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Zhang B, Deng D, Chen J, Li Y, Yuan M, Xiao W, Wang S, Wang X, Zhang P, Shu Y, Shi S, Chen C. Defect Engineering of High-Entropy Oxides for Superior Catalytic Oxidation Performance. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37922463 DOI: 10.1021/acsami.3c15235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
High-entropy oxides (HEOs) are crucial in various fields (power storage/conversion, electronic devices, and catalysis) owing to their adjustable structural characteristics, fabulous stability, and massive components. However, the current strategies for synthesizing HEOs suffer from low surface area and limited active sites. Herein, we present a salt-assisted strategy with remarkable universality for the preparation of HEOs with high surface area [e.g., HP-(FeCrCoNiCu)xOy: 59 m2/g, HP-(ZnMgNiCuCo)xOy: 49 m2/g, and HP-(CrMnFeNiZn)xOy: 11 m2/g], where HP means high porosity. Especially, HP-(FeCrCoNiCu)xOy with rich-oxygen vacancies promotes catalytic efficiency for hydrocarbon and alcohol oxidation owing to its hierarchical texture and massive oxygen vacancies. Furthermore, density functional theory is utilized to well illustrate the relationship of the structure and catalytic efficiency within the catalysts. This work offers realistic pathway for the large-scale application of HEOs in catalytic areas.
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Affiliation(s)
- Bingzhen Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
- School of Power and Mechanical Engineering, The Institute of Technological Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Dan Deng
- College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Jian Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Ying Li
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Mingwei Yuan
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Weiming Xiao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Shuhua Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Xiaolei Wang
- College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Pengfei Zhang
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yuan Shu
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Shunli Shi
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
| | - Chao Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemical Engineering and Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. China
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2
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Paris CB, Howe AG, Lewis RJ, Hewes D, Morgan DJ, He Q, Edwards JK. Impact of the Experimental Parameters on Catalytic Activity When Preparing Polymer Protected Bimetallic Nanoparticle Catalysts on Activated Carbon. ACS Catal 2022; 12:4440-4454. [PMID: 35465244 PMCID: PMC9016708 DOI: 10.1021/acscatal.1c05904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/16/2022] [Indexed: 01/18/2023]
Abstract
Sol immobilization is used to produce bimetallic catalysts with higher activity to monometallic counterparts for a wide range of environmental and commercial catalytic transformations. Analysis of complementary surface characterization (XPS, Boehm's titration, and zeta potential measurements) was used to elucidate alterations in the surface functionality of two activated carbon supports during acid exposure. When considered in parallel to the experimentally determined electrostatic and conformational changes of the polymer surrounding the nanoparticles, an electrostatic model is proposed describing polymer protected nanoparticle deposition with several polymer-carbon support examples described. Consideration of the electrostatic interactions ensures full deposition of the polymer protected nanoparticles and at the same time influences the structure of the bimetallic nanoparticle immobilized on the support. The normalized activity of AuPd catalysts prepared with 133 ppm H2SO4 has a much higher activity for the direct synthesis of hydrogen peroxide compared to catalysts prepared in the absence of acid. Detailed characterization by XPS indicates that the surface becomes enriched in Au in the Au-Pd samples prepared with acid, suggesting an improved dispersion of smaller bimetallic nanoparticles, rich in Au, that are known to be highly active for the direct synthesis reaction. Subsequent microscopy measurements confirmed this hypothesis, with the acid addition catalysts having a mean particle size ∼2 nm smaller than the zero acid counterparts. The addition of acid did not result in a morphology change, and random alloyed bimetallic AuPd nanoparticles were observed in catalysts prepared by sol immobilization in the presence and absence of acid. This work shows that the deposition of polymer protected AuPd nanoparticles onto activated carbon is heavily influenced by the acid addition step in the sol immobilization process. The physicochemical properties of both the polymer and the activated carbon support should be considered when designing a bimetallic nanoparticle catalyst by sol immobilization to ensure the optimum performance of the final catalyst.
