/15% TiO2/SiO2 is kinetically coupled to the formation of a V4+ intermediate, while the formation of V3+ is delayed and 10-70 times slower. The low-coordinated nature of various redox states of VO x species (V5+, V4+, and V3+) in the 5% V2O5/15% TiO2/SiO2 catalyst is confirmed using the extensive database of V K-edge XANES spectra of standards and specially synthesized molecular crystals. Much weaker redox activity of the Ti4+/Ti3+ couple was also detected; however, it was found to not be kinetically coupled to the rate-determining step of ethanol oxidation. Thus, the promoter effect of TiO x is rather complex. TiO x species might be involved in a fast electron transport between VO x species and might affect the electronic structure of VO x , thereby promoting their reducibility. This study demonstrates the high potential of element-specific operando X-ray absorption spectroscopy for uncovering complex catalytic mechanisms involving the redox kinetics of various metal oxides.
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Affiliation(s)
- Anna Zabilska
- Paul
Scherrer Institute, 5232 Villigen, Switzerland
- École
Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | | | - Benjamin M. Moskowitz
- Operando Molecular Spectroscopy &
Catalysis Laboratory,
Department of Chemical & Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Israel E. Wachs
- Operando Molecular Spectroscopy &
Catalysis Laboratory,
Department of Chemical & Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Yuya Kakiuchi
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | - Christophe Copéret
- Department
of Chemistry and Applied Biosciences, ETH
Zürich, CH-8093 Zürich, Switzerland
| | | | - Oliver Kröcher
- Paul
Scherrer Institute, 5232 Villigen, Switzerland
- École
Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
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11
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Hernández Guiance S, Torres S, Coria D, Irurzun I. A combined infrared spectroscopy and density functional theory study of the CH4 and O2 reaction on Cr2O3/γ-Al2O3. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Guo J, Liu J, Cui Y, Liu C, Wang Y, Wang M, Huang D, Chen G, Wang W, Xia D, Fang X. Timing matters: pre-assembly versus post-assembly functionalization of a polyoxovanadate–organic cuboid. Chem Sci 2022; 13:5718-5725. [PMID: 35694331 PMCID: PMC9116283 DOI: 10.1039/d2sc00533f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/06/2022] [Indexed: 11/21/2022] Open
Abstract
The pre-assembly and post-assembly approaches in the functionalization of a polyoxovanadate–organic cuboid, [{V6S}8(QPTC)8{V3}2]10−, are discussed. We have shown that the two pathways have led to distinctly different systems, with either an expanded or contracted interior void space, when phenylphosphonate is introduced at different stages of the self-assembly. One leaves the cuboid framework largely intact, whereas the other results in a compact, twisted cuboid. Kinetic factors will have to be considered in the equilibrium of these complex processes. Furthermore, the exceptional stability of these polyoxometalate–organic systems facilitates mass spectrometric characterization, which confirms the composition of the complexes and also indicates that the methoxide groups on the vanadium cluster nodes are labile. The results will help deepen the mechanistic understanding of the formation mechanisms of polyoxovanadate-based metal–organic cages and other functionalized polyoxovanadate clusters in general. Introducing functional groups at different stages in the assembly of a metal–organic cage has led to two distinct, endo-functionalized products, a result attributed to kinetic trapping in a process generally operating under thermodynamic control.![]()
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Affiliation(s)
- Ji Guo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Junrui Liu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Xiamen Fujian 361021 China
| | - Yingcui Cui
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Chuanhong Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Yangming Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Mou Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Danmeng Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Guanying Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Wei Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Xiamen Fujian 361021 China
| | - Debin Xia
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Xikui Fang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
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13
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Preparation of MIL-88B(Fe ,Co1−) catalysts and their application in one-step liquid-phase methanol oxidation to methyl formate using H2O2. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63749-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Yang JH, Lee HJ, Lee HS, Jeon SC, Han YS. Precise control of heat-treatment conditions to improve the catalytic performance of V 2O 5/TiO 2 for H 2S removal. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125974. [PMID: 34492883 DOI: 10.1016/j.jhazmat.2021.125974] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 06/13/2023]
Abstract
The purpose of this study is to investigate the influences of atmospheric gas and temperature while preparing V2O5/TiO2 catalysts to find a suitable heat-treatment method to improve catalytic performance during the process of H2S removal. The catalysts prepared by wet-impregnation were heat-treated at different temperatures (400 or 600 ℃) under various atmospheres (Air, N2, or H2). The catalytic tests demonstrated that the catalyst heat-treated at 400 ℃ under N2 atmosphere (N-400) possessed excellent catalytic activities regarding H2S conversion (96.4%) and sulfur yield (89.1%). The characterization results revealed that the mild reducing condition employed for N-400 led to the formation of partially reduced V2O5 crystals and a strong V-Ti interaction owing to the anatase TiO2 phase, resulting in the high oxygen vacancies on the catalyst surface. However, severe reducing conditions (H2 or N2 with 600 ℃) or the higher temperature (600 ℃) induced highly reduced V2O5-x or rutile TiO2 related to a weak V-Ti interaction, respectively, which facilitated lower oxygen vacancies. This study is the first to demonstrate the significance of a precisely controlled heat-treatment to enhance catalytic performance for H2S removal.
