Journal
MATERIALS LETTERS
Volume 324, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2022.132680
Keywords
Hydrogen separation; Zeolite; Molecular sieve membrane; Ion exchange
Funding
- Chongqing Research Program of Basic Research and Frontier Technol- ogy [cstc2018jcyjAX0431]
Ask authors/readers for more resources
The hydrogen separation performance of molecular sieving membranes was significantly enhanced through ion exchange, showing great potential for application in hydrogen purification.
Selective separation of gaseous hydrogen from a mixed gas by zeolite molecular sieving membrane have advantages in continuous long-term industrial reprocessing due to their excellent thermal stability and chemical inertness. Herein, we report the synthesis of Linde Type A (LTA) zeolite molecular sieving membranes with considerably enhanced hydrogen separation performance via ion exchange with cesium cations. Because the sodium ions in Na-LTA framework replaced by cesium ions make the pore size narrower, the cation-exchanged membranes show large increase in hydrogen selective separation performance. The separation factors of Cs-LTA membrane of H-2 with CO2, CH4 and C3H8 are 8, 23.4 and 176.8 respectively, exceeding 5.9, 3.3, and 128.5 for the original Na-LTA membrane. The results indicate that the Cs-LTA membrane holds great potential for application in H-2 purification.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available