OF56 Ostwald Ripening Of Individual Nanoparticles - Implications For Catalysts Sintering

Thursday, June 9, 2011: 11:20 AM
Ambassador Ballroom 3 (Detroit Marriott Hotel at the Renaissance Center )
Sivakumar R. Challa, Chemical Engineering, University of New Mexico, Albuquerque, NM, Andrew DeLaRiva, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM and Abhaya K. Datye, Chemical & Nuclear Engineering and Center For Microengineered Materials, University of New Mexico, Albuquerque, NM
Theoretical predictions are presented showing very rapid ripening of individual nanoparticles. Comparison of the results with experimental observations informs that the Kelvin relation under-predicts ripening rate of small particles. Only ripening models that incorporate appropriate size-dependent energetics predict experimentally observed ripening rates.

Extended Abstracts:

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