Gradual Disordering of LTA Zeolite for Continuous Tuning of the Molecular Sieving Effect

Cited 6 time in webofscience Cited 0 time in scopus
  • Hit : 403
  • Download : 0
The "molecular sieving effect" of zeolites has enabled size-selective adsorption and catalysis. Although a large variety of zeolites have been developed thus far, it is still challenging to find zeolites that can separate molecules such as CO2, N-2, CH4, and small organics that have kinetic diameters all closely located in the range of 0.3 to 0.4 nm. Here we demonstrate that controlled collapse or atomic disordering of NaA zeolite can systematically narrow the effective pore size below 0.4 nm and thus "tune" the molecular sieving effect. As the zeolite is gradually disordered, the adsorption amounts for all gas molecules decrease; however, larger molecules show a much faster decrease than that of the smaller ones. Consequently, the adsorption selectivities could be remarkably enhanced for various gas pairs.
Publisher
AMER CHEMICAL SOC
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

SEPARATION; ADSORPTION; SHAPE; TRANSFORMATION; MORPHOLOGY; CATALYSIS; MIXTURES; CRYSTAL; VAPOR

Citation

JOURNAL OF PHYSICAL CHEMISTRY C, v.121, no.12, pp.6807 - 6812

ISSN
1932-7447
DOI
10.1021/acs.jpcc.7b00724
URI
http://hdl.handle.net/10203/223709
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 6 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0