126
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Wang X, Sternberg M, Kohler FTU, Melcher BU, Wasserscheid P, Meyer K. Long-alkyl-chain-derivatized imidazolium salts and ionic liquid crystals with tailor-made properties. RSC Adv 2014. [DOI: 10.1039/c3ra47250g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New ionic liquids and ionic liquid crystalline materials with custom-tailored properties were synthesized based on long-alkyl-chain-derivatized 1,3-dialkylimidazolium salts.
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127
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Schneider MJ, Haumann M, Stricker M, Sundermeyer J, Wasserscheid P. Gas-phase oxycarbonylation of methanol for the synthesis of dimethyl carbonate using copper-based Supported Ionic Liquid Phase (SILP) catalysts. J Catal 2014. [DOI: 10.1016/j.jcat.2013.08.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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128
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Brückner N, Obesser K, Bösmann A, Teichmann D, Arlt W, Dungs J, Wasserscheid P. Evaluation of industrially applied heat-transfer fluids as liquid organic hydrogen carrier systems. CHEMSUSCHEM 2014; 7:229-235. [PMID: 23956191 DOI: 10.1002/cssc.201300426] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Indexed: 06/02/2023]
Abstract
Liquid organic hydrogen carrier (LOHC) systems offer a very attractive method for the decentralized storage of renewable excess energy. In this contribution, industrially well-established heat-transfer oils (typically sold under trade names, e.g., Marlotherm) are proposed as a new class of LOHC systems. It is demonstrated that the liquid mixture of isomeric dibenzyltoluenes (m.p. -39 to -34 °C, b.p. 390 °C) can be readily hydrogenated to the corresponding mixture of perhydrogenated analogues by binding 6.2 wt% of H2. The liquid H2 -rich form can be stored and transported similarly to diesel fuel. It readily undergoes catalytic dehydrogenation at temperatures above 260 °C, which proves its applicability as a reversible H2 carrier. The presented LOHC systems are further characterized by their excellent technical availability at comparably low prices, full registration of the H2 -lean forms, and excellent thermal stabilities.
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129
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Niedermaier I, Bahlmann M, Papp C, Kolbeck C, Wei W, Krick Calderón S, Grabau M, Schulz PS, Wasserscheid P, Steinrück HP, Maier F. Carbon Dioxide Capture by an Amine Functionalized Ionic Liquid: Fundamental Differences of Surface and Bulk Behavior. J Am Chem Soc 2013; 136:436-41. [DOI: 10.1021/ja410745a] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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130
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Scholz J, Hager V, Wang X, Kohler FTU, Sternberg M, Haumann M, Szesni N, Meyer K, Wasserscheid P. Ethylene to 2-Butene in a Continuous Gas Phase Reaction using SILP-Type Cationic Nickel Catalysts. ChemCatChem 2013. [DOI: 10.1002/cctc.201300636] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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131
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Klefer H, Roth D, Eckle I, Schrage C, Böhringer B, Haumann M, Wasserscheid P. Kontinuierliche Gasreinigung mit SILP-Materialien. CHEM-ING-TECH 2013. [DOI: 10.1002/cite.201300077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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132
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Kolbeck C, Deyko A, Matsuda T, Kohler FTU, Wasserscheid P, Maier F, Steinrück HP. Temperature-Dependent Surface-Enrichment Effects of Imidazolium-Based Ionic Liquids. Chemphyschem 2013; 14:3726-30. [DOI: 10.1002/cphc.201300719] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Indexed: 11/09/2022]
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133
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Schernich S, Laurin M, Lykhach Y, Tsud N, Sobota M, Skála T, Prince KC, Taccardi N, Wagner V, Steinrück HP, Matolín V, Wasserscheid P, Libuda J. Interactions of Imidazolium-Based Ionic Liquids with Oxide Surfaces Controlled by Alkyl Chain Functionalization. Chemphyschem 2013; 14:3673-7. [PMID: 24123498 DOI: 10.1002/cphc.201300792] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Indexed: 11/09/2022]
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134
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Kuschnerow JC, Titze-Frech K, Schulz PS, Wasserscheid P, Scholl S. Continuous Transesterification with Acidic Ionic Liquids as Homogeneous Catalysts. Chem Eng Technol 2013. [DOI: 10.1002/ceat.201300369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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135
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Titze-Frech K, Ignatiev N, Uerdingen M, Schulz PS, Wasserscheid P. Highly Selective Aromatic Alkylation of Phenol and Anisole by Using Recyclable Brønsted Acidic Ionic Liquid Systems. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300579] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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136
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Schönweiz A, Debuschewitz J, Walter S, Wölfel R, Hahn H, Dyballa KM, Franke R, Haumann M, Wasserscheid P. Ligand-Modified Rhodium Catalysts on Porous Silica in the Continuous Gas-Phase Hydroformylation of Short-Chain Alkenes-Catalytic Reaction in Liquid-Supported Aldol Products. ChemCatChem 2013. [DOI: 10.1002/cctc.201300305] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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137
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Niedermaier I, Taccardi N, Wasserscheid P, Maier F, Steinrück HP. Probing a Gas/Liquid Acid-Base Reaction by X-ray Photoelectron Spectroscopy. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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138
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Niedermaier I, Taccardi N, Wasserscheid P, Maier F, Steinrück HP. Probing a Gas/Liquid Acid-Base Reaction by X-ray Photoelectron Spectroscopy. Angew Chem Int Ed Engl 2013; 52:8904-7. [DOI: 10.1002/anie.201304115] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Indexed: 11/07/2022]
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139
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Koller TM, Rausch MH, Ramos J, Schulz PS, Wasserscheid P, Economou IG, Fröba AP. Thermophysical Properties of the Ionic Liquids [EMIM][B(CN)4] and [HMIM][B(CN)4]. J Phys Chem B 2013; 117:8512-23. [DOI: 10.1021/jp400315h] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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140
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Gleichweit C, Amende M, Schernich S, Zhao W, Lorenz MPA, Höfert O, Brückner N, Wasserscheid P, Libuda J, Steinrück HP, Papp C. Dehydrogenation of dodecahydro-N-ethylcarbazole on Pt(111). CHEMSUSCHEM 2013; 6:974-977. [PMID: 23674265 DOI: 10.1002/cssc.201300263] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Indexed: 06/02/2023]
Abstract
Sloshing hydrogen: Liquid organic hydrogen carriers are high-boiling organic molecules, which can be reversibly hydrogenated and dehydrogenated in catalytic processes and are, therefore, a promising chemical hydrogen storage material. One of the promising candidates is the pair N-ethylcarbazole/perhydro-N-ethylcarbazole (NEC/H₁₂-NEC). The dehydrogenation and possible side reactions on a Pt(111) surface are evaluated in unprecedented detail.
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141
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Schneider MJ, Lijewski M, Woelfel R, Haumann M, Wasserscheid P. Continuous Gas-Phase Hydroaminomethylation using Supported Ionic Liquid Phase Catalysts. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301365] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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142
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Schneider MJ, Lijewski M, Woelfel R, Haumann M, Wasserscheid P. Continuous Gas-Phase Hydroaminomethylation using Supported Ionic Liquid Phase Catalysts. Angew Chem Int Ed Engl 2013; 52:6996-9. [DOI: 10.1002/anie.201301365] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 03/29/2013] [Indexed: 11/12/2022]
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143
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Kusche M, Enzenberger F, Bajus S, Niedermeyer H, Bösmann A, Kaftan A, Laurin M, Libuda J, Wasserscheid P. Enhanced Activity and Selectivity in Catalytic Methanol Steam Reforming by Basic Alkali Metal Salt Coatings. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209758] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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144
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Kusche M, Enzenberger F, Bajus S, Niedermeyer H, Bösmann A, Kaftan A, Laurin M, Libuda J, Wasserscheid P. Enhanced activity and selectivity in catalytic methanol steam reforming by basic alkali metal salt coatings. Angew Chem Int Ed Engl 2013; 52:5028-32. [PMID: 23554090 PMCID: PMC4648027 DOI: 10.1002/anie.201209758] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Indexed: 11/12/2022]
