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Van Miltenburg, A. (author), Gascon, J. (author), Zhu, W. (author), Kapteijn, F. (author), Moulijn, J.A. (author)The adsorption of propylene and propane on zeolite NaX with and without a saturated (36 wt%) amount of CuCl have been investigated. The single component adsorption isotherms could be well described with a Dual-Site Langmuir model. The dispersion of CuCl results in a decrease of the maximum adsorption capacity of the zeolite for both components....journal article 2008
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Gascon, J. (author), Kapteijn, F. (author)The present invention relates to separation of olefin/paraffin mixtures. The invention especially relates to the use of a Li-Faujasite, wherein the mixtures are comprised of any of the groups of CxH2x/CxH2x+2, wherein x = 2, 3 or 4, in particular a mixture of ethylene/ethane, propylene/propane, or butylene/butane. The invention further relates...patent 2009
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Sartipi, S. (author), Parashar, K. (author), Makkee, M. (author), Gascon, J. (author), Kapteijn, F. (author)We report the combination of Fischer–Tropsch catalyst with acid functionality in one single catalyst particle. The resulting bifunctional catalyst is capable of producing gasoline range hydrocarbons from synthesis gas in one catalytic step with outstanding activities and selectivities.journal article 2012
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- Zornoza, B. (author), Rodenas, T. (author), Tellez, C. (author), Coronas, J. (author), Gascon, J. (author), Kapteijn, F. (author) journal article 2012
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Rodenas, T. (author), Van Dalen, M. (author), Garcia-Perez, E. (author), Serra-Crespo, P. (author), Zornoza, B. (author), Kapteijn, F. (author), Gascon, J. (author)Mixed matrix membranes (MMMs) composed of metal organic framework (MOF) fi llers embedded in a polymeric matrix represent a promising alternative for CO 2 removal from natural gas and biogas. Here, MMMs based on NH 2 -MIL-53(Al) MOF and polyimide are successfully synthesized with MOF loadings up to 25 wt% and different thicknesses. At 308 K and ...journal article 2013
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Juan-Alcaniz, J. (author), Gielisse, R. (author), Lago, A.B. (author), Ramos-Fernandez, E.V. (author), Serra-Crespo, P. (author), Devic, T. (author), Guillou, N. (author), Serre, C. (author), Kapteijn, F. (author), Gascon, J. (author)In this work, the inclusion of free sulfonic acid groups in highly stable MOFs is explored. The synthesized catalysts have been applied in a model esterification reaction. Two metal organic frameworks bearing sulfonic acid moieties are investigated: HSO3-MIL-101(Cr) synthesized following different approaches and a new structure based on HSO3-bdc...journal article 2013
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Goesten, M.G. (author), Kapteijn, F. (author), Gascon, J. (author)Reticular design is a highly attractive concept, but coordination chemistry around the tectonic units of metal– organic frameworks (MOFs) and additional interplay with anionic and solvent species provide for dazzling complexity that effectively rules out structure prediction. We can however study the chemistry around pre-existing clusters, and...journal article 2013
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Nasalevich, M.A. (author), Goesten, M.G. (author), Savenije, T.J. (author), Kapteijn, F. (author), Gascon, J. (author)NH2-MIL-125(Ti) has been post-synthetically functionalized with dye-like molecular fragments. The new material (methyl red-MIL- 125(Ti)) exhibits improved light absorption over a wide range of the visible spectrum, and shows enhanced photocatalytic oxidation activity under visible light illumination. The consequences of functionalization and the...journal article 2013
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Sartipi, S. (author), Alberts, M. (author), Santos, V.P. (author), Nasalevich, M. (author), Gascon, J. (author), Kapteijn, F. (author)Mesoporous H-ZSM-5 (mesoH-ZSM-5) was used as a carrier for a series of bifunctional Co-based catalysts for Fischer–Tropsch synthesis with ZrO2 and/or Ru added as promoters. The reducibility of the catalysts was studied in detail by using temperature-programmed reduction and X-ray absorption spectroscopy. A comparison of the catalytic performance...journal article 2013
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Sartipi, S. (author), Jansma, H. (author), Bosma, D. (author), Boshuizen, B. (author), Makkee, M. (author), Gascon, J. (author), Kapteijn, F. (author)Design and operation of a “six-flow fixed-bed microreactor” setup for Fischer-Tropsch synthesis (FTS) is described. The unit consists of feed and mixing, flow division, reaction, separation, and analysis sections. The reactor system is made of five heating blocks with individual temperature controllers, assuring an identical isothermal zone of...journal article 2013
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Sartipi, S. (author), Makkee, M. (author), Kapteijn, F. (author), Gascon, J. (author)The combination of acidic zeolites and Fischer–Tropsch synthesis (FTS) catalysts for one-step production of liquid fuels from syngas is critically reviewed. Bifunctional systems are classified by the proximity between FTS and acid functionalities on three levels: reactor, catalyst particle, and active phase. A thorough analysis of the published...journal article 2014
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Serra-Crespo, P. (author), Dikhtiarenko, A. (author), Stavitski, E. (author), Juan-Alcañiz, J. (author), Kapteijn, F. (author), Coudert, F.X. (author), Gascon, J. (author)We report a series of powder X-ray diffraction experiments performed on the soft porous crystals MIL-53(Al) and NH2-MIL-53(Al) in a diamond anvil cell under different pressurization media. Systematic refinements of the obtained powder patterns demonstrate that these materials expand along a specific direction while undergoing total volume...journal article 2014
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Nasalevich, M.A. (author), Van der Veen, M. (author), Kapteijn, F. (author), Gascon, J. (author)The use of metal organic frameworks (MOFs) as heterogeneous photocatalysts is critically reviewed. First we revisit the general assumption of MOFs behaving truly as semiconductors, demonstrating that such semiconducting behaviour only occurs in a very limited subset of materials. Further, the main approaches for efficient light harvesting and...journal article 2014
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Skupien, E. (author), Berger, R.J. (author), Santos, V.P. (author), Gascon, J. (author), Makkee, M. (author), Kreutzer, M.T. (author), Kooyman, P.J. (author), Moulijn, J.A. (author), Kapteijn, F. (author)Benzyl alcohol oxidation was carried out in toluene as solvent, in the presence of the potentially inhibiting oxidation products benzaldehyde and benzoic acid. Benzoic acid, or a product of benzoic acid, is identified to be the inhibiting species. The presence of a basic potassium salt (K2CO3 or KF) suppresses this inhibition, but promotes the...journal article 2014
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García-Pérez, E. (author), Serra-Crespo, P. (author), Hamad, S. (author), Kapteijn, F. (author), Gascon, J. (author)Simulation of gas adsorption in flexible porous materials is still limited by the slow progress in the development of flexible force fields. Moreover, the high computational cost of such flexible force fields may be a drawback even when they are fully developed. In this work, molecular simulations of gas adsorption and diffusion of carbon...journal article 2014
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De Lange, M.F. (author), Ottevanger, C.P. (author), Wiegman, M. (author), Vlugt, T.J.H. (author), Gascon, J. (author), Kapteijn, F. (author)Several Al-based MOFs of the CAU family have been investigated for application in the adsorption driven allocation of heat and cold. The special water adsorption behaviour of CAU-10-H makes it ideal for application in adsorption driven heat pumps and chillers. For increased performance, CAU-10-H crystals have been grown directly on both ?...journal article 2014
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Seoane, B. (author), Dikhtiarenko, A. (author), Mayoral, A. (author), Tellez, C. (author), Coronas, J. (author), Kapteijn, F. (author), Gascon, J. (author)The effect of synthesis pH and H2O/EtOH molar ratio on the textural properties of different aluminium trimesate metal organic frameworks (MOFs) prepared in the presence of the well-known cationic surfactant cetyltrimethylammonium bromide (CTAB) at 120 °C was studied with the purpose of obtaining a MOF with hierarchical pore structure. Depending...journal article 2015
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Seoane, B. (author), Coronas, J. (author), Gascon, I. (author), Benavides, M.E. (author), Karvan, O. (author), Caro, J. (author), Kapteijn, F. (author), Gascon, J. (author)The field of metal–organic framework based mixed matrix membranes (M4s) is critically reviewed, with special emphasis on their application in CO2 capture during energy generation. After introducing the most relevant parameters affecting membrane performance, we define targets in terms of selectivity and productivity based on existing literature...journal article 2015
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Al-Kutubi, H. (author), Dikhtiarenko, A. (author), Zafarani, H.R. (author), Sudhölter, E.J.R. (author), Gascon, J. (author), Rassaei, L. (author)In this work, thin films of the well-known metal–organic framework ZIF-8 were formed on zinc oxide nanorods through the reaction with 2-methyl-imidazole solution (Hmim). Deposition of a thin film of the linker solution allows the underlying zinc oxide nanorod morphology to be preserved, resulting in the facile and precise formation of...journal article 2015
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Hernandez-Mejia, C. (author), Gnanakumar, E.S. (author), Olivos-Suarez, A. (author), Gascon, J. (author), Greer, H.F. (author), Zhou, W. (author), Rothenberg, G. (author), Shiju, N.R. (author)Effective dispersion of the active species over the support almost always guarantees high catalytic efficiency. To achieve this high dispersion, a favourable interaction of the active species with the support is crucial. We show here that the crystal structure of the titania support determines the interaction and consequently the nature of...journal article 2015
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