Abstract:
A method of generating electrical power includes flowing hydrogen across an anode, splitting the hydrogen into protons and electrons using a catalyst attached to the anode, directing the electrons to a circuit to produce electrical power, flowing oxygen across a cathode, splitting the oxygen molecules into oxygen atoms using a cathode catalyst, passing the protons through an electrolyte to the cathode, and combining the protons with oxygen to form water. The cathode catalyst includes a plurality of nanoparticles having terraces formed of platinum, and corner regions and edge regions formed of a second metal.
Abstract:
A method of forming a catalyst structure includes providing a catalyst support structure having a core and an inner carbide film on the core, depositing catalyst nanoparticles on the catalyst support structure, and forming an outer carbide film on the catalyst support structure after the step of depositing catalyst nanoparticles. The outer carbide film is preferentially formed on the catalyst support structure compared to the catalyst particles.