Styrene hydrogenation performance of Pt nanoparticles with controlled size prepared by atomic layer deposition

Abstract

Highly dispersed Pt sub-nanoparticles supported on carbon nanotubes (CNTs) with well-controlled size have been prepared by atomic layer deposition. Their particle size distribution was characterized by TEM. The obtained Pt sub-nanoparticles exhibit unusual catalytic performance for styrene hydrogenation. It is revealed that the turnover frequency (TOF) of the Pt/CNTs catalysts for this reaction correlated well with the Pt particle size. The highest TOF was obtained with the Pt/CNTs catalyst having an average Pt particle size around 0.5–0.7 nm.