Abstract
Mg based hydride electrodes in alkaline solution were protected by coating them with hydrogen-permeable NAFION membranes. The electrodes were fabricated by using Mg based hydrides synthesized by hydriding combustion (HC) technique. The hydriding combustion synthesized (HCSed) powders were further ball-milled and fabricated into pellet-type electrodes with and without NAFION coating. The ball-milled HCSed powder showed nearly three times higher surface area (∼15 m2 g-1) than that of the as-HC synthesized powder, and thus provided higher discharge capacity. Furthermore, the ball-milled HCSed electrode with NAFION coating exhibited nearly 400% higher discharge capacity (713 mAh g-1) than that of the un-coated as-HCSed electrode.
Original language | English |
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Pages (from-to) | 81-84 |
Number of pages | 4 |
Journal | Materials Letters |
Volume | 93 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Keywords
- Electrochemical test
- Hydriding combustion
- MgNi based composite hydride
- NAFION coating