Colloidal syntheses of nanoparticles (NPs) are one the preferred approaches to prepare precious metal catalysts. Unfortunately, most colloidal developed require stabilizing agents avoid NP agglomeration and/or control size and morphology. While these surfactants can bring positive features, they typically block catalytically active sites on surface. As a consequence, additives often need be rem...

The fabrication of precious metal (ruthenium, osmium, gold, and iridium) nanocrystals from single atoms has been studied in real-time. The dynamics of the first stage of the metal nanocrystallisation on a doped (B,S)-graphitic surface are identified, captured, and reported.

Title of dissertation: MOISTURE IN MULTILAYER CERAMIC CAPACITORS Daniel Noel Donahoe, Doctor of Philosophy, 2005 Dissertation directed by: Professor Michael G. Pecht Department of Mechanical Engineering When both precious metal electrode and base metal electrode (BME) capacitors were subjected to autoclave (120 oC/100 % RH) testing, it was found that the precious metal capacitors aged according...

A major impediment to the commercialization of fuel cell technology is the low activity of platinum electrocatalyst used for oxygen reduction. Pt has been alloyed with transition metals like Ni, Co etc, which show higher activity, compared to pure Pt. However, Pt remains, an expensive metal of low abundance, and hence, finding a non-noble-metal alternative is of interest. The overall objective ...