Matteo's post-doctoral work on the synthesis of uniform bimetallic Au-based nanocrystals, in a collaboration with Rahul Agarwal and Ritesh Agarwal (UPenn Materials Science and Engineering), is published in Chemistry of Materials! Link
Helen joins the group for the Summer! She is a rising Senior at Palo Alto High School and she brings to the group motivation and her contageous interest for science and engineering. Welcome Helen!
Matteo's post-doctoral work on rapid annealing of nanocrystal catalysts is published in Journal of the American Chemical Society
A simple yet efficient method to remove organic ligands from supported nanocrystals is reported for activating uniform catalysts prepared by colloidal synthesis procedures. The method relies on a fast thermal treatment in which ligands are quickly removed in air, before sintering can cause changes in the size and shape of the supported nanocrystals. A short treatment at high temperatures is found to be sufficient for activating the systems for catalytic reactions. We show that this method is widely applicable to nanostructures of different sizes, shapes, and compositions. Being rapid and effective, this procedure allows the production of monodisperse heterogeneous catalysts for studying a variety of structure–activity relationships. We show here results on methane steam reforming, where the particle size controls the CO/CO2 ratio on alumina-supported Pd, demonstrating the potential applications of the method in catalysis.