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157 results on '"Sudhölter, Ernst J.R."'

31. Melamine-Based Microporous Organic Framework Thin Films on an Alumina Membrane for High-Flux Organic Solvent Nanofiltration

Author

Amirilargani, Mohammad, Yokota, Giovana N., Vermeij, Gijs H., Merlet, Renaud B., Delen, Guusje, Mandemaker, Laurens D.B., Weckhuysen, Bert M., Winnubst, Louis, Nijmeijer, Arian, de Smet, Louis C.P.M., Sudhölter, Ernst J.R., Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis, Inorganic Membranes, Sub Inorganic Chemistry and Catalysis, and Inorganic Chemistry and Catalysis

Subjects
Materials science, General Chemical Engineering, UT-Hybrid-D, 02 engineering and technology, 010402 general chemistry, organic solvent nanofiltration, 01 natural sciences, chemistry.chemical_compound, Materials Science(all), Energy(all), Environmental Chemistry, General Materials Science, Ceramic, Thin film, polymers, chemistry.chemical_classification, microporous materials, Communication, Organic Chemistry, Microporous material, Polymer, 021001 nanoscience & nanotechnology, Organische Chemie, Communications, 0104 chemical sciences, porous organic frameworks, Solvent, General Energy, Membrane, Chemical engineering, chemistry, membranes, visual_art, visual_art.visual_art_medium, Chemical Engineering(all), Nanofiltration, 0210 nano-technology, Melamine
Abstract

Microporous polymer frameworks have attracted considerable attention to make novel separation layers owing to their highly porous structure, high permeability, and excellent molecular separation. This study concerns the fabrication and properties of thin melamine‐based microporous polymer networks with a layer thickness of around 400 nm, supported on an α‐alumina support and their potential use in organic solvent nanofiltration. The modified membranes show excellent solvent purification performances, such as n‐heptane permeability as high as 9.2 L m−2 h−1 bar −1 in combination with a very high rejection of approximately 99 % for organic dyes with molecular weight of ≥457 Da. These values are higher than for the majority of the state‐of‐the‐art membranes. The membranes further exhibit outstanding long‐term operation stability. This work significantly expands the possibilities of using ceramic membranes in organic solvent nanofiltration., Let's make it thin: High‐flux organic solvent nanofiltration membranes with enhanced separation performance are manufactured by fabricating a thin layer of microporous polymer networks composed of melamine and bis‐aldehyde on top of an α‐alumina ceramic support. The long‐term operation stability of the developed membrane is assessed and compared with state‐of‐the‐art membranes, thereby confirming its superior behavior.

Published
2019

32. List of Contributors

Author

ARNOLD, DENNIS P., primary, BARENTSEN, HELMA M., additional, BIJWE, J., additional, BLSQUERT, J., additional, BOTTA, CHIARA, additional, CAMERON, DAVID, additional, DEVADOSS, CHELLADURAI, additional, DIJK, MARINUS VAN, additional, FAHIM, M., additional, FERRO, DINO R., additional, GARCIA-BELMONTE, G., additional, HAAS, MATTHIJS P. DE, additional, HOOFMAN, ROMANO J.O.M., additional, IWAMOTO, MLTSUMASA, additional, JLANG, JLANZHUANG, additional, KASUGA, KUNINOBU, additional, NALWA, HARI SINGH, additional, NICOLAU, MÓNICA, additional, SCHLETTWEIN, DERCK, additional, SIEBBELES, LAURENS D.A., additional, SILVESTRO, GIUSEPPE DI, additional, SUDHÖLTER, ERNST J.R., additional, TORRE, GEMA DE LA, additional, TORRES, TOMÁS, additional, TUBINO, RICCARDO, additional, ULLMANN, G. MATTHIAS, additional, WARMAN, JOHN M., additional, and ZUILHOF, HAN, additional

Published
2001
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33. Polydiacetylenes

Author

Zuilhof, Han, primary, Barentsen, Helma M., additional, van Dijk, Marinus, additional, Sudhölter, Ernst J.R., additional, Hoofman, Romano J.O.M., additional, Siebbeles, Laurens D.A., additional, de Haas, Matthijs P., additional, and Warman, John M., additional

Published
2001
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37. Nanosheets of Nonlayered Aluminum Metal–Organic Frameworks through a Surfactant-Assisted Method

Author

Pustovarenko, Alexey, Goesten, Maarten G., Sachdeva, Sumit, Shan, Meixia, Amghouz, Zakariae, Belmabkhout, Youssef, Dikhtiarenko, Alla, Rodenas, Tania, Keskin, Damla, Voets, Ilja K., Weckhuysen, Bert M., Eddaoudi, Mohamed, de Smet, Louis C.P.M., Sudhölter, Ernst J.R., Kapteijn, Freek, Seoane, Beatriz, Gascon, Jorge, Sub Inorganic Chemistry and Catalysis, and Inorganic Chemistry and Catalysis

Subjects
crystal design, chemical sensing, molecular recognition, gas separation, metal–organic framework nanolamellae
Abstract

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. During the last decade, the synthesis and application of metal-organic framework (MOF) nanosheets has received growing interest, showing unique performances for different technological applications. Despite the potential of this type of nanolamellar materials, the synthetic routes developed so far are restricted to MOFs possessing layered structures, limiting further development in this field. Here, a bottom-up surfactant-assisted synthetic approach is presented for the fabrication of nanosheets of various nonlayered MOFs, broadening the scope of MOF nanosheets application. Surfactant-assisted preorganization of the metallic precursor prior to MOF synthesis enables the manufacture of nonlayered Al-containing MOF lamellae. These MOF nanosheets are shown to exhibit a superior performance over other crystal morphologies for both chemical sensing and gas separation. As revealed by electron microscopy and diffraction, this superior performance arises from the shorter diffusion pathway in the MOF nanosheets, whose 1D channels are oriented along the shortest particle dimension.

Published
2018

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