Single nanoparticle (NP) collisions technique has been widely employed in electrocatalysis. However, the short collision duration of single NPs hinders further improvement their electrocatalytic performance. Here, to increase dynamic electron tunneling region, enhanced near-wall hindered diffusion is introduced stochastic process by coupling a Au ultramicroelectrode (UME) with confined microcha...

Among the unconventional approaches of supporting catalyst nanoparticles, layer-by-layer assembly polyelectrolyte multilayers for nanoparticle adsorption represents an easy and convenient method. It enables deposition singularly adsorbed nanoparticles prevents them from aggregating. In this work, polydopamine was grafted onto internal surface a Teflon AF-2400 tubular membrane, known its excelle...

In this study the catalytic activity of different gold and bimetallic nanoparticle solutions towards reduction methylene blue by sodium borohydride as a model reaction is investigated. By utilizing differently shaped nanoparticles, i.e., spheres, cubes, prisms rods well gold–palladium gold–platinum core-shell nanorods, we evaluate effect catalyst surface area available area, shape nanoparticles...

Palladium-cobalt-phosphorus (PdCoP) catalysts supported on carbon (Ketjen Black) were investigated as a cathode catalyst for oxygen reduction reaction (ORR) in high temperature proton exchange membrane fuel cells (HT-PEMFCs). The PdCoP catalyst was synthesized via a modified polyol process in teflon-sealed reactor by microwave-heating. From X-ray diffraction and transmission electron microscopi...