Trimetallic nanostructures: the case of AgPd-Pt multiply twinned nanoparticles.

ABSTRACT: We report the synthesis, structural characterization, and atomistic simulations of AgPd-Pt trimetallic (TM) nanoparticles. Two types of structure were synthesized using a relatively facile chemical method: multiply twinned core-shell, and hollow particles. The nanoparticles were small in size, with an average diameter of 11 nm and a narrow distribution, and their characterization by aberration corrected scanning transmission electron microscopy allowed us to probe the structure of the particles at an atomistic level. In some nanoparticles, the formation of a hollow structure was also observed, that facilitates the alloying of Ag and Pt in the shell region and the segregation of Ag atoms on the surface, affecting the catalytic activity and stability. We also investigated the growth mechanis

SUBMITTER: Khanal S 

PROVIDER: S-EPMC3918169 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature