1
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Wang Z, Fernández-Escamilla HN, Guerrero-Sánchez J, Takeuchi N, Zaera F. Adsorption and Reactivity of Chiral Modifiers in Heterogeneous Catalysis: 1-(1-Naphthyl)ethylamine on Pt Surfaces. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zihao Wang
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
| | - Héctor Noé Fernández-Escamilla
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Apartado Postal 14, Ensenada, Baja California 22800, México
| | - Jonathan Guerrero-Sánchez
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Apartado Postal 14, Ensenada, Baja California 22800, México
| | - Noboru Takeuchi
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Apartado Postal 14, Ensenada, Baja California 22800, México
| | - Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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2
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Wu D, Han D, Zhou W, Streiff S, Khodakov AY, Ordomsky VV. Surface modification of metallic catalysts for the design of selective processes. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2079809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dan Wu
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, China
| | - Dandan Han
- College of Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Stephane Streiff
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Andrei Y. Khodakov
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
| | - Vitaly V. Ordomsky
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
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3
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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4
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Mameda T, Shimogaki M, Okamoto Y, Sugimura T. Chiral tandem modifiers: highly efficient cinchonidine-derivative modifiers at low concentrations for the enantioselective hydrogenation of ( E)-2,3-diphenylpropenoic acid over Pd/C. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01695h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral tandem modifiers linking two or three cinchonidine molecules at the 2′-position of the quinoline ring are highly effective at low concentrations for the enantioselective hydrogenation of PCA over Pd/C.
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Affiliation(s)
- Takuya Mameda
- Graduate School of Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Mio Shimogaki
- Graduate School of Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Yasuaki Okamoto
- Graduate School of Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takashi Sugimura
- Graduate School of Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
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5
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Tamura M, Hayashigami N, Nakayama A, Nakagawa Y, Tomishige K. Heterogeneous Enantioselective Hydrogenation of Ketones by 2-Amino-2′-hydroxy-1,1′-binaphthyl-Modified CeO2-Supported Ir Nanoclusters. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Masazumi Tamura
- Research Center for Artificial Photosynthesis, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Nao Hayashigami
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Akira Nakayama
- Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yoshinao Nakagawa
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Keiichi Tomishige
- Department of Applied Chemistry, Graduate School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
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6
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Schröder C, Haugg PA, Baumann A, Schmidt MC, Smyczek J, Schauermann S. Competing Reaction Pathways in Heterogeneously Catalyzed Hydrogenation of Allyl Cyanide: The Chemical Nature of Surface Species. Chemistry 2021; 27:17240-17254. [PMID: 34608688 PMCID: PMC9297874 DOI: 10.1002/chem.202103238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Indexed: 11/11/2022]
Abstract
We present a mechanistic study on the formation of an active ligand layer over Pd(111), turning the catalytic surface highly active and selective in partial hydrogenation of an α,β-unsaturated aldehyde acrolein. Specifically, we investigate the chemical composition of a ligand layer consisting of allyl cyanide deposited on Pd(111) and its dynamic changes under the hydrogenation conditions. On pristine surface, allyl cyanide largely retains its chemical structure and forms a layer of molecular species with the CN bond oriented nearly parallel to the underlying metal. In the presence of hydrogen, the chemical composition of allyl cyanide strongly changes. At 100 K, allyl cyanide transforms to unsaturated imine species, containing the C=C and C=N double bonds. At increasing temperatures, these species undergo two competing reaction pathways. First, the C=C bond become hydrogenated and the stable N-butylimine species are produced. In the competing pathway, the unsaturated imine reacts with hydrogen to fully hydrogenate the imine group and produce butylamine. The latter species are unstable under the hydrogenation reaction conditions and desorb from the surface, while the N-butylimine adsorbates formed in the first reaction pathway remain adsorbed and act as an active ligand layer in selective hydrogenation of acrolein.
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Affiliation(s)
- Carsten Schröder
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
| | - Philipp A. Haugg
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
| | - Ann‐Katrin Baumann
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
| | - Marvin C. Schmidt
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
| | - Jan Smyczek
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
| | - Swetlana Schauermann
- Institute of Physical ChemistryChristian-Albrechts-University KielMax-Eyth-Str. 224118KielGermany
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7
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In-situ and operando spectroscopies for the characterization of catalysts and of mechanisms of catalytic reactions. J Catal 2021. [DOI: 10.1016/j.jcat.2021.08.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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9
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Effect of Methyl-substitution of the Quinoline Ring of Cinchona Alkaloids on the Performance as a Modifier for the Enantioselective Hydrogenation of (E)-2,3-di(4-methoxyphenyl)propenoic Acid Over Pd/C: Kinetic Analysis. Catal Letters 2020. [DOI: 10.1007/s10562-020-03351-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Attia S, Spadafora EJ, Schmidt MC, Schröder C, Baumann AK, Schauermann S. Adsorption geometry and self-assembling of chiral modifier (R)-(+)-1-(1-naphthylethylamine) on Pt(111). Phys Chem Chem Phys 2020; 22:15696-15706. [PMID: 32618972 DOI: 10.1039/d0cp01946a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mechanistic study on interaction of a chiral modifier - (R)-(+)-1-(1-naphthylethylamine) (R-NEA) - with a single crystalline Pt(111) surface is reported. The details of the adsorption geometry of individual R-NEA molecules and their intermolecular interactions are addressed by combination of infrared reflection absorption spectroscopy (IRAS) and scanning tunneling microscopy (STM). The spectroscopic observations suggest that the molecules are tilted with respect to the underlying metal substrate with the long axis of the naphthyl ring being parallel and the short axis tilted with respect to the surface. In the medium coverage range, formation of directed 3-5 membered chains was observed by STM for the first time, which points to intermolecular bonding between individual molecules and might account for an unusual tilted adsorption geometry deduced from the IR spectra. Based on the STM images revealing the atomic structure of the Pt grid close to the R-NEA chains, we propose the adsorption configuration of NEA fitting both the IRAS and STM data. The obtained results suggest that this strong intermolecular interaction energetically stabilizes the tilted adsorption geometry of the naphthyl ring, which otherwise would be expected to lie flat on the metal to maximize the dispersive interactions. At the coverage close to saturation, R-NEA builds a self-assembled overlayer with hexagonal symmetry, exhibiting intermolecular distances larger than in the directed chains.
