H2 Storage at Ambient Temperature using Cu(I)-SSZ-39

2019-06-23
İpek Torun, Bahar
Altiparmak, Ismihan
Üner, Deniz
Hydrogen storage capacities of transition metal cation exchanged zeolites; i.e., Cu(I)-SSZ-39 and Cu(I)-US-Y, were tested at temperatures between 279 K and 304 K and at pressures up to 1 bar. The hydrogen capacity values were higher for Cu(I)-exchanged SSZ-39, which has smaller pore openings and a cage when compared to a large-pore zeolite: Cu(I)-US-Y. Hydrogen capacities at 1 bar per gram of zeolites were found as 83 μmol g-1 (0.02 wt. %) at 278 K and 60 μmol g-1 at 296 K on Cu(I)-SSZ-39 and 35 μmol g-1 (0.007 wt. %) at 278 K and 23 μmol g-1 at 296 K on Cu(I)-US-Y. The isosteric heat of H2 adsorption values at temperatures between 279 K and 304 K were calculated to be 48–80 kJ/ mol for Cu(I)-SSZ-39 and 15–22 kJ/mol for Cu(I)-US-Y, both being much larger than those observed for other physisorption materials such as metal organic frameworks.
Citation Formats
B. İpek Torun, I. Altiparmak, and D. Üner, “H2 Storage at Ambient Temperature using Cu(I)-SSZ-39,” Edirne, Türkiye, 2019, p. 146, Accessed: 00, 2021. [Online]. Available: https://drive.google.com/file/d/1NUOoiqZnmfvEaHHQ_B1RDR-mdCOXvoAV/view.