Abstract
The development of a practical fuel cell powered automobile is now the focus of intense competition. Full exploitation of the advantages of a fuel cell will require the development of a practical hydrogen storage medium. We introduce the use of thin-film combinatorial methods to synthesize 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, multi-compositional 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 depend on composition.
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