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Affiliation(s)
- Smadar Attia
- Institute of Physical Chemistry, Christian-Albrechts-University, Kiel Max-Eyth-Str. 2, 24118 Kiel, Germany.
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11
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Kim B, Nakatsuji M, Mameda T, Kubota T, Fujita M, Sugimura T, Okamoto Y. Kinetic Analysis of Enantioselective Hydrogenation of 2,3-( E)-Diarylpropenoic Acids over a Chiral Cinchona Alkaloid-Modified Pd/C Catalyst. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bokeun Kim
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Makoto Nakatsuji
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takuya Mameda
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takeshi Kubota
- Department of Material Science, Shimane University, Matsue, Shimane 690-8504, Japan
| | - Morifumi Fujita
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takashi Sugimura
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Yasuaki Okamoto
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
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12
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13
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Nakatsuji M, Fujita M, Okamoto Y, Sugimura T. Kinetic analysis of the asymmetric hydrogenation of ( E)-2,3-diphenylpropenoic acid over cinchonidine derivative-modified Pd/C: quinoline ring modification. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01380c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The substitutions at the 2′- and/or 6′-positions of the quinoline ring of cinchonidine reduce both the intrinsic enantioselectivity and adsorption strength for the enantioselective hydrogenation of α-phenylcinnamic acid over Pd/C.
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14
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Sugimura T, Tomatsuri S, Fujita M, Okamoto Y. Hydrogen/Deuterium Isotopic Labeling Study of Enantioselective Hydrogenation of (E)-2-Methyl-2-butenoic Acid over a Cinchonidine-Modified Pd/C Catalyst. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190169] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takashi Sugimura
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Satoshi Tomatsuri
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Morifumi Fujita
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Yasuaki Okamoto
- Graduate School of Material Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
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15
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Attia S, Schmidt MC, Schröder C, Schauermann S. Formation and Stabilization Mechanisms of Enols on Pt through Multiple Hydrogen Bonding. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01481] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Smadar Attia
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
| | - Marvin C. Schmidt
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
| | - Carsten Schröder
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
| | - Swetlana Schauermann
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
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16
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Attia S, Spadafora EJ, Hartmann J, Freund HJ, Schauermann S. Molecular beam/infrared reflection-absorption spectroscopy apparatus for probing heterogeneously catalyzed reactions on functionalized and nanostructured model surfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:053903. [PMID: 31153295 DOI: 10.1063/1.5093487] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
A new custom-designed ultrahigh vacuum (UHV) apparatus combining molecular beam techniques and in situ surface spectroscopy for reactivity measurements on complex nanostructured model surfaces is described. It has been specifically designed to study the mechanisms, kinetics, and dynamics of heterogeneously catalyzed reactions over well-defined model catalysts consisting of metal nanoparticles supported on thin oxide films epitaxially grown on metal single crystals. The reactivity studies can be performed in a broad pressure range starting from UHV up to the ambient pressure conditions. The UHV system includes (i) a preparation chamber providing the experimental techniques required for the preparation and structural characterization of single-crystal based model catalysts such as oxide supported metal particles or ordered oxide surfaces and (ii) the reaction chamber containing three molecular beams-two effusive and one supersonic, which are crossed at the same point on the sample surface, infrared reflection-absorption spectroscopy for the detection of surface-adsorbed species, and quadrupole mass spectrometry for gas phase analysis. The supersonic beam is generated in a pulsed supersonic expansion and can be modulated via a variable duty-cycle chopper. The effusive beams are produced by newly developed compact differentially pumped sources based on multichannel glass capillary arrays. Both effusive sources can be modulated by a vacuum-motor driven chopper and are capable of providing high flux and high purity beams. The apparatus contains an ambient pressure cell, which is connected to the preparation chamber via an in situ sample transfer system and provides an experimental possibility to study the reactivity of well-defined nanostructured model catalysts in a broad range of pressure conditions-up to ambient pressure-with the gas phase analysis based on gas chromatography. Additionally, a dedicated deposition chamber is connected to the preparation chamber, which is employed for the in situ functionalization of model surfaces with large organic molecules serving as promoters or modifiers of chemical reactions. We present a general overview of the apparatus as well as a description of the individual components and their interplay. The results of the test measurements involving the most important components are presented and discussed.
