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Uzunidis G, Behrens S. Pd/Ag Nanoparticles Prepared in Ionic Liquids as Model Catalysts for the Hydrogenation of Diphenylacetylene. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202100163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Georgios Uzunidis
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Silke Behrens
- Karlsruhe Institute of Technology Institute of Catalysis Research and Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
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2
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Dietrich C, Chen S, Uzunidis G, Hähsler M, Träutlein Y, Behrens S. Bimetallic Pd/Sn-based Nanoparticles and their Catalytic Properties in the Semihydrogenation of Diphenylacetylene. ChemistryOpen 2021; 10:296-304. [PMID: 33751864 PMCID: PMC7944562 DOI: 10.1002/open.202000298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 02/09/2021] [Indexed: 11/23/2022] Open
Abstract
Multimetallic nanoparticles often enhance the catalytic performance of their monometallic counterparts by increasing reaction rates, catalyst selectivity, and/or stability. A prerequisite for understanding structure- and composition-associated properties, however, is the careful design of multimetallic nanoparticles with various structures and compositions. Here, bimetallic Pd/Sn-based nanoparticles are prepared with a tunable composition and structure exploiting ionic liquids (ILs) as reaction medium (i. e., methyltrioctylammonium bis(trifluoromethylsulfonyl)imide). The nanoparticles are obtained in a one-pot synthetic procedure by reducing the metal salt precursors with triethylborohydride in the IL. The results show that the reaction parameters, in particular the nature and ratio of the Pd2+ /Sn2+ precursors as well as the reaction temperature, influence NP formation and composition. X-ray diffraction with Rietveld analysis and transmission electron microscopy are employed to determine NP size and phase composition. Under optimized reaction conditions Pd2 Sn or PdSn nanocrystals are formed as single-phase products after introducing an additional annealing step at 200 °C. Nanocrystals with intermetallic composition reveal enhanced catalytic properties in the semihydrogenation of diphenylacetylene which was used as a model reaction.
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Affiliation(s)
- Christine Dietrich
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Si Chen
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Georgios Uzunidis
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Martin Hähsler
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Yannick Träutlein
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
| | - Silke Behrens
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 1 D76344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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Platinum Island-on-Copper–Nickel Alloy Nanoparticle/Carbon Trimetallic Nanocatalyst for Selective Hydrogenation of Cinnamaldehyde. Catal Letters 2020. [DOI: 10.1007/s10562-020-03295-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Wang S, Doronkin DE, Hähsler M, Huang X, Wang D, Grunwaldt J, Behrens S. Palladium-Based Bimetallic Nanocrystal Catalysts for the Direct Synthesis of Hydrogen Peroxide. CHEMSUSCHEM 2020; 13:3243-3251. [PMID: 32233108 PMCID: PMC7318153 DOI: 10.1002/cssc.202000407] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/27/2020] [Indexed: 05/20/2023]
Abstract
The direct synthesis of H2 O2 from H2 and O2 is a strongly desired reaction for green processes and a promising alternative to the commercialized anthraquinone process. The design of efficient catalysts with high activity and H2 O2 selectivity is highly desirable and yet challenging. Metal dopants enhance the performance of the active phase by increasing reaction rates, stability, and/or selectivity. The identification of efficient dopants relies mostly on catalysts prepared with a random and non-uniform deposition of active and promoter phases. To study the promotional effects of metal doping on Pd catalysts, we employ colloidal, bimetallic nanocrystals (NCs) to produce catalysts in which the active and doping metals are colocalized to a fine extent. In the absence of any acid and halide promotors, PdSn and PdGa NCs supported on acid-pretreated TiO2 (PdSn/s-TiO2 , PdGa/s-TiO2 ) were highly efficient and outperformed the monometallic Pd catalyst (Pd/s-TiO2 ), whereas in the presence of an acid promotor, the overall H2 O2 productivity was also further enhanced for the Ni-, Ga-, In-, and Sn-doped catalysts with respect to Pd/s-TiO2 .
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Affiliation(s)
- Sheng Wang
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Dmitry E. Doronkin
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of TechnologyEngesserstr. 2076131KarlsruheGermany
| | - Martin Hähsler
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Xiaohui Huang
- Institute of NanotechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Di Wang
- Institute of NanotechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Karlsruhe Nano Micro FacilityKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Jan‐Dierk Grunwaldt
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of TechnologyEngesserstr. 2076131KarlsruheGermany
| | - Silke Behrens
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
- Institute of Inorganic ChemistryRuprecht-Karls University HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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Abstract
ZnO and Zr-modified ZnO were prepared using a precipitation method and used for the selective oxidation of cinnamaldehyde to benzaldehyde in the present study. The results showed that physicochemical properties of ZnO were significantly affected by the calcination temperature, and calcination of ZnO at 400 °C demonstrated the optimum catalytic activity for the selective oxidation of cinnamaldehyde to benzaldehyde. With 0.01 g ZnO calcined at 400 °C for 2 h as a catalyst, 8.0 g ethanol and 2.0 g cinnamaldehyde reacted at an oxygen pressure of 1.0 MPa and 70 °C for 60 min, resulting in benzaldehyde selectivity of 69.2% and cinnamaldehyde conversion of 16.1%. Zr was the optimal modifier for ZnO: when Zr-modified ZnO was used as the catalyst, benzaldehyde selectivity reached 86.2%, and cinnamaldehyde conversion was 17.6%. The X-ray diffractometer and N2 adsorption–desorption characterization indicated that doping with Zr could reduce the crystallite size of ZnO (101) and increase the specific surface area of the catalyst, which provided more active sites for the reaction. X-ray photoelectron spectrometer results showed that Zr-doping could exchange the electrons with ZnO and reduce the electron density in the outer layer of Zn, which would further affect benzaldehyde selectivity. The results of CO2 temperature-programmed desorption showed that Zr-modification enhanced the alkalinity of the catalyst surface, which caused the Zr–ZnO catalyst to exhibit higher catalytic activity.
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Sharapa DI, Doronkin DE, Studt F, Grunwaldt JD, Behrens S. Moving Frontiers in Transition Metal Catalysis: Synthesis, Characterization and Modeling. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807381. [PMID: 30803078 DOI: 10.1002/adma.201807381] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/25/2019] [Indexed: 06/09/2023]
Abstract
Nanosized transition metal particles are important materials in catalysis with a key role not only in academic research but also in many processes with industrial and societal relevance. Although small improvements in catalytic properties can lead to significant economic and environmental impacts, it is only now that knowledge-based design of such materials is emerging, partly because the understanding of catalytic mechanisms on nanoparticle surfaces is increasingly improving. A knowledge-based design requires bottom-up synthesis of well-defined model catalysts, an understanding of the catalytic nanomaterials "at work" (operando), and both a detailed understanding and a prediction by theoretical methods. This article reports on progress in colloidal synthesis of transition metal nanoparticles for preparation of model catalysts to close the materials gap between the discoveries of fundamental surface science and industrial application. The transition metal particles, however, often undergo extensive transformations when applied to the catalytic process and much progress has recently been achieved operando characterization techniques under relevant reaction conditions. They allow better understanding of size/structure-activity correlations in these systems. Moreover, the growth of computing power and the improvement of theoretical methods uncover mechanisms on nanoparticles and have recently predicted highly active particles for CO/CO2 hydrogenation or direct H2 O2 synthesis.
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Affiliation(s)
- Dmitry I Sharapa
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Dmitry E Doronkin
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 20, 76131, Karlsruhe, Germany
| | - Silke Behrens
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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Chang S, Meng S, Fu X, Zhang S, Zheng X, Chen S. Hydrogenation of Cinnamaldehyde to Hydrocinnamyl Alcohol on Pt/Graphite Catalyst. ChemistrySelect 2019. [DOI: 10.1002/slct.201803883] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Susheng Chang
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
| | - Sugang Meng
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
| | - Xianliang Fu
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
| | - Sujuan Zhang
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
| | - Xiuzhen Zheng
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
| | - Shifu Chen
- College of Chemistry and Materials Science; Huaibei Normal University, Anhui Huaibei; 235000 People's Republic of China
- College of Chemistry and Material Engineering; Anhui Science and Technology University, Anhui Fengyang; 233100 People's Republic of China
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Pei A, Ruan L, Liao J, Zhang H, Wang J, Yang K, Liu Z, Zhu L, Chen BH. Preparation of a PdRuNi/C tri-metallic nanocatalyst and its excellent catalytic performance for ethylbenzene hydrogenation reaction. NEW J CHEM 2019. [DOI: 10.1039/c9nj04083h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PdRuNi/C with the nanostructure of PdRu-on-Ni/Ni(OH)2 NPs exhibited excellent catalytic performance for ethylbenzene hydrogenation due to the nano-synergistic effect.
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Affiliation(s)
- An Pei
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Luna Ruan
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Jianhua Liao
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou 341000
- China
| | - Huan Zhang
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Jiexiang Wang
- Fine Chemical Industry Research Institute
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Kai Yang
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Zhiping Liu
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Lihua Zhu
- College of Chemistry and Chemical Engineering
- Faculty of Materials Metallurgy and Chemistry
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Bing Hui Chen
- Department of Chemical and Biochemical Engineering
- National Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
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Erdt AJ, Gutsche C, Fittschen UEA, Borchert H, Parisi J, Kolny-Olesiak J. Control of crystallographic phases and surface characterization of intermetallic platinum tin nanoparticles. CrystEngComm 2019. [DOI: 10.1039/c9ce00356h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Colloidal synthesis and characterization of intermetallic tin-rich platinum–tin nanoparticles with detailed surface characterization.
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Affiliation(s)
- Alexandra J. Erdt
- Energy and Semiconductor Research Laboratory
- Department of Physics
- Carl von Ossietzky University of Oldenburg
- D-26111 Oldenburg
- Germany
| | - Christian Gutsche
- Energy and Semiconductor Research Laboratory
- Department of Physics
- Carl von Ossietzky University of Oldenburg
- D-26111 Oldenburg
- Germany
| | - Ursula E. A. Fittschen
- Material Analysis and Functional Solid Matter Group
- Institute of Inorganic and Analytical Chemistry
- TU Clausthal
- D-38678 Clausthal-Zellerfeld
- Germany
| | - Holger Borchert
- Energy and Semiconductor Research Laboratory
- Department of Physics
- Carl von Ossietzky University of Oldenburg
- D-26111 Oldenburg
- Germany
| | - Jürgen Parisi
- Energy and Semiconductor Research Laboratory
- Department of Physics
- Carl von Ossietzky University of Oldenburg
- D-26111 Oldenburg
- Germany
| | - Joanna Kolny-Olesiak
- Energy and Semiconductor Research Laboratory
- Department of Physics
- Carl von Ossietzky University of Oldenburg
- D-26111 Oldenburg
- Germany
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10
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Magnetic Anchored CoPt Bimetallic Nanoparticles as Selective Hydrogenation Catalyst for Cinnamaldehyde. Catal Letters 2018. [DOI: 10.1007/s10562-018-2619-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Highly Selective Reduction of
α, β
‐Unsaturated Aldehydes and Ketones under Ambient Conditions using Tetraalkylphosphonium‐based Ionic Liquids. ChemistrySelect 2018. [DOI: 10.1002/slct.201801092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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