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145
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Vasylyev S, Damm C, Segets D, Hanisch M, Taccardi N, Wasserscheid P, Peukert W. Synthesis of silver nanoparticles in melts of amphiphilic polyesters. NANOTECHNOLOGY 2013; 24:115604. [PMID: 23449006 DOI: 10.1088/0957-4484/24/11/115604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The current work presents a one-step procedure for the synthesis of amphiphilic silver nanoparticles suitable for production of silver-filled polymeric materials. This solvent free synthesis via reduction of Tollens' reagent as silver precursor in melts of amphiphilic polyesters consisting of hydrophilic poly(ethylene glycol) blocks and hydrophobic alkyl chains allows the production of silver nanoparticles without any by-product formation. This makes them especially interesting for the production of medical devices with antimicrobial properties. In this article the influences of the chain length of the hydrophobic block in the amphiphilic polyesters and the process temperature on the particle size distribution (PSD) and the stability of the particles against agglomeration are discussed. According to the results of spectroscopic and viscosimetric investigations the silver precursor is reduced to elemental silver nanoparticles by a single electron transfer process from the poly(ethylene glycol) chain to the silver ion.
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146
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Schmidt M, Cubillas AM, Taccardi N, Euser TG, Cremer T, Maier F, Steinrück HP, Russell PSJ, Wasserscheid P, Etzold BJM. Cover Picture: Chemical and (Photo)-Catalytical Transformations in Photonic Crystal Fibers (ChemCatChem 3/2013). ChemCatChem 2013. [DOI: 10.1002/cctc.201390006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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147
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Schmidt M, Cubillas AM, Taccardi N, Euser TG, Cremer T, Maier F, Steinrück HP, Russell PSJ, Wasserscheid P, Etzold BJM. Chemical and (Photo)-Catalytical Transformations in Photonic Crystal Fibers. ChemCatChem 2013. [DOI: 10.1002/cctc.201200676] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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148
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Tietze R, Dürr S, Lyer S, Taccardi N, Wasserscheid P, Canella L, Wagner F, Petry W, Alexiou C. Phantom Studies of Neutron Capture of Boron Containing Magnetic Nanoparticles. BIOMED ENG-BIOMED TE 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-B/bmt-2013-4045/bmt-2013-4045.xml. [DOI: 10.1515/bmt-2013-4045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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149
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Schernich S, Laurin M, Lykhach Y, Steinrück HP, Tsud N, Skála T, Prince KC, Taccardi N, Matolín V, Wasserscheid P, Libuda J. Functionalization of Oxide Surfaces through Reaction with 1,3-Dialkylimidazolium Ionic Liquids. J Phys Chem Lett 2013; 4:30-35. [PMID: 26291207 DOI: 10.1021/jz301856a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Practical applications of ionic liquids (ILs) often involve IL/oxide interfaces, but little is known regarding their interfacial chemistry. The unusual physicochemical properties of ILs, including their exceptionally low vapor pressure, provide access to such interfaces using a surface science approach in ultrahigh vacuum (UHV). We have applied synchrotron radiation photoelectron spectroscopy (SR-PES) to the study of a thin film of the ionic liquid [C6C1Im][Tf2N] prepared in situ in UHV on ordered stoichiometric CeO2(111) and partially reduced CeO2-x. On the partially reduced surface, we mostly observe decomposition of the anion. On the stoichiometric CeO2(111) surface, however, a layer of surface-anchored organic products with high thermal stability is formed upon reaction of the cation. The suggested acid-base reaction pathway may provide well-defined functionalized IL/solid interfaces on basic oxides.
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150
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Cubillas AM, Unterkofler S, Euser TG, Etzold BJM, Jones AC, Sadler PJ, Wasserscheid P, Russell PSJ. Photonic crystal fibres for chemical sensing and photochemistry. Chem Soc Rev 2013; 42:8629-48. [PMID: 23753016 DOI: 10.1039/c3cs60128e] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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