1
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Zheng Y, Yang Y, Li Y, Cai L, Zhao X, Xue B, Li Y, An J, Zhang J. Preparation of Hydrophobic Au Catalyst and Application in One-Step Oxidative Esterification of Methacrolein to Methyl Methacrylate. Molecules 2024; 29:1854. [PMID: 38675674 PMCID: PMC11055172 DOI: 10.3390/molecules29081854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/07/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
The water produced during the oxidative esterification reaction occupies the active sites and reduces the activity of the catalyst. In order to reduce the influence of water on the reaction system, a hydrophobic catalyst was prepared for the one-step oxidative esterification of methylacrolein (MAL) and methanol. The catalyst was synthesized by loading the active component Au onto ZnO using the deposition-precipitation method, followed by constructing the silicon shell on Au/ZnO using tetraethoxysilane (TEOS) to introduce hydrophobic groups. Trimethylchlorosilane (TMCS) was used as a hydrophobic modification reagent to prepare hydrophobic catalysts, which exhibited a water droplet contact angle of 111.2°. At a temperature of 80 °C, the hydrophobic catalyst achieved a high MMA selectivity of over 95%. The samples were characterized using XRD, N2 adsorption, ICP, SEM, TEM, UV-vis, FT-IR, XPS, and water droplet contact angle measurements. Kinetic analysis revealed an activation energy of 22.44 kJ/mol for the hydrophobic catalyst.
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Affiliation(s)
- Yanxia Zheng
- Institute of Clean Chemical Technology, School of Chemistry and Chemical Engineering, Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials, Shandong University of Technology, Zibo 255049, China; (Y.Z.)
| | - Yubo Yang
- Institute of Clean Chemical Technology, School of Chemistry and Chemical Engineering, Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials, Shandong University of Technology, Zibo 255049, China; (Y.Z.)
| | - Yixuan Li
- School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Lu Cai
- Institute of Clean Chemical Technology, School of Chemistry and Chemical Engineering, Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials, Shandong University of Technology, Zibo 255049, China; (Y.Z.)
| | - Xuanjiao Zhao
- Institute of Clean Chemical Technology, School of Chemistry and Chemical Engineering, Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials, Shandong University of Technology, Zibo 255049, China; (Y.Z.)
| | - Bing Xue
- School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China
| | - Yuchao Li
- Institute of Clean Chemical Technology, School of Chemistry and Chemical Engineering, Shandong Collegial Engineering Research Center of Novel Rare Earth Catalysis Materials, Shandong University of Technology, Zibo 255049, China; (Y.Z.)
| | - Jiutao An
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, China
| | - Jialiang Zhang
- Shandong Mingsheng Environmental Protection Technology Co., Ltd., Jinan 250000, China
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2
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Vieira B, Padrão J, Alves C, Silva CJ, Vilaça H, Zille A. Enhancing Functionalization of Health Care Textiles with Gold Nanoparticle-Loaded Hydroxyapatite Composites. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111752. [PMID: 37299655 DOI: 10.3390/nano13111752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/11/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023]
Abstract
Hospitals and nursing home wards are areas prone to the propagation of infections and are of particular concern regarding the spreading of dangerous viruses and multidrug-resistant bacteria (MDRB). MDRB infections comprise approximately 20% of cases in hospitals and nursing homes. Healthcare textiles, such as blankets, are ubiquitous in hospitals and nursing home wards and may be easily shared between patients/users without an adequate pre-cleaning process. Therefore, functionalizing these textiles with antimicrobial properties may considerably reduce the microbial load and prevent the propagation of infections, including MDRB. Blankets are mainly comprised of knitted cotton (CO), polyester (PES), and cotton-polyester (CO-PES). These fabrics were functionalized with novel gold-hydroxyapatite nanoparticles (AuNPs-HAp) that possess antimicrobial properties, due to the presence of the AuNPs' amine and carboxyl groups, and low propensity to display toxicity. For optimal functionalization of the knitted fabrics, two pre-treatments, four different surfactants, and two incorporation processes were evaluated. Furthermore, exhaustion parameters (time and temperature) were subjected to a design of experiments (DoE) optimization. The concentration of AuNPs-HAp in the fabrics and their washing fastness were critical factors assessed through color difference (ΔE). The best performing knitted fabric was half bleached CO, functionalized using a surfactant combination of Imerol® Jet-B (surfactant A) and Luprintol® Emulsifier PE New (surfactant D) through exhaustion at 70 °C for 10 min. This knitted CO displayed antibacterial properties even after 20 washing cycles, showing its potential to be used in comfort textiles within healthcare environments.
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Affiliation(s)
- Bárbara Vieira
- CITEVE, Technological Centre for the Textile & Clothing Industry, 4760-034 Vila Nova de Famalicão, Portugal
- Centre for Textile Science and Technology, University of Minho, 4800-058 Guimarães, Portugal
| | - Jorge Padrão
- Centre for Textile Science and Technology, University of Minho, 4800-058 Guimarães, Portugal
| | - Cátia Alves
- Centre for Textile Science and Technology, University of Minho, 4800-058 Guimarães, Portugal
| | - Carla Joana Silva
- CITEVE, Technological Centre for the Textile & Clothing Industry, 4760-034 Vila Nova de Famalicão, Portugal
| | - Helena Vilaça
- CITEVE, Technological Centre for the Textile & Clothing Industry, 4760-034 Vila Nova de Famalicão, Portugal
| | - Andrea Zille
- Centre for Textile Science and Technology, University of Minho, 4800-058 Guimarães, Portugal
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3
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Thermodynamic Study of One-step Production from Isobutene to Methyl Methacrylate. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2022. [DOI: 10.9767/bcrec.17.3.15574.590-607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Methyl methacrylate (MMA) has emerged as an essential industrial monomer. However, the toxic by-production and shortage supply of MMA in the global market has gained great attention. Herein, a one-step synthesis to produce MMA from isobutene via a direct oxidative esterification process has been demonstrated to curb the aforementioned downsides. Thermodynamic analysis via Gibbs free energy minimization method proved the feasibility of this route via the equilibrium constant. Despite tert-butanol and isobutane showed higher equilibrium constant than isobutene, they should be avoided. Isobutane is highly flammable while the precursor of tert-butanol is exorbitant. Thus, isobutene was selected for the equilibrium compositions screening. Isobutene conversion was 90% and 15% MMA yield at 700 °C and IBN: O2: MeOH ratio with 1:7:1. This route is mainly limited by the generation of side reactions from the reaction of CH3OH and O2. By varying the feedstock ratio at 1:2:1, the MMA yield increased to ~25%. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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4
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Zn Promoted Mg-Al Mixed Oxides-Supported Gold Nanoclusters for Direct Oxidative Esterification of Aldehyde to Ester. Int J Mol Sci 2021; 22:ijms22168668. [PMID: 34445372 PMCID: PMC8395456 DOI: 10.3390/ijms22168668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/05/2021] [Accepted: 08/10/2021] [Indexed: 01/25/2023] Open
Abstract
The synthesis of ester compounds is one of the most important chemical processes. In this work, Zn-Mg-Al mixed oxides with different Zn2+/Mg2+ molar ratios were prepared via co-precipitation method and supported gold nanoclusters to study the direct oxidative esterification of aldehyde and alcohol in the presence of molecular oxygen. Various characterization techniques such as N2-physical adsorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and CO2 temperature programmed desorption (TPD) were utilized to analyze the structural and electronic properties. Based on the results, the presence of small amounts of Zn2+ ions (~5 wt.%) provoked a remarkable modification of the binary Mg-Al system, which enhanced the interaction between gold with the support and reduced the particle size of gold. For oxidative esterification reaction, the Au25/Zn0.05MgAl-400 catalyst showed the best performance, with the highest turnover frequency (TOF) of 1933 h−1. The active center was believed to be located at the interface between metallic gold with the support, where basic sites contribute a lot to transformation of the substrate.
