SURFACE MECHANISM OF CO OXIDATION OVER RHODIUM *********************************************************************** **** * **** CO/O2 OVER RH - SURFASE MECHANISM * **** thermodynamically constant (273 - 1273K) * **** * **** C. Karakaya, O. Deutschmann 2013 * **** KIT (Karlsruhe Institute of Technology) * **** * **** References: * **** H. Karadeniz, C. Karakaya, S. Tischer, O. Deutschmann, * **** Chemical Engineering Science, Submitted (2013). * **** 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 * **** * **** * **** (DETCHEM format) * **** * *********************************************************************** *********************************************************************** **** 1. ADSORPTION STICK O2 +Rh(s) +Rh(s) >O(s) +O(s) 0.01 0 0 STICK CO2 +Rh(s) >CO2(s) 0.048 0 0 STICK CO +Rh(s) >CO(s) 0.4971 0 0 O(s) +O(s) >Rh(s) +Rh(s) +O2 5.329E+22 -0.137 386.995 CO(s) >CO +Rh(s) 1.300E+13 0.295 134.070 $CO(s) 0 47 CO2(s) >CO2 +Rh(s) 3.920E+11 0.315 20.505 C(s) +O(s) >CO(s) +Rh(s) 1.173E+22 0.000 92.142 CO(s) +Rh(s) >C(s) +O(s) 6.390E+21 -0.000 174.758 $CO(s) 0 47 CO(s) +O(s) >CO2(s) +Rh(s) 6.183E+21 0.034 129.982 $CO(s) 0 47 CO2(s) +Rh(s) >CO(s) +O(s) 5.752E+22 -0.175 106.492 END