Abstract
Hydrogen adsorption capacities in zeolite Y and its nickel, palladium, rhodium and ruthenium exchanged forms were investigated at 77 K up to 101.3 kPa and 303 K up to 4,000 kPa using a static volumetric adsorption system. Hydrogen adsorption at 77 K for NaY and for Ni, Pd, Rh and Ru exchanged zeolite Y was found to be reversible with pressure. The chemisorption of hydrogen was observed at 303 K for Ni, Pd, Rh and Ru exchanged zeolite Y. Rhodium exchange zeolite Y showed the highest hydrogen adsorption capacity of 1.19 and 0.51 wt% at 77 and 303 K up to 101.3 kpa and 4,000 kpa, respectively. Grand canonical Monte Carlo simulations were also performed to study the adsorption of hydrogen in these zeolites at 77 K as well as 303 K. The simulated adsorption isotherms at 77 K are comparable to experimentally measured isotherms.
| Original language | English |
|---|---|
| Pages (from-to) | 657–666 |
| Number of pages | 9 |
| Journal | Journal of Porous Materials |
| Volume | 19 |
| DOIs | |
| Publication status | Published - 7 Sept 2011 |
| Externally published | Yes |
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