Transition metal modified Rh-catalysts can be used for converting syngas (CO+H2) into C2+ oxygenates. It has been found that Mn has a favorable effect in the selectivity towards oxygenates, while addition of Ir to the binary Rh-Mn catalysts significantly increases the space-time yield of C2+ oxygenates. In this paper, we use quantum mechanical calculations to investigate the distribution of promoter sites within Rh rich nanoparticles and their role in the conversion of syngas towards ethanol. This work was supported by the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy Biomass Program. The Pacific Northwest National Laboratory (PNNL) is operated by Battelle for the DOE under Contract DE-AC05-76RL01830. A portion of the research was performed in the Environmental Molecular Sciences Laboratory (EMSL), a national science user facility sponsored by the Department of Energy’s Office of Biological and Environmental Research located at PNNL.
Revised: October 5, 2012 |
Published: July 9, 2012
Citation
Glezakou V.A., J.E. Jaffe, R.J. Rousseau, D. Mei, S.M. Kathmann, K.O. Albrecht, and M.J. Gray, et al. 2012.The Role of Ir in Ternary Rh-Based Catalysts for Syngas Conversion to C2+ Oxygenates.Topics in Catalysis 55, no. 7-10:595-600.PNNL-SA-85103.doi:10.1007/s11244-012-9836-9