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Affiliation(s)
- Smadar Attia
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Evan J Spadafora
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2, 24118 Kiel, Germany
| | - Jens Hartmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Swetlana Schauermann
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2, 24118 Kiel, Germany
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17
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Schauermann S. Partial Hydrogenation of Unsaturated Carbonyl Compounds: Toward Ligand-Directed Heterogeneous Catalysis. J Phys Chem Lett 2018; 9:5555-5566. [PMID: 30204444 DOI: 10.1021/acs.jpclett.8b01782] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this Perspective, we report on the recent progress in atomistic-level understanding of selective partial hydrogenation of α,β-unsaturated carbonyl compounds, particularly acrolein, toward unsaturated alcohols over model single crystalline and nanostructured Pd catalysts. This reaction was observed to proceed with nearly 100% selectivity over Pd(111) but not over supported Pd nanoparticles. The origin of the high selectivity was related to formation of a dense overlayer of oxopropyl surface species occurring at the early reaction stages via partial hydrogenation of the C=C bond in acrolein with only one H atom. This oxopropyl overlayer strongly modifies the adsorption and reactive properties of Pd(111), turning it 100% selective toward C=O bond hydrogenation. The underlying reaction mechanism represents a particular case of ligand-directed heterogeneous catalysis, in which the surface adsorbates do not directly participate in the catalytic process as the reaction intermediates but strongly affect the elementary reaction steps via specific adsorbate-adsorbate interactions.
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Affiliation(s)
- Swetlana Schauermann
- Institute of Physical Chemistry , Christian-Albrechts-University Kiel , Max-Eyth-Strasse 2 , 24118 Kiel , Germany
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18
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Meemken F, Rodríguez-García L. Revealing Catalytically Relevant Surface Species by Kinetic Isotope Effect Spectroscopy: H-Bonding to Ester Carbonyl of trans-Ethyl Pyruvate Controls Enantioselectivity on a Cinchona-Modified Pt Catalyst. J Phys Chem Lett 2018; 9:996-1001. [PMID: 29420894 DOI: 10.1021/acs.jpclett.7b03360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Monitoring active surface species on an operating technical catalyst is a challenging task due to the presence of multiple different adsorption sites and the abundance of bulk species. In this work, kinetic isotope effect (KIE) spectroscopy is introduced to capture the signals of catalytically relevant hydrogenation species from the IR spectroscopic detection in attenuated total reflection mode. The catalytic interface formed between a cinchona-modified Pt/Al2O3 catalyst and the solvent toluene is sensitively probed directly at the rate limiting step(s) during the asymmetric hydrogenation of ethyl pyruvate by measuring the effects of substituting H2 by D2 kinetically and spectroscopically in the same operando experiment. The application of KIE spectroscopy provides unprecedented molecular level insight into the structure of the diastereomeric intermediate surface complex and the phenomenon rate enhancement, which revolutionizes our understanding of chirally modified metal catalysts.
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Affiliation(s)
- Fabian Meemken
- Department of Chemistry and Applied Biosciences, Institute of Chemical and Biomolecular Engineering , ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Laura Rodríguez-García
- Department of Chemistry and Applied Biosciences, Institute of Chemical and Biomolecular Engineering , ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
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19
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Rodríguez-García L, Walker R, Spier E, Hungerbühler K, Meemken F. Mass transfer considerations for monitoring catalytic solid–liquid interfaces under operating conditions. REACT CHEM ENG 2018. [DOI: 10.1039/c7re00179g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A combined computational and experimental approach for optimizing mass transfer in microreactors for operando ATR-IR spectroscopy characterization of catalytic solid–liquid interfaces.
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Affiliation(s)
- Laura Rodríguez-García
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Roland Walker
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Eyal Spier
- COMSOL Multiphysics GmbH
- 8005 Zürich
- Switzerland
| | - Konrad Hungerbühler
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
| | - Fabian Meemken
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- CH-8093 Zürich
- Switzerland
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20
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Meemken F, Baiker A. Recent Progress in Heterogeneous Asymmetric Hydrogenation of C═O and C═C Bonds on Supported Noble Metal Catalysts. Chem Rev 2017; 117:11522-11569. [DOI: 10.1021/acs.chemrev.7b00272] [Citation(s) in RCA: 198] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabian Meemken
- Institute for Chemical and
Biochemical Engineering, Department of Chemistry and Applied Biosciences, ETH-Zurich, Hönggerberg, HCI, Vladimir Prelog Weg 1, CH-8093 Zurich, Switzerland
| | - Alfons Baiker
- Institute for Chemical and
Biochemical Engineering, Department of Chemistry and Applied Biosciences, ETH-Zurich, Hönggerberg, HCI, Vladimir Prelog Weg 1, CH-8093 Zurich, Switzerland
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