Temperature-Dependent Evolution of the Oxidation State of Cobalt and Platinum in Co1-XPtx Bimetallic Clusters Under H2 and CO + H2 Mixture

Yang, Bing

Tuesday, June 16, 2015

Ballroom B (Lawrence Convention Center)

Bing Yang¹, Ghassan Khadra², Juliette Tuaillon-Combes², Eric Tyo¹, Soenke Seifert¹, Xinqi Chen³, Veronique Dupuis² and Stefan Vajda^1,4,5, (1)Argonne National Laboratory, USA, (2)University Lyon & CNRS, France, (3)Northwestern University, USA, (4)Yale University, USA, (5)University of Chicago, USA.

Utilizing GISAXS/GIXAS, we have monitored the evolution of particle size/shape and the oxidation state of supported Co_1-xPt_x bimetallic clusters under operating conditions, and elucidated the different surface structure and chemical state w.r.t. their atomic ratio. The obtained results indicate ways for optimizing the composition of binary alloy clusters for catalysis.

Extended Abstracts:

B. Yang et al_Abstract_NAM_2015, PITTSBURGH.pdf (145.3KB) - Extended Abstract

P-Tu-B-178 Temperature-Dependent Evolution of the Oxidation State of Cobalt and Platinum in Co1-XPtx Bimetallic Clusters Under H2 and CO + H2 Mixture

P-Tu-B-178 Temperature-Dependent Evolution of the Oxidation State of Cobalt and Platinum in Co_1-XPt_x Bimetallic Clusters Under H₂ and CO + H₂ Mixture