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5
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Autthanit C, Likitpiriya N, Praserthdam P, Jongsomjit B. Development of a New Ternary Al 2O 3-HAP-Pd Catalyst for Diethyl Ether and Ethylene Production Using the Preferential Dehydration of Ethanol. ACS OMEGA 2021; 6:19911-19923. [PMID: 34368578 PMCID: PMC8340412 DOI: 10.1021/acsomega.1c02818] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
This study aims to convert ethanol to higher value-added products, particularly diethyl ether and ethylene using the catalytic dehydration of ethanol. Hence, the gas-phase dehydration of ethanol over Al2O3-HAP catalysts as such and modified by addition of palladium (Pd) in a microreactor was evaluated. The commercial Al2O3-HAP catalyst was first prepared by the physical mixing method, and then, the optimal ratio of the Al2O3-HAP catalyst (2:8 by wt %) was impregnated with Pd to develop a new functional catalyst to alter surface acidity. Based on the results, the combination of Al2O3 and HAP catalysts generated significant quantities of weak acid sites which demonstrates an enhancement in catalytic activity. In addition, Pd modification in the optimal composition ratio of the Al2O3-HAP catalyst extremely increased the amount of weak acid sites as well as weak acid density due to the synergistic effect between the Pd and Al2O3-HAP catalyst that are supposed to suggest the active sites in the reaction. Among all catalysts, the Al20-HAP80-Pd catalyst displayed brilliant catalytic performance in the course of diethyl ether yield (ca. 51.0%) at a reaction temperature of 350 °C and ethylene yield (ca. 75.0%) at a reaction temperature of 400 °C having an outstanding stability under time-on-stream for 10 h. This is recognized to the combination of the effects of weak acid sites (Lewis acidity), small amount of strong acid sites, and structural characteristics of the catalytic materials used.
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Affiliation(s)
- Chaowat Autthanit
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Bio-Circular-Green-Economy
Technology & Engineering Center, BCGeTEC, Department of Chemical
Engineering, Faculty of Engineering, Chulalongkorn
University, Bangkok 10330, Thailand
| | - Nutdanai Likitpiriya
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Piyasan Praserthdam
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bunjerd Jongsomjit
- Center
of Excellence on Catalysis and Catalytic Reaction Engineering, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Bio-Circular-Green-Economy
Technology & Engineering Center, BCGeTEC, Department of Chemical
Engineering, Faculty of Engineering, Chulalongkorn
University, Bangkok 10330, Thailand
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6
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Lim S, Kwon S, Kim N, Na K. A Multifunctional Au/CeO 2-Mg(OH) 2 Catalyst for One-Pot Aerobic Oxidative Esterification of Aldehydes with Alcohols to Alkyl Esters. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1536. [PMID: 34200722 PMCID: PMC8230364 DOI: 10.3390/nano11061536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 11/17/2022]
Abstract
Au nanoparticles bound to crystalline CeO2 nanograins that were dispersed on the nanoplate-like Mg(OH)2, denoted as Au/CeO2-Mg(OH)2, were developed as the highly active and selective multifunctional heterogeneous catalyst for direct oxidative esterification of aldehydes with alcohols to produce alkyl esters under base-free aerobic conditions using oxygen or air as the green oxidants. Au/CeO2-Mg(OH)2 converted 93.3% of methacrylaldehyde (MACR) to methyl methacrylate (MMA, monomer of poly(methyl methacrylate)) with 98.2% selectivity within 1 h, and was repeatedly used over eight recycle runs without regeneration. The catalyst was extensively applied to other aldehydes and alcohols to produce desirable alkyl esters. Comprehensive characterization analyses revealed that the strong metal-support interaction (SMSI) among the three catalytic components (Au, CeO2, and Mg(OH)2), and the proximity and strong contact between Au/CeO2 and the Mg(OH)2 surface were prominent factors that accelerated the reaction toward a desirable oxidative esterification pathway. During the reaction, MACR was adsorbed on the surface of CeO2-Mg(OH)2, upon which methanol was simultaneously activated for esterifying the adsorbed MACR. Hemiacetal-form intermediate species were subsequently produced and oxidized to MMA on the surface of the electron-rich Au nanoparticles bound to partially reduced CeO2-x with electron-donating properties. The present study provides new insights into the design of SMSI-induced supported-metal-nanoparticles for the development of novel, multifunctional, and heterogeneous catalysts.
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Affiliation(s)
| | | | | | - Kyungsu Na
- Department of Chemistry, Chonnam National University, Gwangju 61186, Korea; (S.L.); (S.K.); (N.K.)
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7
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Efficient Synthesis of Methyl Methacrylate by One Step Oxidative Esterification over Zn-Al-Mixed Oxides Supported Gold Nanocatalysts. Catalysts 2021. [DOI: 10.3390/catal11020162] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Methyl methacrylate (MMA) is an important monomer in fine chemicals. The synthesis of MMA by one-step oxidative esterification from methacrolein with methanol over a heterogeneous catalyst with high activity, selectivity and stability is highly desirable. Herein, Zn-Al-hydrotalcites (HTs)-supported atomically precise Au25 nanoclusters with different molar ratios of Zn2+/Al3+ were prepared and used as the precursors for this reaction. They exhibited good performances in comparison with the gold catalysts prepared by the deposition precipitation method. The structural and electronic properties were evaluated by various characterization technologies, including X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), in situ diffuse reflectance infrared Fourier-transform spectroscopy (DRIFTS) of CO adsorption, X-ray photoelectron spectroscopy (XPS), and CO2 temperature-programmed desorption (TPD). The combined characterization results suggested that the adsorption property of gold and the basicity of the catalyst contributes to their high activities. Substrates extended experiments and stability tests implied the potential application of Zn-Al-mixed oxides supported gold catalysts, which paves a new way for supported gold catalyst in the one-step oxidation esterification reaction.
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8
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Nishio H, Miura H, Kamata K, Shishido T. Deposition of highly dispersed gold nanoparticles onto metal phosphates by deposition–precipitation with aqueous ammonia. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01627j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deposition–precipitation with aqueous ammonia enabled small gold nanoparticles to be deposited onto a series of metal phosphates with high dispersity and density.
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Affiliation(s)
- Hidenori Nishio
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Hiroki Miura
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
| | - Keigo Kamata
- Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama-city, Kanagawa, 226-8503, Japan
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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9
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Trimpalis A, Giannakakis G, Cao S, Flytzani-Stephanopoulos M. NiAu single atom alloys for the selective oxidation of methacrolein with methanol to methyl methacrylate. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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10
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Guan Y, Ma H, Chen W, Li M, Qian G, Chen D, Zhou X, Duan X. Methyl Methacrylate Synthesis: Thermodynamic Analysis for Oxidative Esterification of Methacrolein and Aldol Condensation of Methyl Acetate. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02017] [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]
Affiliation(s)
- Yanan Guan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hongqin Ma
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wenyao Chen
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Maoshuai Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300350, China
| | - Gang Qian
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
| | - Xinggui Zhou
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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11
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Sankar M, He Q, Engel RV, Sainna MA, Logsdail AJ, Roldan A, Willock DJ, Agarwal N, Kiely CJ, Hutchings GJ. Role of the Support in Gold-Containing Nanoparticles as Heterogeneous Catalysts. Chem Rev 2020; 120:3890-3938. [PMID: 32223178 PMCID: PMC7181275 DOI: 10.1021/acs.chemrev.9b00662] [Citation(s) in RCA: 153] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
![]()
In
this review, we discuss selected examples from recent literature
on the role of the support on directing the nanostructures of Au-based
monometallic and bimetallic nanoparticles. The role of support is
then discussed in relation to the catalytic properties of Au-based
monometallic and bimetallic nanoparticles using different gas phase
and liquid phase reactions. The reactions discussed include CO oxidation,
aerobic oxidation of monohydric and polyhydric alcohols, selective
hydrogenation of alkynes, hydrogenation of nitroaromatics, CO2 hydrogenation, C–C coupling, and methane oxidation.
Only studies where the role of support has been explicitly studied
in detail have been selected for discussion. However, the role of
support is also examined using examples of reactions involving unsupported
metal nanoparticles (i.e., colloidal nanoparticles). It is clear that
the support functionality can play a crucial role in tuning the catalytic
activity that is observed and that advanced theory and characterization
add greatly to our understanding of these fascinating catalysts.
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Affiliation(s)
| | - Qian He
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K.,Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575
| | - Rebecca V Engel
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - Mala A Sainna
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - Andrew J Logsdail
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - Alberto Roldan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - David J Willock
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - Nishtha Agarwal
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
| | - Christopher J Kiely
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K.,Department of Materials Science and Engineering, Lehigh University, 5 East Packer Avenue, Bethlehem, Pennsylvania 18015-3195, United States
| | - Graham J Hutchings
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, U.K
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12
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Abstract
Gold catalysts have been reported to exhibit good performance in aerobic oxidation of alcohols, but the intrinsic origin of the catalytic reactivity is still illusive. The catalyst preparation method, the morphology of the gold particles, and even the support might be key factors that determine the activity. Here, we prepared a series of gold catalysts with different supports, i.e., the hydrotalcite (HT), ZnO, MgO, Al2O3, and SiO2, by using the atomically controlled Au25 nanoclusters (NCs) as the gold precursor. The characterization results of the X-ray diffraction (XRD), UV-vis and transmission electron microscopy (TEM) show that the gold particles were mostly uniformly distributed on the supports, with a mean particle size within 3 nm. In aerobic oxidation of benzyl alcohol, the MgAl-HT- and Al2O3-supported Au25 NCs display good performances, with turnover frequency (TOF) values of ~2927 and 2892 h−1, respectively, whereas the SiO2-, MgO-, and ZnO-supported analogues show much inferior activity. The high resolution TEM and X-ray photoelectron spectra (XPS) results suggest that the interactions between gold and the supports in different samples are differing, which influences the morphology and the nature of gold. Our results further point to the importance of acid-base property of the support and the metal-support synergy rather than the gold particle size alone in achieving high-performance in selective alcohol oxidation. Moreover, this work provided a good way to design gold catalysts with controllable sizes that is crucial for understanding the reaction process in aerobic oxidation of alcohol.
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13
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Avasthi K, Bohre A, Grilc M, Likozar B, Saha B. Advances in catalytic production processes of biomass-derived vinyl monomers. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00598c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review provides a summary and perspective for three bio-derived vinyl monomers – acrylic acid, methacrylic acid and styrene.
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Affiliation(s)
- Kalpana Avasthi
- Department of Catalysis and Chemical Reaction Engineering
- National Institute of Chemistry
- 1000 Ljubljana
- Slovenia
| | - Ashish Bohre
- Department of Catalysis and Chemical Reaction Engineering
- National Institute of Chemistry
- 1000 Ljubljana
- Slovenia
| | - Miha Grilc
- Department of Catalysis and Chemical Reaction Engineering
- National Institute of Chemistry
- 1000 Ljubljana
- Slovenia
| | - Blaž Likozar
- Department of Catalysis and Chemical Reaction Engineering
- National Institute of Chemistry
- 1000 Ljubljana
- Slovenia
| | - Basudeb Saha
- Catalysis Center for Energy Innovation
- University of Delaware
- Newark
- USA
- RiKarbon, Inc
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14
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Zhao G, Gao E, Wan Q, Liu Q, Liang J, Qiao Y, Zhao G, Tian Y. Structure‐Activity Relationships of Au/Al
2
O
3
Catalyst for the Selective Oxidative Esterification of 1,3‐Propanediol and Methanol. ChemistrySelect 2019. [DOI: 10.1002/slct.201903059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guoming Zhao
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
- CAS Key Laboratory of Biobased MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
| | - Enyuan Gao
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
| | - Qiaoqiao Wan
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
| | - Qing Liu
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
| | - Junjie Liang
- CAS Key Laboratory of Biobased MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
- College of Chemistry and Chemical EngineeringGuizhou University Guiyang 550025 China
| | - Yingyun Qiao
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum (East China) Qingdao 266580 China
| | - Guangzhen Zhao
- CAS Key Laboratory of Biobased MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
| | - Yuanyu Tian
- Key Laboratory of Low Carbon Energy and Chemical EngineeringCollege of Chemical and Environmental EngineeringShandong University of Science and Technology Qingdao 266590 China
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum (East China) Qingdao 266580 China
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15
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Li Y, Tian Y, Zheng Y, Ge T, Fu Z, Jiao T, Wang M, Huang H, Zuo C. Direct oxidation esterification of methacrolein with methanol: Oxygen vacancy promotion of Zr‐doped Au/CeO
2
nanorods. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23659] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuchao Li
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Yun Tian
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Yanxia Zheng
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Tingting Ge
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Zhongjun Fu
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Tiantian Jiao
- College of Chemical & Environmental EngineeringShandong University of Science and Technology Qingdao P. R. China
| | - Ming Wang
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Haofei Huang
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
| | - Cuncun Zuo
- School of Chemistry and Chemical EngineeringClean Chemical Engineering Technology R&D Institute, Shandong University of Technology Zibo P. R. China
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16
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Koyama M, Kawakami T, Okazoe T, Nozaki K. Cyanide-Free One-Pot Synthesis of Methacrylic Esters from Acetone. Chemistry 2019; 25:10913-10917. [PMID: 31148251 DOI: 10.1002/chem.201901933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Indexed: 11/05/2022]
Abstract
Methacrylic esters, represented by methyl methacrylate (MMA), are widely used as commodity chemicals. Here, the one-pot synthesis of methacrylic esters from acetone, a haloform and alcohols in the presence of an organic base is described. Using DBU as the organic base for the reaction of acetone, chloroform and methanol in acetonitrile afforded MMA in 66 % yield. When the solvent was replaced by benzonitrile, the product MMA was successfully purified by distillation. Applicability of this process to various alcohols was also investigated to show ethyl, phenyl, CF3 CH2 , and n-C6 F13 CH2 CH2 esters were obtained in moderate yields. The use of bromoform instead of chloroform resulted in the improvement of the yield, for example, methyl and n-C6 F13 CH2 CH2 esters up to 81 and 70 %, respectively. The reaction with deuterated starting materials acetone-d6 and MeOH-d4 , with DBU in acetonitrile afforded deuterated MMA (MMA-d8 ) in 70 % yield.
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Affiliation(s)
- Minoru Koyama
- Department of Chemistry and Biotechnology, Graduate School of, Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Takafumi Kawakami
- Department of Chemistry and Biotechnology, Graduate School of, Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Takashi Okazoe
- Department of Chemistry and Biotechnology, Graduate School of, Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan.,Innovative Technology Research Center, AGC Inc., 1-1 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of, Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
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17
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Zhuge Y, Fan G, Lin Y, Yang L, Li F. A hybrid composite of hydroxyapatite and Ca-Al layered double hydroxide supported Au nanoparticles for highly efficient base-free aerobic oxidation of glucose. Dalton Trans 2019; 48:9161-9172. [PMID: 31147657 DOI: 10.1039/c9dt00985j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
In this work, a new hybrid composite of hydroxyapatite and Ca-Al layered double hydroxide (HAP-LDH) was successfully assembled via an in situ growth route, by which large quantities of small needle-like HAP crystals in situ grew over the lateral surface of large platelet-like CaAl-LDH particles, and applied to immobilize Au nanoparticles for base-free aerobic glucose oxidation in water to produce gluconic acid using molecular oxygen. A combination of characterization techniques and catalytic experiments revealed that the activity of supported Au catalysts was strongly associated with the composition of supports, and the hybrid HAP-LDH supported one with a Au loading amount of about 0.2 wt% delivered a high gluconic acid yield of >98% under optimal reaction conditions, along with a quite high turnover frequency value of ∼20 225 h-1. High efficiency of the as-formed Au/HAP-LDH was mainly ascribed to cooperation between favorable surface Au species (Au0/Auδ+) and abundant basic sites. Furthermore, the present catalyst also presented good structural stability, because of the novel hybrid three-dimensional nano/microstructure of the HAP-LDH composite support facilitating the stabilization of active Au species and components of the support. The present synthesis strategy of employing a hybrid composite support provides a new way to design stable and high-performance supported metal nanocatalysts for a variety of advanced heterogeneous catalytic processes.
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Affiliation(s)
- Yunfeng Zhuge
- State Key Laboratory of Chemical Resources Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
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18
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Roberts FJ, Richard C, Zemichael FW, Hii KK(M, Hellgardt K, Brennan C, Sale DA. Base-free, tunable, Au-catalyzed oxidative esterification of alcohols in continuous flow. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00085a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under continuous flow conditions, hydrogen peroxide oxidizes primary alcohols in methanol over Au/TiO2, without the need for added base.
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Affiliation(s)
| | - Christian Richard
- Department of Chemical Engineering
- Imperial College London
- London SW7 2AZ
- UK
| | | | | | - Klaus Hellgardt
- Department of Chemical Engineering
- Imperial College London
- London SW7 2AZ
- UK
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