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Affiliation(s)
- Jae Hwan Yang
- Department of Environmental Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea; Department of Environmental & IT Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Hyun Ji Lee
- Department of Environmental Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea; Department of Environmental & IT Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Hyun Soo Lee
- Department of Environmental Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea; Department of Environmental & IT Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
| | - Sang-Chae Jeon
- School of Materials Science and Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongsangnam-do 51140, South Korea; Department of Materials Convergence and System Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongsangnam-do 51140, South Korea.
| | - Young-Soo Han
- Department of Environmental Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea; Department of Environmental & IT Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, South Korea
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15
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Abstract
Methyl formate is a key component for both defossilized industry and mobility. The current industrial production via carbonylation of methanol has various disadvantages such as high requirements on reactant purity and low methanol conversion rates. In addition, there is a great interest in replacing the conventional homogeneous catalyst with a heterogeneous one, among other things to improve the downstream processing. This is why new approaches for methyl formate are sought. This review summarizes promising approaches for methyl formate production using methanol as a reactant.
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16
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Wang B, Zhong S, Tang S, Yue H, Ma K, Liu C, Liang B. Photocatalytic Production of Methyl Formate by Methanol Self-Coupling: From Oxidative Dehydrogenation to Direct Dehydrogenation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bin Wang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Shan Zhong
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Siyang Tang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Hairong Yue
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Chuanda Road, Shuangliu Country, Chengdu 610207, China
| | - Kui Ma
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Changjun Liu
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Bin Liang
- School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Chuanda Road, Shuangliu Country, Chengdu 610207, China
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17
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Shi Q, Wei X, Raza A, Li G. Recent Advances in Aerobic Photo‐Oxidation of Methanol to Valuable Chemicals. ChemCatChem 2021. [DOI: 10.1002/cctc.202100104] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Quanquan Shi
- College of Science and College of Material Science and Art Design Inner Mongolia Agricultural University Hohhot 010018 P. R. China
| | - Xuejiao Wei
- School of Chemical Engineering and Materials Changzhou Institute of Technology Changzhou 213032 P. R. China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Ali Raza
- Solar Cell Applications Research Lab Department of Physics Government College University Lahore 54000 Punjab Pakistan
- Department of Physics University of Sialkot (USKT) 1-Km Main Daska Road, Sialkot 51311 Punjab Pakistan
| | - Gao Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
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18
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Wolski L, Lebedev OI, Harmer CP, Kovnir K, Abdelli H, Grzyb T, Daturi M, El-Roz M. Unraveling the Origin of Photocatalytic Deactivation in CeO 2/Nb 2O 5 Heterostructure Systems during Methanol Oxidation: Insight into the Role of Cerium Species. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:12650-12662. [PMID: 34276865 PMCID: PMC8279704 DOI: 10.1021/acs.jpcc.1c02812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/19/2021] [Indexed: 06/13/2023]
Abstract
The study provides deep insight into the origin of photocatalytic deactivation of Nb2O5 after modification with ceria. Of particular interest was to fully understand the role of ceria species in diminishing the photocatalytic performance of CeO2/Nb2O5 heterostructures. For this purpose, ceria was loaded on niobia surfaces by wet impregnation. The as-prepared materials were characterized by powder X-ray diffraction, nitrogen physisorption, UV-visible spectroscopy, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, and photoluminescence measurements. Photocatalytic activity of parent metal oxides (i.e., Nb2O5 and CeO2) and as-prepared CeO2/Nb2O5 heterostructures with different ceria loadings were tested in methanol photooxidation, a model gas-phase reaction. Deep insight into the photocatalytic process provided by operando-IR techniques combined with results of photoluminescence studies revealed that deactivation of CeO2/Nb2O5 heterostructures resulted from increased recombination of photo-excited electrons and holes. The main factor contributing to more efficient recombination of the charge carriers in the heterostructures was the ultrafine size of the ceria species. The presence of such highly dispersed ceria species on the niobia surface provided a strong interface between these two semiconductors, enabling efficient charge transfer from Nb2O5 to CeO2. However, the ceria species supported on niobia exhibited a high defect site concentration, which acted as highly active recombination centers for the photo-induced charge carriers.
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Affiliation(s)
- Lukasz Wolski
- Faculty
of Chemistry, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego
8, Poznań 61-614, Poland
- Normandie
Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, Caen 14050, France
| | - Oleg I. Lebedev
- Normandie
Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire CRISMAT, Caen 14050, France
| | - Colin P. Harmer
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S.
Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
| | - Kirill Kovnir
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- U.S.
Department of Energy, Ames Laboratory, Ames, Iowa 50011, United States
| | - Hanen Abdelli
- Normandie
Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, Caen 14050, France
| | - Tomasz Grzyb
- Department
of Rare Earths, Faculty of Chemistry, Adam
Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Marco Daturi
- Normandie
Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, Caen 14050, France
| | - Mohamad El-Roz
- Normandie
Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, Caen 14050, France
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19
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Guo J, Chang Q, Liu Z, Wang Y, Liu C, Wang M, Huang D, Chen G, Zhao H, Wang W, Fang X. How to not build a cage: endohedral functionalization of polyoxometalate-based metal-organic polyhedra. Chem Sci 2021; 12:7361-7368. [PMID: 34163825 PMCID: PMC8171318 DOI: 10.1039/d1sc01243f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/02/2021] [Indexed: 01/14/2023] Open
Abstract
Introducing functionalities into the interior of metal-organic cage complexes can confer properties and utilities (e.g. catalysis, separation, drug delivery, and guest recognition) that are distinct from those of unfunctionalized cages. Endohedral functionalization of such cage molecules, for decades, has largely relied on modifying their organic linkers to covalently append targeted functional groups to the interior surface. We herein introduce an effective coordination method to bring in functionalities at the metal sites instead, for a set of polyhedral cages where the nodes are in situ formed polyoxovanadate clusters, [VIV 6O6(OCH3)9(μ6-SO4)(COO)3]2-. Replacing the central sulfates of these hexavanadate clusters with more strongly coordinating phosphonate groups allows the installation of functionalities within the cage cavities. Organophosphonates with phenyl, biphenyl, and terphenyl tails were examined for internalization. Depending on the size/shape of the cavities, small phosphonates can fit into the molecular containers whereas larger ones inhibit or transform the framework architecture, whereby the first non-cage complex was isolated from a reaction that otherwise would lead to entropically favored regular polyhedra cages. The results highlight the complex and dynamic nature of the self-assembly process involving polyoxometalates and the scope of molecular variety accessible by the introduction of endo functional groups.
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Affiliation(s)
- Ji Guo
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Qing Chang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Zhiwei Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Yangming Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Chuanhong Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Mou Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Danmeng Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Guanying Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Hongmei Zhao
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications Beijing 100876 China
| | - Wei Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Xiamen Fujian 361021 China
- Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences Xiamen Fujian 361021 China
| | - Xikui Fang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
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20
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Yu Y, Li F, Han X, Long S, Shi S, Xu L, Liu G. High-Performance Metal Oxide-Modified V/TiO 2 Catalysts for Selective Oxidation of 2-Methylnaphthalene to 2-Naphthaldehyde: An Experimental and Theoretical Study. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c04697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yi Yu
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Fanfan Li
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xinghao Han
- College of Food Science, Tibet Agriculture and Animal Husbandry University, Linzhi, Tibet 860000, P. R. China
| | - Shanghai Long
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Shishuai Shi
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Li Xu
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Guoji Liu
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
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21
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Kurenkova AY, Kozlova EA, Kaichev VV. The Influence of Reaction Conditions on the Rate of Hydrogen Evolution in Aqueous Solutions of Glycerol over Pt/TiO2 Photocatalysts. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s002315842006004x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Zhang J, Wang H, Lu B, Zhao J, Cai Q. A Composite Fe–V/g-C3N4 for Liquid-Phase Selective Oxidation of Methanol with O2 Oxidant. Catal Letters 2021. [DOI: 10.1007/s10562-020-03354-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Maksimov GM, Gerasimov EY, Kenzhin RM, Saraev AA, Kaichev VV, Vedyagin AA. CO oxidation over titania-supported gold catalysts obtained using polyoxometalate. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-020-01881-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Wisniewska J, Sobczak I, Ziolek M. The effect of the calcium dopant on the activity and selectivity of gold catalysts supported on SBA-15 and Nb-containing SBA-15 in methanol oxidation. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02135k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold catalysts based on SBA-15, NbSBA-15 (Nb introduced in one pot synthesis) and Nb2O5/SBA-15 (prepared by impregnation of SBA-15) were doped with calcium species introduced before Au loading and were tested in gas-phase methanol oxidation.
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Affiliation(s)
- Joanna Wisniewska
- Faculty of Chemistry
- Adam Mickiewicz University, Poznań
- 61-614 Poznań
- Poland
| | - Izabela Sobczak
- Faculty of Chemistry
- Adam Mickiewicz University, Poznań
- 61-614 Poznań
- Poland
| | - Maria Ziolek
- Faculty of Chemistry
- Adam Mickiewicz University, Poznań
- 61-614 Poznań
- Poland
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25
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Xie Z, Chen B, Zheng L, Peng F, Liu H, Han B. Monomeric vanadium oxide: a very efficient species for promoting aerobic oxidative dehydrogenation of N-heterocycles. NEW J CHEM 2021. [DOI: 10.1039/d0nj04708b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The isolated monomeric VO4 species, controlled by natural ligand tartaric acid, in the VOx/NbOy@C catalysts exhibited excellent performances and good recyclability in the dehydrogenation of N-heterocycles.
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Affiliation(s)
- Zhenbing Xie
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Bingfeng Chen
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Lirong Zheng
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- P. R. China
| | - Fangfang Peng
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Colloidal and Interface and Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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26
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Fedorov A, Saraev A, Kremneva A, Selivanova A, Vorokhta M, Šmíd B, Bulavchenko O, Yakovlev V, Kaichev V. Kinetic and mechanistic study of CO oxidation over nanocomposite Cu−Fe−Al oxide catalysts. ChemCatChem 2020. [DOI: 10.1002/cctc.202000852] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Aleksandr Fedorov
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
| | - Andrey Saraev
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
| | - Anna Kremneva
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
| | | | - Mykhailo Vorokhta
- Department of Surface and Plasma Science Faculty of Mathematics and Physics Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Bretislav Šmíd
- Department of Surface and Plasma Science Faculty of Mathematics and Physics Charles University V Holešovičkách 2 180 00 Prague Czech Republic
| | - Olga Bulavchenko
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
| | - Vadim Yakovlev
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
| | - Vasily Kaichev
- Boreskov Institute of Catalysis (BIC) Lavrentiev Ave., 5 630090 Novosibirsk Russia
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27
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Noor T, Pervaiz S, Iqbal N, Nasir H, Zaman N, Sharif M, Pervaiz E. Nanocomposites of NiO/CuO Based MOF with rGO: An Efficient and Robust Electrocatalyst for Methanol Oxidation Reaction in DMFC. NANOMATERIALS 2020; 10:nano10081601. [PMID: 32824116 PMCID: PMC7466713 DOI: 10.3390/nano10081601] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 11/26/2022]
Abstract
In this work a novel bimetallic nickel oxide/copper oxide metal–organic framework (NiO/CuO MOF) has been developed by using two linkers: Benzene Dicarboxylic acid (BDC) and Pyrazine. The composites of NiO/CuO MOF with different amounts of reduced graphene oxide (rGO) were synthesized through a hydrothermal method and subsequently characterized by multiple significant techniques like XRD, SEM, EDX, FTIR and Raman IR for an investigation of their structural and morphological properties. The prepared series of material was later employed for electrochemical oxidation of methanol, tested by cyclic voltammetry (CV) in basic medium on a modified glassy carbon electrode (GCE). The electrochemical response depicts that increasing concentration of rGO enhances the electrocatalytic activity of the catalyst for methanol oxidation reaction (MOR). The catalyzed oxidation reaction of methanol by NiO/CuO MOF and rGO-NiO/CuO MOF composites give a superlative current density of 437. 28 mA/cm2 at 0.9 V potential at 50 mV/s scan rate. This activity makes it a promising catalytic material for electrolysis of methanol in direct methanol fuel cell (DMFC).