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Affiliation(s)
- Charlie B. Paris
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Alexander G. Howe
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Blk E2, #05-01, 9 Engineering Drive 1, 119077 Singapore
| | - Richard James Lewis
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- Max Planck Centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Daniel Hewes
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- Max Planck Centre for Fundamental Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - David J. Morgan
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
- HarwellXPS-the EPSRC National Facility for Photoelectron Spectroscopy, Research Complex at Harwell (RCaH), Didcot, Oxon. OX11 0FA, U.K
| | - Qian He
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Blk E2, #05-01, 9 Engineering Drive 1, 119077 Singapore
| | - Jennifer K. Edwards
- Cardiff Catalysis Institute (CCI), School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
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3
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Tierney GF, Alijani S, Panchal M, Decarolis D, Gutierrez MB, Mohammed KMH, Callison J, Gibson EK, Thompson PBJ, Collier P, Dimitratos N, Corbos EC, Pelletier F, Villa A, Wells PP. Controlling the Production of Acid Catalyzed Products of Furfural Hydrogenation by Pd/TiO
2. ChemCatChem 2021. [DOI: 10.1002/cctc.202101036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- George F. Tierney
- School of Chemistry University of Southampton Southampton SO17 1BJ UK
- UK Catalysis Hub Research Complex at Harwell Rutherford Appleton Laboratory Harwell, Didcot OX11 0FA UK
| | - Shahram Alijani
- Dipartimento di Chimica Universitá degli Studi di Milano 20133 Milano Italy
| | - Monik Panchal
- UK Catalysis Hub Research Complex at Harwell Rutherford Appleton Laboratory Harwell, Didcot OX11 0FA UK
- Department of Chemistry University College London London WC1H OAJ UK
| | - Donato Decarolis
- UK Catalysis Hub Research Complex at Harwell Rutherford Appleton Laboratory Harwell, Didcot OX11 0FA UK
- Cardiff Catalysis Institute School of Chemistry Cardiff University Cardiff CF10 3AT UK
| | | | | | - June Callison
- UK Catalysis Hub Research Complex at Harwell Rutherford Appleton Laboratory Harwell, Didcot OX11 0FA UK
- Cardiff Catalysis Institute School of Chemistry Cardiff University Cardiff CF10 3AT UK
| | - Emma K. Gibson
- School of Chemistry University of Glasgow Glasgow G12 8QQ UK
| | - Paul B. J. Thompson
- BM28/XMaS UK CRG ESRF 38043 Grenoble France
- Oliver Lodge Laboratory Department of Physics University of Liverpool Liverpool L69 7ZE UK
| | - Paul Collier
- Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH UK
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale “Toso Montanari” Alma Mater Studiorum Universitá di Bologna 40136 Bologna Italy
| | - E. Crina Corbos
- Johnson Matthey Technology Centre Sonning Common, Reading RG4 9NH UK
| | | | - Alberto Villa
- Dipartimento di Chimica Universitá degli Studi di Milano 20133 Milano Italy
| | - Peter P. Wells
- School of Chemistry University of Southampton Southampton SO17 1BJ UK
- UK Catalysis Hub Research Complex at Harwell Rutherford Appleton Laboratory Harwell, Didcot OX11 0FA UK
- Diamond Light Source Harwell Science and Innovation Campus Chilton, Didcot OX11 0DE UK
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4
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Barlocco I, Capelli S, Lu X, Bellomi S, Huang X, Wang D, Prati L, Dimitratos N, Roldan A, Villa A. Disclosing the Role of Gold on Palladium – Gold Alloyed Supported Catalysts in Formic Acid Decomposition. ChemCatChem 2021. [DOI: 10.1002/cctc.202100886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ilaria Barlocco
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Sofia Capelli
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Xiuyuan Lu
- Cardiff Catalysis Institute School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
| | - Silvio Bellomi
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Xiaohui Huang
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Di Wang
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Karlsruhe Nano Micro Facility (KNMF) Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Laura Prati
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
| | - Nikolaos Dimitratos
- Dipartimento di Chimica Industriale e dei Materiali ALMA MATER STUDIORUM Università di Bologna Viale Risorgimento 4 40136 Bologna Italy
| | - Alberto Roldan
- Cardiff Catalysis Institute School of Chemistry Cardiff University Main Building, Park Place CF10 3AT Cardiff United Kingdom
| | - Alberto Villa
- Dipartimento di Chimica Università degli Studi di Milano Via Golgi 19 20133 Milano Italy
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5
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Gueci L, Ferrante F, Prestianni A, Arena F, Duca D. Benzyl alcohol to benzaldehyde oxidation on MnOx clusters: Unraveling atomistic features. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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6
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Macro- and mesoporous Cu2O/Cu3(OH)2(CO3)2 synthesized by supercritical CO2 as an efficient catalyst for alcohol oxidation. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Wani IA, Jain SK, Khan H, Kalam A, Ahmad T. Gold Nanoparticles as Efficient Catalysts in Organic Transformations. Curr Pharm Biotechnol 2021; 22:724-732. [PMID: 33602074 DOI: 10.2174/1389201022666210218195205] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/31/2021] [Accepted: 12/20/2020] [Indexed: 11/22/2022]
Abstract
This review summarizes the utilization of gold nanoparticles as efficient catalysts for a variety of chemical transformations like oxidation, hydrogenation, and coupling reactions as compared to conventional catalytic materials. This review explores the gold nanoparticles-based catalysts for the liquid phase chemo-selective organic transformations which are proving to be evergreen reactions and have importance for industrial applications. Apart from organic transformation reactions, gold nanoparticles have been found to be applicable in removing the atmospheric contaminants and improving the efficiency of the fuel cells by removing the impurities of carbon monoxide.
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Affiliation(s)
- Irshad A Wani
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Sapan K Jain
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Huma Khan
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Tokeer Ahmad
- Department of Chemistry, Nanochemistry Laboratory, Jamia Millia Islamia, New Delhi 110025, India
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8
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Bartley JK, Dimitratos N, Edwards JK, Kiely CJ, Taylor SH. A Career in Catalysis: Graham J. Hutchings. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan K. Bartley
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Nikolaos Dimitratos
- Department of Industrial Chemistry, Alma Mater Studiorum-University of Bologna, Viale Risorgimento, 40136, Bologna, Italy
| | - Jennifer K. Edwards
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Christopher J. Kiely
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Stuart H. Taylor
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
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9
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10
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Feng D, Dong Y, Zhang L, Ge X, Zhang W, Dai S, Qiao Z. Holey Lamellar High‐Entropy Oxide as an Ultra‐High‐Activity Heterogeneous Catalyst for Solvent‐free Aerobic Oxidation of Benzyl Alcohol. Angew Chem Int Ed Engl 2020; 59:19503-19509. [DOI: 10.1002/anie.202004892] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/08/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Danyang Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Yangbo Dong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Liangliang Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Xin Ge
- Electron Microscopy Center Jilin University Changchun Jilin 130012 China
| | - Wei Zhang
- Electron Microscopy Center Jilin University Changchun Jilin 130012 China
| | - Sheng Dai
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Zhen‐An Qiao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
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11
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Feng D, Dong Y, Zhang L, Ge X, Zhang W, Dai S, Qiao Z. Holey Lamellar High‐Entropy Oxide as an Ultra‐High‐Activity Heterogeneous Catalyst for Solvent‐free Aerobic Oxidation of Benzyl Alcohol. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004892] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Danyang Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Yangbo Dong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Liangliang Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
| | - Xin Ge
- Electron Microscopy Center Jilin University Changchun Jilin 130012 China
| | - Wei Zhang
- Electron Microscopy Center Jilin University Changchun Jilin 130012 China
| | - Sheng Dai
- Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA
| | - Zhen‐An Qiao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun Jilin 130012 China
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12
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Khawaji M, Chadwick D. Selective oxidation using Au-Pd catalysts: Role of the support in the stabilization of colloidal Au-Pd NPs. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.08.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Hydrogen Peroxide as a Green Oxidant for the Selective Catalytic Oxidation of Benzylic and Heterocyclic Alcohols in Different Media: An Overview. CHEMISTRY 2020. [DOI: 10.3390/chemistry2010010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Among a plethora of known and established oxidant in organic chemistry, hydrogen peroxide stands in a special position. It is commercially and inexpensively available, highly effective, selective, and more importantly it is compatible with current environmental concerns, dictated by principles of green chemistry. Several chemicals or their intermediates that are important in our daily life such as pharmaceuticals, flavors, fragrances, etc. are products of oxidation of alcohols. In this review, we introduce hydrogen peroxide as an effective, selective, green and privileged oxidant for the catalyzed oxidation of primary and secondary benzylic and heterocyclic alcohols to corresponding carbonyl compounds in different media such as aqueous media, under solvent-free conditions, various organic solvent, and dual-phase system.
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14
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Preformed Pd-Based Nanoparticles for the Liquid Phase Decomposition of Formic Acid: Effect of Stabiliser, Support and Au–Pd Ratio. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10051752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Hydrogen is one of the most promising energy carriers for the production of electricity based on fuel cell hydrogen technology. Recently, hydrogen storage chemicals, such as formic acid, have been proposed to be part of the long-term solution towards hydrogen economy for the future of our planet. Herein we report the synthesis of preformed Pd nanoparticles using colloidal methodology varying a range of specific experimental parameters, such as the amount of the stabiliser and reducing agent, nature of support and Pd loading of the support. The aforementioned parameters have shown to affect mean Pd particle size, Pd oxidation, atomic content of Pd on the surface as well as on the catalytic performance towards formic acid decomposition. Reusability studies were carried out using the most active monometallic Pd material with a small loss of activity after five uses. The catalytic performance based on the Au–Pd atomic ratio was evaluated and the optimum catalytic performance was found to be with the Au/Pd atomic ratio of 1/3, indicating that the presence of a small amount of Pd is essential to promote significantly Au activity for the liquid phase decomposition of formic acid. Thorough characterisation has been carried out by means of XPS, SEM-EDX, TEM and BET. The observed catalytic performance is discussed in terms of the structure/morphology and composition of the supported Pd and Au–Pd nanoparticles.
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15
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Hammond-Pereira E, Bryant K, Graham TR, Yang C, Mergelsberg S, Wu D, Saunders SR. Mesoporous silica-encapsulated gold core–shell nanoparticles for active solvent-free benzyl alcohol oxidation. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00198h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silica-encapsulated gold core@shell nanoparticles (Au@SiO2 CSNPs) were synthesized via a tunable bottom-up procedure to catalyze the aerobic oxidation of benzyl alcohol.
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Affiliation(s)
- Ellis Hammond-Pereira
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
| | - Kristin Bryant
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
| | - Trent R. Graham
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Pacific Northwest National Laboratory
| | - Chen Yang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Alexandra Navrotsky Institute for Experimental Thermodynamics
| | | | - Di Wu
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Alexandra Navrotsky Institute for Experimental Thermodynamics
| | - Steven R. Saunders
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering
- Washington State University
- Pullman
- USA
- Department of Chemistry
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16
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Gong X, Lewis RJ, Zhou S, Morgan DJ, Davies TE, Liu X, Kiely CJ, Zong B, Hutchings GJ. Enhanced catalyst selectivity in the direct synthesis of H 2O 2 through Pt incorporation into TiO 2 supported AuPd catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01079k] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The introduction of low levels of Pt dopant into AuPd nanoparticles supported on TiO2 significantly enhances their catalytic performance for the direct synthesis of H2O2.
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Affiliation(s)
- Xiaoxiao Gong
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Richard J. Lewis
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Song Zhou
- SynCat@Beijing
- Synfuels China Technology Co. Ltd
- Beijing
- P.R. China
- State Key Laboratory of Coal Convers
| | - David J. Morgan
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Thomas E. Davies
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Xi Liu
- SynCat@Beijing
- Synfuels China Technology Co. Ltd
- Beijing
- P.R. China
- School of Chemistry and Chemical Engineering
| | | | - Baoning Zong
- Laboratory of Catalytic Materials and Chemical Engineering
- Research Institute of Petroleum Processing
- SINOPEC
- Beijing
- P.R. China
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17
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Li X, Feng J, Sun J, Wang Z, Zhao W. Solvent-Free Catalytic Oxidation of Benzyl Alcohol over Au-Pd Bimetal Deposited on TiO 2: Comparison of Rutile, Brookite, and Anatase. NANOSCALE RESEARCH LETTERS 2019; 14:394. [PMID: 31883026 PMCID: PMC6934638 DOI: 10.1186/s11671-019-3211-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
TiO2 (P25)-supported Au-Pd bimetal nanoparticles displayed excellent performance in the solvent-free benzyl alcohol catalytic oxidation. However, little research attention has been paid to investigate the effects of TiO2 form on the catalytic activity of Au-Pd/TiO2. In the present research, rutile, brookite, and anatase TiO2 were successfully synthesized and subsequently applied as the carrier to load Au-Pd nanoparticles by the deposition-precipitation method. The experimental results indicated that the benzyl alcohol conversion employing the rutile TiO2-supported Au-Pd catalyst is higher than the conversion of anatase and brookite TiO2-loaded Au-Pd catalysts. However, the Au-Pd/TiO2-rutile displayed the lowest and highest selectivity toward benzaldehyde and toluene, respectively. ICP-AES, XRD, XPS, and TEM were conducted to characterize these catalysts. The corresponding experimental results revealed that the excellent performance of Au-Pd/TiO2-rutile catalyst was attributed to both the smaller Au-Pd nanoparticle size distribution and the higher concentrations of Oα and Pd2+ species on the catalyst surface. In the recycle experiments, the Au-Pd/TiO2-rutile catalyst displayed lower reaction stability compared with the Au-Pd/TiO2-anatase and Au-Pd/TiO2-brookite, which might be due to the coverage of larger amount of aldehyde products on the surface.
