Combinatorial preparation and infrared screening of hydrogen sorbing metal alloys

摘要

We introduce the use of thin-film combinatorial methods to synthesize Mg-based hydrogen storage alloys and demonstrate the use of spatially resolved infrared imaging as a high throughput hydrogen storage candidate screening technique. Using a combination of pulsed laser deposition and magnetron sputtering, multicompositional samples were produced for hydrogen sorption studies. Analysis is presented of a sample that consists of 16 separate Mg-Ni-Fe ternary pads and 32 Mg-Ni or Mg-Fe binary pads. Hydrogen sorption related emissivity changes observed indicate a substantial decrease in hydriding temperatures, which sensitively depends on composition.