Preparation and hydro-reactivity of ball-milled magnesium-based hydro-reactive metal materials

Qian Sun, Xiao Yan Guo, Mei Shuai Zou*, Rong Jie Yang, Hai Tao Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

To enhance the efficient and rate of magnesium/seawater reaction, Mg-based hydro-reactive materials were prepared via a multiple variable speed cycle process by high-energy milling method in inert atmosphere. Scanning electron microscope (SEM), thermogravimetry (TG) and specific surface test were used to characterize the microstructure and oxidation characteristic of the materials. The real-time amount of hydrogen produced by reaction of Mg-based materials and seawater was recorded using an independent designed metal/water reaction device. The hydro-reactivity of Mg-based hydro-reactive metal materials was studied. Results show that the high-energy milling can significantly enhance the reaction activity of Mg-based materials and seawater. The reaction efficiency of magnesium powder after ball mill reaches 80.5%. Addition of catalyst in the process of ball mill can further enhance the reaction activity of Mg-based hydro-reactive materials. The total yield of reaction can reach 91.1%. The hydrogen generation reaction rate in the fast stage is 741 mL·min-1·g-1.

Original languageEnglish
Pages (from-to)197-201
Number of pages5
JournalHanneng Cailiao/Chinese Journal of Energetic Materials
Volume22
Issue number2
DOIs
Publication statusPublished - Apr 2014

Keywords

  • Catalyst
  • High-energy milling
  • Hydro-reactivity
  • Mg-based hydro-reactive materials
  • Physical chemistry

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