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Luan, Liping (author), Shi, Puxin (author), Wang, Zhi (author), Kapteijn, F. (author), Liu, Xinlei (author)
Novel membrane materials for H<sub>2</sub> separation are wanted. How to overcome the “trade-off” between membrane permeability and selectivity is a tough challenge. Here we report new random organic framework membranes with benzimidazole and imine linkages to form hierarchical channels. Both high H<sub>2</sub>-selective and fast H<sub>2</sub...
journal article 2024
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Liu, C. (author), Uslamin, E. (author), Pidko, E.A. (author), Kapteijn, F. (author)
Monitoring complex catalytic pathways under industrially-relevant conditions is one of the key challenges in catalysis chemistry and technology. Herewith we describe a direct technique called ‘fast scanning-pulse analysis’ (FASPA) that allows the direct characterization and detailed kinetic analysis of intimately interweaved catalytic...
journal article 2023
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Liu, C. (author), Uslamin, E. (author), Pidko, E.A. (author), Kapteijn, F. (author)
The nature of hydrocarbon pool (HCP) intermediates in the methanol-to-hydrocarbons (MTH) process has been thoroughly investigated, especially for BEA- and CHA-type zeolite catalysts like H-β and H-SAPO-34. Herein, we further reveal the dynamic mechanistic details of the MTH process over the H-ZSM-5 catalyst at 400 °C, based on the dual-cycle...
journal article 2023
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Zhang, Bo (author), Zhu, Zerui (author), Wang, Xuerui (author), Liu, X. (author), Kapteijn, F. (author)
Metal–organic frameworks (MOFs) are superior sorbents for water adsorption-based applications. The unique step-like water isotherm at a MOF-specific relative pressure allows easy loading and regeneration over a small range of temperature and pressure conditions. With good hydrothermal stability and cyclic durability, it stands out over...
review 2023
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Liu, C. (author), Uslamin, E. (author), Khramenkova, E. (author), Sireci, Enrico (author), Ouwehand, Lucas T.L.J. (author), Ganapathy, S. (author), Kapteijn, F. (author), Pidko, E.A. (author)
The production of valuable aromatics and the rapid catalyst deactivation due to coking are intimately related in the zeolite-catalyzed aromatization reactions. Here, we demonstrate that these two processes can be decoupled by promoting the Ga/HZSM-5 aromatization catalyst with Ca. The resulting bimetallic catalysts combine high selectivity to...
journal article 2022
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Liu, C. (author), Uslamin, E. (author), van Vreeswijk, Sophie H. (author), Yarulina, Irina (author), Ganapathy, S. (author), Weckhuysen, Bert M. (author), Kapteijn, F. (author), Pidko, E.A. (author)
Identification of the catalyst characteristics correlating with the key performance parameters including selectivity and stability is key to the rational catalyst design. Herein we focused on the identification of property-performance relationships in the methanol-to-olefin (MTO) process by studying in detail the catalytic behaviour of MFI,...
journal article 2022
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Cong, Shenzhen (author), Yuan, Ye (author), Wang, Jixiao (author), Wang, Zhi (author), Kapteijn, F. (author), Liu, X. (author)
New membrane materials with excellent water permeability and high ion rejection are needed. Metal-organic frameworks (MOFs) are promising candidates by virtue of their diversity in chemistry and topology. In this work, continuous aluminum MOF-303 membranes were prepared on α-Al2O3 substrates via an in situ hydrothermal synthesis method. The...
journal article 2021
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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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Liu, X. (author), Wang, X. (author), Kapteijn, F. (author)
The steep stepwise uptake of water vapor and easy release at low relative pressures and moderate temperatures together with high working capacities make metal-organic frameworks (MOFs) attractive, promising materials for energy efficient applications in adsorption devices for humidity control (evaporation and condensation processes) and heat...
review 2020
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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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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
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Shan, M. (author), Liu, X. (author), Wang, X. (author), Yarulina, I. (author), Seoane, Beatriz (author), Kapteijn, F. (author), Gascon, Jorge (author)
The development of new membranes with high H<sub>2</sub> separation performance under industrially relevant conditions (high temperatures and pressures) is of primary importance. For instance, these membranes may facilitate the implementation of energy-efficient precombustion CO<sub>2</sub> capture or reduce energy intensity in other...
journal article 2018
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Sabetghadam, Anahid (author), Liu, X. (author), Benzaqui, Marvin (author), Gkaniatsou, Effrosyni (author), Orsi, Angelica (author), Lozinska, Magdalena M. (author), Sicard, Clemence (author), Johnson, Timothy (author), Steunou, Nathalie (author), Wright, Paul A. (author), Serre, Christian (author), Gascon, Jorge (author), Kapteijn, F. (author)
To gain insight into the influence of metal-organic framework (MOF) fillers and polymers on membrane performance, eight different composites were studied by combining four MOFs and two polymers. MOF materials (NH<sub>2</sub>-MIL-53(Al), MIL-69(Al), MIL-96(Al) and ZIF-94) with various chemical functionalities, topologies, and dimensionalities...
journal article 2018
document
Shan, M. (author), Seoane, Beatriz (author), Pustovarenko, Alexey (author), Wang, X. (author), Liu, X. (author), Yarulina, I. (author), Abou-Hamad, Edy (author), Kapteijn, F. (author), Gascon, Jorge (author)
The performance of mixed-matrix membranes (MMMs) based on Matrimid<sup>®</sup> and benzimidazole-linked polymers (BILPs) have been investigated for the separation CO<sub>2</sub>/N<sub>2</sub> and the dependency on the filler porosity. BILPs with two different porosities (BILP-101 and RT-BILP-101) were synthesized through controlling the...
journal article 2018
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Sabetghadam, A. (author), Liu, X. (author), Orsi, Angelica F. (author), Lozinska, Magdalena M. (author), Johnson, Timothy (author), Jansen, K.M.B. (author), Wright, Paul A. (author), Carta, Mariolino (author), McKeown, Neil B. (author), Kapteijn, F. (author), Gascon, Jorge (author)
Membrane separation for gas purification is an energy-efficient and environment-friendly technology. However, the development of high performance membranes is still a great challenge. In principle, mixed matrix membranes (MMMs) have the potential to overcome current materials limitations, but in practice there is no straightforward method to...
journal article 2018
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