Engineering Functions into Platinum and Platinum-Rhodium Nanoparticles in a One-Step Microwave Irradiation Synthesis.

ABSTRACT: Platinum (Pt) and platinum-rhodium (PtRh) nanoparticles (NPs) are active catalysts for a range of important industrial reactions, and their response has been shown to be affected by size, morphology, composition, and architectural configuration. We report herein the engineering of these functionalities into NPs by suitably modifying our single-step fabrication process by using microwave irradiation dielectric heating. NPs with different morphologies are acquired by manipulating the reaction kinetics with the concentration of the capping agent while keeping the reaction time constant. Pt@Rh core@shell octopod-cube, Pt-truncated-cube, and cube and small-sphere NPs having "near-monodisperse" distributions and average sizes in the range of 4 to 18 nm are obtained. By increasing the microwave t

SUBMITTER: Kalyva M 

PROVIDER: S-EPMC5390798 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature