51
|
Schüth F, Wasserscheid P. Wilhelm Keim (1934-2018). Angew Chem Int Ed Engl 2019; 58:31-32. [PMID: 30485636 DOI: 10.1002/anie.201812688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Wilhelm "Willi" Keim, professor emeritus at the RWTH Aachen University, passed away on September 30, 2018. Keim was best known for his role in developing the Shell higher olefins process (SHOP), and also made pioneering contributions to the areas of liquid-liquid biphasic catalysis, and green and sustainable chemistry.
Collapse
|
52
|
Schüth F, Wasserscheid P. Wilhelm Keim (1934-2018). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
53
|
Müller T, Dixon JT, Haumann M, Wasserscheid P. Trimerization and tetramerization of ethylene in continuous gas-phase reaction using a Cr-based supported liquid phase catalyst. REACT CHEM ENG 2019. [DOI: 10.1039/c8re00179k] [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
Selective tri- and tetramerization of ethylene in continuous operation was achieved by immobilization of the homogeneous chromium catalyst plus MAO co-catalyst in a thin film of high boiling hydrocarbons.
Collapse
|
54
|
Auer F, Blaumeiser D, Bauer T, Bösmann A, Szesni N, Libuda J, Wasserscheid P. Boosting the activity of hydrogen release from liquid organic hydrogen carrier systems by sulfur-additives to Pt on alumina catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00817a] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Liquid organic hydrogen carriers represent an interesting alternative for hydrogen storage and transport. We demonstrate a method to simultaneously increase the activity of LOHC dehydrogenation catalysts and reduce side product formation.
Collapse
|
55
|
Marinkovic JM, Riisager A, Franke R, Wasserscheid P, Haumann M. Fifteen Years of Supported Ionic Liquid Phase-Catalyzed Hydroformylation: Material and Process Developments. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04010] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
56
|
Stepić R, Wick CR, Strobel V, Berger D, Vučemilović‐Alagić N, Haumann M, Wasserscheid P, Smith A, Smith DM. Mechanism of the Water–Gas Shift Reaction Catalyzed by Efficient Ruthenium‐Based Catalysts: A Computational and Experimental Study. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201813595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
57
|
Stepić R, Wick CR, Strobel V, Berger D, Vučemilović‐Alagić N, Haumann M, Wasserscheid P, Smith A, Smith DM. Mechanism of the Water–Gas Shift Reaction Catalyzed by Efficient Ruthenium Based Catalysts: A Computational and Experimental Study. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
58
|
Nagengast J, Hahn S, Taccardi N, Kehrer M, Kadar J, Collias D, Dziezok P, Wasserscheid P, Albert J. Highly Selective Synthesis of Acrylic Acid from Lactide in the Liquid Phase. CHEMSUSCHEM 2018; 11:2936-2943. [PMID: 29873891 DOI: 10.1002/cssc.201800914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 06/04/2018] [Indexed: 06/08/2023]
Abstract
A new reaction system for the highly selective, hydrobromic acid catalyzed conversion of lactide into acrylic acid under mild conditions is reported. The applied liquid reaction system consists of a temperature-stable bromide-containing ionic liquid and 2-bromopropionic acid as a source of dry HBr, with no volatile organic solvent being used. This allows for the in situ removal of the formed acrylic acid, leading to an unmatched acrylic acid selectivity of over 72 % at full lactide conversion. Accounting for leftover reaction intermediates on the way to acrylic acid, which could be recycled in an elaborate continuous process, the proposed reaction system shows potential for acrylic acid yields well above 85 % in the liquid phase. This opens new avenues for the effective conversion of biogenic lactic acid (e.g., obtained by fermentation from starch) to acrylic acid. The resulting bio-acrylic acid is a highly attractive product for, for example, the diaper industry, where we expect consumers to be especially sensitive to aspects of sustainability.
Collapse
|
59
|
Jorschick H, Bösmann A, Preuster P, Wasserscheid P. Charging a Liquid Organic Hydrogen Carrier System with H
2
/CO
2
Gas Mixtures. ChemCatChem 2018. [DOI: 10.1002/cctc.201800960] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
60
|
Strobel V, Haumann M, Wasserscheid P. Rational design of SILP catalysts with „fully digital” data handling. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
61
|
Bertleff B, Goebel R, Claußnitzer J, Korth W, Skiborowski M, Wasserscheid P, Jess A, Albert J. Investigations on Catalyst Stability and Product Isolation in the Extractive Oxidative Desulfurization of Fuels Using Polyoxometalates and Molecular Oxygen. ChemCatChem 2018. [DOI: 10.1002/cctc.201801081] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
62
|
Galvan Y, Phillips KR, Haumann M, Wasserscheid P, Zarraga R, Vogel N. Ionic-Liquid-Infused Nanostructures as Repellent Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6894-6902. [PMID: 29356538 DOI: 10.1021/acs.langmuir.7b03993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In order to prepare lubricant-infused repellent coatings on silica nanostructures using low vapor pressure ionic liquids as lubricants, we study the wetting behavior of a set of imidazolium-based ionic liquids with different alkyl side chains as a function of the applied surface functionalities. We take advantage of the structural color of inverse opals prepared from a colloidal coassembly technique to study the infiltration of ionic liquids into these nanoporous structures. We find that the more hydrophobic ionic liquids with butyl and hexyl side chains can completely infiltrate inverse opals functionalized with mixed self-assembled monolayers composed of imidazole groups and aliphatic hydrocarbon chains, which we introduce via silane chemistry. These molecular species reflect the chemical nature of the ionic liquid, thereby increasing the affinity between the liquid and solid surface. The mixed surface chemistry provides sufficiently small contact angles with the ionic liquid to infiltrate the nanopores while maximizing the contact angle with water. As a result, the mixed monolayers enable the design of a stable ionic liquid/solid interface that is able to repel water as a test liquid. Our results underline the importance of matching chemical affinities to predict and control the wetting behavior in complex, multiphase systems.
Collapse
|
63
|
Ponce S, Munoz M, Cubillas AM, Euser TG, Zhang G, Russell PSJ, Wasserscheid P, Etzold BJM. Stable Immobilization of Size‐Controlled Bimetallic Nanoparticles in Photonic Crystal Fiber Microreactor. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201700131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
64
|
Kehrer M, Mehler J, Taccardi N, Nagengast J, Kadar J, Collias D, Dziezok P, Wasserscheid P, Albert J. Zwitterionic Hydrobromic Acid Carriers for the Synthesis of 2-Bromopropionic Acid from Lactide. CHEMSUSCHEM 2018; 11:1063-1072. [PMID: 29389081 DOI: 10.1002/cssc.201702369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/01/2018] [Indexed: 06/07/2023]
Abstract
A convenient and highly efficient way of synthesizing 2-bromopropionic acid (2-BrPA) from lactide is presented. The procedure uses ionic liquids obtained from the addition of HBr to ammonium-based zwitterions as the solvent and bromination agent. The buffered HBr acidity, high polarity, and charge stabilizing character of the ionic liquid (IL) enable the synthesis of 2-BrPA with excellent selectivity. The best results are obtained with an imidazolium-based IL, that is, 1-(4-butanesulfonic acid)-3-methylimidazolium bromide ([MIMBS]Br). The HBr loading and water content of the IL are crucial parameters for the bromination reaction. The formed 2-BrPA product can be selectively isolated by extraction from the IL, and the unconverted substrate remains in the [MIMBS]Br IL for the next run. Successful recycling of the IL over four cycles is demonstrated.
Collapse
|
65
|
Bauer T, Stepic R, Wolf P, Kollhoff F, Karawacka W, Wick CR, Haumann M, Wasserscheid P, Smith DM, Smith AS, Libuda J. Dynamic equilibria in supported ionic liquid phase (SILP) catalysis: in situ IR spectroscopy identifies [Ru(CO)xCly]n species in water gas shift catalysis. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02199b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Ru-based SILP systems efficiently catalyze the low-temperature water-gas shift reaction (WGSR).
Collapse
|
66
|
Grabau M, Erhard J, Taccardi N, Calderon SK, Wasserscheid P, Görling A, Steinrück HP, Papp C. Frontispiece: Spectroscopic Observation and Molecular Dynamics Simulation of Ga Surface Segregation in Liquid Pd-Ga Alloys. Chemistry 2017. [DOI: 10.1002/chem.201787064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
67
|
Zaitsau DH, Pohako-Esko K, Arlt S, Emel'yanenko VN, Schulz PS, Wasserscheid P, Schulz A, Verevkin SP. Thermodynamics of imidazolium based ionic liquids with cyano containing anions. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
68
|
Grabau M, Erhard J, Taccardi N, Calderon SK, Wasserscheid P, Görling A, Steinrück HP, Papp C. Spectroscopic Observation and Molecular Dynamics Simulation of Ga Surface Segregation in Liquid Pd-Ga Alloys. Chemistry 2017; 23:17701-17706. [DOI: 10.1002/chem.201703627] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Indexed: 11/06/2022]
|
69
|
Xu T, Waehler T, Vecchietti J, Bonivardi A, Bauer T, Schwegler J, Schulz PS, Wasserscheid P, Libuda J. Interaction of Ester-Functionalized Ionic Liquids with Atomically-Defined Cobalt Oxides Surfaces: Adsorption, Reaction and Thermal Stability. Chemphyschem 2017; 18:3443-3453. [DOI: 10.1002/cphc.201700843] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/11/2017] [Indexed: 01/08/2023]
|
70
|
Schwarz M, Bachmann P, Silva TN, Mohr S, Scheuermeyer M, Späth F, Bauer U, Düll F, Steinhauer J, Hohner C, Döpper T, Noei H, Stierle A, Papp C, Steinrück HP, Wasserscheid P, Görling A, Libuda J. Model Catalytic Studies of Novel Liquid Organic Hydrogen Carriers: Indole, Indoline and Octahydroindole on Pt(111). Chemistry 2017; 23:14806-14818. [DOI: 10.1002/chem.201702333] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Indexed: 12/31/2022]
|
71
|
Do G, Stiegler T, Fiegl M, Adler L, Körner C, Bösmann A, Freund H, Schwieger W, Wasserscheid P. Electrophoretic Deposition of Boehmite on Additively Manufactured, Interpenetrating Periodic Open Cellular Structures for Catalytic Applications. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02453] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
72
|
Xu T, Waehler T, Vecchietti J, Bonivardi A, Bauer T, Schwegler J, Schulz PS, Wasserscheid P, Libuda J. Gluing Ionic Liquids to Oxide Surfaces: Chemical Anchoring of Functionalized Ionic Liquids by Vapor Deposition onto Cobalt(II) Oxide. Angew Chem Int Ed Engl 2017; 56:9072-9076. [PMID: 28600894 DOI: 10.1002/anie.201704107] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Indexed: 11/05/2022]
Abstract
Ionic liquids (IL) hold a great potential as novel electrolytes for applications in electronic materials and energy technology. The functionality of ILs in these applications relies on their interface to semiconducting nanomaterials. Therefore, methods to control the chemistry and structure of this interface are the key to assemble new IL-based electronic and electrochemical materials. Here, we present a new method to prepare a chemically well-defined interface between an oxide and an IL film. An imidazolium-based IL, which is carrying an ester group, is deposited onto cobalt oxide surface by evaporation. The IL binds covalently to the surface by thermally activated cleavage of the ester group and formation of a bridging carboxylate. The anchoring reaction shows high structure sensitivity, which implies that the IL film can be adhered selectively to specific oxide surfaces.
Collapse
|
73
|
Xu T, Waehler T, Vecchietti J, Bonivardi A, Bauer T, Schwegler J, Schulz PS, Wasserscheid P, Libuda J. Gluing Ionic Liquids to Oxide Surfaces: Chemical Anchoring of Functionalized Ionic Liquids by Vapor Deposition onto Cobalt(II) Oxide. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
74
|
Preuster P, Alekseev A, Wasserscheid P. Hydrogen Storage Technologies for Future Energy Systems. Annu Rev Chem Biomol Eng 2017; 8:445-471. [DOI: 10.1146/annurev-chembioeng-060816-101334] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Future energy systems will be determined by the increasing relevance of solar and wind energy. Crude oil and gas prices are expected to increase in the long run, and penalties for CO2 emissions will become a relevant economic factor. Solar- and wind-powered electricity will become significantly cheaper, such that hydrogen produced from electrolysis will be competitively priced against hydrogen manufactured from natural gas. However, to handle the unsteadiness of system input from fluctuating energy sources, energy storage technologies that cover the full scale of power (in megawatts) and energy storage amounts (in megawatt hours) are required. Hydrogen, in particular, is a promising secondary energy vector for storing, transporting, and distributing large and very large amounts of energy at the gigawatt-hour and terawatt-hour scales. However, we also discuss energy storage at the 120–200-kWh scale, for example, for onboard hydrogen storage in fuel cell vehicles using compressed hydrogen storage. This article focuses on the characteristics and development potential of hydrogen storage technologies in light of such a changing energy system and its related challenges. Technological factors that influence the dynamics, flexibility, and operating costs of unsteady operation are therefore highlighted in particular. Moreover, the potential for using renewable hydrogen in the mobility sector, industrial production, and the heat market is discussed, as this potential may determine to a significant extent the future economic value of hydrogen storage technology as it applies to other industries. This evaluation elucidates known and well-established options for hydrogen storage and may guide the development and direction of newer, less developed technologies.
Collapse
|
75
|
Kaftan A, Klefer H, Haumann M, Laurin M, Wasserscheid P, Libuda J. An operando DRIFTS-MS study of NH3 removal by supported ionic liquid phase (SILP) materials. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|