P-W-B-35 Evolution of Nanoalloy Surfaces Under Oxidation

Wednesday, June 17, 2015
Ballroom B (Lawrence Convention Center)
Supareak Praserthdam, Luis E. Camacho-Forero, Jose M. Berrio, Guadalupe Ramos-Sanchez and Perla B. Balbuena, Texas A&M University, USA.
A systematic DFT analysis of activity and stability differences between slab surfaces and nanoparticles of sizes from 0.53 to 1.93 nm is done on Nicore-Ptshell and (Ni-M)core-Ptshell structures (M= Re, Ru, or Rh). Results include segregation trends of core atoms to oxidized surfaces and stability against dissolution in acid medium.

Extended Abstracts: