1
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Wang K, Davies-Jones J, Graf A, Carravetta M, Davies PR, Pera-Titus M. Amphiphilic Janus Particles for Aerobic Alcohol Oxidation in Oil Foams. ACS Catal 2024; 14:11545-11553. [PMID: 39114089 PMCID: PMC11301628 DOI: 10.1021/acscatal.4c00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 08/10/2024]
Abstract
Amphiphilic Janus silica particles, tunable with oleophobic-oleophilic properties and low fluorine content (8 wt % F), exhibited prominent foamability for a variety of aromatic alcohols at low particle concentrations (<1 wt %) compared to randomly functionalized silica particles. When selectively loaded with Pd nanoparticles on the oleophilic hemisphere, the particles displayed more than a 2-fold increase in catalytic activity for the aerobic oxidation of benzyl alcohol compared to nonfoam bulk catalysis under ambient O2 pressure. The particles were conveniently recycled with high foamability and catalytic activity maintained for at least five consecutive runs.
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Affiliation(s)
- Kang Wang
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Josh Davies-Jones
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Arthur Graf
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Marina Carravetta
- School
of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K.
| | - Philip R. Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
| | - Marc Pera-Titus
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K.
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2
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Selective Oxidation of Alcohols and Alkenes with Molecular Oxygen Catalyzed by Highly Dispersed Cobalt (II) Decorated 12-Tungstosilicic Acid-Modified Zirconia. Catalysts 2022. [DOI: 10.3390/catal12121622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Traditional procedures for oxidation processes suffer from a lack of selectivity, the use of organic solvents, the toxicity of the reagents, and waste production. As a cleaner alternative, highly dispersed Co over 12-tungstosilicicacid modified zirconia was synthesized and used for the selective oxidation of benzyl alcohol and styrene with molecular oxygen to carbonyl compounds under environmentally benign solvent-free conditions. The supremacy of the present catalyst lies in achieving excellent selectivity (>90%) for products with a very high turnover number. The catalytic activity of the recycled catalysts was also explored under optimized conditions to confirm sustainability. Further, the viability of the catalyst was studied via oxidation of various alcohols and alkenes under optimized conditions as well as superiority by comparison with the reported catalysts.
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3
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Turgut AM, Ozer D, Icten O, Zumreoglu-Karan B. Solvent–Free Oxidation of Benzyl Alcohol Over Mechanochemically Prepared Fe3BO6–CeO2 Catalyst. Catal Letters 2022. [DOI: 10.1007/s10562-022-04098-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Bai P, Zhou T, Wang X, Liu X, Wang Y, Wang Y, Muhumuza E, Zhang Y, Wu P. Remarkably improved performance of Au-Pd/γ-Al2O3 catalyst in benzyl alcohol oxidation by mercapto-propyl-trimethoxysilane modification. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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5
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Santos A, Lewis RJ, Morgan DJ, Davies TE, Hampton E, Gaskin P, Hutchings GJ. The oxidative degradation of phenol via in situ H 2O 2 synthesis using Pd supported Fe-modified ZSM-5 catalysts. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00283c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bifunctional Pd/Fe-ZSM-5 catalysts promote pollutant degradation through in situ H2O2 synthesis.
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Affiliation(s)
- Alba Santos
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Richard J. Lewis
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - David J. Morgan
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
- HarwellXPS, Research Complex at Harwell (RCaH), Didcot, OX11 OFA, UK
| | - Thomas E. Davies
- Max Planck centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Euan Hampton
- Dŵr Cymru Welsh Water, Pentwyn Road, Nelson, Treharris, CF46 6LY, UK
| | - Paul Gaskin
- Dŵr Cymru Welsh Water, Pentwyn Road, Nelson, Treharris, CF46 6LY, UK
| | - Graham J. Hutchings
- Max Planck centre for Fundamental 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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Park K, Jiang J, Yamada T, Sajiki H. Ruthenium-on-Carbon-Catalyzed Facile Solvent-Free Oxidation of Alcohols: Efficient Progress under Solid-Solid (Liquid)-Gas Conditions. Chem Pharm Bull (Tokyo) 2021; 69:1200-1205. [PMID: 34853287 DOI: 10.1248/cpb.c21-00749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A protocol for the ruthenium-on-carbon (Ru/C)-catalyzed solvent-free oxidation of alcohols, which proceeds efficiently under solid-solid (liquid)-gas conditions, was developed. Various primary and secondary alcohols were transformed to corresponding aldehydes and ketones in moderate to excellent isolated yields by simply stirring in the presence of 10% Ru/C under air or oxygen conditions. The solvent-free oxidation reactions proceeded efficiently regardless of the solid or liquid state of the substrates and reagents and could be applied to gram-scale synthesis without loss of the reaction efficiency. Furthermore, the catalytic activity of Ru/C was maintained after five reuse cycles.
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Affiliation(s)
- Kwihwan Park
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
| | - Jing Jiang
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
| | - Tsuyoshi Yamada
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
| | - Hironao Sajiki
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University
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7
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Lukato S, Wendt OF, Wallenberg R, Kasozi GN, Naziriwo B, Persson A, Folkers LC, Tebandeke E. Selective oxidation of benzyl alcohols with molecular oxygen as the oxidant using Ag-Cu catalysts supported on polyoxometalates. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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8
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Single-Walled Carbon Nanotube Supported PtNi Nanoparticles (PtNi@SWCNT) Catalyzed Oxidation of Benzyl Alcohols to the Benzaldehyde Derivatives in Oxygen Atmosphere. Sci Rep 2020; 10:9656. [PMID: 32541661 PMCID: PMC7295747 DOI: 10.1038/s41598-020-66492-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 05/22/2020] [Indexed: 11/30/2022] Open
Abstract
This study reports a developed process which is a general and facile method for the oxidation of benzyl alcohol (BnOH) compounds to the benzaldehyde (BA) derivatives, under mild conditions. The oxidation of BnOH species catalyzed by PtNi@SWCNT in toluene (3 ml) at 80 °C under a continuous stream of O2. Single wall carbon nanotube supported PtNi (PtNi@SWCNT) nanoparticles were synthesized using a single-step modified reduction process. The characterization of PtNi@SWCNT nanocatalyst was performed by transmission electron microscope (TEM), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), and elemental analysis by ICP-OES. A variety of BnOH compounds were oxidized by the PtNi@SWCNT catalyst and all the expected oxidation products were obtained in high efficiency in 2 hours of reaction time. TLC was used to monitoring the reaction progress, and the products were identified by 1H/13C-NMR analysis.
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9
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Wissing M, Niehues M, Ravoo BJ, Studer A. Synthesis and Immobilization of Metal Nanoparticles Using Photoactive Polymer‐Decorated Zeolite L Crystals and Their Application in Catalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Maren Wissing
- Organisch Chemisches Institut and Center for Soft NanoscienceWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Maximilian Niehues
- Organisch Chemisches Institut and Center for Soft NanoscienceWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Bart Jan Ravoo
- Organisch Chemisches Institut and Center for Soft NanoscienceWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Armido Studer
- Organisch Chemisches Institut and Center for Soft NanoscienceWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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10
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Li H, Hayden SC, France-Lanord A, Converse E, Hanna BS, Headrick T, Drake K, Grossman JC. Tuning the Potential Energy Landscape to Suppress Ostwald Ripening in Surface-Supported Catalyst Systems. NANO LETTERS 2019; 19:8388-8398. [PMID: 31674187 DOI: 10.1021/acs.nanolett.9b02237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rational control of nanoparticle (NP) size distribution during operation is crucial to improve catalytic performance and noble metal sustainability. Herein, we explore the Ostwald ripening (OR) of metal atoms on zeolite surfaces by a coupled theoretical-experimental approach. Zeolites with the same structure (ZSM-5) but different concentrations of aluminum doped into the matrix were observed to yield systematic differences in supported nanoparticle size distributions. Our first-principles simulations suggest that NP stability at high temperature is governed by both geometric constraints and the roughness of the energetic landscape. Calculated adatom migration paths across the zeolite surface and desorption paths from the supported NPs lend insight into the modified OR sintering processes with the emergence of different binding configurations as the aluminum concentration increases from pristine to heavily doped ZSM-5. These findings reveal the potential for the rational design of support structures to suppress OR sintering.
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Affiliation(s)
- Huashan Li
- School of Physics , Sun Yat-sen University , Guangzhou 510275 , China
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Steven C Hayden
- Advanced Materials Team, Aramco Research Center - Boston , Aramco Services Company , Cambridge , Massachusetts 02139 , United States
| | - Arthur France-Lanord
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Elisha Converse
- Advanced Materials Team, Aramco Research Center - Boston , Aramco Services Company , Cambridge , Massachusetts 02139 , United States
| | - Brian S Hanna
- Advanced Materials Team, Aramco Research Center - Boston , Aramco Services Company , Cambridge , Massachusetts 02139 , United States
| | - Tatiana Headrick
- Advanced Materials Team, Aramco Research Center - Boston , Aramco Services Company , Cambridge , Massachusetts 02139 , United States
| | - Kinsey Drake
- Advanced Materials Team, Aramco Research Center - Boston , Aramco Services Company , Cambridge , Massachusetts 02139 , United States
| | - Jeffrey C Grossman
- Department of Materials Science and Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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11
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Yuan S, Lv X, Zhang Y, Wu Y, Mao C, Zhou Y, Chen W, Wang Y. Fabrication of mesoporous SiO2/Au/Co3O4 hollow spheres catalysts with core-shell structure for liquid phase oxidation of benzyl alcohol to benzaldehyde. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.06.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Li Z, Gao L, Zhu X, Ma W, Feng X, Zhong Q. Synergistic Enhancement over Au‐Pd/TS‐1 Bimetallic Catalysts for Propylene Epoxidation with H
2
and O
2. ChemCatChem 2019. [DOI: 10.1002/cctc.201900845] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhishan Li
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Lin Gao
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Xiangshuai Zhu
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Weihua Ma
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
| | - Xiang Feng
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum Qingdao 266580 P. R. of China
| | - Qin Zhong
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 P. R. of China
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13
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Nanodisperse gold catalysts in oxidation of benzyl alcohol: comparison of various supports under different conditions. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01615-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Li H, Shen H, Pei C, Chen S, Wan Y. A Self‐Assembly Process for the Immobilization of N‐Modified Au Nanoparticles in Ordered Mesoporous Carbon with Large Pores. ChemCatChem 2019. [DOI: 10.1002/cctc.201900626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Li
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Hong Shen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Chun Pei
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Shangjun Chen
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
| | - Ying Wan
- Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materials and Department of ChemistryShanghai Normal University Shanghai 200234 P.R. China
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15
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Sharma M, Das B, Baruah MJ, Biswas S, Roy S, Hazarika A, Bhargava SK, Bania KK. Pd–Au–Y as Efficient Catalyst for C–C Coupling Reactions, Benzylic C–H Bond Activation, and Oxidation of Ethanol for Synthesis of Cinnamaldehydes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01197] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
| | | | | | | | - Subhasish Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati 781039, India
| | | | - Suresh K. Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, G.P.O. Box 2476, Melbourne 3001, Australia
| | - Kusum K. Bania
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, G.P.O. Box 2476, Melbourne 3001, Australia
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16
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Abstract
In the present review, the important and current developments of gold catalysts for a wide range of applications are comprehensively summarized. This review also provides a detailed study of the literature data concerning the preparation, characterization, and catalytic applications of gold catalysts. Additionally, the main aspects of using supported gold nanoparticles (AuNPs) as catalysts for oxidation reactions are considered. In particular, the oxidation of benzyl alcohol to benzaldehyde and the production of adipic acid from cyclohexane are discussed in detail. Lastly, the key properties of gold catalysts are described, and an outlook on the application of gold catalysts is presented.
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17
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Nowicka E, Althahban S, Leah TD, Shaw G, Morgan D, Kiely CJ, Roldan A, Hutchings GJ. Benzyl alcohol oxidation with Pd-Zn/TiO 2: computational and experimental studies. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:367-378. [PMID: 31068985 PMCID: PMC6493277 DOI: 10.1080/14686996.2019.1598237] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 05/22/2023]
Abstract
Pd-Zn/TiO2 catalysts containing 1 wt% total metal loading, but with different Pd to Zn ratios, were prepared using a modified impregnation method and tested in the solvent-free aerobic oxidation of benzyl alcohol. The catalyst with the higher Pd content exhibited an enhanced activity for benzyl alcohol oxidation. However, the selectivity to benzaldehyde was significantly improved with increasing presence of Zn. The effect of reduction temperature on catalyst activity was investigated for the catalyst having a Pd to Zn metal molar ratio of 9:1. It was found that lower reduction temperature leads to the formation of PdZn nanoparticles with a wide particle size distribution. In contrast, smaller PdZn particles were formed upon catalyst reduction at higher temperatures. Computational studies were performed to compare the adsorption energies of benzyl alcohol and the reaction products (benzaldehyde and toluene) on PdZn surfaces to understand the oxidation mechanism and further explain the correlation between the catalyst composition and its activity.
