Jonas Hedlund
Luleå University of Technology
10 Papers
65 Citations
Jonas Hedlund is an academic researcher from Luleå University of Technology. The author has contributed to research in topics: Molecular sieve & Membrane. The author has an hindex of 7, co-authored 10 publications.
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Papers
A Uniformly Oriented MFI Membrane for Improved CO2 Separation
TL;DR: A facile method for preparing silica MFI membranes in fluoride media on a graded alumina support is reported, which showed a separation selectivity of 109 for CO2/H2 mixtures and a CO2 permeance of 51×10(-7) mol m(-2) s(-1) Pa (-1) at -35 °C, making it promising for practical CO2 separation from mixtures.
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Application of the seed-film method for the preparation of structured molecular sieve catalysts
Johan Sterte,Jonas Hedlund,Derek Creaser,Olov G.W. Öhrman,Wang Zheng,Magdalena Lassinantti,Qinghua Li,Fredrik Jareman +7 more
TL;DR: In this article, the seed-film method has been applied for the preparation of various materials of potential interest as structured molecular sieve catalysts, such as ceramic foams, α-alumina pellets and porous alumina supports as well as various metal surfaces.
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A simple method for blocking defects in zeolite membranes
Somayeh Karimi,Somayeh Karimi,Danil Korelskiy,Liang Yu,Johanne Mouzon,Abbas Ali Khodadadi,Yadollah Mortazavi,Mohammad Esmaeili,Jonas Hedlund +8 more
TL;DR: In this article, a simple and effective method for blocking defects in ultra-thin MFI zeolite membranes has been developed based on deposition of an ultra thin (~15nm) layer of amorphous silica on the top surface of the membrane and permporometry data indicated that the amount of defects, especially defects larger than 4nm, in the membranes was significantly reduced after the modification.
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Adsorption of Butanol and Water Vapors in Silicalite-1 Films with a Low Defect Density
Amirfarrokh Farzaneh,Ming Zhou,Oleg N. Antzutkin,Zoltán Bacsik,Jonas Hedlund,Allan Holmgren,Mattias Grahn +6 more
TL;DR: The results show that silicalite-1 films prepared in a F- medium with a low density of defects and external area are very promising for the selective recovery of 1-butanol from aqueous solutions.
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An experimental study of micropore defects in MFI membranes
TL;DR: In this paper, two ultra-thin MFI membranes, prepared using hydroxide and fluoride ions as mineralizing agents, respectively, were carefully examined by permporometry and it was demonstrated that the micropore defects determined by perm-porometry were most likely open grain boundaries.
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