TY - JOUR
T1 - Hydrogen sorption in transition metal exchanged zeolite Y
T2 - volumetric measurements and simulation study
AU - Raj, Manoj C.
AU - Prasanth, K. P.
AU - Dangi, Ganga P.
AU - Bajaj, H. C.
PY - 2011/9/7
Y1 - 2011/9/7
N2 - 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.
AB - 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.
UR - http://dx.doi.org/10.1007/s10934-011-9517-2
U2 - 10.1007/s10934-011-9517-2
DO - 10.1007/s10934-011-9517-2
M3 - Article
SN - 1380-2224
VL - 19
SP - 657
EP - 666
JO - Journal of Porous Materials
JF - Journal of Porous Materials
ER -