!SURFACE MECHANISM FOR OXIDATION OF CO OVER PLATINUM !*********************************************************************** !**** * !**** CO/O2 OVER PT - SURFACE MECHANISM * !**** thermodynamically consistent (273 - 1273K) * !**** * !**** D. CHAN, O. DEUTSCHMANN * !**** KIT (Karlsruhe Institute of Technology) * !**** * !**** References: * !**** D. Chan, S. Tischer, J. Heck, C. Diehm, O. Deutschmann * !**** Applied Catalysis B: Environmental 156–157 (2014) 153–165 * !**** www.detchem.com/mechanisms * !**** KIT (Karlsruhe Institute of Technology) * !**** Contact: mail@detchem.com (O. Deutschmann) * !**** www.detchem.com/mechanisms * !**** * !**** * !**** Kinetic data: * !**** k = A * T**b * exp (-Ea/RT) A b Ea * !**** (cm,mol,s) - kJ/mol * !**** * !**** STICK: A in next reaction is initial sticking coefficient * !**** * !**** * !**** (CHEMKIN format) * !**** * !*********************************************************************** REACTIONS KJOULES/MOLE MWOFF O2 + (Pt) => O2(Pt) 5.000E-02 0.000 0.000 STICK O2(Pt) => (Pt) + O2 5.243E+11 -0.069 19.573 O2(Pt) + (Pt) => O(Pt) + O(Pt) 8.325E+13 -0.000 39.933 O(Pt) + O(Pt) => O2(Pt) + (Pt) 4.444E+21 0.000 264.067 COV / O(Pt) 0.000E+00 0.000 -88.200 / CO + (Pt) => CO(Pt) 8.400E-01 0.000 0.000 STICK CO(Pt) => (Pt) + CO 7.635E+12 -0.139 143.145 COV / CO(Pt) 0.000E+00 0.000 -29.300 / CO2 + (Pt) => CO2(Pt) 3.193E-03 -0.035 2.686 STICK CO2(Pt) => (Pt) + CO2 1.894E+10 0.139 21.855 CO(Pt) + O2(Pt) => CO2(Pt) + O(Pt) 4.124E+13 0.069 9.494 COV / O(Pt) 0.000E+00 0.000 44.100 / CO2(Pt) + O(Pt) => CO(Pt) + O2(Pt) 2.910E+23 -0.069 272.506 COV / CO(Pt) 0.000E+00 0.000 29.300 / CO(Pt) + O(Pt) => CO2(Pt) + (Pt) 4.764E+13 0.069 101.361 COV / CO(Pt) 0.000E+00 0.000 -29.300 / CO2(Pt) + (Pt) => CO(Pt) + O(Pt) 6.297E+20 -0.069 140.239 COV / O(Pt) 0.000E+00 0.000 44.100 / END