Direct preparation of LiBH4 from pre-treated LiH + B mixture at high pressure

Rugan Chen, Xinhua Wang*, Lou Xu, Hui Li, Changpin Chen, Lixin Chen, Hongge Pan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


LiBH4 was prepared from LiH + B mixture at 300-500 °C with a hydrogen pressure of 35 MPa. The LiH + B mixture was pretreated by ball milling under 10 MPa hydrogen pressure for 10 h. The results showed that ball-milling treatment is favorable for the formation of LiBH4, which could reduce the reaction temperature for about 200 °C. A small quantity of LiBH 4 could be found in the pre-treated sample. The formation of LiBH4 from LiH + B mixture is a kinetically hindered progress and a diffusion-control reaction. LiBH4 formed at 400 °C could release 6.59 wt.% H2 when it was heated from room temperature to 500 °C. The yield of LiBH4 is about 59.4%.

Original languageEnglish
Pages (from-to)3481-3485
Number of pages5
JournalJournal of Alloys and Compounds
Issue number8
StatePublished - 24 Feb 2011
Externally publishedYes


  • Complex hydrides
  • Hydrides
  • Hydrogen storage materials
  • LiBH


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