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Affiliation(s)
- Xiaoliang Li
- State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, People's Republic of China.
| | - Jiangjiang Feng
- State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Jia Sun
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK
| | - Zhe Wang
- State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, People's Republic of China
| | - Wei Zhao
- State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, People's Republic of China.
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18
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Pd Nanoparticles Supported on Amine-Functionalized MgAl Layered Double Hydroxides for Solvent-Free Aerobic Oxidation of Benzyl Alcohol. Catalysts 2019. [DOI: 10.3390/catal9121038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pd nanoparticles (NPs) supported on amine-functionalized layered double hydroxides (LDHs) (Pd/NH2-LDH-NS) were successfully obtained by implanting aminopropyltriethoxysilane (APTS) on MgAl LDH nanosheets (LDH-NS), followed by impregnating [Pd(NH3)4]Cl2 and reduction with NaBH4. The physicochemical characteristics of the obtained Pd/NH2-LDH-NS were characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR),, N2 adsorption–desorption, inductive coupled plasma (ICP), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy(XPS), and their catalytic performance was tested in the selective oxidation of benzyl alcohol with molecular oxygen under solvent-free and base-free conditions. The results showed that the implanted –NH2 groups can promote the dispersion of the supported Pd NPs via complexation of the implanted –NH2 groups to Pd NPs, and they can increase the surface basicity of the catalysts, thus enhancing the catalytic activity and selectivity to benzylaldehyde. Pd/NH2-LDH-NS exhibited enhanced catalytic activity (31.6%) and selectivity (>98%) compared to the corresponding Pd/LDH-NS, Pd/LDH, Pd/SiO2, and Pd/Al2O3. Moreover, Pd/NH2-LDH-NS was remarkably stable and could be reused at least four times without a significant loss in activity and selectivity.
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Khawaji M, Chadwick D. Selective catalytic oxidation over Au-Pd/titanate nanotubes and the influence of the catalyst preparation method on the activity. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.11.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Silva TAG, Ferraz CP, Gonçalves RV, Teixeira‐Neto E, Wojcieszak R, Rossi LM. Restructuring of Gold‐Palladium Alloyed Nanoparticles: A Step towards More Active Catalysts for Oxidation of Alcohols. ChemCatChem 2019. [DOI: 10.1002/cctc.201900553] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tiago A. G. Silva
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
| | - Camila P. Ferraz
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
| | - Renato V. Gonçalves
- Instituto de Física de São CarlosUniversidade de São Paulo CP 369 13560-970 São Carlos São Paulo Brazil
| | - Erico Teixeira‐Neto
- Laboratório de Microscopia EletrônicaLNNano-CNPEM C.P. 6192 13083-970 Campinas, SP Brazil
| | - Robert Wojcieszak
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Liane M. Rossi
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof. Lineu Prestes 748 São Paulo 05508-000, SP Brazil
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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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Cattaneo S, Althahban S, Freakley SJ, Sankar M, Davies T, He Q, Dimitratos N, Kiely CJ, Hutchings GJ. Synthesis of highly uniform and composition-controlled gold-palladium supported nanoparticles in continuous flow. NANOSCALE 2019; 11:8247-8259. [PMID: 30976773 DOI: 10.1039/c8nr09917k] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The synthesis of supported bimetallic nanoparticles with well-defined size and compositional parameters has long been a challenge. Although batch colloidal methods are commonly used to pre-form metal nanoparticles with the desired size-range in solution, inhomogeneous mixing of the reactant solutions often leads to variations in size, structure and composition from batch-to-batch and even particle-to-particle. Here we describe a millifluidic approach for the production of oxide supported monometallic Au and bimetallic AuPd nanoparticles in a continuous fashion. This optimised method enables the production of nanoparticles with smaller mean sizes, tighter particle size distributions and a more uniform particle-to-particle chemical composition as compared to the conventional batch procedure. In addition, we describe a facile procedure to prepare bimetallic Au@Pd core-shell nanoparticles in continuous flow starting from solutions of the metal precursors. Moreover, the relative ease of scalability of this technique makes the proposed methodology appealing not only for small-scale laboratory purposes, but also for the industrial-scale production of supported metal nanoparticles.
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Affiliation(s)
- Stefano Cattaneo
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, UK.
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23
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Xu J, Wang Y, Cao Y, He Z, Zhao L, Etim UJ, Bai P, Yan Z, Wu P. What is the effect of Sn and Mo oxides on gold catalysts for selective oxidation of benzyl alcohol? NEW J CHEM 2019. [DOI: 10.1039/c8nj05642k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of SnOx and MoOx promoted gold nanoparticle catalysts were used for the aerobic oxidation of benzyl alcohol.
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Affiliation(s)
- Jing Xu
- State Key Laboratory of Heavy Oil Processing
- School of Materials Science and Engineering
- Institute of Advanced Materials
- China University of Petroleum (East China)
- Qingdao
| | - Yue Wang
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Yunxiang Cao
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Zhengke He
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Lianming Zhao
- State Key Laboratory of Heavy Oil Processing
- School of Materials Science and Engineering
- Institute of Advanced Materials
- China University of Petroleum (East China)
- Qingdao
| | - Ubong Jerome Etim
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Peng Bai
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Zifeng Yan
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
| | - Pingping Wu
- State Key Laboratory of Heavy Oil Processing
- Key Laboratory of Catalysis
- College of Chemical Engineering
- China University of Petroleum (East China)
- Qingdao 266580
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24
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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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25
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Tao L, Yan TH, Li W, Zhao Y, Zhang Q, Liu YM, Wright MM, Li ZH, He HY, Cao Y. Toward an Integrated Conversion of 5-Hydroxymethylfurfural and Ethylene for the Production of Renewable p-Xylene. Chem 2018. [DOI: 10.1016/j.chempr.2018.07.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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26
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Aerobic oxidative esterification of primary alcohols over Pd-Au bimetallic catalysts supported on mesoporous silica nanoparticles. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.01.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Gurrala L, Nagpure AS, Gurav HR, Chilukuri S. Spinel-Type Mixed Oxides for Stable and Selective Partial Oxidation of Benzyl Alcohol. ChemistrySelect 2018. [DOI: 10.1002/slct.201800321] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lakshmiprasad Gurrala
- Catalysis and Inorganic Chemistry Division; CSIR- National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Atul S. Nagpure
- Catalysis and Inorganic Chemistry Division; CSIR- National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Department of Chemistry; Rashtrapita Mahatma Gandhi Arts & Science College; Chandrapur- 441205 India
| | - Hanmant R. Gurav
- Catalysis and Inorganic Chemistry Division; CSIR- National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Reliance Technology Group; P.O. Petrochemicals; Vadodara- 391346 India
| | - Satyanarayana Chilukuri
- Catalysis and Inorganic Chemistry Division; CSIR- National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
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28
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Khawaji M, Chadwick D. Au–Pd NPs immobilised on nanostructured ceria and titania: impact of support morphology on the catalytic activity for selective oxidation. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02329d] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Au–Pd colloidal NPs immobilised on ceria nanorods are highly active catalysts for selective oxidation.
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Affiliation(s)
- Motaz Khawaji
- Department of Chemical Engineering
- Imperial College London
- London SW7 2AZ
- UK
| | - David Chadwick
- Department of Chemical Engineering
- Imperial College London
- London SW7 2AZ
- UK
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29
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Albilali R, Douthwaite M, He Q, Taylor SH. The selective hydrogenation of furfural over supported palladium nanoparticle catalysts prepared by sol-immobilisation: effect of catalyst support and reaction conditions. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02110k] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Pd-TiO2 nanoparticles prepared by sol-immobilisation are very active for selective hydrogenation of furfural under mild conditions, and addition of Pt enhances performance to achieve a 95% yield of tetrahydrofurfuryl alcohol.
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Affiliation(s)
- Reem Albilali
- Department of Chemistry
- College of Science
- Imam Abdulrahman Bin Faisal University
- Dammam 31441
- Saudi Arabia
| | - Mark Douthwaite
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Qian He
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Stuart H. Taylor
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
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30
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Cattaneo S, Freakley SJ, Morgan DJ, Sankar M, Dimitratos N, Hutchings GJ. Cinnamaldehyde hydrogenation using Au–Pd catalysts prepared by sol immobilisation. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02556d] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the catalytic performance of Au–Pd nanoparticles prepared via a sol immobilisation technique for the catalytic hydrogenation of cinnamaldehyde under mild reaction conditions.
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Affiliation(s)
- Stefano Cattaneo
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - Simon J. Freakley
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
| | - David J. Morgan
- Cardiff Catalysis Institute
- School of Chemistry
- Cardiff University
- Cardiff
- UK
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31
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Khawaji M, Chadwick D. Au-Pd Bimetallic Nanoparticles Immobilised on Titanate Nanotubes: A Highly Active Catalyst for Selective Oxidation. ChemCatChem 2017. [DOI: 10.1002/cctc.201700851] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Motaz Khawaji
- Department of Chemical Engineering; Imperial College London; South Kensington London SW7 2AZ UK
| | - David Chadwick
- Department of Chemical Engineering; Imperial College London; South Kensington London SW7 2AZ UK
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32
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Selective suppression of toluene formation in solvent-free benzyl alcohol oxidation using supported Pd-Ni bimetallic nanoparticles. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62904-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Lin Y, Wu KHT, Yu L, Heumann S, Su DS. Efficient and Highly Selective Solvent-Free Oxidation of Primary Alcohols to Aldehydes Using Bucky Nanodiamond. CHEMSUSCHEM 2017; 10:3497-3505. [PMID: 28665485 DOI: 10.1002/cssc.201700968] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Indexed: 06/07/2023]
Abstract
Selective oxidation of alcohols to aldehydes is widely applicable to the synthesis of various green chemicals. The poor chemoselectivity for complicated primary aldehydes over state-of-the-art metal-free or metal-based catalysts represents a major obstacle for industrial application. Bucky nanodiamond is a potential green catalyst that exhibits excellent chemoselectivity and cycling stability for the selective oxidation of primary alcohols in diverse structures (22 examples, including aromatic, substituted aromatic, unsaturated, heterocyclic, and linear chain alcohols) to their corresponding aldehydes. The results are comparable to reported transition-metal catalysts including conventional Pt/C and Ru/C catalysts for certain substrates under solvent-free conditions. The possible activation process of the oxidant and substrates by the surface oxygen groups and defect species are revealed with model catalysts, ex situ electrochemical measurements, and ex situ attenuated total reflectance. The zigzag edges of sp2 carbon planes are shown to play a key role in these reactions.
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Affiliation(s)
- Yangming Lin
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230001, P.R. China
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, Mülheim an der Ruhr, 45470, Germany
| | - Kuang-Hsu Tim Wu
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - Linhui Yu
- Research Institute of Photocatalysis, Fuzhou University, Fuzhou, 350002, P.R. China
| | - Saskia Heumann
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, Mülheim an der Ruhr, 45470, Germany
| | - Dang Sheng Su
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
- Department of Inorganic Chemistry, Fritz Haber Institute of the Max, Planck Society, Faradayweg 4-6, Berlin, 14195, Germany
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34
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Xin JY, Fan HC, Ji SF, Wang Y, Xia CG. Methanobactin-mediated synthesis of bimetallic Au-Pd/Al 2O 3 toward an efficient catalyst for glucose oxidation. IET Nanobiotechnol 2017; 11:512-516. [PMID: 28745282 PMCID: PMC8676664 DOI: 10.1049/iet-nbt.2016.0168] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/07/2016] [Accepted: 11/22/2016] [Indexed: 11/19/2022] Open
Abstract
A green bioreductive approach with methanobactin was adopted to fabricate bimetallic Au-Pd/Al2O3 catalysts for solvent-free oxidation of glucose to gluconic acid with H2O2 at atmospheric pressure. The catalyst was characterised by diffuse reflectance UV-vis spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction techniques to understand synergistic interactions between Au and Pd. Effects of Au to Pd molar ratio on the catalytic activity of Au-Pd/Al2O3 were investigated. The Au-Pd/Al2O3 catalyst with Au/Pd molar ratio of 0.8:0.2 exhibited excellent catalytic performance. With the catalyst, the oxidation activities of glucose to gluconic acid 2856 mmol min-1 g-1 and selectivity 99.6% were attained at 323 K with H2O2. The results indicated the activity and selectivity was affected by the ratio of Au/Pd on the Al2O3. The formation of Au0.8Pd0.2/Al2O3 was favourable for the catalytic reaction.
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Affiliation(s)
- Jia-Ying Xin
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China.
| | - Hong-Chen Fan
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin 150076, People's Republic of China
| | - Sheng-Fu Ji
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
| | - Yan Wang
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin 150076, People's Republic of China
| | - Chun-Gu Xia
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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35
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Jamwal B, Bhardwaj M, Paul S. Organic/Inorganic Hybrid Stabilized Au-Pd Bimetallic Nanoalloy as Highly Active and Sustainable Catalytic System for Enhanced Performance in Hydrogenation Reactions. ChemistrySelect 2017. [DOI: 10.1002/slct.201700485] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Babita Jamwal
- Department of Chemistry; University of Jammu; Jammu Tawi- 180006 India
| | - Madhvi Bhardwaj
- Department of Chemistry; University of Jammu; Jammu Tawi- 180006 India
| | - Satya Paul
- Department of Chemistry; University of Jammu; Jammu Tawi- 180006 India
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36
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Abis L, Freakley SJ, Dodekatos G, Morgan DJ, Sankar M, Dimitratos N, He Q, Kiely CJ, Hutchings GJ. Highly Active Gold and Gold–Palladium Catalysts Prepared by Colloidal Methods in the Absence of Polymer Stabilizers. ChemCatChem 2017. [DOI: 10.1002/cctc.201700483] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Laura Abis
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
| | - Simon J. Freakley
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
| | - Georgios Dodekatos
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 D-45470 Mülheim an der Ruhr Germany
| | - David J. Morgan
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
| | | | - Nikolaos Dimitratos
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
| | - Qian He
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
| | - Christopher J. Kiely
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
- Department of Materials Science and Engineering Lehigh University 5 East Packer Avenue Bethlehem PA 18015-3195 USA
| | - Graham J. Hutchings
- Cardiff Catalysis Institute Cardiff University Main Building, Park Place Cardiff CF103AT UK
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37
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Cao E, Brett G, Miedziak PJ, Douthwaite JM, Barrass S, McMillan PF, Hutchings GJ, Gavriilidis A. A micropacked-bed multi-reactor system with in situ raman analysis for catalyst evaluation. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Titania-supported gold-based nanoparticles efficiently catalyze the hydrodeoxygenation of guaiacol. J Catal 2016. [DOI: 10.1016/j.jcat.2016.09.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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Piccolo L, Li ZY, Demiroglu I, Moyon F, Konuspayeva Z, Berhault G, Afanasiev P, Lefebvre W, Yuan J, Johnston RL. Understanding and controlling the structure and segregation behaviour of AuRh nanocatalysts. Sci Rep 2016; 6:35226. [PMID: 27739480 PMCID: PMC5064371 DOI: 10.1038/srep35226] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 09/23/2016] [Indexed: 12/19/2022] Open
Abstract
Heterogeneous catalysis, which is widely used in the chemical industry, makes a great use of supported late-transition-metal nanoparticles, and bimetallic catalysts often show superior catalytic performances as compared to their single metal counterparts. In order to optimize catalyst efficiency and discover new active combinations, an atomic-level understanding and control of the catalyst structure is desirable. In this work, the structure of catalytically active AuRh bimetallic nanoparticles prepared by colloidal methods and immobilized on rutile titania nanorods was investigated using aberration-corrected scanning transmission electron microscopy. Depending on the applied post-treatment, different types of segregation behaviours were evidenced, ranging from Rh core – Au shell to Janus via Rh ball – Au cup configuration. The stability of these structures was predicted by performing density-functional-theory calculations on unsupported and titania-supported Au-Rh clusters; it can be rationalized from the lower surface and cohesion energies of Au with respect to Rh, and the preferential binding of Rh with the titania support. The bulk-immiscible AuRh/TiO2 system can serve as a model to understand similar supported nanoalloy systems and their synergistic behaviour in catalysis.
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Affiliation(s)
- Laurent Piccolo
- Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), UMR 5256 CNRS &Université Claude Bernard - Lyon 1, 2 avenue Albert Einstein, F-69626 Villeurbanne, France
| | - Z Y Li
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Ilker Demiroglu
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Florian Moyon
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, Groupe de Physique des Matériaux, 76000, Rouen, France
| | - Zere Konuspayeva
- Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), UMR 5256 CNRS &Université Claude Bernard - Lyon 1, 2 avenue Albert Einstein, F-69626 Villeurbanne, France
| | - Gilles Berhault
- Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), UMR 5256 CNRS &Université Claude Bernard - Lyon 1, 2 avenue Albert Einstein, F-69626 Villeurbanne, France
| | - Pavel Afanasiev
- Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), UMR 5256 CNRS &Université Claude Bernard - Lyon 1, 2 avenue Albert Einstein, F-69626 Villeurbanne, France
| | - Williams Lefebvre
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, Groupe de Physique des Matériaux, 76000, Rouen, France
| | - Jun Yuan
- Department of Physics, University of York, York, YO10 5DD, United Kingdom
| | - Roy L Johnston
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, United Kingdom
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Carter JH, Althahban S, Nowicka E, Freakley SJ, Morgan DJ, Shah PM, Golunski S, Kiely CJ, Hutchings GJ. Synergy and Anti-Synergy between Palladium and Gold in Nanoparticles Dispersed on a Reducible Support. ACS Catal 2016; 6:6623-6633. [PMID: 27990317 PMCID: PMC5154324 DOI: 10.1021/acscatal.6b01275] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 08/03/2016] [Indexed: 11/28/2022]
Abstract
Highly active and stable bimetallic Au-Pd catalysts have been extensively studied for several liquid-phase oxidation reactions in recent years, but there are far fewer reports on the use of these catalysts for low-temperature gas-phase reactions. Here we initially established the presence of a synergistic effect in a range of bimetallic Au-Pd/CeZrO4 catalysts, by measuring their activity for selective oxidation of benzyl alcohol. The catalysts were then evaluated for low-temperature WGS, CO oxidation, and formic acid decomposition, all of which are believed to be mechanistically related. A strong anti-synergy between Au and Pd was observed for these reactions, whereby the introduction of Pd to a monometallic Au catalyst resulted in a significant decrease in catalytic activity. Furthermore, monometallic Pd was more active than Pd-rich bimetallic catalysts. The nature of the anti-synergy was probed by several ex situ techniques, which all indicated a growth in metal nanoparticle size with Pd addition. However, the most definitive information was provided by in situ CO-DRIFTS, in which CO adsorption associated with interfacial sites was found to vary with the molar ratio of the metals and could be correlated with the catalytic activity of each reaction. As a similar correlation was observed between activity and the presence of Au0* (as detected by XPS), it is proposed that peripheral Au0* species form part of the active centers in the most active catalysts for the three gas-phase reactions. In contrast, the active sites for the selective oxidation of benzyl alcohol are generally thought to be electronically modified gold atoms at the surface of the nanoparticles.
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Affiliation(s)
- James H. Carter
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Sultan Althahban
- Department of Materials Science and Engineering, Lehigh University, 5
East Packer Avenue, Bethlehem, Pennsylvania 18015-3195, United States
| | - Ewa Nowicka
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Simon J. Freakley
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - David J. Morgan
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Parag M. Shah
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Stanislaw Golunski
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Christopher J. Kiely
- 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, Main Building, Park Place, Cardiff CF10 3AT, U.K
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41
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Solvent-free aerobic oxidation of 1-octene using graphite-supported gold–palladium nanoparticle catalysts. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1031-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Zheng J, Qu J, Lin H, Zhang Q, Yuan X, Yang Y, Yuan Y. Surface Composition Control of the Binary Au–Ag Catalyst for Enhanced Oxidant-Free Dehydrogenation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01348] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianwei Zheng
- Department
of Chemistry, College of Chemistry and Chemical Engineering, State
Key Laboratory of Physical Chemistry for Solid Surfaces, iChEM, National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, Xiamen University, Xiamen 361005, People’s Republic of China
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Jin Qu
- Centre
for Computational Chemistry and Research Institute of Industrial Catalysis, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, People’s Republic of China
| | - Haiqiang Lin
- Department
of Chemistry, College of Chemistry and Chemical Engineering, State
Key Laboratory of Physical Chemistry for Solid Surfaces, iChEM, National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, Xiamen University, Xiamen 361005, People’s Republic of China
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Qian Zhang
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Xiang Yuan
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Yanhui Yang
- School
of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Youzhu Yuan
- Department
of Chemistry, College of Chemistry and Chemical Engineering, State
Key Laboratory of Physical Chemistry for Solid Surfaces, iChEM, National
Engineering Laboratory for Green Chemical Productions of Alcohols,
Ethers and Esters, Xiamen University, Xiamen 361005, People’s Republic of China
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43
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Jin X, Taniguchi K, Yamaguchi K, Mizuno N. Au-Pd alloy nanoparticles supported on layered double hydroxide for heterogeneously catalyzed aerobic oxidative dehydrogenation of cyclohexanols and cyclohexanones to phenols. Chem Sci 2016; 7:5371-5383. [PMID: 30155190 PMCID: PMC6020756 DOI: 10.1039/c6sc00874g] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 05/06/2016] [Indexed: 01/07/2023] Open
Abstract
Phenol, an important industrial chemical, is widely produced using the well-developed cumene process. However, demand for the development of a novel alternative method for synthesizing phenol from benzene has been increasing. Herein, we report a novel system for the synthesis of phenols through aerobic oxidative dehydrogenation of cyclohexanols and cyclohexanones, including ketone-alcohol (KA) oil, catalyzed by Mg-Al-layered double hydroxide (LDH)-supported Au-Pd alloy nanoparticles (Au-Pd/LDH). Alloying of Au and Pd and basicity of LDH are key factors in achieving the present transformation. Although monometallic Au/LDH, Pd/LDH, and their physical mixture showed almost no catalytic activity, Au-Pd/LDH exhibited markedly high catalytic activity for the dehydrogenative phenol production. Mechanistic studies showed that β-H elimination from Pd-enolate species is accelerated by Au species, likely via electronic ligand effects. Moreover, the effect of supports was critical; despite the high catalytic performance of Au-Pd/LDH, Au-Pd bimetallic nanoparticles supported on Al2O3, TiO2, MgO, and CeO2 were ineffective. Thus, the basicity of LDH plays a deterministic role in the present dehydrogenation possibly through its assistance in the deprotonation steps. The synthetic scope of the Au-Pd/LDH-catalyzed system was very broad; various substituted cyclohexanols and cyclohexanones were efficiently converted into the corresponding phenols, and N-substituted anilines were synthesized from cyclohexanones and amines. In addition, the observed catalysis was truly heterogeneous, and Au-Pd/LDH could be reused without substantial loss of its high performance. The present transformation is scalable, utilizes O2 in air as the terminal oxidant, and generates water as the only by-product, highlighting the potential practical utility and environmentally benign nature of the present transformation. Dehydrogenative aromatization of cyclohexanols proceeds through (1) oxidation of cyclohexanols to cyclohexanones; (2) dehydrogenation of cyclohexanones to cyclohexenones; and (3) disproportionation of cyclohexenones to afford the desired phenols. In the present Au-Pd/LDH-catalyzed transformation, the oxidation of the Pd-H species is included in the rate-determining step.
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Affiliation(s)
- Xiongjie Jin
- Department of Applied Chemistry , School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Kento Taniguchi
- Department of Applied Chemistry , School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Kazuya Yamaguchi
- Department of Applied Chemistry , School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan .
| | - Noritaka Mizuno
- Department of Applied Chemistry , School of Engineering , The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan .
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44
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45
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Palladium nanoparticles supported on CNT functionalized by rare-earth oxides for solvent-free aerobic oxidation of benzyl alcohol. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.07.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Surface functionalized TiO2 supported Pd catalysts for solvent-free selective oxidation of benzyl alcohol. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Wang J, Kondrat SA, Wang Y, Brett GL, Giles C, Bartley JK, Lu L, Liu Q, Kiely CJ, Hutchings GJ. Au–Pd Nanoparticles Dispersed on Composite Titania/Graphene Oxide-Supports as a Highly Active Oxidation Catalyst. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00480] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiacheng Wang
- State
Key Laboratory of High Performance Ceramics and Superfine Microstructure,
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Simon A. Kondrat
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Yingyu Wang
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Gemma L. Brett
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Cicely Giles
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Jonathan K. Bartley
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, U.K
| | - Li Lu
- Department
of Materials Science and Engineering, Lehigh University, 5 East Packer
Avenue, Bethlehem, Pennsylvania 18015-3195, United States
| | - Qian Liu
- State
Key Laboratory of High Performance Ceramics and Superfine Microstructure,
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Christopher J. Kiely
- 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, Main Building, Park Place, Cardiff, CF10 3AT, U.K
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48
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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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49
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Miao MY, Feng JT, Jin Q, He YF, Liu YN, Du YY, Zhang N, Li DQ. Hybrid Ni–Al layered double hydroxide/graphene composite supported gold nanoparticles for aerobic selective oxidation of benzyl alcohol. RSC Adv 2015. [DOI: 10.1039/c5ra05436b] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A NiAl-LDH/RGO composite-supported Au catalyst was synthesized and exhibited high activity and stability in the selective oxidation of benzyl alcohol.
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Affiliation(s)
- M. Y. Miao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - J. T. Feng
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Q. Jin
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Y. F. He
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Y. N. Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Y. Y. Du
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - N. Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - D. Q. Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing
- China
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50
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Konuspayeva Z, Afanasiev P, Nguyen TS, Di Felice L, Morfin F, Nguyen NT, Nelayah J, Ricolleau C, Li ZY, Yuan J, Berhault G, Piccolo L. Au–Rh and Au–Pd nanocatalysts supported on rutile titania nanorods: structure and chemical stability. Phys Chem Chem Phys 2015; 17:28112-20. [DOI: 10.1039/c5cp00249d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Au–Rh and Au–Pd nanoalloys synthesized by colloidal methods and immobilized on rutile titania nanorods are more stable than their monometallic counterparts for tetralin hydrogenation in the presence of sulfur.
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