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Affiliation(s)
- Ewa Nowicka
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
| | - Sultan Althahban
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA
- Department of Mechanical Engineering, Jazan University, Jazan, Saudi Arabia
| | - Tom D. Leah
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
| | - Greg Shaw
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
| | - David Morgan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
| | - Christopher J. Kiely
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA, USA
| | - Alberto Roldan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
| | - Graham J. Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, UK
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18
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Campisi S, Ferri M, Chan-Thaw CE, Sanchez Trujillo FJ, Motta D, Tabanelli T, Dimitratos N, Villa A. Metal-Support Cooperative Effects in Au/VPO for the Aerobic Oxidation of Benzyl Alcohol to Benzyl Benzoate. NANOMATERIALS 2019; 9:nano9020299. [PMID: 30791618 PMCID: PMC6410264 DOI: 10.3390/nano9020299] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 02/11/2019] [Accepted: 02/15/2019] [Indexed: 01/29/2023]
Abstract
This paper studies the cooperative effect of Au nanoparticles deposited on vanadyl pyrophosphate oxide (VPO) in the liquid phase oxidation of benzyl alcohol. VPO was prepared using the classical method by thermally treating VOHPO4·0.5H2O precursor in reacting atmosphere at 420 °C for a period of 72 h. Au nanoparticles were deposited by incipient wetness method. The catalysts were characterized by means of XRD, TEM, XPS and Raman. The bulk VPO catalyst contains vanadyl pyrophosphate phase ((VO)2P2O7), and a small amount of VOPO4. The catalytic system exhibits a high activity in the base-free liquid phase oxidation of alcohols compared to Au on activated carbon, classic catalyst used for this type of reaction. Au/VPO showed a high peculiar selectivity to benzyl benzoate (76%), an important product used in the pharmaceutical and perfume industries. This behavior might be ascribed to the presence of strong acid sites of VPO, as determined by liquid phase titration. Stability tests performed on Au/VPO showed a deactivation of 10% after the first run, but a constant conversion along the following five cycles. This phenomenon can be attributed to the increase of mean Au particle size (from 19.1 to 23.4 nm) after recycling tests as well as the partial leaching of Au and V in the reaction media. Moreover, XRD evidenced a modification in the VPO structure with the partial formation of VOHPO4·0.5H2O phase.
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Affiliation(s)
- Sebastiano Campisi
- Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, 20133 Milano, Italy.
| | - Michele Ferri
- Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, 20133 Milano, Italy.
| | - Carine E Chan-Thaw
- Institut pour la Maîtrise de l'Énergie⁻Université d'Antananarivo BP 566, 101 Antananarivo, Madagascar.
| | - Felipe J Sanchez Trujillo
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
| | - Davide Motta
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
| | - Tommaso Tabanelli
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy.
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy.
| | - Alberto Villa
- Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, 20133 Milano, Italy.
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19
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Tareq S, Yap YHT, Saleh TA, Abdullah AH, Rashid U, Saiman MI. Synthesis of bimetallic gold-pallidum loaded on carbon as efficient catalysts for the oxidation of benzyl alcohol into benzaldehyde. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Abstract
In the last decades, the selective liquid phase oxidation of alcohols to the corresponding carbonyl compounds has been a subject of growing interest. Research has focused on green methods that use “clean” oxidants such as O2 in combination with supported metal nanoparticles as the catalyst. Among the alcohols, benzyl alcohol is one of the most studied substrates. Indeed, benzyl alcohol can be converted to benzaldehyde, largely for use in the pharmaceutical and agricultural industries. This conversion serves as model reaction in testing new potential catalysts, that can then be applied to other systems. Pd based catalysts have been extensively studied as active catalytic metals for alcohol oxidation for their high activity and selectivity to the corresponding aldehyde. Several catalytic materials obtained by careful control of the morphology of Pd nanoparticles, (including bimetallic systems) and by tuning the support properties have been developed. Moreover, reaction conditions, including solvent, temperature, pressure and alcohol concentration have been investigated to tune the selectivity to the desired products. Different reaction mechanisms and microkinetic models have been proposed. The aim of this review is to provide a critical description of the recent advances on Pd catalyzed benzyl alcohol oxidation.
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21
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Canbulat Özdemir M. Quinaldinium Chlorochromate(VI), (QnCC) Catalyzed Oxidation of Alcohols with Periodic Acid Under Solvent-Free Conditions and Microwave Irradition. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2018. [DOI: 10.18596/jotcsa.357452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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22
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Gong Y, Zhong H, Liu W, Zhang B, Hu S, Wang R. General Synthetic Route toward Highly Dispersed Ultrafine Pd-Au Alloy Nanoparticles Enabled by Imidazolium-Based Organic Polymers. ACS APPLIED MATERIALS & INTERFACES 2018; 10:776-786. [PMID: 29235853 DOI: 10.1021/acsami.7b16794] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Bimetallic Pd-Au nanoparticles (NPs) usually show superior catalytic performances over their single-component counterparts, the general and facile synthesis of subnanometer-scaled Pd-Au NPs still remains a great challenge, especially for electronegative ultrafine bimetallic NPs. Here, we develop an anion-exchange strategy for the synthesis of ultrafine Pd-Au alloy NPs. Simple treatment of main-chain imidazolium-based organic polymer (IOP) with HAuCl4 and Na2PdCl4, followed by reduction with NaBH4 generated Pd-Au alloy NPs (Pd-Au/IOP). These NPs possess an unprecedented tiny size of 1.50 ± 0.20 nm and are uniformly dispersed over IOP. The electronic structure of the surface Pd and Au atoms is optimized via electron exchange during alloying, a net charge flowing resulting from counteranions is injected into Au and Pd to form a strong ensemble effect, which is responsible for a remarkably higher catalytic activity of Pd-Au/IOP in the hydrolytic dehydrogenation of ammonia borane than those of monometallic counterparts.
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Affiliation(s)
- Yaqiong Gong
- School of Chemical Engineering and Environment, North University of China , Taiyuan 030051, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, Fujian, China
| | - Hong Zhong
- School of Chemical Engineering and Environment, North University of China , Taiyuan 030051, China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, Fujian, China
| | - Wenhui Liu
- School of Chemical Engineering and Environment, North University of China , Taiyuan 030051, China
| | - Bingbing Zhang
- School of Chemical Engineering and Environment, North University of China , Taiyuan 030051, China
| | - Shuangqi Hu
- School of Chemical Engineering and Environment, North University of China , Taiyuan 030051, China
| | - Ruihu Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, Fujian, China
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Metaxas I, Vasilikogiannaki E, Stratakis M. Synthesis of Formate Esters and Formamides Using an Au/TiO₂-Catalyzed Aerobic Oxidative Coupling of Paraformaldehyde. NANOMATERIALS 2017; 7:nano7120440. [PMID: 29231853 PMCID: PMC5746930 DOI: 10.3390/nano7120440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/20/2017] [Accepted: 12/06/2017] [Indexed: 01/06/2023]
Abstract
A simple method for the synthesis of formate esters and formamides is presented based on the Au/TiO₂-catalyzed aerobic oxidative coupling between alcohols or amines and formaldehyde. The suitable form of formaldehyde is paraformaldehyde, as cyclic trimeric 1,3,5-trioxane is inactive. The reaction proceeds via the formation of an intermediate hemiacetal or hemiaminal, respectively, followed by the Au nanoparticle-catalyzed aerobic oxidation of the intermediate. Typically, the oxidative coupling between formaldehyde (2 equiv) and amines occurs quantitatively at room temperature within 4 h, and there is no need to add a base as in analogous coupling reactions. The oxidative coupling between formaldehyde (typically 3 equiv) and alcohols is unprecedented and occurs more slowly, yet in good to excellent yields and selectivity. Minor side-products (2-12%) from the acetalization of formaldehyde by the alcohol are also formed. The catalyst is recyclable and can be reused after a simple filtration in five consecutive runs with a small loss of activity.
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Affiliation(s)
- Ioannis Metaxas
- Department of Chemistry, University of Crete, Voutes, 71003 Iraklion, Greece.
| | | | - Manolis Stratakis
- Department of Chemistry, University of Crete, Voutes, 71003 Iraklion, Greece.
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24
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In Situ and Ex Situ Immobilization of Nano Gold Particles in Zeolite Framework and a Comparison of Their Photocatalytic Activities. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0753-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Cera G, Biffis A, Canton P, Villa A, Prati L. Metal nanoclusters stabilized by pH-responsive microgels: Preparation and evaluation of their catalytic potential. REACT FUNCT POLYM 2017. [DOI: 10.1016/j.reactfunctpolym.2017.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Carbon Quantum Dots-TiO2 Nanocomposites with Enhanced Catalytic Activities for Selective Liquid Phase Oxidation of Alcohols. Catal Letters 2017. [DOI: 10.1007/s10562-017-2065-x] [Citation(s) in RCA: 12] [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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27
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Injongkol Y, Maihom T, Choomwattana S, Boekfa B, Limtrakul J. A mechanistic study of ethanol transformation into ethene and acetaldehyde on an oxygenated Au-exchanged ZSM-5 zeolite. RSC Adv 2017. [DOI: 10.1039/c7ra06313j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ethanol transformation to ethene and acetaldehyde over low- and high-spin state oxygenated Au-exchanged ZSM-5 zeolite have been investigated by means of density functional calculations with the M06-L functional.
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Affiliation(s)
- Yuwanda Injongkol
- Department of Chemistry
- Faculty of Liberal Arts and Science
- Kasetsart University
- Kamphaeng Saen Campus
- Nakhon Pathom 73140
| | - Thana Maihom
- Department of Chemistry
- Faculty of Liberal Arts and Science
- Kasetsart University
- Kamphaeng Saen Campus
- Nakhon Pathom 73140
| | - Saowapak Choomwattana
- Center of Data Mining and Biomedical Informatics
- Faculty of Medical Technology
- Mahidol University
- Salaya Campus
- Nakhon Pathom 73170
| | - Bundet Boekfa
- Department of Chemistry
- Faculty of Liberal Arts and Science
- Kasetsart University
- Kamphaeng Saen Campus
- Nakhon Pathom 73140
| | - Jumras Limtrakul
- Department of Materials Science and Engineering
- Vidyasirimedhi Institute of Science and Technology
- Rayong 21210
- Thailand
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28
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Lamei K, Eshghi H, Bakavoli M, Rostamnia S. Magnetically Recoverable Gold Nanorods as a Novel Catalyst for the Facile Reduction of Nitroarenes Under Aqueous Conditions. Catal Letters 2016. [DOI: 10.1007/s10562-016-1921-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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29
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Hashemian S, Sedrpoushan A, Eshbala FH. Co-Zeolite Imidazolate Frameworks (ZIF-9@Zeolite) as Heterogen Catalyst for Alcohols Oxidation. Catal Letters 2016. [DOI: 10.1007/s10562-016-1855-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Copper(II)-Substituted Polyoxotungstates Immobilized on Amine-Functionalized SBA-15: Efficient Heterogeneous Catalysts for Liquid Phase Oxidative Reaction. Catal Letters 2016. [DOI: 10.1007/s10562-016-1874-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Transition Metal-Free Carbon Quantum Dots for Selective Liquid Phase Oxidation of Alcohols Using Water as an Only Solvent. Catal Letters 2016. [DOI: 10.1007/s10562-016-1714-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Sharma AS, Kaur H, Shah D. Selective oxidation of alcohols by supported gold nanoparticles: recent advances. RSC Adv 2016. [DOI: 10.1039/c5ra25646a] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The review presents a commercially important field of alcohol oxidation using gold nanoparticles. It systematically discusses scope and limitation of various supports on the activity and selectivity of catalyst.
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Affiliation(s)
- Anuj S. Sharma
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Harjinder Kaur
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
| | - Dipen Shah
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad
- India
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33
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Villa A, Wang D, Su DS, Prati L. New challenges in gold catalysis: bimetallic systems. Catal Sci Technol 2015. [DOI: 10.1039/c4cy00976b] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Since the discovery of the peculiar catalytic activity of gold catalysts, it became clear that gold could play a fundamental role also as a modifier.
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Affiliation(s)
- Alberto Villa
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Di Wang
- Institut für Nanotechnologie
- Karlsruher Institut für Technologie
- Germany
| | - Dang Sheng Su
- Department of Inorganic Chemistry
- Fritz Haber Institute of the Max Planck Society
- Berlin 14195
- Germany
- Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences
| | - Laura Prati
- Dipartimento di Chimica
- Università degli Studi di Milano
- 20133 Milano
- Italy
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34
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Rahman ZU, Zhang T, Cui S, Wang D. Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers. RSC Adv 2015. [DOI: 10.1039/c5ra18119d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanocomposite catalysts, with single and double gold layers, and with one gold layer and one silver layer were prepared through simple steps, and showed excellent activity in the reduction of nitrophenols.
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Affiliation(s)
- Zia Ur Rahman
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Tingting Zhang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Siwen Cui
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
| | - Daoai Wang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- China
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35
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36
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Titanium dioxide as a catalyst support in heterogeneous catalysis. ScientificWorldJournal 2014; 2014:727496. [PMID: 25383380 PMCID: PMC4213406 DOI: 10.1155/2014/727496] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 07/22/2014] [Accepted: 08/10/2014] [Indexed: 01/16/2023] Open
Abstract
The lack of stability is a challenge for most heterogeneous catalysts. During operations, the agglomeration of particles may block the active sites of the catalyst, which is believed to contribute to its instability. Recently, titanium oxide (TiO2) was introduced as an alternative support material for heterogeneous catalyst due to the effect of its high surface area stabilizing the catalysts in its mesoporous structure. TiO2 supported metal catalysts have attracted interest due to TiO2 nanoparticles high activity for various reduction and oxidation reactions at low pressures and temperatures. Furthermore, TiO2 was found to be a good metal oxide catalyst support due to the strong metal support interaction, chemical stability, and acid-base property. The aforementioned properties make heterogeneous TiO2 supported catalysts show a high potential in photocatalyst-related applications, electrodes for wet solar cells, synthesis of fine chemicals, and others. This review focuses on TiO2 as a support material for heterogeneous catalysts and its potential applications.
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37
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Sankar M, Nowicka E, Carter E, Murphy DM, Knight DW, Bethell D, Hutchings GJ. The benzaldehyde oxidation paradox explained by the interception of peroxy radical by benzyl alcohol. Nat Commun 2014; 5:3332. [PMID: 24567108 DOI: 10.1038/ncomms4332] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 01/28/2014] [Indexed: 11/09/2022] Open
Abstract
Benzaldehyde readily undergoes autoxidation to form benzoic acid on exposure to air at room temperature. Yet it can be formed in high yield from, for example, benzyl alcohol by oxidation using a variety of procedures and catalysts. Here we report the evidence to resolve this apparent paradox. It is confirmed that benzyl alcohol (and a number of other alcohols), even at low concentrations in benzaldehyde, inhibits the autoxidation. Furthermore we report on the structural features required for inhibition. Electron paramagnetic resonance spin trapping experiments demonstrate that benzyl alcohol intercepts, by hydrogen atom transfer, the benzoylperoxy radicals that play a key role in benzaldehyde autoxidation. A similar inhibition effect has also been observed for the aliphatic octanal/1-octanol system.
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Affiliation(s)
| | - Ewa Nowicka
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Emma Carter
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Damien M Murphy
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - David W Knight
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
| | - Donald Bethell
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, UK
| | - Graham J Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
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38
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Alhumaimess M, Lin Z, He Q, Lu L, Dimitratos N, Dummer NF, Conte M, Taylor SH, Bartley JK, Kiely CJ, Hutchings GJ. Oxidation of Benzyl Alcohol and Carbon Monoxide Using Gold Nanoparticles Supported on MnO2Nanowire Microspheres. Chemistry 2014; 20:1701-10. [DOI: 10.1002/chem.201303355] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Indexed: 11/08/2022]
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39
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Zhang H, Fu L, Zhong H. Silica gel-supported TEMPO with adsorbed NOx for selective oxidation of alcohols under mild conditions. CHINESE JOURNAL OF CATALYSIS 2013. [DOI: 10.1016/s1872-2067(12)60657-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Patel A, Singh S. Bifunctional Catalytic Activity of 12-Tungstophosphoric Acid Impregnated to Different Supports for Esterification and Oxidation of Benzyl Alcohol: A Comparative Study on Catalytic Activity and Kinetics. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400953d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anjali Patel
- Polyoxometalates and Catalysis Laboratory, Department of Chemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, India
| | - Sukriti Singh
- Polyoxometalates and Catalysis Laboratory, Department of Chemistry, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, India
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41
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Zheng J, Dong Y, Wang W, Ma Y, Hu J, Chen X, Chen X. In situ loading of gold nanoparticles on Fe3O4@SiO2 magnetic nanocomposites and their high catalytic activity. NANOSCALE 2013; 5:4894-901. [PMID: 23624783 DOI: 10.1039/c3nr01075a] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this work, a facile approach was successfully developed for in situ catalyzing Au nanoparticles loaded on Fe3O4@SiO2 magnetic nanospheres via Sn(2+) linkage and reduction. After the Fe3O4@SiO2 MNPs were first prepared via a sol-gel process, only one step was needed to synthesize the Fe3O4@SiO2-Au magnetic nanocomposites (Fe3O4@SiO2-Au MNCs), so that both the synthesis step and the reaction cost were remarkably decreased. Significantly, the as-synthesized Fe3O4@SiO2-Au MNCs showed high performance in the catalytic reduction of 4-nitrophenol to 4-aminophenol and could be reused for several cycles with convenient magnetic separability. This approach provided a useful platform based on Fe3O4@SiO2 MNPs for the fabrication of Au or other noble metal magnetic nanocatalysts, which would be very useful in various catalytic reductions.
