Improving the Performance of Supported Ionic Liquid Phase Catalysts for the Ultra-Low-Temperature Water Gas Shift Reaction Using Organic Salt Additives

Wolf, Patrick; Wick, Christian R.; Mehler, Julian; Blaumeiser, Dominik; Schötz, Simon; Bauer, Tanja; Libuda, Jörg; Smith, David M.; Smith, Ana‐Sunčana; Haumann, Marco

doi:10.1021/acscatal.1c05979

Cited by 13 publications

(7 citation statements)

References 59 publications

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“…In addition, the introduction of reaction additives signicantly improved the reaction progress for the enhanced catalyst dispersion and the lowered-down reaction barrier. 40,41 For instance, upon the addition of Na 2 -HAsO 4 in the polar solvent, AOB was formed in signicant quantities (Table S9, † entry 3). Various additives, including Na 2 CO 3 , K 2 CO 3 , NaHCO S9, † entry 10).…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the introduction of reaction additives significantly improved the reaction progress for the enhanced catalyst dispersion and the lowered-down reaction barrier. 40,41 For instance, upon the addition of Na 2 HAsO 4 in the polar solvent, AOB was formed in significant quantities (Table S9,† entry 3). Various additives, including Na 2 CO 3 , K 2 CO 3 , NaHCO 3 , K 3 PO 4 , Na 2 SO 3 , Na 2 SO 4 , Na 2 HSO 3 , Na 2 S 2 O 3 , Na 2 S 2 O 4 , Na 2 S 2 O 8 , As 2 O 3 , NaAsO 2 and Na 2 HAsO 4 , were extensively investigated in polar solvents, where Na 2 S 2 O 8 demonstrated great oxidative reaction activity with excellent AB selectivity (Table S9,† entry 10).…”

Section: Resultsmentioning

confidence: 99%

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Controllable redox reaction cycle enabled by multifunctional Ru-containing polyoxometalate-based catalysts

Yuan

Chen

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Controllable redox reaction cycle enabled by multifunctional Ru-containing polyoxometalate-based catalysts

Yuan

Chen

et al. 2023

J. Mater. Chem. A

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“…The concept of supported ionic liquid phases (SILPs) describes materials where a thin layer of ionic liquid remains confined on a porous solid support, resulting in composite materials that possess unique properties . The combination of the liquid-like behavior of ionic liquids with the structural integrity of solid supports lead to numerous applications that have emerged over the past years, covering catalysis, − gas purification, and storage, − as well as metal recovery. − Especially in catalysis, SILPs combine the properties of ionic liquids with the advantages of heterogeneous systems, such as easy catalyst separation and improved mass transfer. Furthermore, the application of SILPs circumvents the use of bulk quantities of ionic liquids, which is not feasible for their application on an industrial scale. − …”

Section: Introductionmentioning

confidence: 99%

Silicon Oxycarbide (SiOC)-Supported Ionic Liquids: Heterogeneous Catalysts for Cyclic Carbonate Formation

Mikšovsky,

Rauchenwald,

Naghdi

et al. 2024

ACS Sustainable Chem. Eng.

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Silicon oxycarbides (SiOCs) impregnated with tetrabutylammonium halides (TBAX) were investigated as an alternative to silica-based supported ionic liquid phases for the production of bio-based cyclic carbonates derived from limonene and linseed oil. The support materials and the supported ionic liquid phases (SILPs) were characterized via Fourier transform infrared spectroscopy, thermogravimetric analysis, nitrogen adsorption, X-ray photoelectron spectroscopy, microscopy, and solvent adsorption. The silicon oxycarbide supports were pyrolyzed at 300−900 °C prior to being coated with different tetrabutylammonium halides and further used as heterogeneous catalysts for the formation of cyclic carbonates in batch mode. Excellent selectivities of 97−100% and yields of 53−62% were obtained with tetrabutylammonium chloride supported on the silicon oxycarbides. For comparison, the catalytic performance of commonly employed silica-supported ionic liquids was investigated under the same conditions. The silica-supported species triggered the formation of a diol as a byproduct, leading to a lower selectivity of 87% and a lower yield of 48%. Ultimately, macroporous monolithic SiOC-SILPs with suitable permeability characteristics (k 1 = 10 −11 m 2 ) were produced via photopolymerization-assisted solidification templating and applied for the selective and continuous production of limonene carbonate with supercritical carbon dioxide as the reagent and sole solvent. Constant product output over 48 h without concurrent catalyst leaching was achieved.

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“…Rigid cores in the transition metal complexes generally are formed by heterocyclic units with five-or six-membered rings containing nitrogen, oxygen or sulphur and carbon such as phenothiazine (PTZ) rings that is a complete example with their elements mentioned as shown in Figure 1. On the other hand, this type of rigid structure allows great potential for nonlinear optical materials, [1][2][3] optoelectronics and sensors, [3][4][5][6] photovoltaics, [7][8][9] energy storage, [10][11][12] catalysis, [13][14][15] medical imaging, [16][17][18] antimicrobial 19,20 and antiviral 21 activity and therapy [22][23][24] for academic and technological view.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and electrochemical characterizations of copper complexes with thionine, azure C and azure A

Bayındır,

Ersin,

Nazır

et al. 2024

Applied Organom Chemis

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Structures held together by secondary interactions such as intramolecular or intermolecular hydrogen bonding, electrostatic and π–π interaction without covalent bonds can exhibit new properties such as high orientation, optoelectronics, biocompatibility and reversibility (self‐renewal). Recently, interest has been growing surrounding novel molecules fashioned through non‐covalent interactions. These molecules have garnered attention due to their significant roles in both physical and chemical applications. However, the formation of complexes between cationic phenothiazine derivative dyes, commonly employed in electrochemical studies, and diverse metal groups presents a challenge. Therefore, the existing literature contains only a scant number of studies concerning the formation of phenothiazine complexes with metal salts. In this study, metal complexes of thionine, azure C and azure A with copper(II) chloride were prepared using two steps: dissolving and then slow evaporation of dyes‐copper(II) chloride in acetonitrile. Besides the theoretical computations, thermal, spectral, electrochemical and fluorescence techniques were performed to determine the characteristics of the monoclinic crystals of Cu–dyes complexes. Cl− ion in the dyes and copper(II) chloride conjugated to form [CuCl3]−, then this anion electrostatically bound to cationic phenothiazine ring bond to be phenothiazine+[CuCl3]−. Cu–dye complexes showed interestingly high electron transportation. In addition, prepared Cu–dye complexes have a great potential to be used in optical and spectral applications with extraordinary behaviour of their spectral and fluorescence features.

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Improving the Performance of Supported Ionic Liquid Phase Catalysts for the Ultra-Low-Temperature Water Gas Shift Reaction Using Organic Salt Additives

Cited by 13 publications

References 59 publications

Controllable redox reaction cycle enabled by multifunctional Ru-containing polyoxometalate-based catalysts

Controllable redox reaction cycle enabled by multifunctional Ru-containing polyoxometalate-based catalysts

Silicon Oxycarbide (SiOC)-Supported Ionic Liquids: Heterogeneous Catalysts for Cyclic Carbonate Formation

Spectroscopic and electrochemical characterizations of copper complexes with thionine, azure C and azure A

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