Hydrogen generated from hydrolysis of ammonia borane using cobalt and ruthenium based catalysts

Cheng Hong Liu, Yi Chun Wu, Chang Cheng Chou, Bing Hung Chen, Chan Li Hsueh, Jie Ren Ku, Fanghei Tsau

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


Ammonia borane (NH 3BH 3, AB), one kind of promising hydrogen storage materials, is hydrolyzed to produce hydrogen in presence of HCl, Co/IR-120 and Ru/IR-120 catalysts. The kinetics analysis of the AB hydrolysis shows that hydrogen production is of the first-order reaction in regard to both concentrations of ammonia borane and catalysts initially present, respectively. The hydrolyzate of ammonia borane after hydrogen evolution is also characterized with XRD, FT-IR and 11B NMR. Boric acid (H 3BO 3) is found to be the dominant product in the hydrolyzate. Besides, the produced gas is discovered to contain both hydrogen and ammonia according to the GC-MS analysis and the indophenol colorimetric analysis. A possible reaction pathway on hydrogen generation from hydrolysis of ammonia borane is, accordingly, proposed based on the existence of boric acid, hydrogen and ammonia in the products. The total life cycle of ammonia borane is also proposed to illustrate formation of different intermediates during the AB hydrolysis for hydrogen generation and a possible regeneration scheme of the spent ammonia borane.

Original languageEnglish
Pages (from-to)2950-2959
Number of pages10
JournalInternational Journal of Hydrogen Energy
Issue number3
Publication statusPublished - 2012 Feb

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology


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