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Affiliation(s)
- Tayyaba Noor
- School of Chemical & Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan;
- Correspondence: ; Tel.: +92-51-90855121
| | - Sadaf Pervaiz
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (S.P.); (H.N.)
| | - Naseem Iqbal
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (N.I.); (N.Z.)
| | - Habib Nasir
- School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (S.P.); (H.N.)
| | - Neelam Zaman
- U.S-Pakistan Center for Advanced Studies in Energy (USPCAS-E), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan; (N.I.); (N.Z.)
| | - Muhammad Sharif
- Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
| | - Erum Pervaiz
- School of Chemical & Materials Engineering (SCME), National University of Sciences and Technology (NUST), H-12 Campus, Islamabad 44000, Pakistan;
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28
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Kurenkova AY, Kremneva AM, Saraev AA, Murzin V, Kozlova EA, Kaichev VV. Influence of Thermal Activation of Titania on Photoreactivity of Pt/TiO2 in Hydrogen Production. Catal Letters 2020. [DOI: 10.1007/s10562-020-03321-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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29
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Schnadt J, Knudsen J, Johansson N. Present and new frontiers in materials research by ambient pressure x-ray photoelectron spectroscopy. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 32:413003. [PMID: 32438360 DOI: 10.1088/1361-648x/ab9565] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
In this topical review we catagorise all ambient pressure x-ray photoelectron spectroscopy publications that have appeared between the 1970s and the end of 2018 according to their scientific field. We find that catalysis, surface science and materials science are predominant, while, for example, electrocatalysis and thin film growth are emerging. All catalysis publications that we could identify are cited, and selected case stories with increasing complexity in terms of surface structure or chemical reaction are discussed. For thin film growth we discuss recent examples from chemical vapour deposition and atomic layer deposition. Finally, we also discuss current frontiers of ambient pressure x-ray photoelectron spectroscopy research, indicating some directions of future development of the field.
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Affiliation(s)
- Joachim Schnadt
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Lund, Sweden
- MAX IV Laboratory, Lund University, Lund, Sweden
| | - Jan Knudsen
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Lund, Sweden
- MAX IV Laboratory, Lund University, Lund, Sweden
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30
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Zhang Y, Liu G, Shi L, Wu P, Zeng G, Zhang C, Yang N, Li S, Sun Y. Quantitative Conversion of Methanol to Methyl Formate on Graphene-Confined Nano-Oxides. iScience 2020; 23:101157. [PMID: 32450511 PMCID: PMC7251949 DOI: 10.1016/j.isci.2020.101157] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/15/2020] [Accepted: 05/07/2020] [Indexed: 11/15/2022] Open
Abstract
We demonstrate the nearly quantitative conversion of methanol to methyl formate (MF) with a reliable durability on the reduced-graphene-oxide-confined VTiOx nanoparticles (rGO@VTiO). The rGO@VTiO exhibits superior low-temperature reactivity than the rGO-free VTiO, and the MF yield of 98.8% is even comparable with the noble metal catalysts. Both experiments and simulations demonstrate that the ultrathin rGO shell significantly impacts the shell/core interfacial electronic structure and the surface chemistry of the resultant catalysts, leading to remarkable reactivity in methanol to MF. rGO enhances the dispersion and loading rates of active monomeric/oligomeric VOx. In particular, the electron migration between the rGO shell and oxides core reinforces the acidity of rGO@VTiO in the absence of sulfate acidic sites. Moreover, both in situ NAP-XPS and DRIFTS investigations suggest that the lattice oxygen was involved in the oxidation of methanol and the MF was formed via the hemiacetal mechanism.
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Affiliation(s)
- Yelei Zhang
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; School of Chemical Sciences, University of Chinese Academy of Science, Beijing 100049, China
| | - Guojuan Liu
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Lei Shi
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Ping Wu
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; School of Chemical Sciences, University of Chinese Academy of Science, Beijing 100049, China.
| | - Chunlei Zhang
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Nating Yang
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shenggang Li
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.
| | - Yuhan Sun
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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31
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Shan J, Giannakakis G, Liu J, Cao S, Ouyang M, Li M, Lee S, Flytzani-Stephanopoulos M. PdCu Single Atom Alloys for the Selective Oxidation of Methanol to Methyl Formate at Low Temperatures. Top Catal 2020. [DOI: 10.1007/s11244-020-01288-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Steam reforming of dimethoxymethane to hydrogen-rich gas over bifunctional CuO-ZnO/ƞ-Al2O3 catalyst-coated FeCrAl wire mesh. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.08.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Vieira LH, Possato LG, Chaves TF, Lee JJ, Sulmonetti TP, Jones CW, Martins L. Insights into Redox Dynamics of Vanadium Species Impregnated in Layered Siliceous Zeolitic Structures during Methanol Oxidation Reactions. ChemCatChem 2020. [DOI: 10.1002/cctc.201901567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Luiz H. Vieira
- Instituto de QuímicaUniversidade Estadual Paulista – UNESP R. Prof. Francisco Degni, 55 Quitandinha SP 14800-900 Brazil
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology 311 Ferst Drive NW Atlanta GA 30332 USA
| | - Luiz G. Possato
- Instituto de QuímicaUniversidade Estadual Paulista – UNESP R. Prof. Francisco Degni, 55 Quitandinha SP 14800-900 Brazil
| | - Thiago F. Chaves
- Instituto de QuímicaUniversidade Estadual Paulista – UNESP R. Prof. Francisco Degni, 55 Quitandinha SP 14800-900 Brazil
| | - Jason J. Lee
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology 311 Ferst Drive NW Atlanta GA 30332 USA
| | - Taylor P. Sulmonetti
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology 311 Ferst Drive NW Atlanta GA 30332 USA
| | - Christopher W. Jones
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology 311 Ferst Drive NW Atlanta GA 30332 USA
| | - Leandro Martins
- Instituto de QuímicaUniversidade Estadual Paulista – UNESP R. Prof. Francisco Degni, 55 Quitandinha SP 14800-900 Brazil
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34
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35
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Development of Nickel-BTC-MOF-Derived Nanocomposites with rGO Towards Electrocatalytic Oxidation of Methanol and Its Product Analysis. Catalysts 2019. [DOI: 10.3390/catal9100856] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In this study, electrochemical oxidation of methanol to formic acid using the economical and highly active catalytic Nickel Benzene tricarboxylic acid metal organic framework (Ni-BTC-MOF) and reduced graphene oxide (rGO) nanocomposites modified glassy carbon electrode GCE in alkaline media, which was examined via cyclic voltammetry technique. Nickel based MOF and rGO nanocomposites were prepared by solvothermal approach, followed by morphological and structural characterization of prepared samples through X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and energy dispersive X-ray (EDX) analysis. The electrochemical testing of synthesized materials represents the effect of the sequential increase in rGO concentration on electrocatalytic activity. The Ni-BTC/4 wt % rGO composite with a pronounced current density of 200.22 mA/cm2 at 0.69 V versus Hg/HgO electrode at 50 mV/s was found to be a potential candidate for methanol oxidation in Direct Methanol Fuel Cell (DMFC) applications. Product analysis was carried out through Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR) spectroscopy, which confirmed the formation of formic acid during the oxidation process, with approximately 62% yield.
