scholarly journals Quantum-Molecular Sieving of Hydrogen Isotopes in Fluorinated Carbon Nanopores

2021 ◽  
Author(s):  
Hironori Sugiyama ◽  
Yoshiyuki Hattori
Keyword(s):  
Hydrogen Isotopes ◽  
Fluorinated Carbon ◽  
Molecular Sieving

Is Kinetic Molecular Sieving of Hydrogen Isotopes Feasible?

2008 ◽  
Vol 112 (30) ◽  
pp. 11421-11426 ◽  
Author(s):  
A. V. Anil Kumar ◽  
Suresh K. Bhatia
Keyword(s):  
Hydrogen Isotopes ◽  
Molecular Sieving

ASSESSING NATAL REGIONS FOR MIGRATORY JUVENILE ACCIPITERS USING HYDROGEN ISOTOPES

2017 ◽  
Author(s):  
Kaitlin M. Sommer ◽  
◽  
Brooke E. Crowley ◽  
Bruce Haak
Keyword(s):  
Hydrogen Isotopes

scholarly journals Gas Permeation Properties of High-Silica CHA-Type Zeolite Membrane

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 249
Author(s):  
Yasuhisa Hasegawa ◽  
Chie Abe ◽  
Mayumi Natsui ◽  
Ayumi Ikeda
Keyword(s):  
Molecular Size ◽  
Gas Permeation ◽  
Zeolite Membrane ◽  
Type Zeolite ◽  
High Silica ◽  
Separation Of Co2 ◽  
Α Al2o3 ◽  
Separation Performances ◽  
Molecular Sieving ◽  
Permeation Properties

The polycrystalline CHA-type zeolite layer with Si/Al = 18 was formed on the porous α-Al2O3 tube in this study, and the gas permeation properties were determined using single-component H2, CO2, N2, CH4, n-C4H10, and SF6 at 303–473 K. The membrane showed permeation behavior, wherein the permeance reduced with the molecular size, attributed to the effect of molecular sieving. The separation performances were also determined using the equimolar mixtures of N2–SF6, CO2–N2, and CO2–CH4. As a result, the N2/SF6 and CO2/CH4 selectivities were as high as 710 and 240, respectively. However, the CO2/N2 selectivity was only 25. These results propose that the high-silica CHA-type zeolite membrane is suitable for the separation of CO2 from CH4 by the effect of molecular sieving.

scholarly journals Molecular sieving using metal–polymer coordination membranes in organic media

2021 ◽  
Author(s):  
Rifan Hardian ◽  
Peter Pogany ◽  
Young Moo Lee ◽  
Gyorgy Szekely
Keyword(s):  
Chemical Resistance ◽  
Organic Media ◽  
Nanofiltration Membranes ◽  
Molecular Sieving ◽  
Metal Polymer

Improving the chemical resistance of membranes without sacrificing their molecular sieving performance is highly challenging. Herein, a novel scalable methodology was developed for fabricating solvent-resistant nanofiltration membranes based on metal–polymer...

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