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Formation, Stability, and Reactivity of atomically dispersed transition metals stabilized on oxide supports


EMSL Project ID
44740

Abstract

In the course of our previous studies, we learned that the support may be modified during reaction especially after elevated temperature treatments due to the incorporation of atomically dispersed transition metals. Aberration corrected STEM (AC-STEM) in conjunction with EXAFS provides convincing evidence of the presence of atomically dispersed Pd atoms on the ZnO and also on La-stabilized. The proposed work will focus on the formation, stability and reactivity of these atomically dispersed transition metal species. They constitute a novel form of metal-support interaction where the metal provides atoms get anchored on a support and modify its catalytic behavior. And the results show that these species are stable at elevated temperatures, so they may play a significant role in the overall catalytic reactivity.

Project Details

Project type
Exploratory Research
Start Date
2011-10-14
End Date
2012-10-14
Status
Closed

Team

Principal Investigator

Abhaya Datye
Institution
University of New Mexico

Team Members

Ryan Johnson
Institution
University of New Mexico

Feng Gao
Institution
Pacific Northwest National Laboratory

He Zhang
Institution
Washington State University

Barr Halevi
Institution
University of New Mexico

Boris Kiefer
Institution
New Mexico State University

Yong Wang
Institution
Washington State University

Related Publications

Peterson E, A DelaRiva, S Lin, RS Johnson, H Guo, J Miller, JH Kwak, CHF Peden, B Kiefer, LF Allard, F Ribeiro, and AK Datye. 2014. "Low-Temperature Carbon Monoxide Oxidation Catalysed by Regenerable Atomically Dispersed Palladium on Alumina." Nature Communications 5:Article No. 4885. doi:10.1038/ncomms5885