Communication

Metallurgical and Materials Transactions A

, Volume 45, Issue 1, pp 1-5

Magnesium Alloy Precursor Thin Films for Efficient, Practical Fabrication of Nanoporous Metals

  • Lei WangAffiliated withDepartment of Chemical and Materials Engineering, University of Kentucky
  • , Nicolas J. BriotAffiliated withDepartment of Chemical and Materials Engineering, University of Kentucky
  • , Phillip D. SwartzentruberAffiliated withDepartment of Chemical and Materials Engineering, University of Kentucky
  • , T. John BalkAffiliated withDepartment of Chemical and Materials Engineering, University of Kentucky Email author 

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Abstract

An improved approach to fabrication of nanoporous (np) metals is demonstrated for several metallic systems that were successfully created by dealloying magnesium-based precursor alloys (also containing iridium, nickel, gold, or osmium-ruthenium). A significant advantage is that magnesium alloys can be dealloyed effectively using water or, if needed, dilute acetic acid. The crystal structures of magnesium-based precursor films were significantly different from those of alloys commonly used as precursors. This approach should be generally applicable to np metal synthesis.