Influence of Ti on the formation and stability of gas-phase Mg nanoparticles

Gopi Krishnan*, G. Palasantzas, B. J. Kooi

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The effect of titanium on magnesium nanoparticle formation is investigated in relation to the importance of Mg in hydrogen storage. Addition of Ti reduces the Mg-nanoparticle sizes in the range of 5-20 nm and leads to less protective Mg-oxide shells. This in return accelerates the evaporation of Mg that leads to hollow Mg cores. The presence of oxygen plays a dual role in forming MgO protected stable Mg nanoparticles above a critical size (similar to 15 nm) and hollow ones below this size both due to evaporation and oxidation associated Kirkendall effects.
Original languageEnglish
Article number261912
Pages (from-to)261912-1-261912-3
Number of pages3
JournalApplied Physics Letters
Volume97
Issue number26
DOIs
Publication statusPublished - 27-Dec-2010

Keywords

  • COLLOIDAL MAGNESIUM
  • MICROEMULSIONS
  • HYDROGEN

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