Gradual Disordering of LTA Zeolite for Continuous Tuning of the Molecular Sieving Effect
- Authors
- Kim, Hyeonbin; Cho, Hae Sung; Kim, Chaehoon; Choi, Minkee
- Issue Date
- Mar-2017
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY C, v.121, no.12, pp 6807 - 6812
- Pages
- 6
- Journal Title
- JOURNAL OF PHYSICAL CHEMISTRY C
- Volume
- 121
- Number
- 12
- Start Page
- 6807
- End Page
- 6812
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/64038
- DOI
- 10.1021/acs.jpcc.7b00724
- ISSN
- 1932-7447
1932-7455
- Abstract
- 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.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/64038)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.