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WU JB, SHI RP, QIN ZF, LIU H, LI ZK, ZHU HQ, ZHAO YX, WANG JG. Selective oxidation of methanol to methyl formate over bimetallic Au-Pd nanoparticles supported on SiO2. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/s1872-5813(19)30034-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Nguyen L, Tao FF, Tang Y, Dou J, Bao XJ. Understanding Catalyst Surfaces during Catalysis through Near Ambient Pressure X-ray Photoelectron Spectroscopy. Chem Rev 2019; 119:6822-6905. [DOI: 10.1021/acs.chemrev.8b00114] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Luan Nguyen
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Franklin Feng Tao
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Yu Tang
- Institute of In Situ/Operando Studies of Catalysis and State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry, Fuzhou University, Fuzhou 350116, China
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Jian Dou
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Xiao-Jun Bao
- School of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
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Dwivedi R, Kumar A, Khare S, Prasad R. Process Development and DFT‐Assisted Mechanism of the Vapour Phase Ammoxidation of 2,6‐Dichlorotoluene to 2,6‐Dichlorobenzonitrile over the V
2
O
5
/γ‐Al
2
O
3
Catalyst. ChemistrySelect 2019. [DOI: 10.1002/slct.201900028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ritambhara Dwivedi
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
| | - Ashok Kumar
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
| | - Savita Khare
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
| | - Rajendra Prasad
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
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Sun R, Delidovich I, Palkovits R. Dimethoxymethane as a Cleaner Synthetic Fuel: Synthetic Methods, Catalysts, and Reaction Mechanism. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04441] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ruiyan Sun
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Irina Delidovich
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
| | - Regina Palkovits
- Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Worringerweg 2, 52074 Aachen, Germany
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Shi D, Liu J, Sun R, Ji S, Rogers SM, Connolly BM, Dimitratos N, Wheatley AE. Preparation of bifunctional Au-Pd/TiO2 catalysts and research on methanol liquid phase one-step oxidation to methyl formate. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.01.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Corral-Pérez JJ, Bansode A, Praveen CS, Kokalj A, Reymond H, Comas-Vives A, VandeVondele J, Copéret C, von Rohr PR, Urakawa A. Decisive Role of Perimeter Sites in Silica-Supported Ag Nanoparticles in Selective Hydrogenation of CO2 to Methyl Formate in the Presence of Methanol. J Am Chem Soc 2018; 140:13884-13891. [DOI: 10.1021/jacs.8b08505] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan José Corral-Pérez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Atul Bansode
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - C. S. Praveen
- Department of Materials, ETH Zürich, CH-8093 Zürich, Switzerland
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Anton Kokalj
- Department of Physical and Organic Chemistry, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
| | - Helena Reymond
- Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
| | | | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093 Zürich, Switzerland
| | | | - Atsushi Urakawa
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
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Lin KS, Lin YG, Cheng HW, Haung YH. Preparation and characterization of V-Loaded titania nanotubes for adsorption/photocatalysis of basic dye and environmental hormone contaminated wastewaters. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Andrushkevich TV, Chesalov YA. Mechanism of heterogeneous catalytic oxidation of organic compounds to carboxylic acids. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The results of studies on the mechanism of heterogeneous catalytic oxidation of organic compounds of different chemical structure to carboxylic acids are analyzed and generalized. The concept developed by Academician G.K.Boreskov, according to which the direction of the reaction is governed by the structure and bond energy of surface intermediates, was confirmed taking the title processes as examples. Quantitative criteria of the bond energies of surface compounds of oxidizable reactants, reaction products and oxygen that determine the selective course of the reaction are presented.
The bibliography includes 195 references.
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Badmaev SD, Smorygina AS, Paukshtis EA, Belyaev VD, Sobyanin VA, Parmon VN. Gas-Phase Carbonylation of Dimethoxymethane to Methyl Methoxyacetate on Solid Acids: The Effect of Acidity on the Catalytic Activity. KINETICS AND CATALYSIS 2018. [DOI: 10.1134/s0023158418010020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Roy K, Artiglia L, van Bokhoven JA. Ambient Pressure Photoelectron Spectroscopy: Opportunities in Catalysis from Solids to Liquids and Introducing Time Resolution. ChemCatChem 2018. [DOI: 10.1002/cctc.201701522] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kanak Roy
- Institute for Chemical and Bioengineering; ETH Zürich; Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen Switzerland
| | - Luca Artiglia
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering; ETH Zürich; Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen Switzerland
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46
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Niethammer B, Wodarz S, Betz M, Haltenort P, Oestreich D, Hackbarth K, Arnold U, Otto T, Sauer J. Alternative Liquid Fuels from Renewable Resources. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201700117] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Benjamin Niethammer
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Simon Wodarz
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Matthias Betz
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Philipp Haltenort
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Dorian Oestreich
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Kathrin Hackbarth
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Ulrich Arnold
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Thomas Otto
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Jörg Sauer
- Karlsruhe Institute of Technology (KIT); Institute of Catalysis Research and Technology (IKFT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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47
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B. HB, T. VRK, Y. W. S, P. S. SP, N. L. One-step selective synthesis of 2-chlorobenzonitrile from 2-chlorotoluene via ammoxidation. NEW J CHEM 2018. [DOI: 10.1039/c7nj03728g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Isolated and polymeric vanadia formulate V2O5/Al2O3 catalysts selective for the synthesis of 2-chlorobenzonitrile from 2-chlorotoluene in a single step through ammoxidation.
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Affiliation(s)
- Hari Babu B.
- Catalysis Laboratory
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Venkateswara Rao K. T.
- Catalysis Laboratory
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Suh Y. W.
- Department of Chemical Engineering
- Hanyang University
- Seoul 133-691
- Republic of Korea
- Research Institute of Industrial Science
| | - Sai Prasad P. S.
- Catalysis Laboratory
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
| | - Lingaiah N.
- Catalysis Laboratory
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 007
- India
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48
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Zhao H, Fang K, Dong F, Lin M, Sun Y, Tang Z. Textual properties of Cu–Mn mixed oxides and application for methyl formate synthesis from syngas. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.05.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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49
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Bhatelia T, Lee WJ, Samanta C, Patel J, Bordoloi A. Processes for the production of oxymethylene ethers: promising synthetic diesel additives. ASIA-PAC J CHEM ENG 2017. [DOI: 10.1002/apj.2119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tejas Bhatelia
- CSIRO; 71 Normanby Road Clayton North Victoria 3169 Australia
- Department of Chemical and Biomolecular Engineering; The University of Melbourne; Parkville Victoria 3010 Australia
| | - Woo Jin Lee
- CSIRO; 71 Normanby Road Clayton North Victoria 3169 Australia
| | - Chanchal Samanta
- Bharat Petroleum Corporation ltd., Corporate R&D Centre; Plot No. 2A, Udyog Kendra Greater Noida Uttar Pradesh -201306 India
| | - Jim Patel
- CSIRO; 71 Normanby Road Clayton North Victoria 3169 Australia
| | - Ankur Bordoloi
- Nano catalysis, RTD; Indian Institute of Petroleum; Dehradun UTTARAKHAND -248005 India
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50
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Li N, Wang S, Sun Y, Li S. First principles studies on the selectivity of dimethoxymethane and methyl formate in methanol oxidation over V 2O 5/TiO 2-based catalysts. Phys Chem Chem Phys 2017; 19:19393-19406. [PMID: 28715018 DOI: 10.1039/c7cp02326j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First principles calculations using both molecular cluster and periodic slab models were performed to reveal the mechanism for the formation of dimethoxymethane (DMM) from methanol over V2O5/TiO2-based catalysts. Two different pathways were found, and the formation of DMM was predicted to be initiated by methanol chemisorption followed by a dehydration reaction with hemiacetal catalyzed by acidic sites. For unpromoted V2O5/TiO2 catalysts, we predicted the energy barrier for the rate determining step (RDS) to follow the order formaldehyde (FA) > methyl formate (MF) > DMM, consistent with the experimental observation for the preferential formation of DMM at a relatively low temperature and that of MF at a relatively high temperature. For sulfate-promoted catalysts, the energy barriers were calculated to follow the order FA > DMM > MF, so the sulfate promoter was predicted to mainly enhance the selectivity of MF, consistent with our previous experiment in which very high yield of MF was obtained with the sulfate-promoted catalyst. Calculated rate constants for the RDS were further used for semi-quantitative predictions of the product selectivities, which were found to be in quite good agreement with some of the recent experimental data in the literature, showing the validity of our approach. We also investigated the effects of the titania support and the polymerization of the vanadia species on the reactivity of the V2O5/TiO2 catalyst. Finally, we benchmarked several popular exchange-correlation functionals for calculating the reaction energies for the formation of FA, MF, and DMM from methanol oxidation, and the M06 hybrid functional was found to be superior to other semi-local and hybrid functionals studied.
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Affiliation(s)
- Na Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institue, Chinese Academy of Sciences, 100 Haike Road, Shanghai 201210, China. and Department of Chemistry, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Shibin Wang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institue, Chinese Academy of Sciences, 100 Haike Road, Shanghai 201210, China. and School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Yuhan Sun
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institue, Chinese Academy of Sciences, 100 Haike Road, Shanghai 201210, China. and School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
| | - Shenggang Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institue, Chinese Academy of Sciences, 100 Haike Road, Shanghai 201210, China. and School of Physical Science and Technology, ShanghaiTech University, 100 Haike Road, Shanghai 201210, China
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