! Chalmers kinetics for NO/NO2 reactions on Pt/BaO/Al2O3 ! ! RATE = A T^n exp(-Ea/RT) ! ! A : MOL/S or (M*M*M)/S per kg. of catalyst (washcoat) ! Ea: J/MOL ! ! SDEN : MOL/(M*M) ! ! Cat. loading : SDEN * surface area of cat. per unit reactor volume ! {MOL/(M*M*M)} ! ! Cat. loading : 1.0E+0 MOL/(M*M*M) ! 3.8E-3 MOL/(kg. of catalyst) ! ! ! Ref : A kinetic study of NO oxidation and NOx storage on Pt/Al2O3 ! and Pt/BaO/Al2O3,J. Phys. Chem. B, 2001, 105 ! ! Contributor: Kalyan Chakravarthy, Oak Ridge National Laboratory ! e:mail: kalyan@msr.epm.ornl.gov ! phone : (865)574-3133 ! ELEMENTS N O ! SPECIES ! MOL/(M*M*M) O2 NO NO2 END ! SITE/PLATINUM SDEN/2.7E-5/ O(PT) NO(PT) NO2(PT) PT END REACTIONS O2 + 2PT <=> 2O(PT) 6.6E2 0.0 30.4E3 REV/3.8E12 0.0 209.4E3 COV/O(PT) 0.0 0.0 -23.0E3/ NO + PT <=> NO(PT) 2.5E4 0.0 0.0E0 REV/3.8E13 0.0 115.5E3 NO2 + PT <=> NO2(PT) 2.4E4 0.0 0.0E0 REV/3.8E13 0.0 97.9E3 COV/O(PT) 0.0 0.0 -11.75E3/ NO(PT) + O(PT) <=> NO2(PT) + PT 3.8E10 0.0 101.3E3 REV/2.2E10 0.0 52.5E3