The adsorption of nickelocene (NiCp2) and ruthenocene (RuCp2) on MCM-48 and activated carbon in supercritical CO2 is studied. Adsorption isotherms of NiCp2 on MCM-48 at 70 degrees C and RuCp2 on MCM-48 and Activated Carbon at 60 degrees C and pressures of 11, 14, 17 and 20 MPa have been determined and correlated with Langmuir, Modified Langmuir, Freundlich, Redlich-Peterson models and Brunauer-Emmett-Teller (BET) isotherm. Kinetics of adsorption of NiCp2 on MCM-48 at 70 degrees C and 14 MPa have been experimentally determined and correlated with a pseudo-first order model with a constant rate k(f) = 0.274 h(-1). In the same way, kinetics of adsorption of RuCp2 on MCM-48 and activated carbon at 60 degrees C and 11 MPa have been experimentally determined and correlated with a pseudo -first order model with a constant rate k(f) = 0.844 h(-1) and k(f) = 0.278 h(-1) respectively. (C) 2016 Elsevier B.V. All rights reserved.