Electrochemical performance of NAFION coated electrodes of hydriding combustion synthesized MgNi based composite hydride

Sae Youn Kim, M. G. Chourashiya, Choong Nyeon Park, Chan Jin Park*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

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 languageEnglish
Pages (from-to)81-84
Number of pages4
JournalMaterials Letters
Volume93
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • Electrochemical test
  • Hydriding combustion
  • MgNi based composite hydride
  • NAFION coating

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