Transient Bimodal Particle Size Distributions during Pt Sintering on Alumina and Silica

Tabib Zadeh Adibi, Pooya

Wednesday, June 17, 2015

Ballroom B (Lawrence Convention Center)

Pooya Tabib Zadeh Adibi¹, Vladimir P. Zhdanov^1,2, Christoph Langhammer¹ and Henrik Grönbeck¹, (1)Chalmers University of Technology, Sweden, (2)Boreskov Institute of Catalysis, Russia.

Transmission electron microscopy is employed to study Pt particle size distributions on alumina and silica supports as a function of time and temperature. As a common feature, transient bimodal size distributions are observed. A theoretical model is put forth that relates the observed bimodality with surface heterogeneity.

Extended Abstracts:

Tabib et al.pdf (1937.8KB) - Extended Abstract

P-W-B-32 Transient Bimodal Particle Size Distributions during Pt Sintering on Alumina and Silica