O-Tu-408-11 Trapping of Mobile Pt Species By Pdo Nanoparticles Under Oxidizing Conditions

Tuesday, June 16, 2015: 2:30 PM
408-410 (Lawrence Convention Center)
Cristihan Carrillo1, Abhaya K. Datye1, Tyne R. Johns1, Haifeng Xiong1, Andrew De La Riva1, Sivakumar R. Challa1, Ronald S. Goeke2, Kateryna Artyushkova1, Wei Li3 and Chang H. Kim4, (1)University of New Mexico, USA, (2)Sandia National Laboratory, USA, (3)General Motors Global R&D, USA, (4)General Motors Research and Development Center, USA.
Pt was captured by PdO nanoparticles after aging the catalyst in air, forming bimetallic Pt−Pd nanoparticles.  The results show that mobile Pt species are effectively trapped by PdO, representing a novel mechanism by which Ostwald ripening is slowed down.  The results have implications for the development of sinter-resistant catalysts.

Extended Abstracts:

See more of: Catalyst Characterization: Noble Metals
See more of: Catalyst Characterization
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