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Etxeberria Benavides, M. (author), Johnson, Timothy (author), Cao, Shuai (author), Zornoza, Beatriz (author), Coronas, Joaquín (author), Liu, X. (author), Andres Garcia, E. (author), Kapteijn, F. (author), Gascon, Jorge (author)High performance and commercially attractive mixed-matrix membranes were developed for H<sub>2</sub>/CO<sub>2</sub> separation via a scalable hollow fiber spinning process. Thin (~300 nm) and defect-free selective layers were successfully created with a uniform distribution of the nanosized (~60 nm) zeolitic-imidazole framework (ZIF-8) filler...journal article 2020
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Kapteijn, F. (author), Moulijn, J.A. (author)In this perspective paper a brief overview is given of the past developments in the field of structured catalysts and reactors, the potential for process intensification, energy and materials efficiency. Current exciting new developments for demanding processes are highlighted and directions indicated that contribute to a future sustainable...journal article 2020
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Vollmer, I. (author), Mondal, A. (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Kapteijn, F. (author), Gascon, Jorge (author)The catalytic performance of the bifunctional catalyst Mo/HZSM-5 for methane dehydroaromatization (MDA) depends on the Mo dispersion and on zeolite acidity. Here we separately quantify the effect of dispersion and the effect of acidity on aromatic yields and coke selectivity. Also, the effect of porosity on the same is quantitatively...journal article 2019
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Etxeberria Benavides, M. (author), Karvan, Oguz (author), Kapteijn, F. (author), Gascon, Jorge (author), David, Oana (author)The elimination of the additional defect healing post‐treatment step in asymmetric hollow fiber manufacturing would result in a significant reduction in membrane production cost. However, obtaining integrally skinned polymeric asymmetric hollow fiber membranes with an ultrathin and defect‐free selective layer is quite challenging. In this...journal article 2019
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Pereira, Joana P.C. (author), Overbeek, W.J.M. (author), Gudiño Reyes, N.E. (author), Andres Garcia, E. (author), Kapteijn, F. (author), van der Wielen, L.A.M. (author), Straathof, Adrie J.J. (author)Biobased 2-butanol offers high potential as biofuel, but its toxicity toward microbial hosts calls for efficient techniques to alleviate product inhibition in fermentation processes. Aiming at the selective recovery of 2-butanol, the feasibility of a process combining in situ vacuum stripping followed by vapor adsorption has been assessed...journal article 2019
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Vollmer, I. (author), Kosinov, N. (author), Szécsényi, Ágnes (author), Li, G. (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Gurinov, Andrei (author), Ould-Chikh, Samy (author), Aguilar-Tapia, Antonio (author), Hazemann, Jean Louis (author), Pidko, E.A. (author), Hensen, Emiel (author), Kapteijn, F. (author), Gascon, Jorge (author)The active sites on the methane dehydroaromatization (MDA) catalyst Mo/HZSM-5 are very hard to characterize, because they are present in various geometries and sizes and only form under reaction conditions with methane at 700 °C. To address these issues an experimental strategy is presented that enables distinguishing different active sites...journal article 2019
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Schneider, Daniel (author), Kapteijn, F. (author), Valiullin, Rustem (author)Kinetic Monte Carlo (KMC) simulations are used to study transport of guest molecules in a two-phase medium in which the minority phase forms closed regions. This type of model system resembles compositions of mixed-matrix membranes (MMMs) made of a matrix and imbedded filler particles with different permeabilities. Based on an ideal filler...journal article 2019
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Graf, Stefan (author), Redder, Florian (author), Bau, Uwe (author), de Lange, M.F. (author), Kapteijn, F. (author), Bardow, André (author)The metal–organic frameworks (MOFs) MIL-101(Cr) and NH<sub>2</sub>-MIL-125 offer high adsorption capacities and have therefore been suggested for sustainable energy conversion in adsorption chillers. Herein, these MOFs are benchmarked to commercial Siogel. The evaluation method combines small-scale experiments with dynamic modeling of full...journal article 2019
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Poursaeidesfahani, A. (author), Andres Garcia, E. (author), de Lange, M.F. (author), Torres-Knoop, Ariana (author), Rigutto, Marcello (author), Nair, Nitish (author), Kapteijn, F. (author), Gascon, Jorge (author), Dubbeldam, D. (author), Vlugt, T.J.H. (author)A mathematical model is used to predict adsorption isotherms from experimentally measured breakthrough curves. Using this approach, by performing only breakthrough experiments for a mixture of two (or more) components, one can obtain pure component adsorption isotherms up to the pressure of the experiment. As a case study, the adsorption of...journal article 2019
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Andres Garcia, E. (author), Dikhtiarenko, Alla (author), Fauth, Francois (author), Silvestre-Albero, Joaquin (author), Ramos-Fernández, Enrique V. (author), Gascon, Jorge (author), Corma, Avelino (author), Kapteijn, F. (author)Clathrates are well-known compounds whose low thermal stability makes them extremely rare and appreciated. Although their formation mechanism is still surrounded by many uncertainties, these ice-like structures have the potential to be an alternative for transport and storage of different gases, especially methane. For the formation of...journal article 2019
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Karakiliç, Pelin (author), Toyoda, Ryo (author), Kapteijn, F. (author), Nijmeijer, Arian (author), Winnubst, Louis (author)The transformation of microporous, amorphous silica membranes into b-oriented silicalite-1 (MFI) zeolite layers via in-situ crystallisation was investigated. The effect of synthesis parameters, such as the type and concentration of the silica precursor, crystallisation time and temperature, on the morphology of silicalite-1 (MFI) zeolite...journal article 2019
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Andres Garcia, E. (author), López-Cabrelles, Javier (author), Oar-Arteta Gonzalez, L. (author), Roldan Martinez, B. (author), Cano Padilla, M. (author), Gascon, Jorge (author), Mínguez Espallargas, Guillermo (author), Kapteijn, F. (author)Separation of propylene/propane is one of the most challenging and energy consuming processes in the chemical industry. Propylene demand is increasing and a 99.5% purity is required for industrial purposes. Adsorption based solutions are the most promising alternatives to improve the economical/energetic efficiency of the process. Zeolitic...journal article 2019
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Shan, M. (author), Liu, X. (author), Wang, X. (author), Liu, Z. (author), Iziyi, H. (author), Ganapathy, S. (author), Gascon, Jorge (author), Kapteijn, F. (author)Membranes with high selectivity and permeance are needed to reduce energy consumption in hydrogen purification and pre-combustion CO <sub>2</sub> capture. Polybenzimidazole (PBI) is one of the leading membrane materials for this separation. In this study, we present superior novel supported PBI (poly(p-phenylene benzobisimidazole), PBDI)...journal article 2019
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Wang, X. (author), Shan, M. (author), Liu, X. (author), Wang, M. (author), Doherty, Cara M. (author), Osadchii, D. (author), Kapteijn, F. (author)Increasing helium use in research and production processes necessitates separation techniques to secure sufficient supply of this noble gas. Energy-efficient helium production from natural gas is still a big challenge. Membrane gas separation technology could play an important role. Herein, a novel poly(p-phenylene benzobisimidazole) (PBDI)...journal article 2019
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Wang, R. (author), Kapteijn, F. (author), Gascon, Jorge (author)The electrochemical reduction of CO<sub>2</sub> holds great promise for lowering the concentration of CO<sub>2</sub> in the Earth′s atmosphere. However, several challenges have hindered the commercialization of this technology, including energy efficiency, the solubility of CO<sub>2</sub> in the aqueous phase, and electrode stability. In this...review 2019
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Lee, Ji Sun (author), Yoon, Ji Woong (author), Mileo, Paulo G.M. (author), Cho, Kyung Ho (author), Park, Jaedeuk (author), Kim, Kiwoong (author), Kim, Hyungjun (author), de Lange, M.F. (author), Kapteijn, F. (author)The development of new water adsorbents that are hydrothermally stable and can operate more efficiently than existing materials is essential for the advancement of water adsorption-driven chillers. Most of the existing benchmark materials and related systems in this field suffer from clear limitations that must be overcome to meet global...journal article 2019
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Sun, X. (author), Wang, R. (author), Ould-Chikh, Samy (author), Osadchii, D. (author), Li, G. (author), Aguilar, Antonio (author), Hazemann, Jean louis (author), Kapteijn, F. (author), Gascon, Jorge (author)Mesoporous nitrogen-doped carbon nanoparticles with atomically dispersed iron sites (named mesoNC-Fe) are synthesized via high-temperature pyrolysis of an Fe containing ZIF-8 MOF. Hydrolysis of tetramethyl orthosilicate (TMOS) in the MOF framework prior to pyrolysis plays an essential role in maintaining a high surface area during the...journal article 2019
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Wang, R. (author), Haspel, Henrik (author), Pustovarenko, Alexey (author), Dikhtiarenko, A. (author), Osadchii, D. (author), Ma, M. (author), Smith, W.A. (author), Kapteijn, F. (author), Gascon, Jorge (author)We report the preparation and electrocatalytic performance of silver-containing gas diffusion electrodes (GDEs) derived from a silver coordination polymer (Ag-CP). Layer-by-layer growth of the Ag-CP onto porous supports was applied to control Ag loading. Subsequent electro-decomposition of the Ag-CP resulted in highly selective and efficient...journal article 2019
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Wang, Y. (author), Kapteijn, F. (author), Makkee, M. (author)In this study, the role of the noble metals Pt and Rh (0.5 wt.%) for the selective reduction of NO into N<sub>2</sub> is evaluated by the transient TAP technique and in-situ spectroscopy using a commercial stable ceria support (denoted as CZ) and applying isotopically labelled <sup>15</sup>NO and <sup>18</sup>O<sub>2</sub>. The transient...journal article 2018
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Liu, X. (author), Wang, X. (author), Bavykina, A.V. (author), Chu, L. (author), Shan, M. (author), Sabetghadam, Anahid (author), Miro, H. (author), Kapteijn, F. (author), Gascon, Jorge (author)The preparation and the performance of mixed matrix membranes based on metal-organic polyhedra (MOPs) are reported. MOP fillers can be dispersed as discrete molecular units (average 9 nm in diameter) when low filler cargos are used. In spite of the low doping amount (1.6 wt %), a large performance enhancement in permeability, aging resistance...journal article 2018