OB13 Direct Evidence of a Very Strong Metal-Support Interaction in the Pd-LaFeO3 Catalyst-Support System from Atomic Resolution Electron Microscopy

Monday, June 6, 2011: 4:20 PM
Columbus Ballroom (Detroit Marriott Hotel at the Renaissance Center )
Michael B. Katz1, Hong Liu1, Baihai Li Sr.1, Yingwen Duan1, Carolina Adamo2, Darrell G. Schlom2, George W. Graham1 and Xiaoqing Pan1, (1)Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, (2)Department of Materials Science and Engineering, Cornell University, Ithaca, NY
We conduct a mechanistic study of the prototypical Daihatsu Intelligent Catalyst system, Pd-LaFeO3, for three-way automotive catalysis, using atomic-resolution electron microscopy and related spectroscopic techniques. Our results on model thin film catalysts hint at very strong metal-support interactions between catalyst and substrate, serving to stabilize the metal in high dispersion.

Extended Abstracts: