P-M-BRC-137 Fischer-Tropsch Synthesis: Examination of the Coordination Environment and Simulated Regeneration of Pt Promoted Co/Al2O3 Using Oxidation-Reduction Cycles

Monday, June 3, 2013
Ballroom C (Galt House Hotel)
Thani Jermwongratanachai1,2, Gary Jacobs1, Wenping Ma1, Wilson D. Shafer1, Muthu Kumaran Gnanamani1, Pei Gao3, Boonyarach Kitiyanan2, Burtron H. Davis1, Donald C. Cronauer4, A. Jeremy Kropf4 and Christopher L. Marshall4, (1)University of Kentucky, USA, (2)Chulalongkorn University, Thailand, (3)Eastern Kentucky University, USA, (4)Argonne National Laboratory, USA.
Although Pt addition to Co/Al2O3 catalyst facilitates cobalt oxide reduction to improve Co0 site densities, it slightly adversely impacts CO2, CH4, and C5+ selectivities.  EXAFS demonstrate that only Pt-Co bonds were detected up to 5%Pt (no Pt-Pt bonds observed). Oxidation-reduction (OR) cycles suggest sufficient contact of Pt remains with Co.

Extended Abstracts: