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Proceedings Paper

Development of a mechanical mover device by compositing hydrogen storage alloy thin films with a perfluorosulfonic acid layer
Author(s): Takashi Ogasawara; Haru-Hisa Uchida; Yoshitake Nishi
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Paper Abstract

Perfluorosulfonic Acid (PFSA) film, commonly used in the Polymer Electrolyte Fuel Cells (PEFC), indicates conductance of proton and permeability of H2O. In this study a mechanical composite mover device with this PFSA and hydrogen storage alloy (HSA) thin films was made up for expecting the movement driven by volume change in the course of hydrogen migration between PFSA and HSA layers. Hydrogen storage alloy, such as LaNi5 indicates as much as 25% of volume change in the course of H2 absorption in gas phase. Using this characteristics, a mechanical mover device was made of PFSA film of an electrolyte polymer sandwiched by hydrogen storage alloy thin films with Au-Pd intermediate layers. The mover device was operated by migrating hydrogen ions from the PFSA layer to the HSA layer, which were generated by electrolysis of H2O in a PFSA layer. Electrical potential was given from the outsides lead wires. All experiments were carried out in the water. We confirmed large interesting movement generated by migration of hydrogen ion by applying electric potentials.

Paper Details

Date Published: 8 January 2007
PDF: 6 pages
Proc. SPIE 6414, Smart Structures, Devices, and Systems III, 64140P (8 January 2007); doi: 10.1117/12.695699
Show Author Affiliations
Takashi Ogasawara, Tokai Univ. (Japan)
Haru-Hisa Uchida, Tokai Univ. (Japan)
Yoshitake Nishi, Tokai Univ. (Japan)

Published in SPIE Proceedings Vol. 6414:
Smart Structures, Devices, and Systems III
Said F. Al-Sarawi, Editor(s)

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