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Affiliation(s)
- Jinmin Zheng
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, China
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42
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43
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Liu P, Li C, Hensen EJM. Efficient tandem synthesis of methyl esters and imines by using versatile hydrotalcite-supported gold nanoparticles. Chemistry 2012; 18:12122-9. [PMID: 22893610 DOI: 10.1002/chem.201202077] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Indexed: 11/11/2022]
Abstract
Efficient basic hydrotalcite (HT)-supported gold nanoparticle (AuNP) catalysts have been developed for the aerobic oxidative tandem synthesis of methyl esters and imines from primary alcohols catalyzed under mild and soluble-base-free conditions. The catalytic performance can be fine-tuned for these cascade reactions by simple adjustment of the Mg/Al atomic ratio of the HT support. The one-pot synthesis of methyl esters benefits from high basicity (Mg/Al = 5), whereas moderate basicity greatly improves imine selectivity (Mg/Al = 2). These catalysts outperform previously reported AuNP catalysts by far. Kinetic studies show a cooperative enhancement between AuNP and the surface basic sites, which not only benefits the oxidation of the starting alcohol but also the subsequent steps of the tandem reactions. To the best of our knowledge, this is the first time that straightforward control of the composition of the support has been shown to yield optimum AuNP catalysts for different tandem reactions.
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Affiliation(s)
- Peng Liu
- Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands
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44
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Zhang F, Xie F, Fang T, Zhang K, Chen T, Oh W. Photocatalytic Degradation of Methyl Orange on Platinum and Palladium Co-doped TiO2 Nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/15533174.2011.615040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Fengjun Zhang
- a Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture , Anhui Hefei , P. R. China
- b Engineering Research Center of Building Energy-efficient Control and Evaluation, Ministry of Education , Hefei , P. R. China
| | - Fazhi Xie
- a Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture , Anhui Hefei , P. R. China
| | - Tingyong Fang
- b Engineering Research Center of Building Energy-efficient Control and Evaluation, Ministry of Education , Hefei , P. R. China
| | - Kan Zhang
- c Center for Superfunctional Materials, Department of Chemistry , Pohang University of Science and Technology, Hyojadong, Namgu , Pohang , Korea
| | - Tao Chen
- d Center of Analysis and Testing, Anhui Academy of Science and Technology , Anhui Hefei , P. R. China
| | - Wonchun Oh
- e Department of Advanced Materials & Science Engineering , Hanseo University , Chungnam , Korea
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45
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Zhang X, Ke X, Zhu H. Zeolite-Supported Gold Nanoparticles for Selective Photooxidation of Aromatic Alcohols under Visible-Light Irradiation. Chemistry 2012; 18:8048-56. [DOI: 10.1002/chem.201200368] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Indexed: 11/09/2022]
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46
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Organic–Inorganic Hybrid SiO2 Supported Gold Nanoparticles: Facile Preparation and Catalytic Hydrogenation of Aromatic Nitro Compounds. Catal Letters 2012. [DOI: 10.1007/s10562-012-0821-5] [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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47
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Evangelisti C, Schiavi E, Aronica LA, Caporusso AM, Vitulli G, Bertinetti L, Martra G, Balerna A, Mobilio S. Bimetallic Gold–Palladium vapour derived catalysts: The role of structural features on their catalytic activity. J Catal 2012. [DOI: 10.1016/j.jcat.2011.11.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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48
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Patel A, Pathan S. Solvent Free Selective Oxidation of Styrene and Benzyl Alcohol to Benzaldehyde over an Eco-Friendly and Reusable Catalyst, Undecamolybdophosphate Supported onto Neutral Alumina. Ind Eng Chem Res 2011. [DOI: 10.1021/ie2020608] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anjali Patel
- Department of Chemistry, Faculty of Science, M. S. University of Baroda, Vadodara 390002, India
| | - Soyeb Pathan
- Department of Chemistry, Faculty of Science, M. S. University of Baroda, Vadodara 390002, India
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49
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Guo H, Al-Hunaiti A, Kemell M, Rautiainen S, Leskelä M, Repo T. Gold Catalysis Outside Nanoscale: Bulk Gold Catalyzes the Aerobic Oxidation of π-Activated Alcohols. ChemCatChem 2011. [DOI: 10.1002/cctc.201100286] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Lim MK, Oh SC, Rhee HJ. Pd/C Catalyzed Oxidation of Secondary Benzylic Alcohols using Chlorobenzene under an Inert Condition. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.3179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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